Die Schwalbe

446 problem(s) found in 6129 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20220810 AND G='h#' AND NOT S='Problemist Ukrainy' AND NOT CPLUS ] [download as LaTeX]

1 - P0000047
Nikita M. Plaksin
Faat Fatchullin

5646 Die Schwalbe 101 10/1986
2. Preis
P0000047
(11+10)
h#2*
*) 1. ... 0-0-0 2. Txf2 Dxg1#
1) 1. cxd2+ Kxd2 2. Txf2 Dxg1#
R: 1. ... Da8-h8 2. d3xTe4 Da2-a8 3. c2xSd3 Sc1-d3+ 4. b4xLc5 Db1-a2 5. b3-b4 Ba2xSb1=D 6. Sa3-b1 und weiter z.B. (Beispielauflösung mri)
6. ... Te8-e4 7. Sc4-a3 Sg4-h2 8. Se5-c4 Th2-g2 9. Sf3-e5 g2-g1=L 10. Sg1-f3 Sh6-g4 11. Sf3xDg1 Th8-e8 12. Sd4-f3 f3xSg2 13. Se3-g2 f4-f3 14. Sc6-d4 Tg2-h2 15. Sa7-c6 Kh2-h1 16. Sc8-a7 Dh1-g1 17. Sb6xLc8 Tg1-g2 18. Sf5-e3 Dc6-h1 19. Sh4-f5 Kh1-h2 20. h2-h3 a3-a2 21. Sa4-b6 Sa2-c1 22. Sb6-a4 Sb4-a2 23. Sa4-b6 Sd5-b4 24. Sb6-a4 Se3-d5 25. Dh3-f1 Sf1-e3 26. Dg4-h3 f5-f4 27. Df4-g4 a4-a3 28. Db4-f4 a5-a4 29. Da3-b4 Kg2-h1 30. Sf3-h4 Kh3-g2 31. Da2-a3 g2-g1=T 32. Db1-a2 Kg4-h3 33. Dd1-b1 h3xTg2 34. Tg1-g2 Kg5-g4 35. Sh4-f3 Kf6-g5 36. Th1-g1 Se3-f1 37. Sf3-h4 h4-h3 38. Sg1-f3 e6xLf5 39. Lh3-f5 Ke7-f6 40. Lf1-h3 Sc4-e3 41. g2-g3 Ke8-e7 42. Sa4-b6 Sg8-h6 43. a2xTb3 Tb6-b3 44. Sh3-g1 Ta6-b6 45. Sb6-a4 Ta8-a6 46. Sg1-h3 a7-a5 47. Sh3-g1 Sa5-c4 48. Sg1-h3 Sb3-a5 49. Sc4-b6 Sc1-b3 50. Sa3-c4 Sb3xLc1 51. Sb1-a3 Sa5-b3 52. Sh3-g1 h5-h4 53. Sg1-h3 c4-c3 54. Sh3-g1 Lf8-c5 55. Sg1-h3 Dc7-c6 56. Sh3-g1 Dd8-c7 57. Sg1-h3 c5-c4 58. Sh3-g1 h7-h5 59. Sg1-h3 e7-e6 60. Sh3-g1 Sc6-a5 61. Sg1-h3 Sb8-c6 62. Sh3-g1 c7-c5 63. Sg1-h3
play all play one stop play next play all
Anton Baumann: Auszeichnung Informalturnier 1986: 2.Preis
Preisbericht: 'Die Schwalbe' 06/2011 S.124 (2023-01-02)
Henrik Juel: How is the SE corner released, without ruining the castling? (2023-01-02)
Mario Richter: Good question, Henrik! I first thought that releasing the SE corner without ruining White's castling right is impossible, but the trick is to uncapture a black Queen in the SE corner at the right moment.

