2141 problem(s) found in 1172 milliseconds (displaying 100 problem(s)).

1 - P0000121
Tivadar Kardos
12552 Schweizerische Schachzeitung 12/1984
P0000121
(2+2) C+
-1(w+s), dann h#1
2 Lösungen
1) R: 1. h4xLg5 Le3xDg5, dann 1. La7 Dd8#
2) R: 1. Kb1xTa1 Ta7xDa1+, dann 1. Ka8 Dh8#
play all play one stop play next play all
Doppelt veröffentlicht!
Sally: Als Vier-Steiner ganz beachtlich und als Abwechslung willkommendes, hübsches und interessantes Retrorätsel. (2018-6-25)
comment
Keywords: Help retractor, Kindergarten Problem
Genre: Retro
Computer test: rawbats
Reprints: 6512 Die Schwalbe 115 02/1989
Input: Gerd Wilts, 1995-6-3
Last update: Mario Richter, 2018-6-26 more...
2 - P0000198
Wolfgang Dittmann
Thomas Kolkmeyer

7170 Die Schwalbe 126 12/1990
P0000198
(12+12) cooked
KBP in 16.5, Stellung nach dem 17. Zug von Weiß.
Auf welchem Feld wurde die weiße Dame geschlagen?
Duellantenschach
b) Bg4 nach g2
c) Be7 nach g5
a) 1. Sc3 Sf6 2. Se4 Sd5 3. Sd6+ cxd6 4. Sf3 Sb4 5. Sd4 Sd3+ 6. cxd3 Sc6 7. Dc2 Sa5 8. Dxc8 Sb3 9. Dc4 Sxc1 10. Db3! Sxb3 11. Se6 Sd4 12. Sf4 Sf3+ 13. exf3 Da5 14. g4 Dg5 15. Sd5 Df6 16. Sxf6+ gxf6 17. b4
b) 1. Sc3 Sf6 2. Sa4 Sd5 3. Sb6 Sf6 4. Sxc8 Sd5 5. Sd6+ cxd6 6. Sf3 Sb4 7. Sd4 Sd3+ 8. cxd3 Sc6 9. Se6 Sd4 10. Sf4 Sf3+ 11. exf3 Da5 12. Da4! Dxa4 13. b3 Db4 14. Lb2 Dxf4 15. Lc3 Df6 16. Lxf6 gxf6 17. b4
c) 1. g4 g5 2. Sc3 Sh6 3. Se4 Sf5 4. Sf6+ exf6 5. Sh3 Sd4 6. Sf4 Sf3+ 7. exf3 Sc6 8. Sd5 Sa5 9. Sb6 Sb3 10. Sxc8 Sxc1 11. Sd6+ cxd6 12. De2+! Sxe2 13. b3 Sc1 14. b4 Sd3+ 15. cxd3 De7+ 16. Kd1 De1+ 17. Kxe1
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Cook: a) Dualistisch ab 7. Zug:
1. Sc3 Sf6 2. Se4 Sd5 3. Sd6+ cxd6 4. Sf3 Sb4 5. Sd4 Sd3+ 6. cxd3 Sc6 7. Se6 Sd4 8. Sf4 Sf3+ 9. exf3 Db6 10. b4 Db5 11. De2 Dc6 12. Dd1 Dxc1 13. Dxc1 Tb8! 14. Dxc8+ Txc8 15. Sd5 Ta8 16. Sf6+ gxf6 17. g4 (G. Wilts)
paul: b)1.Sc3 Sa6 2.Sb5 Sb4 3.Sd4 Sd3+ 4.cxd3 Sf6 5.Sf5 Sd5 6.Sd6+ cxd6 7.Sh3 Sb4 8.Sf4 Sc2+ 9.Qxc2 Qc7 10.Qb3 Qxc1+ 11.Qd1 Qc6 12.Qc2 Qf3 13.Qxc8+! Rxc8 14.exf3 Rd8 15.Sh5 Ra8 16.Sf6+ gxf6 17.b4 (Jacobi). So, wQ could be taken at c8. (2018-9-18)
paul: c)The position could be obtained even faster: 1.Sc3 Sh6 2.Se4 Sf5 3.Sf6+ exf6 4.Sh3 Sd4 5.Sf4 Sf3+ 6.exf3 g6 7.g4 g5 8.Sg6 Qe7+ 9.Sxe7 Sc6 10.Sxc8 Sd4 11.Sd6+ cxd6 12.Qe2+ Sxe2 13.b3 Sxc1 14.b4 Sd3+ 15.cxd3.(Jacobi) (2018-9-18)
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comment
Keywords: Castling (wgsg), Single Combat, Where was piece x captured?, Unique Proof Game
Genre: Retro, Fairies
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-2-7 more...
3 - P0000245
Karlheinz Bachmann
7513 Die Schwalbe 131 10/1991
6. Preis
Informalturnier 1991
PR: Dimitri Pronkin
P0000245
(2+1) C+
BP in 16,5
1. Sf3 e5 2. Sxe5 Df6 3. Sxd7 Dxb2 4. Sxf8 Dxa2 5. Sxh7 Dxb1 6. Txa7 Txh7 7. Txa8 Txh2 8. Txb8 Txg2 9. Txb7 Txf2 10. Txc7 Txe2+ Lxe2 11. Dxc1 0-0 12. Dxd2 Tfxf7 13. Dxe2 Txc8+ Kxf7 14. Txg8 Dxc2 15. Txg7+ Kxg7 16. Dxc2
play all play one stop play next play all
paul: Jacobi+ (in about 30 min) (2018-8-17)
comment
Keywords: Unique Proof Game, Massacre PG, Castling, Rex solus (s), Aristocrat
Genre: Retro
Computer test: Jacobi+
Reprints: 7513 Die Schwalbe 146, p. 453, 04/1994
feenschach 137, p. 371, 08-09/2000
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-9-7 more...
4 - P0000400
Waleri A. Liskowez
4295 Die Schwalbe 80 04/1983
P0000400
(14+9)
#2 BG
3 partial solutions in a specific order!

I 1. fxe6ep a try by the BG-logic (beruehrt-gefuehrt) with no
justification 1. ... 0-0-0/- 2. Qc4#/Rxg8# If rejected, the key must be
returned back:
II Unless the touched wP has a move:
1. Nxe5! (1. ... 0-0-0?? illegal)
If rejected again: the touched wP does have a move (ep!) and, thus, W must make it:
III 1. fxg6ep fxg6+ 2. f7#! (1. ... 0-0-0??)
NOT:
II 1. Nc5?? was illegal by the rule of touching chessmen.
(II 1. Kxe5?).
The last move g6(7)-g5 locks wRh8. ... Thus, castling implies ep
play all play one stop play next play all
A.Buchanan: Valery is one of the most rigorous and imaginative retro composers but very often I can’t follow his solutions as they omit too many intermediate steps. Here is an example. Can someone explain the details please? (2018-10-5)
VL: Indeed, some extra details need for the understanding, especially at present. Let me try to clarify a bit.
First of all, BG stands strongly instead of PRA. Restipulated as a PRA problem, this problem would have been soluble (of "Typ Oeffner", aka "a priori", with two partial solutions) but unsound since both 1.Sc5 and 1.Sxe5 solve if castling is illegal. BG always works with PRA-like problems (sound or not).
BG is a hybrid controversial genre that allows to find and justify partial solutions by means of some active actions (in the spirit of RS and AP!) that aren't necessarily legal moves at the moment when they are fulfilled. Namely, BG permits to introduce move attempts into the actual solution as if the moves were fulfilled OTB (of course only meaningful attempts are taken into account; in fact only ep captures or around). Such an attempt forces the referee/opponent to specify the prehistory: the attempt may be adopted (one partial solution), or it may be rejected as contradicting the prehistory of the position (another partial solution). However (contrary to usual PRA variations), in the latter case, the rejected move should be replaced by a move in accordance with the rule of touching pieces.
Now, it is assumed that any capture is made physically in exactly one way: both participating pieces are touched simultaneously...
It is worth adding to the provided solution that wrong (premature) would be the second try II 1.fxg6ep? since after rejection, White were forced to replace it by the capture of the touched bPg5 by an officer, with no mate!
In general, in my opinion, quite a natural logic. However, a very sophisticated scenario with the unexpected rejection of the second (not ep!) try of capturing Pe5. Simpler are my earlier BG-problems including ones considered in my old article Anwendung der `ber"uhrt-gef"uhrt'-Regel in Retroproblemen, Die Schwalbe, 1981, H.69. (2018-10-7)
A.Buchanan: Valery, I love you, but I don't find this sufficient. It is probably a good high level reminder if addressed to someone who basically understands BG,PRA,RS,AP intimately already. It has helped me to expand the definition of the Touch Move keyword. But it does not address my request to make the solution sufficiently detailed. My perspective is almost always to render our art comprenensible by intelligent newcomers from facebook, whatsapp, chess.com etc. It is insufficient to explain in terms of PRA,RS,AP, because those are insufficiently defined here in PDB. You said this is a complicated one: I will pick a simpler one, and have a go to solve that. If the best tutorial is in your 1981 article, maybe you can make that available online, or send it to me, and I will publicize it. Thanks so much! (2018-10-7)
comment
Keywords: Touch Move, Castling (sg), Promoted material on the board (L)
Genre: Retro, 2#
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-7 more...
5 - P0000849
Gerd Rinder
184 Die Schwalbe 4 04/1970
P0000849
(2+16)
#2 (RV)
1. Dxg7 oder 1. Dc7
play all play one stop play next play all
Eine der beiden schwarzen Rochaden ist unmöglich, da entweder wBa2 oder wBh2 auf a8/h8 umgewandelt haben müssen, um als Schlagobjekt zur Verfügung zu stehen.
Sally: °
Das Diagramm zeigt zwei Problemstellungen,eine mit zulässiger
s0-0. Die gesamte schwarze Mannschaft steht auf dem Brett. Die
sBB schlugen von rechts nach links 12 mal, dazu axb = 1,
zusammen 13 mal. Weiß vermisst zwar 14 Steine. doch konnten seine Randbauern nicht von den sBB geschlagen werden. Einer davon müsste sich umwandeln, um als Schlagobjekt dienen zu können, der andere fiel duech eine schwarze Figur. So wurde die s0-0 bei Umwandlung des wBh verwirkt (Stellung a), die
s0-0-0 bei Umwamdlung des wB5b (Stellung b). Jeweils eine Rochade bleibt zulässig.
a) 1. Dc7! (2. De7#) - Kf8, 2. Df7#.
.. 1. - Lf8,2. Dd7#; 0-0 unzulässig!
b) 1. Dxg7!(2. De7#) - Kd8, 2. Dd7#.
.. 1. - Th7,2. Dg8#; 0-0-0 unzulässig. (2018-8-29)
comment
Keywords: Castling (sksg), Partial Retro Analysis (PRA)
Genre: Retro
Reprints: Problem 148-151 11/1972
D19 feenschach 27, p. 27, 04/1975
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-9-7 more...
6 - P0000957
Theophilus Harding Willcocks
Die Schwalbe 1949
P0000957
(4+8)
Letzter Zug?
R: 1. a7xTb8=L
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Yoav Ben-Zvi: WBd8 can be replaced with a BN after moving BPg7 to f7 and BPh5 to h6. (2018-8-8)
A.Buchanan: Yes after all these years, I found this a few months ago, but when I told Thomas Brand, he said that Werner Keym had found it - one of a series of modifications through seeking to avoid non-standard material. (2018-8-12)
Henrik Juel: Werner's improvement can be found in his 'Eigenartige Schachprobleme' from 2010, p.196, dia 1.68 (2018-8-12)
A.Buchanan: I thought it was more recent (2018-8-12)
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comment
Keywords: Type A, Last Move? (BxT=L), Promotion in the retro play (L), Economy record, Non-standard material
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-8-9 more...
7 - P0001162
Luigi Ceriani
36 Europe Echecs 24 08/1960
P0001162
(11+15) cooked
Löse die Stellung auf!
Brassaud: Les pions noirs en b3-b5 et c4 ont fait 3 prises, le Fou blanc a été pris en f1 et un pion blanc pris colonne h. Intention de l’auteur : rétro jeu 1) d4xDe5+, Dg3 2) d3, Te6 3) d2, Te4 4) Th4, Tg4e4+ 5) Th5, h7 6) Th4, Ta4 7) Th5, Ta1 8)Th4, Tc1 9) Th5, Tc3 10) Th4, Te3 11) Th5, Te6 12) Th4, Tg6 13) Th6, Te6 14) Tg6, b4 15) Tg8, Th6 16) Tf8 Tg6xh6 17) Th8, Tg8 18) h5, Td8 19) Tg8, Td7 20) Th8, Tc7 21) Fb8, Ca7 22) Tc8, Td7 23) Tc7c8+, Cc8 24) Fa7, Td8 25) Tb7, Td7 26) Tb8, Tb7 27) Ta8, Tc7 28) Fb8, Ca7 29) h4, Cc8 30) Ta3, Ca7 31) Td3, Cc8 32) Td4, Da3 33) Tf4d4+
La dame blanche peut sortir, la Tour noire en c7 peut regagner la case h8 et le Fou noir la case f8. On peut alors reprendre g7-g5 etc …
Une bien belle balade de tours, mais qu’elle est la démolition ? (2017-10-17)
Henrik Juel: Cook:
-1.d4xDe5 Dg3 -2.d3 Te6 -3.d2 Te3 -4.Th4 Tg4, retract Tb4 to g6, -12... h7 -13.Th6 Te6 -14.Tg6 Te3! -15.Tg8 Te6 -16.Tf8 Th6 -17.Tg8 Tg6xPh6 -18.Th8 Tg8 -19.h5 Td8 -20.Tg8 Td7 -21.Tf8 Tc7 -22.Lb8 Sa7 -23.Tc8 Td7 -24.Tc7 Sc8, retract Tc7 to a8, Td7 to c7, -28.Lc8 Sa7 -29.h4 Sc8
In the intended solution Black wasted b4-b3 at -14., forcing White to retract Ta8 to f4 to release the SE corner, but in the cook this also works:
-30.T=a7 b4 -31.a6 Sa7 -31.a5 a6xTSb5 etc. (2017-10-17)
Mario Richter: A much more simple cook is:
R: 1. d4xDe5+ Dg3-e5+ 2. d3-d4 Tg7-g6 3. d2-d3 Dh4-g3! 4. Kf4-f5 g6-g5+
which completely avoids the retro-opposition trouble in the north-west corner, so we first should check, if the given position is correctly typed into the PDB. Is it eg. in one of the Ceriani-books? (2017-10-17)
Brassaud: Remerciements pour ces explications ! (2017-10-17)
Gerald Ettl: Korrekturversuch:
Weiss:Bb6c6d3a2e2f2g2 La7 Tc5g4 Dh2 Kf5 Schwarz:Be7f7h6b5d5g5c4a3 Sc8h1 Lh3g1 Te6g6 De5 Kd6
R: 1.Dg3e5+ d2d3 2.Te4e6 Th4g4 3.Tg4e4+ Th5h4 4.h7h6 Th6h5 5.Te6g6 Tg6h6 6.Te3e6 Tg8g6 7.Te6e3 Tf8g8 8.Th6e6 Te8f8 9.Tg6xBh6 Th8e8 10.Tg8g6 h5h6 11.Td8g8 Tf8h8 12.Td7d8 Th8f8 13.Tc7d7 Lb8a7 14.Sa7c8 Tc8h8 15.Td7c7 Tc7c8+ 16.Sc8a7 La7b8 17.Td8d7 Tb7c7 18.Td7d8 Tb8b7 19.Tb7d7 Ta8b8 20.Tc7b7 Lb8a7 21.Sa7c8 h4h5 22.Sc8a7 Ta4a8 23.Sa7c8 Tb4a4
wT nach f4 (2018-6-24)
comment

Genre: Retro
Input: Gerd Wilts, 1995-6-3
8 - P0001605
Dmitri W. Pronkin
Andrey Frolkin

475 Europe Echecs 337 01/1987
P0001605
(1+16) C+
BP in 17,0
1. d3 h6 2. Lg5 hxg5 3. h4 Txh4 4. a4 Txa4 5. Th6 Sxh6 6. g4 Sxg4 7. Lg2 Sxf2 8. Lc6 Sxc6 9. d4 Sxd4 10. c4 Sxe2 11. c5 Sxg1 12. c6 dxc6 13. Dd4 Dxd4 14. Ta3 Dxb2 15. Th3 Lxh3 16. Sc3 0-0-0 17. Sd5 Txd5= patt!
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Henrik Juel: Black makes 15 captures.
The first 13.0 moves are correct by Euclide 1.0, but it takes some 4 minutes, so a complete test would probably take more than a day (2014-12-9)
paul: Jacobi checked the last 16 moves (in about 20 min). (2018-5-10)
Mario Richter: I would like to label this problem as a "Massacre PG", but the current definition of that term only knows of two-sided MPGs. Perhaps we could make the same differentiation as for "Homebase"?!
Btw., wasn't "popeye" best for such massacres?
rawbats confirms complete correctness of the problem after approx. 25 minutes. (2018-5-11)
Henrik Juel: Yes, Mario, Popeye is fairly good at this type
C+ by Popeye 4.61 in 57 minutes (2018-5-11)
A.Buchanan: @Mario: yes I agree it would be good to make massacre more specific. There are 69 massacres currently, almost all 2-sided, but maybe also some series-movers (unique or non-unique) which are currently not counted? (2018-5-12)
comment
Keywords: Unique Proof Game, Castling, Homebase (w)
Genre: Retro
Computer test: rawbats
Reprints: 116 Shortest Proof Games 11/1991
20a 64 Proof Games 2012
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-5-11 more...
9 - P0001659
Andrey Frolkin
Leonid Lyubashevsky

528 Europe Echecs 370 07-08/1990
3. Preis
P0001659
(13+15) C+
BP in 19,5
1. e4 c5 2. Ld3 c4 3. Se2 cxd3 4. 0-0 dxe2 5. e5 e1=T 6. e6 Te5 7. a4 Tb5 8. Ta3 d5 9. Tg3 Ld7 10. Tg6 fxg6 11. exd7+ Kf7 12. Dg4 e5 13. f3 Dg5 14. Kf2 Lc5+ 15. Ke1 Se7 16. d8=L Tf8 17. La5 Kg8 18. Lc3 a5 19. Th1 Sa6 20. De6+
play all play one stop play next play all
paul: The first 17,5 moves checked by Euclide 1.11. (2018-8-9)
Henrik Juel: C+ by Natch 3.1 in less than 4 minutes
This is one of the (few) cases where Natch beats Euclide... (2018-8-9)
Henrik Juel: The diagram position suggests that Black castled and White did not, but actually it is the other way round
This double castling paradox is achieved in 18.5 moves at the cost of two obvious promotions (2018-8-9)
comment
Keywords: Unique Proof Game, Non-standard material, Castling (wksk), Castling Paradox (wk hidden sk fake), Promotion (Lt), under-promotion
Genre: Retro
Computer test: Natch 3.1
Reprints: 574 Ukrainisches Album 1986-1990
90 Shortest Proof Games 11/1991
(17) diagrammes 15 07-09/1994
5 feenschach 121, p. 306, 11/1996
feenschach 141, p. 157, 06/2001
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-8-10 more...
10 - P0001664
Leonid M. Borodatow
533 Europe Echecs 373 10/1990
P0001664
(8+9)
Wer gewinnt?
Beispielauflösung (mri)
R: 1. Sa3-b1 e3xBd2 2. Sb5-a3 f4xLe3 3. Lc5-e3 g5xSf4 4. La3-c5 h6xDg5 5. Lc1-a3 h7-h6 6. b2xTc3 Tf3-c3 7. Sg6-f4 c3-c2 8. Lb3-d1 Tf8-f3 9. Lg8-b3 Ta8-f8 10. f7xDg8=L Dd8-g8 11. Df4-g5 Kd1-e1 12. Sd6-b5 Kc2-d1 13. Sc8-d6 Kb3-c2 14. Df1-f4 Kc4-b3 15. Dd1-f1 Kd5-c4 16. f6-f7 Ke6-d5 17. Kf1-g1 d4xBc3 18. c2-c3 Kf7-e6 19. Ke1-f1 d5-d4 20. Sb6xLc8 e6xBd5 21. c4xSd5 Se3-d5 22. b3xTc4 Sf1-e3 23. f5-f6 Ke8-f7 24. f4-f5 Se3xLf1 25. f2-f4 Tf4-c4 26. Sc4-b6 Tf8-f4 27. Sa3-c4 f7xTe6 28. Sb1-a3 Tg8-f8 29. Ta6-e6 Sd5-e3 30. Ta1-a6 Sf6-d5 31. a2xSb3 Sc5-b3 32. Sf8-g6 Th8-g8 33. Se6xLf8 Sg8-f6 34. Sf4-e6 Sa6-c5 35. Sh3-f4 Sb8-a6 36. Sg1-h3
play all play one stop play next play all
AV: Les Noirs ont le trait et gagnent. Derniers coups : 1 bxT(D,C)c3 h7-h6 2 Fc1-a3 hxT(D)g5 3 Fa3-c5 gxD(T)f4 4 Fc5-e3 fxFe3 5 Cb5(c4)-a3 exPd2 6 Ca3-b1. (2005-6-28)
hans: Dont think this solution is correct (Ld1 is promoted pawn on g- or e-line) (2018-5-24)
Henrik Juel: Good to hear from you again, Hans
I think that the AV solution is OK
With German-like notation the retroplay could be
-1.Sa3 e3xPd2 -2.Sb5 f4xLe3 -3.Lc6 g5xSf4 -4.La3 h6xTg5 -5.Lc1 h7 -6.b2xTc3
The other captures by White pawns were: a2xb3xc4xd5 and, e.g., f7xe8=L
[Pf7] went something like f7xDe6xPd5xPc4-c3-c2 (2018-5-24)
Henrik Juel: ... more precisely: a2xb3xc4 and cxd (2018-5-24)
Henrik Juel: ... and -3.Lc5, not Lc6 (2018-5-24)
comment
Keywords: Retro Opposition, Whose move?, Promoted material on the board
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Mario Richter, 2018-5-25 more...
11 - P0001722
Thomas R. Dawson
Charles Edward Kemp

5677 The Fairy Chess Review 8 10/1943
P0001722
(8+12)
h=Retropatt in 3
R: 1. Kf7xSe7 Sc8-e7 2. Kg8xTf7 Tc7-f7! 3. 0-0 Td7-c7 Retropatt
play all play one stop play next play all
Henrik Juel: Stipulation should be 'help-retrostalemate in 3'. -0... Kf7xSe7 -1.Sc8 Kg8xTf7 -2.Tc7! 0-0 -3.Td7 and Black is retrostalemate. Not a defensive retractor, but a help retractor with a weird aim. (2004-3-18)
Sally: Zurück:
1. Kd7xSe7? - Sg8-e7,
2. Kc8xTd7? - Tg7-d7,
3. O O O??? - Tfg7!
In der Verführung wäre die Rücknahme der langen Rochade illegal, da der w. Bauer a2 als Schlagobjekt im Osten gebraucht wurde und sich auf "a8" umwandelte. Somit musste der
schwarze Turm auf "a8" bereits gezogen haben! (2018-6-5)
comment
Keywords: Help retractor, Symmetrical position, Asymmetrical solution, Castling
Genre: Retro
Reprints: 336 FIDE Album 1914-1944/III 1975
H28 ASymmetrie 2013
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-6-5 more...
12 - P0002005
George Hume
6 British Chess Magazine 20/12/1893
P0002005
(11+9) cooked
s#1
R: 0. Bg2xSh1=S, dann 0. ... Tgxh1,Thxh1 1. Lxg2+ Txg2#
play all play one stop play next play all
Original solution text: Black has just played P from K Kt 7, taking Kt on R sq, claiming Kt double ch; but as the thereby discovers ch th his own K, White calls upon him to retract his move, and take the Kt legally, viz.: either RxKt, then White 1 BxP ch, RxB mate. (Frank Müller)
In modern notation: Black just played g2xSh1=S illegally. White asks him to retract this and to capture the knight legally, so Black then plays Tgxh1 or Thxh1. Either way White forces selfmate by 1. Lxg2+ Txg2#. (Henrik Juel)
Cook: Question: is this cooked? In "Retrograde Analysis" by Dawson and Hunsdorfer, this is given as one of several examples where both kings are apparently in check. In the solution, they give no mention of the choice of piece captured on h1, and on the next page compliment the problem as being "more plausible" and "sounder" than the other examples, because "in the latter other suppositions would explain the matter just as well". However I think that D&H missed something here. The pieces outside the SE corner only serve to try to force uniqueness of the illegal move, indicated in the original solution.
A.Buchanan: Why was it S captured on h1? Could be anything even wL. E.g. R: 1. gxh1=S Sf3 2. ke1-f1 Dd2+ unwinds ok. Need e.g. to replace wBa4 with wLa5 to force gxSh1=S. Agreed? (2018-10-5)
Mario Richter: Andrew's suggestion doesn't force gxSh1, it's still possible to retract gxLh1. The resulting position (sPawn g2, wLa5+wLh1) can be explained by e.g.
wPawnCaps: b2-b4xBa5 d2xLe3 c2xSd3xLe4xDf5xTg6xSh7
wProms: a8=D a8=L
sPawnCaps: c7xDd6-d5xSe4xTf3xTg2
sProms: b1=T
White's last move after 1. ... g2xLh1 might have been 2. Db4-d2! Ke1-f1 3. Sd2-f3+ (2018-10-5)
A.Buchanan: Hi Mario, well nearly. So wSc2 instead of wLa5 will do it. (2018-10-5)
A.Buchanan: But no: R: 1. g2xh1=S S~f3 2. f3xg2 etc allows the retraction whatever the piece captured on h1. (2018-10-6)
A.Buchanan: I have a fix for this that Mario has verified (thank you!) and will try to publish. (2018-10-7)
more ...
comment
Keywords: Illegal position, Touch Move, Retract illegal move, Joke
Genre: Retro, s#
Reprints: 7 Retrograde Analysis 1915
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-7 more...
13 - P0002051
Frideswide F. Rowland
Chess Fruits 1884
P0002051
(15+10)
Nehme 3 Einzelzüge zurück, dann #2 durch Weiß.
Weiß am Zug.
R: 1. ... 0-0 2. Ld5-a8 b7-b6, dann 1. ... Txh8+ Kd7 2. Dxc7#
play all play one stop play next play all
One of the best tests for thoroughly understanding problems of this class is to play a game up to the position. If the solver succeeds in doing so he will find that he has made the moves which are to be retracted, as such must be made to arrive at the position.
A better way is to give the problem an analytical examination, count the numer of captures made on either side, and note where each of the men played from, when and how they played, was it by capturing or otherwise. In the above problem we note that White lost a R only, which must have been captured by Black's KP [e7xf6], as its position shows that it made a capture. Black lost six men, the number off the board. His QP at Q7 [sBd2] did not play from B6 [c3xd2?] ass it made no capture, and consequently could not have moved last, neither could his QKtP [sBb7] or KP [sBe7], otherwise White's Bs could not be where they are. His KRP [sBh7] is off the board - our analysis will presently account for how it was captured. It is obvious that his R at R3 [sTa6] could not have played last, neither could R at RBsq [sTf8], as then the White K would have been in check, and it is not allowable to suppose that it remained in check.
Now the question is, Could Black's last move have been K from Rsq to Ktsq [sKh8-g8], moving from a check given by the R? This, we find on a further analysis, could not be, as the White R did not capture Black's KRP, consequently it could not have given check at the square it stands on. None of the White's pieces made a capture, the men were taken by his Pawns only, QP at QR5 [wBd2xc3xb4xa5] took three, and KP, KBP, and KRP took one each [wBe2xd3,wBf2xe3,wBh2xg3], none of them could have taken a P, consequently it follows that six Black pieces off the board were captured. There are only five Black pieces off the board, also a P, that P is Black's KRP [sBh7], which moved down the file to R8 [h1], was promoted to a Piece, and duly captured.
After all this we find that there is only one possible move Black could have made on his last, and that was Castles, this we accordingly retract. Having retracted it, we look to see what move White could have played for his last. All his men appear to be free, that is, not confined as Black's are, and it may appear difficult to determine what his last move was. In this case we look to see what Black's second last move could have been.
He did not play K or KR [sTh8] as he was able to castle after, neither could he have played QR or QP [sTa6,sBd2], it is also obvious that he did not play KPxR [sBe7xTf6], in consequence of the B at Q8 [wLd8 (außerdem auch, weil sonst der sLf8 als Schlagobjekt fehlt)], but if the B at QR8 [wLa8] were not there he could have played P to Kt3 [sBb7-b6]; consequently to allow of this second last move of Black's, White must retract a move made with his KB. There is only one square it could have played from and that is Q5. Therefore B at Q5 to R8 [wLd5-a8] was White's last move, and P at QKt2 to Kt3 [sBb7-b6] was Black's second last move.
White for his last move could not have made a capture with any of his Ps as Kts stand behind QP and KBP, the KP played early in the game to allow KB to play out, and KRP did likewise to allow Black's RP to play to R8.
The conditions of the problem do not ask for more than two of Black's moves to be retracted, yet the solver could demonsterate what his third last move was, viz., R to R3 [sT-a6].
On word as to the line of play leading up to the position. It may be considered very bad play, and it would be such were it played as a game, burt no matter how improbable the line of play may be, as long as the moves are possible they are sufficient to prove that the position can be arrived at and consequently sound.
Having retracted the moves in the problem [1. ... 0-0 2. Ld5-a8 b7-b6] we give, White mates by 1 RxRch, I K to Q2, 2 QxBP mate.
Frideswide F. Rowland in 'illustrated Science Monthly': "Retraction Problems take the form of end games in which one or more moves are to be retracted prior to playing to effect the required mate. There are two classes, which we will term legal and illegal. In the former the position is constructed in strict conformity with the laws of the game, and proof is shown that the moves to be retracted are those which have been actually made. Problems of this class are, as a rule, most ingenoiusly set, instructive to the solver, and worthy of more attention than is given to themby the composer. There is some difficulty in their construction which may perhaps be the cause of their not being more frequently composed.
In the latter class the move to be retracted may be any, according to the whim of the composern, which will allow of the mate which follows it. There is no proof to show what the last move was, it is left with the solver to assume that the move to be taken back was the one made. These problems are neither ingenious nor abstruse, and very much inferior to all other classes. They are constructed by simply setting up an ordinary direct mate position and misplacing one of the men, the replacing of which constitutes the retraction. If the conditions of such a problem is 'Retract White´s last move and then White to play and mate', it simply means White is to make two moves in succession. We dismiss this class as one unworthy of further attention and give our solvers an illustration of the legal Retraction Problem."
Henrik Juel: -1... 0-0 -2.Ld5 b6, 1.Txh8+ Kd7 2.Dxc7#, although Black has the move! (2004-3-8)
A.Buchanan: Maybe the idea was that by moving b6, Black was playing out of turn and the error when detected later had to be unwound. Black’s prior move had to have been R-a6 from somewhere. (2018-8-29)
A.Buchanan: Her remarks about retractor types are surprisingly direct. Mrs Baird wouldn’t have been too pleased to read that! (2018-8-30)
Henrik Juel: Andrew, on your first comment:
I believe that Frideswide just did not care about irregular move order, which is surprising in view of her 'modern' view on retro problems
On your second comment:
Yes, apparently there was no love lost between the two women; Frideswide was the better analyst, but Mrs. B managed to produce the beautiful Twentieth Century Retractor (I have seen the book) (2018-8-30)
A.Buchanan: @Henrik I disagree that "Frideswide just did not care about irregular move order". Actually I think she cared very much, with two problems here revolving around the idea of unwinding play out of turn. (2018-10-7)
comment
Keywords: Castling in the retro play (sk), Help retractor
Genre: Retro
Reprints: Illustrated Science Monthly , p. 223, 06/1885
29B Retrograde Analysis 1915
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-9-7 more...
14 - P0002070
Joseph C. J. Wainwright
American Chess Bulletin 04/1912
P0002070
(7+2) C+
#3
1. b4+? Kb1 2. Lb3 Ka1 3. 0-0?
1. Lb3! Kb1 2. Kd1 Ka1 3. Kc2#
play all play one stop play next play all
Martin Ramsauer: Reprint: Schach-Echo 08/1936, Umschlag-Innenseite (Artikel "Die Scheinlösung" von Emil Ramin) (2018-8-23)
Henrik Juel: Kc1 entered via d2 or e1, so White may not castle
1.Lb3 Kb1 2.0-0?
C+ by Popeye 4.61 (2018-8-23)
comment
Keywords: Cant Castler, Castling (wk)
Genre: Retro
Computer test: Popeye 4.61
Reprints: 40 Retrograde Analysis 1915
Schach-Echo 08/1936
2 L'Echiquier de Paris 01/1956
RA7 diagrammes 13 02/1975
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-9-11 more...
15 - P0002206
Samuel Loyd
Le Sphinx 10, p. 145, 01/10/1866
P0002206
(16+16)
#4
Schwarz kopiert die weißen Züge
3 Lösungen
1) 1. c4 c5 2. Da4 Da5 3. Dc6 Dc3 4. Dxc8#
2) 1. d4 d5 2. Dd3 Dd6 3. Df5 Df4 4. Dxc8#
3) 1. d4 d5 2. Dd3 Dd6 3. Dh3 Dh6 4. Dxc8#
play all play one stop play next play all
Als Schachgedicht "Loyd und der Pigeon" von C. Kupffer im Deutschen Wochenschach 24.11.1907 (Quelle: Sam Loyd und seine Schachaufgaben, 1926, S. 469)