Perhaps Theodore Hwa can use ths problem as a test case for his latest improvement to Retractor 2 ... (2023-01-02)
Henrik Juel: Thanks, Mario
In view of the prize I suspected that the problem was correct, but I did not find the uncapture trick (2023-01-02)
Henrik Juel: C+ Popeye 4.61, because with Black to move White may not castle (2023-01-02)
comment
Keywords: Castling (wl)
Genre: h#, Retro
FEN: 7q/1p1p1pp1/8/2P5/4P3/2p3PP/1P1PPPrn/R3KQbk
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2023-01-02 more...
2 - P0000416
Thomas Brand
4496 Die Schwalbe 83 10/1983
P0000416
(1+2+1) cooked
-1(w+s), dann h#1
Imitator e4
R: 1. ... Kg8xBf7,(If5-e4) Kb4xSb3,(If6-f5), dann 1. Ka4,(Ie6) Sc5#,(If8)
play all play one stop play next play all
Cook: NL
R: 1. Ke7xLf7,xSf7,xBf7,(Id4-e4) d6xDe5,(Ic5-d4), dann 1. Kc2,(Id4) Db2#,(Ia1)
R: 1. Kg6xTf7,Ke6xTf7,(If3-e4,Id3-e4) d6xDe5,(Ie4,Ic4), dann 1. Te7,Tg7,(Id4) Db2#,(Ia1)
Anton Baumann: 'Die Schwalbe' 08/1984 S.308: der Autor korrigiert: wBe5 statt sBe5 (2022-12-23)
comment
Keywords: Help retractor, Kindergarten Problem
Pieces: i = Imitator (I)
Genre: Retro, Fairies, h#
FEN: 8/5K2/8/4p3/4-I3/1k6/8/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-12-13 more...
3 - P0000653
Eliahu Fasher
2311 Die Schwalbe 48 12/1977
P0000653
(12+14) cooked
h#2 (wer?)
Kees: possible fix: Lb1=Sb1 -De1 +Ld1
White begins: 1.Kxb7 Lxe2 2.Kc8 La6#
(1.Txd8+ Kxd8 2.Kf8 Th8# illegal for white has no last move) (2023-06-07)
A.Buchanan: Your fix is good, Kees. It removes the cook, and sLd1 denies R: 1. c2xb3 as well as sLb1 did. Note R: 1 Sc6-d8 0-0+? as black castling rights were lost to let wK enter the back rank. (2023-06-08)
more ...
comment