Loyds englische Formulierung der Forderung: "If both parties make the same moves, how can the first player mate in four moves?"

in 'Ruy Lopez' abgedruckt in der Rubrik "Partidas de fantasia"

Originalabdruck in 'Le Sphinx' in der Rubrik: "Questions du Sphinx" mit folgendem Text:
"Deux joueurs sont en présence et se disposent à commencer une partie. Celui qui les Noirs ne connaît rien du jeu; mais, après s'être donné comme très-fort, il n'a pu se dispenser d'accepter le défi. Il s'est dit en lui-même qu'il lui suffirait, pour se tirer dèmbarras, de copier exactement tous les couops de son adversaire. Le joueur qui a les Blancs, ayant flairé le manége, jouen en conséquence et donne le mat au quattrième coup.
Comment, les Blancs ayant le trait et les Noirs jouant les mêmes trois premiers coups que leur adversaire, celui-ci peut-il obtenir le mat en quatre coups?"
Frank Müller: Im American Chess Journal 1876, Seite 48, wird nur die Lösung mit 1. c4 genannt. (2015-2-23)
Henrik Juel: The third solution is similar to the first, so they are probably a sort of cooks, later promoted to solutions.
1. d4 d5 2. Dd3 Dd6 3. Dh3 Dh6 4. Dxc8# (2015-2-23)
Henrik Juel: After the re-numbering it is solutions 2) and 3) that look like cooks (2015-2-23)
A.Buchanan: I don't think this is a fairy: I think it's just a conditional problem. If it was a fairy, then it would be cooked by e.g. 1. Sa3 Sa6 2. Sb5 Sb4 3. Sc7# since Black cannot continue to imitate White. (2018-9-2)
more ...
comment
Keywords: Conditional problem, Construction task
Genre: n#
Reprints: American Chess Journal , p. 18, 15/06/1876
333 Chess Strategy [Loyd] , p. 174, 1878
Ruy Lopez 3 03/1897
Deutsches Wochenschach , p. 418, 24/11/1907
61-I Sam Loyd and his Chess Problems , p. 58, 1913
61/I Sam Loyd und seine Schachaufgaben 1926
feenschach 46, p. 81, 04-06/1979
K166 Problemkiste (94) 08/1994
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-9-2 more...
16 - P0002212
Anders Olson
7817 Springaren 57 06/1994
P0002212
(0+1)
h-retro-#2
Circe
b) wKg4, sKg1
c) wKb1, sKg6
d) wKe1, sKg7, sBf7
e) wKf8, wBh4, sKg6
A.Buchanan: There are today 1050 Circe problems in PDB which are not marked as fairies! Most are retros, and some poor person has already spent time and energy entering them under the mistaken assumption that a problem can only have 1 genre. And this is just 1 fairy condition. There is no point in us fixing them one by one because if Gerd ever returned to active maintenance of the site, he could fix the whole issue in a few minutes. Very frustrating. PDB is a great system but has a huge data quality issue. (2018-9-20)
Henrik Juel: This problem has the added difficulty that it is unclear what is expected by the solver
Possibly, in part a), the first white 'retraction' is just the addition of the white king somewhere (2018-9-20)
comment
Keywords: Help retractor, Circe, only Kings
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Frank Müller, 2009-10-7 more...
17 - P0002288
Ernest Clement Mortimer
Andrey Frolkin

Die Schwalbe 71 10/1981
P0002288
(15+13) C+
BP in 4,0
1. Sf3 e5 2. Sxe5 Se7 3. Sxd7 Sec6 4. Sxb8 Sxb8
play all play one stop play next play all
Version A. Frolkin. Die Originalfassung war mit sBd5 und e7.
Another version is reflected left-to-right.
YM: Possible symmetrical game:

BP in 4,0 (15+13) C+

1. Sc3 d5 2. Sxd5 Sd7 3. Sxe7 Sdf6 4. Sxg8 Sxg8

and even improved versions:

BP in 4,5 (13+15) C+

1.e3! (tempo) Sf6 2.e4 Sxe4 3.Se2 Sxd2 4.Sc3 Sxb1 5.Sxb1.

BP in 4,5 (13+15) C+

1.d3! (tempo) Sc6 2.d4 Sxd4 3.Sd2 Sxe2 4.Sf3 Sxg1 5.Sxg1. (2016-9-27)
A.Buchanan: These days, the style seems to be more common to mark as "BP in exactly 4.5", if a shorter proof game exists. (2018-10-1)
Olaf Jenkner: Isn't it anticipated by Schweig (P0002287) ? (2018-10-1)
A.Buchanan: Olaf: there is much to unwind here.
Firstly, this is Mortimer v Frolkin. There is no way to indicate the dependency in the Author fields. There is a field called "After" but there is no known way to search that field (see PDB FAQ examples). But putting this information in the Solution Text field is no answer, as this field too is unsearchable! I suggest that this information can best be placed in the Comment field (not UserComment).
Secondly, we don't know when Mortimer published his original: but his 12 publication dates here are between 1917 & 1935, while Schweig's composition is 1938.
It would be good to confirm the original publication date, but Schweig may have been anticipated. (2018-10-1)
comment
Keywords: Unique Proof Game, Homebase (2), Impostor (s)
Genre: Retro
Reprints: 100 Shortest Proof Games 11/1991
(5) diagrammes 103 10-12/1992
6 Introduction to Proof Games 03/2010
06b The Puzzling Side of Chess 8 18/08/2012
72 The Puzzling Side of Chess 141 16/12/2018
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-1 more...
18 - P0002473
Waleri A. Liskowez
(5) Die Schwalbe 69 06/1981
P0002473
(7+3)
#2 BG

Quick solution:
Partial solutions in a specific order.
I 1. dxe6ep a try by the BG-logic (beruehrt-gefuehrt) with no
justification 1. ... 0-0-0 2. Bb7#. If rejected, the key must be returned back:
II 1. Nxe5 capturing the touched wP. (1. ... 0-0-0??)
NOT:
1. Nc5/Nxe5? 0-0-0!
II 1. Nc5/Ke6?? illegal by the rule of touching chessmen.
(II 1. Kxe5?)
Castling implies ep.

Detailed solution:
We don't know if Black castling or White e.p. capture are legal. We do know that if castling is legal, then so is e.p. because Black's last move was certainly e7-e5.
If e.p. is legal, then we have a solution, whether castling is legal or not.
1. dxe6ep! [2. Rf8#]
1. ... O-O-O 2. Bb7#
And we have a number of tries stopped only if castling is legal:
Try: 1. Ke6?/Sc5?/Sxe5? [2. Rf8#]
But 1. ... O-O-O!
So how to tie these facts together? We are going to try out moves, and this will force the opponent to specify the pre-history of the game in his favour. Each phase we will label with Roman numbers.
Suppose we try I) 1. dxe6ep. UNDER SO-CALLED "TOUCH-MOVE" BLACK CAN DEFEND BY DEFINING THE HISTORY OF THE GAME SUCH THAT A THREAT IS ILLEGAL, AND MUST BE RETRACTED. This way of resolving uncertainty is the key to the modern Touch Move convention. The confusing part is that it actually has relatively little to do with Touch Move! This is the secret that you weren't being told!
Now we have to retract 1. dxe6ep. What have we gained? Well we know that ep is illegal, and therefore castling doesn't work either. There is a price to be paid: that we must follow the touch move rule. So although it appears that all of II) 1. Ke6/Sc5/Sxe5 will work, in fact only the last, II) 1. Sxe5, is valid, by the touch-move rule. wPd5 can't move except for the e.p. which we know now isn't going to happen, but we must still capture bPe5 if possible.
Suppose that instead we had begun by trying one of I) 1. Ke6/Sc5/Sxe5. Black can defend by saying that castling is legal, and indeed just plays it I) 1. ... 0-0-0! There is no retraction possible, because none of the White moves were illegal.
A.Buchanan: See my solution. The penny has dropped and I will adjust the definition of Touch Move so that others aren't struggling in ignorance.
I still have no idea how "PR" ("PRA?") & "PF" fit into this problem: they don't seem to be necessary if BG is defined properly. Please can Valery confirm my solution, and explain precisely how "PR" & "PF" contribute. (2018-10-7)
VL: Well, Andrew, your description of the solution is correct.
The mark "PR&PF" (or so) should be removed from this and other problems stipulated BG. It was (and remains) significant only in the general context for the explanation of the genuine nature and place of this hybrid genre in the framework of the family of controversial RA-genres (that is, ones connected with interacting move legalities). In view of this, I recommend to preserve PF as a keyword and even add PRA as such... (2018-10-7)
A.Buchanan: Valery: I have adjusted the stipulations as requested. I have not yet touched the keywords.
If I had a catalogue of pets, and classified a loyal dog called Fido, I would assigned him the keyword "dog". Although there are interesting genetic, evolutionary & cultural relationships between dogs and cats, I would not assign him the keyword "cat", because that would obscure more than it would help, particular to an audience of new and prospective pet owners. The relationship between dogs and cats is much better discussed, once, in the keyword definitions.
I would also make sure that before launching in to such advanced comparative discussions there was a clear, self-contained definition of the concept of "dog". This we still do not have in this database, either for dog or BG. In particular:
- What constrains or motivates the referee/opponent to accept or reject moves?
- Do the regular conventions (accept castling, reject en passant) play any role?
- In an adversarial game (direct or self play), can I reject or accept my opponent's move?
- As the player, do I keep playing moves until I have exhausted all possible partial solutions?
- Is there anything else important to say about BG itself?
Thanks so much! (2018-10-9)
comment
Keywords: Touch Move, En passant, Castling (sg), Post Factum (PF)
Genre: Retro
Reprints: Die Schwalbe 99 06/1986
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-9 more...
19 - P0002628
Raymond Smullyan
The Chess Mysteries of Sherlock Holmes 1979
P0002628
(3+2)
#1
Aprilscherz!
1. b8=sS#
play all play one stop play next play all
vgl. P1349637
Mario Richter: Could be, inspired by P1349637, presented as twin: a) diagram, b) +sSb8 (2018-5-2)
Ladislav Packa: Mario: Position b) would be enough. H#1*: 1...bxa8=R#, 1.Sd7 b8=S# (2018-5-2)
comment
Keywords: Joke, Joke promotion (s)
Genre: Fairies
Reprints: Schach mit Sherlock Holmes 1982
Input: Gerd Wilts, 1995-6-3
Last update: Mario Richter, 2018-5-2 more...
20 - P0002691
Per Olin
Suomen Tehtäväniekat 15/01/1992
P0002691
(1+1)
Ergänze 4 Bauern zu einem IC!
Wieviele Lösungen?

Typ 1: Dreieck wBa2-a4-c2: 3*12+5=41,
Typ 2: Dreieck wBd2-e2-e3-f2: 10-3=7,
Typ 3: Dreieck wBc4b3c3d3: 2*8=16.
Summe=41+7+16=64!
Per Olin: As published, the Black king was on d5. The problem was
dedicated to the Chess Day of Finnish Chess Federation 15 January 1992.

The solution as given by the composer:

There are three types of solutions.

Type 1) on the six squares triangle a2, a4 and c2 four white pawns can be placed in 15 different ways. Three out of these do not comply with the stipulation, e.g. pawns a2, a3, b2 and c2 is still illegal after removal of c2. Fulfilling the stipulation are 15 - 3 = 12 positions. Mirroring the positions is possible, as well as a similar arrangement of black pawns in NW corner. In the NE corner the white king decreases the amount of solutions to 5. Total of Type 1 is 3 x 12 + 5 = 41.

Type 2) Positions type white pawns d2, e2, e3 and f2 are, including Black's corresponding ones and excluding those included in type 1, altogether 7.

Type 3) A checking white pawn on c4 or e4, whose all starting squares are occupied. The occupying pawns can be 8 combinations of different colors. This gives 2 x 8 positions.

The total of Types 1 - 3 is 41 + 7 + 16 = 64. (2018-8-29)
comment
Keywords: Illegal cluster, only Kings
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-8-29 more...
21 - P0003447
Gerd Rinder
(O) Die Schwalbe 16, p. 393, 10/1972
P0003447
(14+13) C+
h#2 (pRA)
1. Txg3 Sxg3+ 2. Kf3 0-0#
1. cxd3ep Lxg1 2. e2 Sd2#
1. gxf3ep Lxg1 2. Dd3 Txh4#
play all play one stop play next play all
VL: This problem was first published in the article entitled "Konstruktive Kritik am Kodex von Piran" (by W.Keym; H.16). The author is a strong opponent of the retro-synthese (including AP a la Keeble--Petrovic = "Typ Petrovic"). Here we meet a retro-situation resembling that of AP, which, however, is interpreted and resolved purely in the framework of pRA. Namely, the problem contains three retro-variants: (a) 0-0; (b) 0-0-0 & cxd3 ep; (c) 0-0-0 & gxf3 ep. Each of them results in a unique (partial) solution (see above), so that the problem is sound. The absence of 0-0-0 in the latter two solutions is a witty feature that emphasizes a fundamental distinction from AP (where only actual castling can legalize the ep-key). Judging from the article "PRA oder Kodex" by B.Pavlovic in the "Problem", 152-6, where this problem is reproduced, it was initially stipulated "h#2, PRA-Typ Rinder" (this is presently known under the name "Typ Keym"). It is reproduced also in the book "Eigenartige Schachprobleme" by W.Keym, 2010, Pr.385. (2012-8-26)
Sally: Hier schlugen die w. Bauern dreimal, unter anderem eine UW-Figur von "h1 oder "a1",(entweder ist 000 oder 00 zulässig).
Der letzte Zug war 1. K-e1, oder T-a1, oder "d2-d4". oder
"f2-f4". Falls 000 zulässig ist, dann ist 00 unzulässig und jeweils einer der E.-P.-Schläge erlaubt, Also löst entweder:
1. Bg4xf3 E.p.! - Lxg1, 2. Dd3 - Txh4#. oder :
1. Bc4xd3 E.p.! - Lxg1, 2. Be2 - Sd2#.
Beide Male wird das Zugrecht 000 anerkannt, aber nicht aufgeführt! Falls 00 zulässig ist, dann ist 000 unzulässig;
in diesem Fall war zuletzt der Zug "T-a1" möglich, daher kein E.p.-Schlag erlaubt. Also löst :
1. Txg3! - Sxg3+, 2. Kf3 - 00 #. (2018-6-15)
Henrik Juel: C+ by Popeye 4.61, after analysis (2018-6-15)
more ...
comment
Keywords: Castling, En passant as key, a posteriori (AP)
Genre: h#, Retro
Computer test: Popeye 4.61
Reprints: (II) Problem 152-156 04/1973
XI Caissas Schloßbewohner 1 1983
(13) Die Schwalbe 241 02/2010
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-6-16 more...
22 - P0003661
Hans Frieder Haefele
11285 Schweizerische Schachzeitung 09/1977
P0003661
(3+6) C+
h#2
b) sBd3 nach a2
c) ferner sBg4 nach d3
a) 1. Ta2 Txa2 2. Th1 Tg2#
b) 1. Te2+ Kd1 2. g2 Kxe2#
c) 1. Tf2 0-0-0 2. Tf1 Txf1#
play all play one stop play next play all
Sally: Weshalb aber geht dieletzte Variante auch nicht in den Diagrammen a) und b)?. Weil Weiß bei blockierender Stellung des Lh3 (sB4) zuletzt eindeutig oder mit dem König gezogen haben muss, was die Rochade verbieten würde. (2018-6-24)
Henrik Juel: If you dislike 'ferner', part c) could be written as 'sBg4 nach a2'
Analysis: last move was made by Ke1 or Ta1 in diagram position and in part b), so castling is possible in part c) only
C+ by Popeye 4.61 (2018-6-24)
comment
Keywords: Cant Castler, Castling (wg)
Genre: h#, Retro
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-6-25 more...
23 - P0003736
Giuseppe Brogi
1249 Sinfonie Scacchistiche 07-09/1972
P0003736
(12+12) cooked
h#2
b) wSa5
a) 1. f5 Le5 2. 0-0 Th8#
b) 1. Kd8 0-0-0 2. Te8 Lf8#
play all play one stop play next play all
Try to deduce the diagram error, as we do have the intended solutions!
a) wRh7 is original, but cannot have escaped from cage by white cross-capture as there are too many captures needed. On the other hand, Black only has to make 4 captures so the cross-capture is ok.
b) changing the colour of Sa5 shifts the capture balance: now White can cross-capture but not Black, so White but not Black can castle.
Thus the retro-logic works with the diagram as it is, but the forward logic does not. How can we repair the diagram?
A.Buchanan: Something odd going on here. There are numerous h#2 in both a&b. PRA not normally found in a problem with single solution for each twin. White has 8 pawns so trivially wRh7 must be original. (2018-10-13)
A.Buchanan: There are three similar problems by Brogi which are all twinned RS rather than PRA, but don't have diagram error. P0003743, P0003746 & P0003747. (2018-10-13)
comment
Keywords: Castling, Retro Strategy (RS)
Genre: h#, Retro
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-13 more...
24 - P0004299
Luis Alberto Garaza
(30) Problem 73-78 06/1961
1.-2. Preis e.a.
P0004299
(12+11)
#3
Längstzüger
31. TT
Henrik Juel: 1.0-0 Ta4 2.Ta1 Ta8 3.Txa8#
C+ by Popeye 4.61
But the real content is probably a proofgame showing how the position could be reached with the maximummer condition in effect throughout (2018-9-23)
Henrik Juel: The magazine issue can be downloaded as
http://problem64.beda.cz/silo/problem_73-78_1961.pdf
On p.39 in solution 30 a proof game in 171.0 moves is given
but I have not checked it (yet) (2018-9-24)
Henrik Juel: The given proof game seems OK, albeit with several typos
The main critical positions are:
after 74.Da1
k6s/1s1ppppp/1p1p2l1/pS1LPt1t/1P3L1P/1PPT4/3P1PP1/D3K2T (15+14)
Here the black knights are controlled as are the other black officers, allowing black pawn captures and the surprising 79... a1=T
after 127.Ld5
1Dsk3s/3ppppp/1p4l1/3LTt1t/1P3ptP/1PP2PS1/3P2P1/4K2T (13+14)
Now the black king can move to g8, after he has been helping out on the board, and we see the need for three black rooks as [Th1] is unavailable
after 151.Dc8
2D1s1k1/3ppppp/1p5s/3LTtt1/1P3PtP/1PP3p1/3P2P1/4K2T (12+13)
Now we can get the black king all the way to h8, and the rest is rather easy... (2018-9-24)
hans: 1. a3 Nc6 2. e3 Ne5 3. Nh3 Ng6 4. Nc3 Nh4 5. Nb5 Ng6 6. Nd6+ cxd6 7. Nf4 Qa5 8. Ne6 Qh5 9. Nc7+ Kd8 10. Na6 Qa5 11. Nb4 Qh5 12. Nc6+ Kc7 13. Qg4 Qa5 14. Qc4 Qh5 15. Ne5+ Kb6 16. Nf3 Qa5 17. Qb3+ Qb4 18. axb4 Ne5 19. Qa3 Nf6
20. Qa6+ Kc7 21. Nh4 Nc6 22. Ng6 Nb8 23. Be2 Ng4 24. Bf3 Ne5 25. Qa5+ b6 26. Qb5 Ba6 27. Bb7 Nc4 28. Nxf8 Ne5 29. h4 Nc4 30. Ng6 Rc8 31. Nf4 Rh8 32. Qf5 Rc8 33. Nd5+ Kd8 34. Nf6 Rc5 35. Qf4 Rh5 36. Qf5 Nc6 37. b3 Nd4 38. Bb2
Ne2 39. Be5 Na5 40. Bf4 Bd3 41. Qe5 Bg6 42. Qf5 Nc4 43. c3 Nd4 44. Ng4 Ne6 45. Ne5 Ng5 46. Nc6+ Kc7 47. Nd4 Rh8 48. Nb5+ Kb8 49. Nc7 Rc8 50. Ne8 Rc5 51. Qe4 Rf5 52. Qb1 Ra5 53. Qc1 Bb1 54. Qc2 Rf5 55. Bd5 Ne5 56. Qb2 Ng6 57. Qc2 Nh8 58. Bc4 Ra5 59. Qb2 Bg6 60. Bd3 Rf5 61. e4 Ra5 62. Nc7 Rf5 63. e5 Ne6 64. Na6+ Ka8 65. Bc4 Nd8 66. Ra5 Ne6 67. Rd5 Nd8 68. Rd3 Ne6 69. Nb8 Nd8 70. Nc6 Ne6 71. Nd4 Nd8 72. Nb5 Nb7 73. Bd5 a5 74. Qa1 dxe5 75. Re3 exf4 76. Re5 a4 77. Qa2 a3 78. Qb1 a2 79. Qd1 a1=R 80. Nc7+ Kb8 81. Nb5 Ra8 82. Nd4 Ra1 83. Nc6+ Kc7 84. Nd4 Ra8 85. Bc4 Ra1 86. Nc2 Ra8 87. Ba6 Rg8 88. Ne3 Ra8 89. Nd5+ Kd6 90. Qe2 Rg8 91. Qc4 Ra8 92. Re4 Rg8 93. Rd4 Ra8 94. Qc7+ Ke6 95. Qc4 Rg8 96. Qd3 Ra8 97. Nf6 Rg8 98. Ne8 Ra5 99. Nf6 Rag5
100. Qg3 Bb1 101. Rd3 Ra8 102. Qh3+ Rg4 103. Nd5 Rg8 104. Rd4 Bg6 105. Nc7+ Kf5 106. Ne8 Nc5 107. Qf3 Na4 108. Nc7 Ra8 109. Bc8 Ra5 110. Nb5 Ra8 111. Qd1 Ra5 112. Qa1 Ra8 113. Qa3 Ra5 114. Ba6 Nc5 115. f3 Ne6 116. Qa4 Ng5 117. Nd6+ Ke6 118. Ne4 Rf5 119. Rd5 Nh3 120. Ng3 Nf2 121. Re5+ Kd6 122. Qa5 Ne4 123. Qd5+ Kc7 124. Qb7+ Kd8 125. Bc4 Nd6 126. Qb8+ Nc8 127. Bd5 fxg3 128. f4 Ke8 129. Qa8 Kf8 130. Qb8 Kg8 131. Qd6 Na7 132. Qxg6 Nb5 133. Qc6 Nd6 134. Qa4 Ne8 135. Bb7 Nf6 136. Ba6 Ng6 137. Rd5 Nf8 138. Rd4 Ra5 139. Rc4 Rhb5 140. Rc5 Nh5 141. Qa3 Ne6 142. Qa4 Nd4 143. Qa3 Nf5 144. Qa4 Nh6 145. Rc4 Rbg5 146. Re4 Raf5 147. Re5 Nf6 148. Bc4 Ne8 149. Bd5 Nf6 150. Qa8+ Ne8 151. Qc8 Kh8 152. Qc6 Nc7 153. Qe6 Nb5 154. Qxf5 Na3 155. Qxg4 Nf5 156. Bb7 Nd6 157. Qe2 Ne4 158. Re6 Ra5 159. b5 Ra8 160. Bc8 Ra4 161. Ba6 Rd4 162. Qc4 Nd6 163. Re2 Ne4 164. Qb4 Nc4 165. Bb7 Ng5 166. Be4 Ne6 167. Bd3 Ng5 168. Qd6 Ne4 169. Qe6 Ng5 170. Qh3 Ne4 171. Qh2 Ne5 position (2018-9-24)
Henrik Juel: Thanks for supplying the intended proof game, Hans
It is remarkable what is possible with the max condition, but with the advent of unique proof games it has no longer much attraction, at least to me (2018-9-24)
comment
Keywords: Maximummer, Castling (wk)
Genre: Retro
Input: Gerd Wilts, 1995-6-3
25 - P0004300
Luis Alberto Garaza
(22) Problem 73-78 06/1961
3. Preis
P0004300
(8+10)
#3
Längstzüger
31. TT
Henrik Juel: 1.0-0 Sc6/Se6/Sf7 2.Tf8+/Txe6/Txf7
C+ by Popeye 4.61
But, like the previous problem, how could the position arise? (2018-9-23)
comment
Keywords: Maximummer, Castling (wk)
Genre: Retro
Input: Gerd Wilts, 1995-6-3
26 - P0004368
Alexander Kislyak
561 Europe Echecs 403 07-08/1992
P0004368
(16+16)
BP in 25,0
1. g4 g5 2. Lg2 Lg7 3. Ld5 Ld4 4. Lc4 Lc5 5. d4 d5 6. Ld2 Ld7 7. La5 La4 8. Dd2 Dd7 9. Db4 Db5 10. Sc3 Sc6 11. 0-0-0 0-0-0 12. Td3 Td6 13. Tf3 Tf6 14. Tf4 Tf5 15. Sf3 Sf6 16. Td1 Td8 17. Td3 Td6 18. Sd1 Sd8 19. Tb3 Tb6 20. Dc3 Dc6 21. Tb4 Tb5 22. b3 b6 23. Kb2 Kb7 24. Ka3 Ka6 25. Sb2 Sb7
play all play one stop play next play all
Sebastian Natschke: Es gibt eine Nebenlösung mit 8. Dd3 Dd6 9. Da3 Da6 und dann 20. Tb4 Tb5 21. Dc3 Dc6 (2018-9-27)
comment
Keywords: Unique Proof Game, Castling, Symmetrical position, Capture-free
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2014-5-22 more...
27 - P0004893
Waleri A. Liskowez
Bulletin Central Chess Club USSR 1970
3.-4. Preis e.a.
P0004893
(12+13)
#4 BG
Partial solutions in a specific order.

1. e6? 0-0-0! I 1. exd6ep+ a try by the the BG-logic (beruehrt-gefuehrt) with no justification. If rejected, the key must be returned back:
II 1. e6 (1. ... 0-0-0??) by the touched P only! 1. ... Bxb5/gxf6 2. exf7++ (2. ... Kd7 3. Qd7+/bxc6+)
The second key is compatible with the rule of touching chessmen.
The last move? h7xg6 locks wRh8. e6xf5?? illegal (all 3 captures
could not be on light squares). Thus, castling implies ep
play all play one stop play next play all
VL: It seems to be the first BG-problem with
a legal position (cf. P0006091). (2005-7-21)
A.Buchanan: There are broadly two different types of BG problem. The older ones (from 18xx) are retractors, and in some the diagram position is legal (e.g. P1354447 1885). More modern BG compositions have forward stipulations after conventional retro-analysis, and would normally be legal positions. (2018-10-7)
comment
Keywords: Touch Move, Partial Retro Analysis (PRA), Castling
Genre: Retro
Reprints: (1) Die Schwalbe 69 06/1981
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-9 more...
28 - P0004967
Lothar Finzer
(X) Die Schwalbe 16 10/1972
P0004967
(14+10)
#2
R: 1. 0-0-0, dann 1. Kd2 (BG) ... 2. Sc1#
play all play one stop play next play all
1. Kb1? ... 2. Lb2# - aber S hat keinen letzten Zug. Wenn W zuletzt gezogen hat, dann stellt nur R: 0-0-0 die schwarze Retrobeweglichkeit wieder her.
ABER: Wegen des sUW-Lf1 war die w0-0-0 illegal. W nimmt die illegale Rochade zurück und macht stattdessen wegen Berührt-Geführt den K-Zug 1. Kd2, gefolgt von 2. Sc1#
more ...
comment
Keywords: Joke, Touch Move, Castling, Illegal position, Retract illegal move, Promoted material on the board (L)
Genre: Retro, 2#
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2018-10-7 more...
29 - P0005363
Hans Klüver
stern 02/04/1966
P0005363
(16+16)
Erfinden Sie eine möglichst kurze Schachpartie, in der durch den Umwandlungszug "Bauer wird Springer" das Matt erfolgt!
1. d4 e5 2. Kd2 exd4 3. b3 d3 4. Kc3 dxe2 5. Kb2 exd1=S#
play all play one stop play next play all
Cook: Alternative Zugfolgen
1. d4 e5 2. b3 exd4 3. Kd2 d3 4. Kc3 dxe2 5. Kb2 exd1=S#
1. d3 e5 2. Kd2 e4 3. Kc3 exd3 4. b3 dxe2 5. Kb2 exd1=S#
1. d3 e5 2. Kd2 e4 3. b3 exd3 4. Kc3 dxe2 5. Kb2 exd1=S#
1. d3 e5 2. b3 e4 3. Kd2 exd3 4. Kc3 dxe2 5. Kb2 exd1=S#
1. b3 e5 2. d4 exd4 3. Kd2 d3 4. Kc3 dxe2 5. Kb2 exd1=S#
1. b3 e5 2. d3 e4 3. Kd2 exd3 4. Kc3 dxe2 5. Kb2 exd1=S#
more ...
comment
Keywords: Non-Unique Proof Game, Construction task, Umwandlung im Mattzug, under-promotion (s)
Genre: Retro
Reprints: Die Stern-Schachprobleme 10/1991
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-6-2 more...
30 - P0005364
Hans Klüver
stern 04/05/1967
P0005364
(16+16)
Erfinden Sie eine möglichst kurze Schachpartie, in welcher der Mattzug durch den En-passant-Schlag eines Bauern erfolgt!
1) 1. e4,e3 e5 2. g4 Sc6 3. g5 d6 4. Dh5 Kd7 5. Lh3+ f5 6. gxf6ep#
2) 1. e4 e6 2. e5 Sh6 3. f4,h4 g5 4. fxg5,hxg5 Ke7 5. Dh5 f5 6. gxf6ep#
3) 1. e4 e6 2. e5 Sh6 3. Sc3 g5 4. Se4 Ke7 5. Dh5 f5 6. exf6ep#
4) 1. b3,b4 h6,h5 2. Lb2 f5 3. e4 Kf7 4. exf5 De8 5. Dg4 g5 6. fxg6ep#
5) 1. e4 h6,h5 2. Ld3 f5 3. De2 Kf7 4. exf5 De8,e5 5. De5 g5 6. fxg6ep#
6) 1. d4 d6 2. Dd3 Kd7 3. Dg6 f5 4. d5 Sc6 5. Lg5 e5 6. dxe6ep#
play all play one stop play next play all
Sally: Es gibt 3 Schlüsselzüge mit 1. Be4!
Hier können natürlich verschiedene Züge in allen Beispielen umgestellt werden. (2018-6-2)
comment
Keywords: Non-Unique Proof Game, En passant, Construction task
Genre: Retro
Reprints: Die Stern-Schachprobleme 10/1991
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2014-3-26 more...
31 - P0005976
Sergey I. Tkachenko
8821 Die Schwalbe 152 04/1995
P0005976
(11+2) C+
#1
1. ... Lxa8 e8=S#
1. ... Lxc8 Kc4#
1. ... Lxc6 Da3#
1. ... Lxa6 Dh6#
play all play one stop play next play all
Schwarz ist am Zug!
Sally: 1. Da3#?/ 1. Dh6#?/ 1. Kc4#?/ 1. Be8S#?
Aber natürlichist Schwarz am Zug
Die vier Mattzüge werden differenziert, also das Fleck-Thema im Retro-Gewand. Erfrischende Darstellung mit schwarzen Läufer-Stern. (2018-6-6)
Henrik Juel: Last move was obviously not made by Lb7, and Kd6 could not have moved from d7 (illegal check from Lc8) or from e6 (illegal double check), so White made last move, and it is Black to move
C+ by Popeye 4.61 (with 'ford #2 opt var nac') (2018-6-6)
comment
Keywords: Whose move?, Läuferstern, Umwandlung im Mattzug, under-promotion (S)
Genre: Retro, n#
Computer test: Popeye 4.61
Input: Gerd Wilts, 1995-7-1
Last update: Alfred Pfeiffer, 2018-6-6 more...
32 - P0006091
Jean-Michel Trillon
Themes-64 1969
P0006091
(7+3)
Der letzte Zug muß zurückgenommen werden. Wer gewinnt?
b) wBc5 nach e5
a) R: 1. exd6ep, dann 1. bxa4,+-
b) R: 1. cxd6ep, dann 1. c6 Lxc6#
play all play one stop play next play all
In a) hat der zurückgenommene wBe5 keinen legalen Zug, daher kann Weiß beliebig ziehen und mit bxa4 gewinnen.
In b) kann der zurückgenommene wBc5 ziehen und muß dies auch tun (BG-Regel).
AV: b) Bc5 nach e5 (nicht e4).
Les Blancs ont touché le pion c5 et doivent le jouer ! (2005-6-23)
VL: Both kings in check. It seems to be the first
published BG-problem (cf. P0004893). (2005-7-21)
A.Buchanan: Not clear when the earliest BG problem was published. P1340386 might be the earliest at 1873, but P1354447 could have been earlier, and at the latest 1885. (2018-10-7)
comment
Keywords: Touch Move, Joke, En passant in the retro play, Illegal position, Retract illegal move
Genre: Retro, Studies
Reprints: (4) diagrammes 97 04-06/1991
Chess Life Online 20/05/2011
Input: Gerd Wilts, 1995-7-16
Last update: A.Buchanan, 2018-10-6 more...
33 - P0006474
Mario Velucchi
4103 Problemkiste 105, p. 248, 06/1996
A. Frolkin und A. Kisljak gewidmet
P0006474
(16+16) C+
BP in 11,0
1. d4 e6 2. Dd2 De7 3. Dh6 Da3 4. Lg5 Ld6 5. Sd2 Se7 6. 0-0-0 0-0 7. Kb1 Td8 8. b4 Kf8 9. b5 Ke8 10. b6 g6 11. Dg7 Db2+
play all play one stop play next play all
A.Buchanan: What's this about? (2018-10-13)
comment
Keywords: Unique Proof Game, Castling, Capture-free
Genre: Retro
Input: Gerd Wilts, 1996-6-16
Last update: A.Buchanan, 2014-5-23 more...
34 - P0006550
Juraj Lörinc
F1489R The Problemist 09/1994
P0006550
(16+14) C+
Patrol Chess
a) BP in 13,5 or 14,0?
b) #1 (who)?
a) 1. d3 e5 2. Kd2 Le7 3. Ke3 Lh4 4. Kf4 Sf6 5. Kg5 g6 6. Kh6 0-0 7. Lg5 Te8 8. e3 Te7 9. Df3 Se8 10. Kxh7 d6 11. Kh8 Kh7 12. Dxf7 Lf5 13. f4 Te6 14. De7+ Sg7