Genre: h#, Retro
FEN: 1bKN1rk1/1ppn1r1R/5p1P/4pP1p/3p1p2/1PP3P1/PP2P3/Rb2q3
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-06-08 more...
4 - P0000674
Leonid M. Borodatow
2475 Die Schwalbe 51 06/1978
P0000674
(12+11) cooked
h#3
1. ... Kgxf4 2. Tf6 e6 3. Tf8 Sg7#
play all play one stop play next play all
Cook: 1. ... exf6ep 2. 0-0-0 gxf4 3. Td7 a8=D
Failed try, as Bg4xBh5 allows bRh8 to have escaped the cage prior to ep.
Anton Baumann: Sollte eine Verbesserung von P0000777 sein.
Autorabsicht: "letzter Zug f7-f5 sonst retropatt! Jetzt ist aber die Rochade illegal, da der sTh8 nur über e8 aus seiner Ecke kommt. Daher Verführung 1. ... exf6 e.p. 2.0-0-0? Lxf4 3.Td7 a8=D#. Lösung: 1. ... Kxf4 2.Tf6 e6 3.Tf8 sg7#"
Aber: Der s h-Bauer kann auch auf h5 geschlagen worden sein; so konnte der sT über h6 aus seiner Ecke entkommen. Die vermeintliche Verführung ist also NL! (2022-12-14)
comment
Keywords: Castling (sg), Superseded by (P0000058)
Genre: h#, Retro
FEN: r3k3/P7/p1r3pP/4PpBN/3ppnKn/6P1/1PP2PPq/7N
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-12-16 more...
5 - P0000777
Leonid M. Borodatow
1424 Die Schwalbe 30 12/1974
P0000777
(12+10) cooked
h#2.5
1. ... exf6ep 2. 0-0-0? Lxf4 3. Td7 a8=D# try
1. ... Kxf4 2. Tf6 e6 3. Tf8 Sg7# solution
play all play one stop play next play all
Cook: 1. ... Kxf4 2. Te7 e6 3. Tb8 axb8=D,T#
See P0000674
Henrik Juel: The stipulation should probably read h#2.5: 1.exf6ep 0-0-0 2.Bxf4 Rd7 3.a8Q# (2003-08-18)
Anton Baumann: Letzter Zug war f7-f5, sonst retropatt. Die weissen Bauern haben 6x geschlagen. Der s a-Bauer wurde so ebenfalls als Schlagopfer benötigt und musste 2x schlagen, um sich umwandeln zu können. Weiss hat also auf h6 den s Bauern geschlagen. Unabhängig davon ob der sTe6 ein Umwandlungsturm ist oder nicht, muss der sTh8 über e8 aus der Ecke gekommen sein. Also ist die Rochade illegal!
Autorabsicht: 1. ... exf6 e.p. 2.0-0-0 Lxf4 3.Td7 a8=D# ist die Verführung!
Lösung: 1. ... Kxf4 2.Tf6 e6 3.Tf8 Sg7#
leider geht auch: 1. ... Kxf4 2.Te7 e6 3.Tb8 axb8=D,T# (2022-12-13)
A.Buchanan: I agree Anton. I suggest as a fix -bBa6 +bDc2. I think retro, solution and try all work correctly now. Do you folks agree? (2022-12-13)
Anton Baumann: Der Vorschlag von Andrew ergibt eine korrekte Lösung, aber nicht im Sinne des Autors: ohne einen s Stein auf a6 ist f6-f5+ als letzter Zug möglich, d.h. kein Retropatt weil Weiss a6-a7 zurücknehmen kann! 1. ... exf6 e.p. ist deshalb nicht zulässig. LB wollte aber dass f7-f5 der letzte Zug war, damit aber die Rochade illegal ist! (2022-12-14)
Anton Baumann: Mögliche Korrektur: a6=sL, g2=sD (2022-12-15)
A.Buchanan: Yes I agree. I had overlooked the unmove of wPa7 (2022-12-15)
more ...
comment
Keywords: Castling (sg), Valladao Task, Superseded by (P0000058)
Genre: h#, Retro
FEN: r3k3/P7/p3r1pP/4PpBN/3nnpKP/6PB/1P2PPb1/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-12-16 more...
6 - P0000899
Giuseppe Brogi
743 Die Schwalbe 06/1972
P0000899
(8+15) cooked
h#2
b) wSa1
a) 1. T2xh3 Txh3 2. 0-0 Th8#
b) 1. La4 0-0 2. Tf8 Te1#
play all play one stop play next play all
a) White cannot cross-capture, so because of sTh2, w0-0 impossible.
wBe captured sD, either to be captured on f-file or to promote without disrupting sKe8.
b) sTh2 can return to a8 only via e8 as Black cannot cross-capture, so s0-0 is impossible.
wBe was waylaid or promoted after disrupting sKe8.
Cook: 1. T2xh3 Lb4 2. Txg3 Txh8#
1. Sd2 Lf6 2. Tf8 Sd6#
(cooked by MR)
See P0003736 a companion problem.
milan: [-bPa7b6wPg3bSa1+bPg3bBa5-b4 bPc6-d6] h#2 1.2...bRh2? illegal move? M.Frelih (2023-03-30)
more ...
comment
Keywords: Cant Castler, Castling (wksk), Cross-capture (s,w), Superseded by (P1399805)
Genre: h#, Retro
Computer test: Popeye v4.87
FEN: B3k2r/pN1p1p2/1pp3p1/bb3p2/8/p1B3PP/5P1r/nn2K2R
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-03-16 more...
7 - P0001450
Henri Nouguier
324 Europe Echecs 223 07/1977
P0001450
(13+3)
h#1
hans: 1. Th2xf2 De1xf2#!
1. Th2xh3 0-0#? (Castling illegal)