8. ... Te7 cannot be escaped, so that no proof game ends with White's 14th

b) White mates with 1. Dxg7# (not 1. ... Dg8)
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Castling, Patrol Chess
Genre: Retro, Fairies
Computer test: Jacobi
Input: Gerd Wilts, 1996-6-16
Last update: Alfred Pfeiffer, 2018-8-16 more...
35 - P0007490
Andrey Frolkin
Alexander V. Shvichenko

6856 feenschach 116 10/1995
P0007490
(12+16) cooked
BP in 8,5
Andernachschach
1. d4 e5 2. d5 Dg5 3. Dd4 Kd8 4. Dxe5[=sD] De8 5. d6 Le7 6. dxe7[=sB] d6 7. g3 Lh3 8. Lxh3[=sL] Lc8 9. Lxg5[=sL]
play all play one stop play next play all
Cook: NL
1. d4 e6 2. g3 De7 3. Lh3 Kd8 4. Lxe6=sL De8 5. d5 Le7 6. d6 Ld5 7. Dxd5=sD Dg5 8. dxe7=sB d6 9. Lxg5=sL (paul)
more ...
comment
Keywords: Andernach Chess, Unique Proof Game
Genre: Retro, Fairies
Input: Gerd Wilts, 1996-8-31
Last update: Alfred Pfeiffer, 2018-8-10 more...
36 - P0008416
Harry Goldsteen
Probleemblad 1 01-02/1989
P0008416
(10+15)
#1 (wer?)
Beispielauflösung (mri):
R: 1. ... Sh6-g8 2. f6xLe7 Kg8-h8 3. f5-f6 Kf8-g8 4. f4-f5 Ke8-f8 5. f3-f4 Lf8-e7 6. f2-f3 e7-e6 7. Se6-d8 Kd7-e8 8. Sf4-e6 Ke6-d7 9. Sh3-f4 Kf5-e6 10. Sf4-h3 Kg5-f5 11. Sd5-f4 Kh4-g5 12. Sf4-d5 Kh3-h4 13. Sh5-f4 Kg2-h3 14. Sg3-h5 Kf1-g2 15. Sh5-g3 Ke1-f1 16. Sf4-h5 Kd1-e1 17. Sh3-f4 De1-d2 18. Sf4-h3 Td2-c2 19. Sh3-f4 Sc2-a1 20. Ka1-b1 Sd4-c2 21. Lb1-a2 La2-b3 22. Sg1-h3 Tb3-c3 23. Sh3-g1 Tb6-b3 24. Sf4-h3 Dh1-e1 25. Sh3-f4 Dd5-h1 26. Sg1-h3 Tc2-d2 27. Sh3-g1 Tc3-c2 28. Sg1-h3 Tb3-c3 29. Sf3-g1 Tb5-b3 30. c3-c4 Dd8-d5 31. Se5-f3 Le6-a2 32. La2-b1 Kc2-d1 33. Ld5-a2 Kb3-c2 34. Lg2-d5 Kb4-b3 35. c2-c3 Kc5-b4 36. Kb1-a1 Kd6-c5 37. Kc1-b1 Kd7-d6 38. Sc4-e5 Ke8-d7 39. Sa3-c4 Lc8-e6 40. Lf1-g2 d7xDc6 41. Dh1-c6 Th5-b5 42. Kd2-c1 Sf5-h6 43. Ke1-d2 Th8-h5 44. Sb1-a3 Tg8-h8 45. Dh8-h1 g5-g4 46. h7-h8=D Th8-g8 47. h6-h7 Ta6-b6 48. h5-h6 h6xLg5 49. Lf6-g5 Sc6-d4 50. Lc3-f6 Sb8-c6 51. Ld2-c3 Ta7-a6 52. Lc1-d2 Ta8-a7 53. d2-d3 d3xSe2 54. Sg1-e2 c4xTd3 55. Ta3-d3 b5xTc4 56. Th4-c4 a6xDb5 57. De2-b5 a7-a6 58. Dd1-e2 h7-h6 59. Th1-h4 Sh6-f5 60. g5-g6 Sg8-h6 61. Ta1-a3 Sh6-g8 62. h4-h5 Sg8-h6 63. g4-g5 Sh6-g8 64. e2-e3 Sg8-h6 65. h2-h4 Sh6-g8 66. g2-g4 Sg8-h6 67. a2-a4
play all play one stop play next play all
Henrik Juel: 1.Sxf7#, not 1.. Rc1? -1.. Sh6 -2.f6:B Kg8 -3.f5 Kf8 -4.f4 Ke8 -5.f3 Bf8 -6.f2 e7 -7.Se6, bK retracts to d1, bQ to e1, etc. (2003-8-26)
Yoav Ben-Zvi: White's only capture was WPf6xBe7. All 6 missing White pieces were captured by BPs. [WPh2] accounts for one of the BP captures and did not itself capture so it must have promoted on h8 after [BPh7] captured on g file to clear the way. The promoted White piece could either replace a knight (moving to d8) or else it is itself captured by a BP.
When [BPa7] completed its fourth capture by BPd3xe2, WP stood waiting on d2 so [WBc1] was locked at c1. After its release [WBc1] is captured on g5 (only BP capture left on a dark square) followed by promotion of [WPh2]. This means [BPa7] could not have captured the promoted piece or [WBc1] so it did capture [WRa1] which escaped via a3 so [WPa2] must already have advanced to a4. Prior to BPh6xBg5 [WPg2] must advance to g6. This implies that the subsequent promotion on h8 was not to knight as it would not be able to exit h8. Since the promotion on h8 occurs after [BPa7] and [BPh7] have completed their captures, the promoted piece is captured by BPd7xc6. Prior to the capture by [BPd7], [BBc8] was locked at c8 and [BPe7] had not advanced to e6 (where it would obstruct the subsequent exit of [BBc8]) so [BBf8] is also locked at home and therefore, when the promoted piece is captured on c6, BQ and BK stand locked in the Central cage.
Looking backward: The above shows that WPa4 and WPg6 cannot retreat before the uncapture BPh6xBg5 which occurs after the unpromotion on h8 and retreat of the unpromoted WP to h5. Immediate Retro-stalemate can be prevented by retracting -1.WPf6xBe7? Bf8-e7 -2.Pf5-f6 Pe7-e6 -3.Ne6-d8 and a knight can provide the shield on d1 extracting BQ via e1 to unravel the South-East cage but with BB locked on f8 and WP standing on g6 (unable to retreat to g5 until the retreat of WP unpromoted from piece uncaptured on c6 allows BPh6xBg5) the BK cannot exit the North-East cage to retract to e8 allowing the uncapture on c6. Therefore the retraction sequence presented by Henrik above is the only way to release WNd8 in time to prevent retro-stalemate when WPe7 retracts back to f2. Standing on f2 the WP prevents a retro-shield by the knights on d1 so BK comes to the rescue.
A lovely "Solver's problem" (see comment by Tom Volet to P1347268). The #1 stipulation is a throw-back to earlier times. A modern replacement could be "Last 12 single moves". (2018-5-4)
comment
Keywords: Whose move?
Genre: Retro
Input: Gerd Wilts, 1996-9-17
Last update: Mario Richter, 2018-5-5 more...
37 - P0008445
Mario Velucchi
3570 diagrammes 118 07/1996
Ph. Schnoebelen gewidmet
P0008445
(5+9)
h#3
1. bxa4 axb3 2. Kxb3 Kd2 3. Kb4 Tb1#
play all play one stop play next play all
A.Buchanan: I like best when all pieces are essential to the chess as well as the letter. Here wfP & beP don't seem to add much. (2018-10-13)
more ...
comment
Keywords: Cant Castler, Castling, Letter problem
Genre: Retro, h#
Input: Gerd Wilts, 1996-10-3
Last update: A.Buchanan, 2018-10-13 more...
38 - P0008560
Unto Heinonen
Springaren 1996
P0008560
(16+6)
ser-BP in 53
1. f4 2. f5 3. f6 4. fxg7 5. gxh8=T 6. Txh7 7. Th4 8. Tb4 9. h4 10. h5 11. h6 12. h7 13. hxg8=L 14. Lh7 15. Le4 16. Lc6 17. e4 18. Ke2 19. Kd3 20. Kc4 21. Kb5 22. Lc4 23. Se2 24. Dg1 25. Dxa7 26. Dxa8 27. Da3 28. Dc3 29. a4 30. a5 31. a6 32. a7 33. a8=S 34. Sb6 35. Sxc8 36. Sxe7 37. Sf5 38. Sd4 39. Sb3 40. d4 41. Lg5 42. Lxd8 43. Lxc7 44. Kb6 45. Ka7 46. Ka8 47. Ta7 48. Sa3 49. Ta1 50. Ta2 51. Sa1 52. b3 53. Db2
play all play one stop play next play all
paul: See P1007350 (2011-7-3)
paul: The first 28 moves checked by Jacobi(~2.5 hours) (2018-4-24)
more ...
comment
Keywords: Unique Proof Game, Length Record, Series mover
Genre: Retro, Fairies
Input: Gerd Wilts, 1997-1-9
Last update: A.Buchanan, 2018-4-24 more...
39 - P0008584
Bernd Schwarzkopf
6020 Die Schwalbe 107 10/1987
P0008584
(1+0) cooked
Ergänze sK und 5wSS zu einem IC!
a) AL: +sKe7, wSf6f7g8h6h7
b) NL: +sKb6, wSa7a8b3b7b8
play all play one stop play next play all
Schon 1998 fanden die Brüder Ulrich und Roland Voigt die NL: wSa7a8b3b7b8 - sKb6, die auch diagonal gespiegelt und in anderen Ecken möglich ist.
Cook: +wSa7a8b3b7b8+sKb6
Bernd Schwarzkopf: Schon 1998 fanden die Brüder Ulrich und Roland Voigt die NL: wSa7a8b3b7b8 - sKb6, die auch diagonal gespiegelt und in anderen Ecken möglich ist. (2018-6-11)
Henrik Juel: In the intended solution the check is clearly impossible
In the cook the check seems to be explained by -1.Sc7xa8+, but then Black has no preceeding move available, because all empty squares around Kb6 are covered by two white knights, and a possible uncapture on a8 does not help (2018-6-11)
comment
Keywords: Illegal cluster, only Kings, Symmetrical position, Asymmetrical solution
Genre: Retro
Reprints: (V) Problemkiste 109 02/1997
H39 ASymmetrie 2013
Input: Gerd Wilts, 1997-2-22
Last update: Alfred Pfeiffer, 2018-6-13 more...
40 - P0500309
Claude Goumondy
2409 Die Schwalbe 50, p. 221, 04/1978
3. Preis
P0500309
(5+8) C+
h#2
b) wBc6 nach a4
c) ferner wSe8 nach d7
d) ferner sBb3 nach d3
a) 1. Ke6 d4 2. Df7 Te5#
b) 1. Kc6 d3 2. Dd7 axb5#
c) 1. Kc4 dxc3 2. Dd3 Tc5#
d) 1. Ke4 dxe3 2. Df3 Te5#
play all play one stop play next play all
KSp Königsstern
BSp
siehe P0503414
Sally: Albino und schwarzer Königsstern. Beide Themen sind zwar auch schon im Hilfsmatt bekannt, aber in dieser Verbindung sind sie hier zum erstenmal dargestellt. (2018-6-22)
comment
Keywords: Albino, Figurenspiel, king's star
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Gerd Wilts, 1996-6-6
Last update: Alfred Pfeiffer, 2018-6-23 more...
41 - P0500314
Claude Goumondy
2571 Die Schwalbe 53, p. 313, 10/1978
5. ehrende Erwähnung
P0500314
(4+5) C+
h#3
b) sDc5 tauschen mit sBe5
c) sDc5 nach f6
a) 1. Lc6 Lg8 2. Le4 Tf7 3. Kd5 Tf6#
b) 1. Lb5 La8 2. Lc4 Tb7 3. Kd5 Tb6#
c) 1. Ld7 Lxb3 2. Lf5 c4 3. Ke6 c5#
play all play one stop play next play all
Sally: Drei verschiedene Batteriematts mit nur neun Steinen. (2018-6-22)
comment

Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Gerd Wilts, 1996-6-6
Last update: hpr, 1999-5-17 more...
42 - P0500324
Claude Goumondy
2798 Die Schwalbe 57, p. 433, 06/1979
4. Preis
P0500324
(5+4) C+
h#2
b) wSh3 nach h2
c) wSh3 nach g2
d) wSh3 nach f2
e) wSh3 nach e3
f) wSh3 nach c8
a) 1. Ke3 Sg5 2. Dd2 Tf3#
b) 1. Ke4 Tf5 2. Dd3 Te5#
c) 1. Kd3 Tf4 2. Dc2 Td4#
d) 1. Kc4 Kc6 2. Db3 Tf4#
e) 1. Kc5 Kc7 2. Db4 Tf5#
f) 1. Kd5 Te6 2. Dc4 Te5#
play all play one stop play next play all
KSp
DSp
Doppelveröffentlichung!
Sally: Mit kleinen Mitteln sehr gut komponiert. Ein hervorragendes Stück! Dieser sechsmal Synchron-side step ist bewundernswert.
Schade , das es auch nicht "Ke5" geht. (2018-6-22)
comment
Keywords: Figurenspiel
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Reprints: 9455 Schach 04/1981
Input: Gerd Wilts, 1996-6-6
Last update: hpr, 1999-5-17 more...
43 - P0500326
Claude Goumondy
2968 Die Schwalbe 60 12/1979
1. ehrende Erwähnung
P0500326
(4+7) C+
h#2
b) wSb6 nach b8
c) ferner sKd4 nach e4
d) ferner wLe2 nach a6
a) 1. Te3 Lh6 2. Le4 Lxg7#
b) 1. Le4 Ld2 2. Td5 Sc6#
c) 1. Ld4 Sd7 2. Te5 Sf6#
d) 1. Td3 Sd7 2. Ld4 Lxb7#
play all play one stop play next play all
Sally: Vier mal Hilfsmatt-Inder, wobei lediglich , der symmetrische
lösungsverlauf in a) und d) bzw. b) und c) stört. Analoges Spiel der schwarzen Türme und Läufer auf der d und e Linie. (2018-6-24)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Gerd Wilts, 1996-6-6
Last update: Alfred Pfeiffer, 2018-6-25 more...
44 - P0500334
Oskar Wielgos
2857v Die Schwalbe 58, p. 458, 08/1979
3. Lob
P0500334
(9+10) C+
h#2
b) wKe1 nach g2
a) 1. Sxe4+ Sg3 2. Sf2+ Se2#
b) 1. Sxe4+ Sd2 2. Sf2+ Sf3#
play all play one stop play next play all
Sally: Mattwechsel bei gleichen schwarzen Zügen. Ein harmonischer Ablauf mit zweimal s. Switchback. (2018-6-21)
comment

Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Gerd Wilts, 1996-6-6
Last update: hpr, 1999-3-20 more...
45 - P0500346
Claude Goumondy
3081 Die Schwalbe 62, p. 49, 04/1980
4. Preis
P0500346
(6+9) C+
h#2
b) Tausch sKc4<->sBc5
a) 1. De3 Ld5+ 2. Kd3 De4#
b) 1. Se4 Th6 2. Kd5 Dh5#
play all play one stop play next play all
klären Auszeichnung
Janevski zitiert in "ASP" (Nr.348) den 5. Preis
Sally: "Voraus-Selbstfesselung ermöglicht direkte Selbstfesselung. Dabei Wechsel zwischen aktiver und passiver Figur mit T-Versellungen als gemeinsames Element. die w. Bahnuungen beeindrucken. (2018-6-24)
Anton Baumann: Nachträglich auf 4. Rang vorgerückt wegen Rückstufung des 1. Preises (Schwalbe April 1983 S. 59) (2018-6-25)
comment
Keywords: Fesselungsspiel (222 202 000)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Reprints: 3081 Die Schwalbe 79, p. 28, 02/1983
Input: Gerd Wilts, 1996-6-6
Last update: Alfred Pfeiffer, 2018-6-25 more...
46 - P0500984
Herbert Grasemann
Deutsche Schachblätter 1950
Dem deutschen Schachmeister, -schriftsteller und Problemfreund Kurt Richter zum 50. Geburtstag gewidmet
2. Preis
P0500984
(4+8)
#6
1. Dh3+ Ke2 2. Df1+ Kxf1 3. Lh3+ Ke2 4. Lf1+ Kxf1 5. Sf5! Ta2 6. Sg3#
play all play one stop play next play all
ohne den wLf5 ginge sofort 1. Sf5 ... 2. Sg3#
Figuren-Kranz 3×3 d1f3
Erich Bartel: Nachdrucke:
1) Schach-Echo 1955.S.223.---
2) 50 Schach ohne Partner 1977.---
3) 300a Beispiele zur Ideengeschichte des Schachproblems 1982.---
4) feenschach (66) VIII 1983.--
5) 63 logische Phantasien 1986.---
6) 075 Kegelschach 1997.---
7) Die Schwalbe (176) IV 1999,S.64.---
8) Schach VII 1999,S.76.---
9) 1019 Minimalkunst im Schach 2006.---
10) VIII Die Schwalbe (225) VI 2007,S.137.--- (2007-6-18)
Steven Dowd: According to Murkisch, this problem is dedicated "Kurt Richter zum 50. Geburtstag." (2007-6-22)
Sally: 54 Das logische S. Problem.
S. 506 Schwalbe Juni 2008. (2010-4-13)
Sally: S. 26, Nr 23c Schwalben - Treff 90 ( W. E. Kuhn 1990). (2011-12-8)
Sally: Die Aufgabe wurde ferner in "Informal-Ringturnier" der Schwalbe 1950 mit dem 5. Preis ausgezeichnet.
Der Sh4 möchte auf g3 mattsetzen doch wird 1. Sf5?? durch den eigenen Läufer behindert,. Für beliebige Wegzüge des Läufers ist Schwarz zu stark. Dem räumenden Schachgebot :
1. Lh3+?? wiederum steht noch die eigene Dame im Wege. Also hinweg mut ihr, damit der Läufer folgen kann. (2018-9-22)
comment

Genre: n#
Reprints: 206 Volksstimme (Chemnitz) 15/09/1962
Schachsport (LVOOe) 17 03/02/1989
Input: Gerd Wilts, 1996-6-6
Last update: Mario Richter, 2016-9-19 more...
47 - P0500988
Hans Peter Rehm
Deutsche Schachblätter 1964
1. Preis
P0500988
(4+14) C+
#7
1. Ke3! droht 2. Scd2#
1. ... Te7+ 2. Kxd3 Sb4+ 3. Kd2! droht 4. Sa3#
3. ... Ta7 4. Sba5 Txa5 5. La4 Txa4 6. Kd1 ... 7. Sd2#
play all play one stop play next play all
Sally: Nach:
1. Ke3!; 2. Kxd3; 3. Kd2 - Ta7, hat Weiß durch die Königszüge den Sc6 nach b4 gelenkt und dadurch die Linie a4 - c4 unterbrochen, so dass jetzt der Hauptplan ablaufen kann, der in einem schönen Opferminimal endet.
Das ganze ist eine groß angelegte Beschäftigungslenkung, um die Masse. des wLd1 loszuwerden.
167 Beispiele zur Ideengeschichte Breuer 1982. (2017-3-24)
Henrik Juel: for clarity: 1... Te7+ with check
Other defenses allow shorter mate, e.g.,
3... Te2+? 4.Lxe2 Sc2 5.Ld1,Ld3 and #6
C+ by Popeye 4.61 (2017-3-24)
Sally: 1. Sba5?- Txa5!,
2. La4 - Txa4,
3. Kd1 [Sd2#] - Txc4!
1. Ke3! [2. Scd2#] Lepuschütz-Thema - Te7+
2. Kxd3 - Sb4+,
3. Kd2! [4. Sa3#] - Tat, usw. (2018-6-19)
comment
Keywords: Beschäftigungslenkung, Lepuschütz theme, Pure Round Trip (K), Opferminimal
Genre: n#
Computer test: Popeye 4.61
Reprints: 167 Beispiele zur Ideengeschichte des Schachproblems 1982
Input: Gerd Wilts, 1996-6-6
Last update: Alfred Pfeiffer, 2018-6-19 more...
48 - P0501003
Thomas R. Dawson
2525 Bolton Football Field 26/12/1914
P0501003
(1+5) C+
s#11
Schachzickzack
1. Kh4 Te4+ 2. Kh5 Th4,Te5+ 3. Kg6 Tg4,Th6,Tg5+ 4. Kf7 Tg7,Th7+ 5. Ke8 Tg8,Th8+ 6. Kd7 Td8+ 7. Ke6 Td6+ 8. Kf5 e6+ 9. Kf4 e5+ 10. Kg4 f5+ 11. Kh3 Th6#
play all play one stop play next play all
paul: Verified with WinChloe. (2018-5-6)
comment
Keywords: Checking Zigzag, Pure Round Trip, Rex solus (w)
Genre: Fairies
Computer test: WinChloe
Reprints: 87 Caissa's Fairy Tales 1947
220 diagrammes special 04/1991
Input: Gerd Wilts, 1996-6-6
Last update: Alfred Pfeiffer, 2018-5-7 more...
49 - P0501351
Felix Alexander Sonnenfeld
Jose Miguel Dias Figueiredo

Bolletino Circ. Scacch. Bolognese 1966
Lob
P0501351
(3+5) cooked
h#3
b) sDh7 nach f5
a) 1. f5 Ld8 2. Db7 Sf6 3. Df3 Sh5#
b) 1. Dg5 Kc4 2. Kf5 Kd5 3. Df4 Se7#
play all play one stop play next play all
Cook: Dual/NL:
b) 1. Dg5 Lg3+ 2. Kf5 Kd5 3. f6 Se7#
1. De6 Kd3 2. Ke5 Se7 3. f6 Lg3#
etc. (Viktoras Paliulionis)
Viktoras Paliulionis: Cooks in b):
1.Qg5 Bg3+ 2.Kf5 Kd5 3.f6 Se7#
1.Qe6 Kd3 2.Ke5 Se7 3.f6 Bg3# etc. (2018-4-24)
Adrian Storisteanu: Typo in solution a), there is a mate after 3...Sh5#. (2018-4-24)
milan: wKd4-b3 or promoted bQf5 M.Frelih (2018-7-1)
Henrik Juel: a) is C+ by Popeye 4.61 (Adrian), b) is cooked (Viktoras) (2018-7-1)
comment
Keywords: Interchange (kd (1)), tempo play (K)
Genre: h#
Input: hpr, 1996-7-1
Last update: Alfred Pfeiffer, 2018-7-2 more...
50 - P0502738
Vladimir Pachman
12431 Schweizerische Schachzeitung 03/1984
P0502738
(5+14) C+
h#3
b) wBc2 nach c4
a) 1. Sc6 Kh5 2. De5+ Kh6 3. Sd4 Sxc3#
b) 1. Sc2 Kh6 2. De3+ Kh5 3. Sd4 Sc5#
play all play one stop play next play all
Sally: Die an sich schöne Aufgabe muss mit viel Ebenholz erkauft werden. Zweimal Platzwechsel sD/sS, mit vertauschten weißen
Königszügen. (2018-6-28)
comment
Keywords: Interchange (ds,ds), tempo play (K,K)
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: hpr, 1996-7-28
Last update: Alfred Pfeiffer, 2018-6-28 more...
51 - P0504315
Wladimir Naef
13806 Schweizerische Schachzeitung 10/1993
P0504315
(4+5) C+
h#3
3.1...
1) 1. Tg8 Le6 2. Tg2 Sd3+ 3. Kg3 Th3#
2) 1. Te8 Th3 2. Te4 Le6 3. Sg5 Sd3#
3) 1. Kg4 Sd3 2. Lf6 Th3 3. Lg5 Le6#
play all play one stop play next play all
WS- WL- WT
Sally: Weisser Zyklus mit nur 9 Steinen, in welchem die zuletzt blockende schwarze Figur der mattsetzenden weissen entspricht
Nr. 253 schachkunst.
(Eine Auswahl der schönsten Schweizer Schachaufgaben aus den
Jahren 1987 - 1996) (2018-5-24)
comment
Keywords: Cycle
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: 253 schaCHkunst 2016
Input: Torsten Linss, 1996-10-9
Last update: Alfred Pfeiffer, 2018-5-24 more...
52 - P0504392
Udo Degener
12262 Schweizerische Schachzeitung 02/1983
P0504392
(5+2) C+
h#2
b) sLd5 nach g5
c) sLa1 nach a2
a) 1. Le6 b4+ 2. Kd5 c4#
b) 1. Ld2 c4 2. Lb4 d4#
c) 1. Le4 d4+ 2. Kd5 b4#
play all play one stop play next play all
WB- WB- WB
Sally: Die zykliche Vertauschung der weißen Bauernzüge machen den besonderen Reiz dieser Aufgabe aus. Klein aber fein ! (2018-6-26)
comment
Keywords: Cycle
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Torsten Linss, 1996-10-9
Last update: hpr, 1999-7-7 more...
53 - P0504535
Claude Goumondy
13036 Schweizerische Schachzeitung 01/1988
P0504535
(7+10) C+
h#2
b) +sBe3
c) wSb5 nach f7
a) 1. Lg8 Txe5 2. Lc4 Lxf5#
b) 1. e2 Lxf5+ 2. Ke3 Txf3#
c) 1. Ke4+ Txf3 2. Td4 Txe5#
play all play one stop play next play all
WL- WT- WT
Sally: Wenn man die 3. Lösungsphase ignorierte, konnte man den hüb schen Zyklus: AB/(C); BC/(A); CA/(B) nicht entdecken.
Fesselung dreier w. Steine, wobei die Figur, die zum Ziehen aussetzt, ihr Opfer fesselt. (2018-6-22)
comment
Keywords: Cycle
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Torsten Linss, 1996-10-9
Last update: Alfred Pfeiffer, 2018-6-22 more...
54 - P0505031
Norbert Geissler
6102 Thema Danicum 10/1994
P0505031
(4+4) C+
h#6
0.1...
1. ... a4 2. c5 a5 3. c4 a6 4. c3 a7 5. cxb2 a8=D 6. bxc1=S Da1#
play all play one stop play next play all
Erich Bartel: Nachdruck:
1) E3 Problemkiste (107) X 1996.-- (2007-5-29)
Yuri Bilokin: tempo play? Line opening! (2018-10-6)
comment
Keywords: Excelsior (ws), Excelsior, black (auto key), Excelsior, white (auto key), tempo play
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Markus Manhart, 1996-12-25
Last update: hpr, 2001-9-13 more...
55 - P0505723
Hans Klüver
8883 Skakbladet 07/1970
P0505723
(4+3) C+
h#2
1. Lh8 La8 2. Kxa8 Txh8#
play all play one stop play next play all
LSp
Sally: [Zwei Läuferschlaghinführungslängstzüge]mit Kraftopfer auf a8. (2018-6-2)
more ...
comment
Keywords: Figurenspiel
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: E10) Problemkiste 171 06/2007
Input: hpr, 1996-12-29
Last update: Alfred Pfeiffer, 2018-6-2 more...
56 - P0506286
Jean-Marc Loustau
Jacques Rotenberg

2595 diagrammes 100 01-03/1992
Preis
P0506286
(4+10) C+
h#3
2.1...
1) 1. Df8 Lg8 2. Df7 Tf4+ 3. Kd5 Lxf7#
2) 1. Dg8 Tf8 2. Df7 Ld5+ 3. Kf5 Txf7#
play all play one stop play next play all
Jacques Rotenberg: .
critical moves
Maslar
Diagonal/orthogonal echo
model mates (2018-3-13)
Jacques Rotenberg: .
withdrawal moves
mates on a same square (2018-10-18)
comment
Keywords: Switchback
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: (P1) Springaren 73, p. 75, 05/1998
E121 FIDE Album 1992-1994 2001
Input: Markus Manhart, 1997-1-6
Last update: Marcin Banaszek, 2018-6-19 more...
57 - P0507923
Joao Baptista Santiago
5207 The Fairy Chess Review 18 06/1942
P0507923
(6+2) C+
h#2***
* 1. ... d8=S 2. e5 Se6#
* 1. ... d8=D 2. Ke5 Dd6#
* 1. ... f7 2. e5 f8=D,T#
1. Ke5 d8=S 2. Kd4 Sc6#
play all play one stop play next play all
Cook: geduldete Duale
t/Minimal-b, t/Allumwandlung, u/61102, u/DST-S
Alfred Pfeiffer: Keine L-Umwandlung, daher keine Allumwandlung. (2018-5-8)
comment
Keywords: Promotion (SDT), under-promotion
Genre: h#
Computer test: Popeye 3.44 Andernach (1024 KB)
Input: Erich Bartel, 1997-5-23
Last update: Alfred Pfeiffer, 2018-5-8 more...
58 - P0509100
Arturo Carra
4867 Arbejder-Skak , p. 398, 11/1958
nach T. Kardos
P0509100
(3+10) C+
h#5
1. Kd6 c8=D 2. h1=T+ Dc1 3. Th2 d4 4. Tc2 Dg5 5. Tc6 Dd8#
play all play one stop play next play all
nach L. Talaber
Felber, Volker: Im Original steht 'efter T. Kardos). (2018-9-29)
Gerald Ettl: Laszlo Talaber hat anstelle eines sLa1 einen sT auf a2 stehen. (2018-9-29)
Henrik Juel: The Talaber problem is P0509891 (2018-9-29)
comment
Keywords: Check Protection, Promotion
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Markus Manhart, 1997-6-27
Last update: Felber, Volker, 2018-9-29 more...
59 - P0509116
Eugene Albert
794 Sahovski Glasnik 05/1963
4. Preis
P0509116
(2+4) C+
h#8
1. Tg1 Lf3 2. T7g3 Lg4 3. Kb4 Kg5 4. Kc3 Kf4 5. Kd2 Lf3 6. Ke1 Ke3 7. Kf1 Kd2 8. T3g2 Le2#
play all play one stop play next play all
more ...
comment
Keywords: Check Protection
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: 650 FIDE Album 1962-1964 1968
1174 Ideal-Mate Encyclopedia Vol.1 1999
Input: Markus Manhart, 1997-6-28
Last update: Alfred Pfeiffer, 2018-9-18 more...
60 - P0509711
Hans Klüver
10188 Skakbladet 06/1979
P0509711
(3+3) C+
h#5
1. Sc7 Le8 2. Kf5 La4 3. Ke6 b5 4. Kd7 b6+ 5. Kd8 bxc7#
play all play one stop play next play all
more ...
comment
Keywords: Check Protection
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: 47 Hans Klüver. Ein Schachporträt 1988
Input: Markus Manhart, 1997-6-28
Last update: Alfred Pfeiffer, 2018-6-2 more...
61 - P0513103
Stanko Milenkovic
776 Sahovski Glasnik 02-03/1963
1. ehrende Ewähnung
P0513103
(3+3) C+
h#3
b) wLa6 nach a5
c) wLa6 nach a4
a) 1. Ld4+ Kc1 2. Tb3 Sc7+ 3. Kc3 Sd5#
b) 1. Lf4 Sc3 2. Kd4 Kb3 3. Le5 Lb6#
c) 1. Td1 Sd4 2. Kd3 Lb5+ 3. Kd2 Sf3#
play all play one stop play next play all
more ...
comment
Keywords: Aristocrat
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Markus Manhart, 1997-9-30
Last update: Alfred Pfeiffer, 2018-9-18 more...
62 - P0513458
Tivadar Kardos
12273 Schweizerische Schachzeitung 03/1983
P0513458
(4+2) C+
h#2
b) wKb1 nach b7
a) 1. Kc4 Le2+ 2. Kc3 Ld2#
b) 1. Lc2 Lf8 2. Le4 Lb3#
play all play one stop play next play all
Sally: Hübsche Matbilder, aber keine Zwillingsbildung, Bauernlos, nicht eineeig. (2018-6-25)
comment
Keywords: Aristocrat
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Markus Manhart, 1997-9-30
Last update: Alfred Pfeiffer, 2018-6-25 more...
63 - P0515350
Edgar D. Holladay
184 Ideal-Mate Review 09-10/1983
P0515350
(3+2) C+
h#3
2.1...
1) 1. Ld3 Ka2 2. Ka4 Sc6 3. Lb5 b3#
2) 1. Ka5 Kc4 2. Lc2 Kc5 3. La4 b4#
play all play one stop play next play all
Sally: Verführung:
1. Kc5?- Ka4,
2. La2 - Ka5,
3. Lc4 - Bb4,
4. Kd.. !!
durch Ausnutzung der zwei Zugmöglichkeiten des Bauern entstehen zwei überraschend unterschiedliche Idealmatts mit Blocknutzung. (2018-6-13)
comment
Keywords: Symmetrical position, Oneliner, Ideal mate, Asymmetrical solution
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: 3496 Ideal-Mate Encyclopedia Vol.2 2000
E60 ASymmetrie 2013
Input: Hans-Jürgen Schäfer, 1997-9-1
Last update: Alfred Pfeiffer, 2017-9-27 more...
64 - P0516136
Hans Klüver
11697 Skakbladet 08/1988
P0516136
(4+4) C+
h#3
1. g4 Lxg4 2. e5 Sf5 3. 0-0-0 Sd6#
play all play one stop play next play all
Verstellung ScL
nach Julius Keller
more ...
comment
Keywords: Castling (sg), tempo play (b), Verstellung
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Reprints: 57 Hans Klüver. Ein Schachporträt 1988
Input: Andreas Mokosch, 1997-7-25
Last update: Alfred Pfeiffer, 2018-6-2 more...
65 - P0516356
Max Jacobs
4864 Arbejder-Skak , p. 398, 11/1958
P0516356
(5+2) C+
h#3
b) wLa8 nach h1
a) 1. Kd3 f3 2. Le5 Le4 3. Kd4 Sc2#
b) 1. Ke5 f3 2. Ld4 Sc4 3. Kd5 f4#
play all play one stop play next play all
Verstellung BL
klären: autor welcher Jacobs?
Felber, Volker: Quelle schreibt: 'Max Jacobs, U.S.A. (+)'. Daraus schieße ich 'opus postum' (* 01.04.1904, + 27.02.1958). (2018-9-29)
comment
Keywords: Verstellung
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Andreas Mokosch, 1997-7-26
Last update: Felber, Volker, 2018-9-29 more...
66 - P0520042
Aleksandr Grin
12474 Schweizerische Schachzeitung 06/1984
P0520042
(5+8) C+
h#2
3.1...
1) 1. Txd2+ Kc3 2. Tg2 Sc6#
2) 1. Lxd2 Kc4 2. Lf4 Sc6#
3) 1. Lxd4 Kc2 2. Lf2 Lg5#
play all play one stop play next play all
Sally: °
Drei Varationen zum Aufbau einer Stütz-Drittelbatterie in zwei
Zügen, dank schwarzer Mitarbeit und dreimalige, ausgezeichnete
Beseitigung schädlicher weißer Masse. (2018-7-5)
comment
Keywords: Sacrifice of white pieces
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Hans-Jürgen Schäfer, 1997-10-11
Last update: Alfred Pfeiffer, 2018-7-6 more...
67 - P0522763
Dmitry Banny
808 Sahovski Glasnik 07/1963
1. Lob
P0522763
(8+9) C+
h#3
1. Tb4 0-0 2. Lb3 cxb3 3. De2 Tf5#
play all play one stop play next play all
more ...
comment
Keywords: Castling (wk), tempo play (d)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-2-10
Last update: Alfred Pfeiffer, 2018-9-18 more...
68 - P0523371
Oskar Wielgos
v stern 14/06/1979
P0523371
(6+10) cooked
h#2
2.1...
1) 1. Dxb6 Lb7 2. Lc5 Sc3#
2) 1. Dc6 Tb7 2. Lc5 Sc3#
play all play one stop play next play all
Cook: NL
1. Kxa4 bxc7 2. Da3 Lc6#
1. Dd4 Txd4 2. Lc5 Sxc7#
Adrian Storisteanu: Correction attempt for P0574185. (2015-10-21)
Sally: Die Verbesserung mit +sBa5, erlaubt 8 Lösungen ! (2018-6-21)
comment
Keywords: tempo play (T L)
Genre: h#
Input: Markus Manhart, 1998-2-10
Last update: Alfred Pfeiffer, 2015-10-21 more...
69 - P0523479
Bernhard Schauer
12771 Schweizerische Schachzeitung 04/1986
P0523479
(5+4) C+
h#2
2.1...
1) 1. Da3 Te5 2. De3 Txf5#
2) 1. Dg7 Lf6 2. Dg5 Le5#
play all play one stop play next play all
Sally: 1. Dg7! - Lf6, 2. Dg5 - Le5#. (Dg5?).
1. Da3! - Te5, 2. De3 - Txg5#.(De3?).
Zweimal Vermeidung von schwarz/weißer Verbahnung.
Hier fehlt ein Mustermatt. (2018-6-15)
comment
Keywords: tempo play (d d)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-2-10
Last update: Alfred Pfeiffer, 2018-6-16 more...
70 - P0523521
Bernhard Schauer
11959 Schweizerische Schachzeitung 02/1981
P0523521
(6+6) C+
h#2
2.1...
1) 1. Lxd6 Sf4 2. Le5 Sg3#
2) 1. Le5 Lf4 2. Lxd6 Sxd6#
play all play one stop play next play all
Sally: Hübsche Tempoverlustmotivation der Schlüsselzüge.
Schwarz muss seine Zugmöglichkeiten sehr genau dosieren. (2018-6-15)
comment
Keywords: tempo play (l l)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-2-10
Last update: Alfred Pfeiffer, 2018-6-16 more...
71 - P0524249
Udo Degener
12587 Schweizerische Schachzeitung 03/1985
P0524249
(4+3) C+
h#2
2.1...
1) 1. b1=S Lb2 2. e3 Lf3#
2) 1. b1=L Td6+ 2. Kc5 La3#
play all play one stop play next play all
Sally: Hübsche, beachtliche Miniatur mit schönen Farbwechsel-Echo mit Spriner- und Läuferumwandlung als Wartezug, bzw. Öffnung der Schrägen "c1; a3". Im Satz geht erst (1. - Lxb2,2. Be3 - Lf3#) (2018-6-26)
comment
Keywords: Echo, Promotion (s,l), under-promotion
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-2-16
Last update: Alfred Pfeiffer, 2018-6-26 more...
72 - P0524255
György Bakcsi
13119 Schweizerische Schachzeitung 08/1988
P0524255
(4+7) C+
h#3
b) wLb6 nach e6
a) 1. Tc7 dxc7 2. Kc4 c8=L 3. Lc3 Le6#
b) 1. Ta7 d7 2. Kd4 d8=L 3. Sc3 Lb6#
play all play one stop play next play all
Sally: Verblffend schön.
Trotzdem Weiß bloss seinen Läufer hergeben muss, gibt es zwei verschiedene schwarze Blockwechsel auf "c3". (2018-6-23)
comment
Keywords: Echo
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-2-16
Last update: Alfred Pfeiffer, 2018-6-25 more...
73 - P0524424
Jozsef Korponai
1140 Sahovski Glasnik 12/1968
P0524424
(4+3) cooked
h#2*
* 1. ... Sg7 2. Sf4 Db2#
1. Ke6 Sg4 2. Sf7 Dc8#
play all play one stop play next play all
Cook: NL 1. Sxf6 Dxd6+ 2. Ke4 Sg3#
Adrian Storisteanu: Possible fix (all down, wK way up): Kb8 Qb7 Sf4 Sf5 / Ke4 Sd4 Sd5 (4+3) -- *1... Sg6 2.Sf3 Qb1#, 1.Ke5 Sg3 2.Sf6 Qc7#. (2015-9-25)
Harry Fougiaxis: Anticipated by P0536335 (2018-9-16)
comment
Keywords: Echo, Aristocrat
Genre: h#
Input: Markus Manhart, 1998-2-16
Last update: Alfred Pfeiffer, 2015-9-25 more...
74 - P0525915
Claude Goumondy
12787 Schweizerische Schachzeitung 05/1986
P0525915
(4+8) C+
h#2
b) wSd3 nach f3
a) 1. Kf3 Sxf4 2. Se6 Tg3#
b) 1. Kf5 Tg6 2. Sb3 Sh4#
play all play one stop play next play all
Sally: Die Aufgabe bereitet viele Mühe und Schwierigkeiten.
Eine bleibende Erinnerung. (2018-6-22)
comment
Keywords: Fesselungsspiel (236 000 642)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-22 more...
75 - P0526160
Zivko Janevski
3714 Die Schwalbe 72 12/1981
P0526160
(3+7) C+
h#2
b) wDe1 nach d4
a) 1. Dg3+ Sg5 2. Sg4 Sf3#
b) 1. Dg4+ Sg7 2. Lg5 Sxf5#
play all play one stop play next play all
Sally: Wurde irrtümlicherweise ohne sBh5 abgedruckt.
Doppelzweck von 2. Sg4 und Lg5 (Block und Entfesselung).
Schönes spiel von Fesselungen und Entfesselungen. (2018-6-30)
comment
Keywords: Fesselungsspiel (238 422 422)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-30 more...
76 - P0526187
Zivko Janevski
FIDE Olympia Turnier 22 Haifa 1976
4. ehrende Erwähnung (Haifa)
P0526187
(6+12) C+
h#2
b) -sSf7
a) 1. Le5 Td2 2. Sb2 Dh3#
b) 1. Lf7 Dd3 2. Tc3 Te2#
play all play one stop play next play all
Sally: Wurde (auch ?) abgedruckt mit sBg6; anstatt sBh6.
Bei gleicher lösung:
a) 1. Le5! - Td2, 2. Sb2!! (nicht beliebig) - Dh3#.
b) 1. Lf7! - dd3, 2. Tc3!! ( nur so! ) - Te2#.
Antizielelement - Fesselung.
In beiden Fassungen zeigen die ersten weißen Züge eine Selbstfesselung, worauf Schwarz sofort wieder entfesselt. (2018-6-30)
comment
Keywords: Fesselungsspiel (238 624 220)
Genre: h#
Computer test: Popeye WINDOWS-32Bit-Version 3.65 (2048 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-30 more...
77 - P0526268
Udo Degener
12251 Schweizerische Schachzeitung 01/1983
P0526268
(5+10) C+
h#2
b) sKd4 nach f4
a) 1. De4 Tg4 2. Le5 Shf5#
b) 1. Te5 Ld6 2. Se4 Sd5#
play all play one stop play next play all
Sally: Entfesselung, Fesselung; Linienverstellung,Block!
Blütenreine Analogie, gute Zwillingsbildung und Aunutzung der w. Steine (ohne w. Bauern). (2018-6-26)
comment
Keywords: Fesselungsspiel (244 202 220)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-26 more...
78 - P0526899
Vaclav Gebelt
Stepan P. Tsyrulik