R: -1. Kf1xSe1 Sg2-e1 -2. Ke1-f1 Sf4-g2+ -3. Tg1-h1 Sd5-f4 -4. Tf1-g1 Se3-d5 -5. Tg1-f1 Sf1-e3 -6. Tg1-h1 Tg2-h2 -7. Th2-h1-g1 Tg1-g2 -8. Th1-h2 g2-g1=T -9 h2-h3 h3xSg2 (2010-06-26)
HENRI: Hans solution has a tipo. Their is no D (=Queen in german) mating. One should read the solution in german : 1. Th2xf2 Ke1xf2#! 1.Th2xh3 0-0#?
or in english : 1. Rh2xf2 Ke1xf2#! 1.Rh2xh3 0-0#? (Castling illegal) (2023-10-25)
comment
Keywords: Cant Castler, Castling (wk)
Genre: h#, Retro
FEN: 8/8/8/8/8/PPP3PP/B1rPPP1r/BNk1K2R
Input: Gerd Wilts, 1995-06-03
8 - P0001970
Thomas R. Dawson
26 Schachkongress Teplitz-Schönau im Oktober 1922 1923
P0001970
(13+13)
h#1
1. exf3ep Lc2#
R: 1. f2-f4 f5xTe4 2. Tg4-e4 & e.g. f6-f5 3. Tg1-g4 f7-f6 4. Le4-h7 h5-h4 5. Lg2-e4 h6-h5 6. Lf1-g2 h7-h6 7. g2xh3
play all play one stop play next play all
1.exf3e.p. Bc2# is the only possible solution, but this necessitates R: 1.f2-f4. Can we prove this?

(13+13) with 1+2 pawn captures. Bf8 captured at home, so to satisfy White appetite, the missing Black pawn (a or b) must have promoted via c2 on c1. Two more White units must be captured to allow this.

The kings cage can only be unlocked by retracting WPc2. But the clock is ticking as there are only 6 black moves which can be retracted.

The promoted piece was captured on e3 or h3. If either capture is undone, then a White bishop square is cut off, so WB must be replaced prior to this.

Now the order of the early moves is: WdP moves, WQB & WQR escape, BP promotes on c1 to X (capturing WR at some point), X captured by WP.

So the first White capture must be dxNe3 and the second White capture releases gxXh3. The second White capture releases WKB & WKR. WKR captured by original BfP.

The clock starts ticking with gxh3. Black has 6 pawn moves. WKB has 3 moves to reach h7. WR has 3 if it goes via d file, or 2 if it starts on g1 (in which case WfP or WQB must also move once). So certainly at least 6 White moves. Last move was therefore White (even if the stipulation didn't tell us), and it can only have been WfP coming from f3 or f4. If it had been coming from f3 it would have blocked WKB in its progress, so the last White move was indeed R: 1.f2-f4.

WKR did therefore move from g1-g4-e4, and R: 1. ... fxRe5 2. Rg4-e4. Prior to that, move order not unique, but counting still exact.

Note that WN loitering on b4, pretending to be part of the cage, is present on the board just to make up the numbers.
Jeliss: "Obstruction of passage square f3 to Bishop of same colour."