Leninskaja Smena 06/03/1966
2. Preis
P0526899
(4+11) cooked
h#2
b) -sSh5
c) -wSg2
a) 1. Te2 De6 2. Sg3 Sh4#
b) 1. Kg4 Sd4 2. h5 Dg8#
c) 1. Lf1 Sd6 2. Ke3 Dxe4#
play all play one stop play next play all
Cook: NL:
a) 1. Td1 Se3 2. Ke2 Dxd1#
b) 1. Ke2 Se3 2. Tb2 Dd1#
Ladislav Packa: +bPc2 C+ by Popeye v4.77 (2018-6-16)
comment
Keywords: Fesselungsspiel (326 000 660)
Genre: h#
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-16 more...
79 - P0526929
Claude Goumondy
12204 Schweizerische Schachzeitung 08/1982
P0526929
(6+8) C+
h#2
b) wSf1 nach h6
c) wBe2 nach g5
a) 1. Ke4 Txd5 2. Tf5 Td4#
b) 1. Kd4 Txe6 2. Sc3 Sf5#
c) 1. Kf5 Lxf6 2. Sf4 Se3#
play all play one stop play next play all
Sally: Raffinierter Zyklus nach dem Schema:
1. K entfesselt A und B; A wird geschlagen.
2. B blokiert ein Fluchtfeld,
Weiß setzt matt unter der Ausnutzung der noch immer bestehenden Fesselung von C. [A/B und C ; Sd5/Tf6 und Se6] (2018-6-22)
comment
Keywords: Fesselungsspiel (333 000 303)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-22 more...
80 - P0526977
Claude Goumondy
12230 Schweizerische Schachzeitung 10/1982
P0526977
(4+9) C+
h#3
b) wLf5 nach b5
c) sLa1 nach h5
a) 1. Tc2 Txd8 2. Lc3 Ld7 3. De3 Lb5#
b) 1. Lc3 La6 2. Ld2 Tb5 3. Tc2 Txb3#
c) 1. f2 Lg6 2. Le2 Tf5 3. Sd2 Tf3#
play all play one stop play next play all
Sally: Mehr als ein Hilfsmatt für den Alltag.
Technisch gekonnt aber nicht umwerfend. (2018-6-22)
comment
Keywords: Fesselungsspiel (333 000 330)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-22 more...
81 - P0527047
Udo Degener
4065 Die Schwalbe 77 10/1982
P0527047
(5+10) C+
h#2
b) wBg3 nach e4
c) sKe3 nach c6
a) 1. Sa6 Lb1 2. f2 Td3#
b) 1. Tg3 Td4 2. Kf4 Sd5#
c) 1. Ld6 Sa4 2. Sd7 Ld5#
play all play one stop play next play all
Sally: Korrektur in Schwalbe; Dezember 1983.
Zyklische Entfesselugen. (2018-6-26)
comment
Keywords: Fesselungsspiel (336 000 660)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-26 more...
82 - P0527172
Claude Goumondy
12059 Schweizerische Schachzeitung 09/1981
P0527172
(4+3) C+
h#2
b) sBe5 nach g7
c) sBe5 nach g3
d) wKb2 nach d7
a) 1. Ke6 Lb4 2. Sd5 Lh3#
b) 1. Kg6 Ld2 2. Sh5 Ld3#
c) 1. Kg4 Ld8 2. Sh3 Le2#
d) 1. Ke4 Lb6 2. Sd3 Lg2#
play all play one stop play next play all
KSp Königsstern
Sally: Schwarzer Königsstern mit vier verschiedenen schwarzen Blocks. (2018-6-22)
comment
Keywords: Fesselungsspiel (414 000 404), Figurenspiel, king's star
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-23 more...
83 - P0527338
Claude Goumondy
12075v Schweizerische Schachzeitung 10/1981
3. Preis
Informalturnier 1981
P0527338
(6+6) C+
h#2
4.1...
1) 1. Td2 Te7 2. Sc2 Lxc4#
2) 1. Te2 Lxb7 2. Se3 Txd4#
3) 1. Kd2 Lxd4 2. Sa3 Lf2#
4) 1. Kc2 Lxc4 2. Sf3 La2#
play all play one stop play next play all
Sally: 3. Pr. Informalturnier 1981.
Ein in Typischen Stil des Autors konstruierter Vierling - auch
was die Thematik betrifft.
Hervorzuheben ist, dass die Aufgabe ohne das Versetzen eines Steins ermöglicht wird. Pluspunkte sind auch die beiden sSS Züge in der lösung. (2018-6-22)
comment
Keywords: Fesselungsspiel (424 000 404)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-1
Last update: Alfred Pfeiffer, 2018-6-22 more...
84 - P0527881
Toma Garai
1022 Schach-Aktiv 10/1988
1. ehrende Erwähnung
P0527881
(4+9) C+
h#3
2.1...
1) 1. g1=L Txc7 2. Lxc7 Ld1 3. Lh2 Lf3#
2) 1. e2 Ld1 2. exd1=T Txc7 3. Tg1 Th7#
play all play one stop play next play all
Sally: Weiße Figur für schwarzes Tempo! Beeindruckender Zug- und
Rollentausch der weißen Figuren. Wechselseitige Akzentuierung
alltäglicher Heranhol-Werte, mit schwarzer Unterverwandlung. (2018-5-31)
comment
Keywords: Sacrifice of white pieces
Genre: h#
Computer test: Popeye C-Version 3. 47 (1024 KB)
Input: Hans-Jürgen Schäfer, 1998-3-11
Last update: Alfred Pfeiffer, 2018-5-31 more...
85 - P0528589
Oskar Wielgos
11961 Schweizerische Schachzeitung 02/1981
P0528589
(4+11) C+
h#2
2.1...
1) 1. Tc4+ Dc3+ 2. Kxc3 Le1#
2) 1. c4+ Dc5+ 2. Kxc5 Le7#
play all play one stop play next play all
Sally: Ein doppelter Umnov-A im Hilfsmatt. (2018-6-21)
comment
Keywords: Sacrifice of white pieces
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Hans-Jürgen Schäfer, 1998-3-11
Last update: Alfred Pfeiffer, 2018-6-21 more...
86 - P0529749
Tivadar Kardos
12500 Schweizerische Schachzeitung 08/1984
P0529749
(2+9) C+
h#5
1. Sge6 Sxg5 2. Td7 Sxf3 3. De7 Se5 4. Lc6 Kb4 5. Td5 Sc4#
play all play one stop play next play all
Sally: Sehr leicht zu lösen. Idealmatt! Köstlich, wie der sK , wie ein Magnet die Figuren anzieht (2018-6-25)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Ralf Krätschmer, 1998-1-7
Last update: Alfred Pfeiffer, 2018-6-25 more...
87 - P0530192
Vladimir Pachman
3082 Die Schwalbe 62, p. 49, 04/1980
1. ehrende Erwähnung
P0530192
(8+9) C+
h#2
3.1...
1) 1. c5 Le1 2. cxd4 Sd5#
2) 1. Sxe6 Sh3 2. Sxd4 Lf4#
3) 1. Sxf5 Lb7 2. Sxd4 Sc4#
play all play one stop play next play all
Der ursprüngliche 1. Preis wurde auf 1. ehrende Erwähnung abgeändert.
Harry Fougiaxis: 1. ehr. Erw. [refer to the revised award in Die Schwalbe 80, 04/1983, p.59] (2006-1-11)
Sally: Hervorragender Zyklus: Einheitlich durch schwarze Linienöffnungen bewirkt Vermeidung von Mattführungstripeln. Einziges Fleckchen:
In der 1. Variante erfolgt die Öffnungder Linie "b8 - f4" bereits im 1. Zug.. Drei Modellmatts und das ohne Veränderungen. (2018-6-28)
comment
Keywords: Model mate
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: 3082 Die Schwalbe 79, p. 27, 02/1983
757 FIDE Album 1980-1982 1988
Input: Ralf Krätschmer, 1998-2-11
Last update: Alfred Pfeiffer, 2018-6-28 more...
88 - P0531916
Julius R. Neukomm
1689 Magyar Sakkelet 10/1954
P0531916
(5+3) C+
h#2
2.1...
* 1. ... Lxd2#
1) 1. dxc1=L Sc3 2. Ld2 Sd5#
2) 1. e1=L Sxd2 2. Lf2 Te4#
play all play one stop play next play all
more ...
comment
Keywords: Sacrifice of white pieces, under-promotion (l), Umwandlung im Schlüsselzug
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Ralf Krätschmer, 1998-3-30
Last update: Alfred Pfeiffer, 2018-8-13 more...
89 - P0532626
Claude Goumondy
404 Levelezesi Sakkhirado 01/1984
P0532626
(8+10) cooked
h#2
b) wKd1 nach h7
c) wSd6 nach g2
a) 1. b4 Kxd2 2. Ld5 c3#
b) 1. Sf2 Th3 2. Txe5 Td3#
c) 1. Dxe5 Sf4 2. De4 Se2#
play all play one stop play next play all
Cook: NL:
a) 1. Kd5 Txc4 2. Te2 Txc5#
und 1. Ld8 Kxd2 2. Dd5 c3#
b) 1. Kd5 Txc4 2. Te1 Txc5#
c) 1. Se4 Sf4 2. Dd5 Se2#
Ladislav Packa: +bPb6, e6=bR, C+ by Popeye v4.77 (2018-6-16)
comment
Keywords: Fesselungsspiel (224 202 202)
Genre: h#
Input: Markus Manhart, 1998-3-28
Last update: Alfred Pfeiffer, 2018-6-16 more...
90 - P0532636
Alexander Toger
827 Sahovski Glasnik 12/1963
2. ehrende Erwähnung
P0532636
(6+6) C+
h#2
b) sKh6 nach h7
a) 1. Kh7 Kf4 2. Tg8 Sg5#
b) 1. Kh6 Sf6 2. Tg5 Sg8#
play all play one stop play next play all
more ...
comment
Keywords: Fesselungsspiel (224 202 202)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-28
Last update: Alfred Pfeiffer, 2018-9-18 more...
91 - P0532798
Claude Goumondy
12020 Schweizerische Schachzeitung 06/1981
P0532798
(4+9) C+
h#2
2.1...
1) 1. Lf7+ Dg6 2. Lg5 Dd3#
2) 1. Lg5+ De7 2. Lf7 Db4#
play all play one stop play next play all
Sally: Ein kleiner Läufertausch, aber mit großen Wirkungen.
Doppelter Umnow-A, mit alternativen s. Zügen, primär schachbietend mit prophylaktischen Schachverstellungen. (2018-6-22)
comment
Keywords: Fesselungsspiel (224 220 220)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-28
Last update: Alfred Pfeiffer, 2018-6-22 more...
92 - P0533027
Claude Goumondy
12391 Schweizerische Schachzeitung 12/1983
P0533027
(6+9) C+
h#2
b) wBb2 nach b3
a) 1. Da5 Lxf5 2. Dd2 Se5#
b) 1. Tf2 Txd5 2. Td2 Txe3#
play all play one stop play next play all
Sally: a) 1. Da5! - Lxf5, 2. Dd2 - Se5# (1. Tf2?)
b) 1. Tf2! - Sxd5, 2. Td2 - Txe3#(1. Da5?)
Typischer Goumondy, aber die ersten beiden Züge sind zu brutal. (2018-6-22)
comment
Keywords: Fesselungsspiel (224 404 000)
Genre: h#
Computer test: Popeye C-Version 3.47 (1024 KB)
Input: Markus Manhart, 1998-3-28
Last update: Alfred Pfeiffer, 2018-6-22 more...
93 - P0535513
Cor Goldschmeding
5295 Schweizer Schach-Magazin , p. 382, 11/1991
5. ehrende Erwähnung
P0535513
(6+7) C+
h#2
b) wBb5 nach d5
a) 1. Kd5 Lxd3 2. Le6+ Lh7#
b) 1. Kf5 Txd3 2. Lg4+ Th3#
play all play one stop play next play all
Harry Fougiaxis: The correct source is: 5295 Schweizer Schach-Magazin 1991 [5. ehrende Erwähnung] (2005-5-13)
Sally: Schweizer Schach Magazin 5294 Nov. 1991. S. 382;
5. Ehrende Erwähnung.
Hier kann eine weiße Drohung nicht in der Tat umgesetzt werden, weil Schwarz kein passiver Wartezug zur Verfügung steht.
Satz : 1. Lxd3? - Kd5, 2. Lf5#.
Lösung :
1. Kd5 - Lxd3, 2. Le6+ - Lh7#.
1. Kf5 - Txd3, 2. Lg4+ - Th3#.
Abkreuzungsschach mit Läuferblock und Mustermatt. (2018-6-25)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: Schweizerische Schachzeitung 1991
Input: Michal Dragoun, 1998-4-6
Last update: Alfred Pfeiffer, 2018-6-25 more...
94 - P0536132
Vladimir Pachman
12005 Schweizerische Schachzeitung 05/1981
2. Preis
P0536132
(6+6) C+
h#2
2.1...
1) 1. Tg7 Sg4 2. Sg3 Le3#
2) 1. Sg7 Sf3 2. Tf5 e5#
play all play one stop play next play all
Sally: Die gefährliche s Figur räumt jeweils der ungefährlichen Platz
Der "Eine" fesselt , der "Andere" entfesselt. Dazu zwei selbstverständliche Mustermatts. (2018-6-28)
comment
Keywords: Fesselungsspiel (212 000 220)
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Michal Dragoun, 1998-4-6
Last update: Alfred Pfeiffer, 2018-6-28 more...
95 - P0536301
Uri Avner
FIDE Tagung 1997
2. Preis
P0536301
(6+8) C+
h#2
2.1...
1) 1. Kxd8 Lxg5 2. Sxg5 Td2#
2) 1. Kd6 Txh6 2. Sxh6 Lb4#
play all play one stop play next play all
Author: Themes: "Enabling black moves"; "Sacrifice of white pieces"; Exchange of function wT/wL". (2004-1-10)
HBae: Der Name für den Account “Author” (=Uri Avner?) ist sehr unglücklich gewählt, weil man dahinter den jeweiligen Problem-Autor vermuten könnte. Siehe z.Bsp. P0544790 (Bakcsi), P0579232 (Haymann), P0527922 (Csak), P0529075 (Ersek), P0566072 (Zoltan), P0005061 (Olin, hidden). (2018-10-7)
comment

Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
Input: Michal Dragoun, 1998-4-6
Last update: hpr, 1999-11-8 more...
96 - P0539165
Aleksandr Grin
1498 Schach-Aktiv 06/1993
P0539165
(8+11) C+
h#2
b) wBc4 nach g4
c) wBc4 nach d3
d) sSf4 nach h4
e) ferner wSh8 nach g3
a) 1. Lg2 Lf3 2. h4 Lg4#
b) 1. Lf3 Le4 2. Sd5 Lf5#
c) 1. Le4 Ld5+ 2. Kf5 dxe4#
d) 1. Ld5 Lc6 2. Sf5 cxd5#
e) 1. Lc6 Lb7 2. Ld7 Ld5#
play all play one stop play next play all
Sally: Fünfmalige schwarz - weiße - Bahnung derselben Läufer,
Magnet - Thema , ohne Versetzen des schwarzen Königs. (2018-7-5)
more ...
comment
Keywords: Magnet Theme, Clearance
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Michal Dragoun, 1998-4-7
Last update: Alfred Pfeiffer, 2018-7-6 more...
97 - P0539407
Claude Goumondy
7744 Die Schwalbe 135 06/1992
P0539407
(6+9) C+
h#2
b) sDh7 nach h5
a) 1. Te6 Se3 2. b6 Se4#
b) 1. Le3 Sd5 2. Td6 Sxe3#
play all play one stop play next play all
Sally: Alles andere als "Neu".
Ein inhaltlich alter Hut sind diese Verstell/ Entfesselungsspielchen, obendrei entwertet durch unheitliches ws-Spiel. Es ließen sich außerdem 2 Steine einsparen. (2018-6-22)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Michal Dragoun, 1998-4-8
Last update: Alfred Pfeiffer, 2018-6-22 more...
98 - P0539413
Claude Goumondy
7804 Die Schwalbe 136 08/1992
P0539413
(6+9) C+
h#2
2.1...
1) 1. Sd7 De3 2. Tg5 De7#
2) 1. Sd4 Dg5 2. Te3 Dd5#
play all play one stop play next play all
Selbstvorwegnahme, siehe P0536767
Sally: Schwarze Selbstverstellungsthematik in gekonnter Doppelsetzung. Vollständige Halbfesselung, Entfesselung und Hinterstellungen des Te5,Enfesselungen der wD und Matts im Fesselungsbereich der sSS. Durchschnittliches allerdings nicht gleich großmeisterlichen Hilfsmatt. Der Bg6 stört. (2018-6-22)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Michal Dragoun, 1998-4-8
Last update: Alfred Pfeiffer, 2018-6-22 more...
99 - P0539450
Horst Böttger
8239 Die Schwalbe 1993
P0539450
(5+11) C+
h#2
b) sBe3 nach d4
a) 1. Le6 Kg2 2. Ke4 Lg6#
b) 1. Te6 Sc1+ 2. Kc4 Tc8#
play all play one stop play next play all
Sally: Linienöffnung mt doppelter Linienverstellung und s. Selbstfesselung, alles in Doppelsetung. Feine analoge Spiele
mit jeweiliger Dreifachnutzung des Schnittpunktes "e6". Ohne w. Bauern, aber auch der König spielt mit.
Eine bessere Stellung laut Preisrichter M.McDowell ist:
Kg1/Ta5/Te8/Lf7/Se2, wie gehabt; sKd3/Tb6/Th7/Lf5 Bb4,d4,e3,g5 (2018-6-9)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Michal Dragoun, 1998-4-8
Last update: Alfred Pfeiffer, 2018-6-9 more...
100 - P0540025
Claude Goumondy
13707 Schweizerische Schachzeitung 1993
1. ehrende Erwähnung
P0540025
(6+6) C+
h#2
2.1...
1) 1. Txd4 Lb1 2. Sc7 Se4#
2) 1. Sxd4 Tb1 2. Tf4 Sb5#
play all play one stop play next play all
Sally: Ein Umnow ist im h#. immer wieder faszinierend.
Rollentausch bei Schwarz ( Selbstfesselung d4/Entfesselung und Linienöffnung bei Weiß; antikritische Züge nach b1). (2018-6-22)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Michal Dragoun, 1998-4-8
Last update: Alfred Pfeiffer, 2018-6-22 more...
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