"Version 'Pittsburgh Leader' 08.06.1913"
Yoav Ben-Zvi: Appears as the first problem (D445) in the booklet on Dawson's RA problems by G.P. Jellis. The obstruction that occurs in the Try -1.Pf3-f4?, by WP of WB, is described as "obstruction of passage square". It is not considered by Dawson and his disciples to be a Retro opposition. Dawson's conception of RO was quite broad, it included cases where the interference was not by occupation of the target square, so the only valid reason that I can see to exclude this case is that the 2 pieces involved are both of the same color. Fabel's definition explicitly excludes "Monochrome RO". I conclude that it would be preferrable to interpret RO as a bi-chromatic interference. The keyword Retro opposition should be removed. (2018-04-07)
A.Buchanan: To my mind, RO involves some kind of parity-tempo issue between the sides, not just some kind of race-tempo. If it was just about "bi-chromatic interference", one might say that bPe4 blocks wBh7 from an immediate retreat, so it has to be wPf4 that retreats first, legitimizing the ep key. So I agree this is not RO. (2024-01-06)
more ...
comment
Keywords: Last Moves?, En passant as key
Genre: h#, Retro
FEN: nqb5/1rrpp1pB/KRp5/1p4B1/kN2pP1p/2P1P2P/PP2P2P/8
Reprints: D445 Retro-Opposition & Other Retro-Analytical Chess Problems 1989
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2024-01-06 more...
9 - P0003138
Branko Koludrovic
4208 Problem 12/1979
P0003138
(11+9)
h#3 (AP)
0.1...
1. ... axb6ep 2. 0-0-0 0-0-0 3. Td7 a8=D#
play all play one stop play next play all
This problem can be solved presuming that both castlings are executable. It implies that the last halfmoves have been.-1.Bb6xa7 sBb7-b5.
Bb5 could not come from c6 (sBc6xFb5), because all of the missing white pieces(5) have been captured on white squares except wLc1,which must have been captured by Bc7(Bc7xwLb6).Further,it has not played immediately before -1.Bb6-b5 because this would prevent white castling(forcing wT or wK to move)
Here is the proof that 4 remaining white pcs have been captured on white squares:
black d-pawn must have been captured on d4 and h,g f pawns had to promote after Bh3xwFg2,then wBh2moved to h4, enabling Bg4x Fh3 ..h1T, and finnaly sBf7
after fxg2... g1S. sLf1 prevented the check from Th1, and later has been captured by a white officer.
Conclusion:
Retro:-1.wBb6xFa7 Bb7-b5
Forward(AP) 1....axb6 e. p.2.0-0-0 0-0-0 3.Td7 a8Q# (Author)
Branko Koludrovic: P.S.
The black pawn a4(on the diagramm)came from c7 after capturing the white bishop on b6, then moving to b5 and capturing a white officer on a4. (2010-09-28)
A.Buchanan: I think sBf must have captured on g2 & then promoted on f1 to S, otherwise it’s impossible to unlock the southeast cage (2023-07-11)
A.Buchanan: So that means it’s sound. However I don’t see that it needs to have been sL shielding on f1 (2023-07-11)
more ...
comment
Keywords: a posteriori (AP), En passant as key, Castling (sgsgwg), Promotion (D), Valladao Task
Genre: h#, Retro
FEN: r3k3/P3p3/p7/Pp6/p6P/2P3PR/2PPP2b/R3K1nr
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-07-11 more...
10 - P0003189
Tivadar Kardos
2144 Diagramme und Figuren 19/09/1967
P0003189
(7+15) cooked
h#2
1. bxc3ep Lxe2 2. Sa3 0-0-0#
play all play one stop play next play all
Cook: 2. ... Td1#
Sally: Der letzte Zug war: Bc2 - c4!
Nr.138 200 Ausgewählte S .Probleme T. Kardos(W. Fentze1983) (2010-09-30)
A.Buchanan: All 9+1 captures are visible by pawns. Note R: 1. Kd1-e1 d3xe2 is illegal because it costs 2 more captures for Black. So e.p. is unconditionally legal, requiring no AP justification. I see no reason why White has lost castling rights. Indeed someone might make a demo game ending with c2-c4. So this one seems cooked. Neither WinChloe nor yacpdb contains this problem. (2022-01-08)
A.Buchanan: If this is AP, it will be rendered sound by removing wPa2. But is this the intention? Does anyone have access to the collection of selected Kardos problems mentioned? (2024-01-25)
more ...
comment
Keywords: En passant as key, Castling (wg)
Genre: h#, Retro
FEN: 8/8/3pp3/2ppp3/1pPkrq2/4pb1P/P3p1rP/Rn2KBb1
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-01-08 more...
11 - P0003206
Hans Joachim Schlüter
4443v Schach , p. 349, 11/1963
P0003206
(5+8)
h#2
b) wTf1 tauschen mit wLg1
a) 1. Kxb4 Lb6 2. a4 Tb1#
b) 1. cxb3ep gxf3 2. Sc1 Tg4#
play all play one stop play next play all
Korrektur 1964, Seite 155: sBh3->f3
Henrik Juel: C+ Popeye 4.61 (2022-11-24)
comment
Keywords: En passant as key
Genre: h#, Retro
FEN: 8/8/8/p7/kPp5/p1p2p2/4n1Pp/5RBK
Input: Gerd Wilts, 1995-06-03
Last update: Felber, Volker, 2022-11-24 more...
12 - P0003365
Gyula Bebesi
41 Problemas 04-06/1962
P0003365
(8+14) cooked
h#2
1) 1. axb3ep bxc6+ 2. b5 cxb6ep#
2) 1. exd3ep g8=D,L+ 2. d5 cxd6ep#
play all play one stop play next play all
PRA: 1 solution with 2 parts
Henrik Juel: White captured [sLc8] on c8 and axb, so last move was either b2-b4 or d2-d4
C+ Popeye 4.61, except for the promotion dual (2020-08-03)
A.Buchanan: There's no keyword for an untolerated dual promotion! (2020-08-03)
Henrik Juel: Yes and no, Andrew
What about the cooked label? (2020-08-03)
A.Buchanan: Hi Henrik: this is obviously intentional. I tried to replace the pawn promotion with wDh8-h7+ but I ran out of pieces. I guess that Bebesi had the same difficulty. The word "cooked" seems too strong to me, but it's obviously a significant defect though (2020-08-04)
A.Buchanan: The bar is higher for helpmates than other problems, and this is unsound. However it’s not cooked but dualled. Yet all we have is “cooked” so I suppose it is in PDB-speak. I’ve added that and removed the 2.1… (2023-08-07)
Joost de Heer: Is there an 'unsound' keyword? (2023-08-07)
A.Buchanan: Hi Joost: no there isn't. It can be added, the challenge for any new common keyword would be populating it for more than a few values. (2023-08-07)
A.Buchanan: This time round, I've managed to find a fix. Bebesi's correction in WinChloe 66992 has non-standard wL. I have a feeling I've seen a similar one by Andrey Frolkin & someone else recently with a different matrix, and also non-standard wL. I've sent my effort to Joaquim Crusats at Problemas for his assessment (2023-08-08)
more ...
comment
Keywords: En passant as key (2), Partial Retro Analysis (PRA), En passant as mating move (2), Superseded by (P1411659, P1413906)
Genre: h#, Retro
FEN: 3qn3/1p1p2P1/B1r3p1/1PP1Kp2/pPkPp3/p1p4n/N7/2b5
Reprints: 233 Ungarische Schachproblem Anthologie , p. 188, 1983
1 Problemas 44, p. 1456, 10/2023
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-12-04 more...
13 - P0003366
Laszlo Lindner
3040v Europe Echecs 07-08/1982
P0003366
(8+16)
h#2
b) sBc7 nach f6
a) 1. Dc4 Lxb6+ 2. c5 dxc6ep#
b) 1. fxe3ep Lxb4 2. Sc4 bxc3#
play all play one stop play next play all
Lindner in 'Mattbilder eines Lebens':
In a) ist die Lösung der stellung b) nicht möglich, weil das e.p.-Schlagen durch Schwarz nicht legal ist. Der letzte Zug von Weiß muß nicht unbedingt e2-e4 geweseb sein. Es kommt als letzter zug auch Kh3-g2 in Betracht, mit den vorherigen Zügen h4:g3 e.p.+ und g2-g4.
In b) demgegenüber sind Kh3-g2 und vorher f4:g3 e.p. illegal, weil die Rücknahme von g2-g4 unmöglich ist: der sB würde 7 Schlagfälle benötigen, und es fehlen nur 6 weiße Steine. Der letzte weiße Zug muß also e2-e4 gewesen sein.
In 'Mattbilder eines Lebens' abgedruckt mit sTh7 statt h8 und der Quellenangabe: Europe Echecs, 1964
AB: (1) Where is wK?
(2) Why is 1.fxe3ep legal in b) but not a)? (2002-01-31)
Henrik Juel: wK is probably on g2. In part a) last move could have been Kh3-g2, I think (2002-02-01)
A.Buchanan: Very convincing, Henrik. I've repaired the diagram accordingly. (2023-05-28)
comment
Keywords: En passant as key, En passant in the retro play
Genre: h#, Retro
FEN: 7r/2pn4/1nqRb3/B2Pp3/pb1kPp2/2p2Pp1/1PP2pKp/7r
Reprints: 501 Mattbilder eines Lebens , p. 379, 1996
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2023-05-28 more...
14 - P0003622
Janez Moder
Problem 07/1962
P0003622
(4+3)
h#2*
*) 1. ... 0-0 2. Dh4 Txf3#
1) 1. Kh4 Kf2 2. fxg2 Sf3#
play all play one stop play next play all
SCHRECKE: NL: 1. Dg5,Kh4 gxf3 2. Kh4,Dg5 Sf1# (2023-09-13)
Ladislav Packa: Retro content is not needed, the solution is preserved even without it.
Pg4 Pg2 Sh2 Ke1 Rh1 (5)- Ph5 Kg3 (2) h#2* C+

1...0-0 2.h5-h4 Rf1-f3 #
1.Kg3-h4 Ke1-f2 2.h5*g4 Sh2-f3 # (2023-09-14)
comment
Keywords: Cant Castler, Castling (wk)
Genre: h#, Retro
FEN: 8/8/8/8/6q1/5pk1/6PN/4K2R
Input: Gerd Wilts, 1995-06-03
Last update: hpr, 1997-05-07 more...
15 - P0003659
Maurice Jago
8202v Die Schwalbe , p. 148, 10/1980
version of cooked 8202 Die Schwalbe 08/1977
P0003659
(12+14) cooked
h#2
b) sBb4->b5
a) 1. Sf2 Dxf2+ 2. Kh1 0-0-0#
b) 1. Sb1 Ta4 2. Sxg3 Th4#
play all play one stop play next play all
Cook: 1. Txg3 0-0-0 2. La2/Lb3/Lc4 Dxh1#
1. La2/Lb3/Lc4 0-0-0 2. Txg3 Dxh1#
See P0000642
Mario Richter: Hier stimmt was nicht: In der Schwalbe 08/1977 erschien als Nr. 2202 die folgende Aufgabe: 8/Pp2p1p1/Bq1p3p/4p3/1p6/n4pP1/1PPPPr1k/R3KQ1n/; h#2, b) sBb4 nach b5 und der AL a) 1.Tf2-g2 0-0-0 2.Tg2xg3 Df1xh1#; b) 1.Sa3-b1 Ta1-a4 2.Sh1xg3 Ta4-h4#, die aber in a) und b) durch 1.f3xe2 La6xb7 2.Tf2-g2 Df1xg2# nebenlösig war.
Ferner ist in nebenstehendem Diagramm sowohl in a) als auch in b) sehr wohl die w0-0-0 möglich
(Weiß hat als letzten Zug Sc7-a8, Schwarz entwandelt auf b1 und h1, Weiß auf f8); und selbst unter der Annahme, daß die w0-0-0 nur mit sBb4 möglich sei, wäre die Aufgabe mehrfach nebenlösig, z.B. durch 1.Ld5-c4 0-0-0 2.Bd6-d5 Df1xh1# (2010-05-29)
A.Buchanan: Here, the source was incorrectly given as "8202v Die Schwalbe 08/1977". No, that was where the original problem appeared, with a "v" added. So when, as here, we suspect the diagram has a typo, we would have to look through many back issues of Die Schwalbe! It turns out that this correction (itself cooked) was published (as text) in p.148 Die Schwalbe 65 10/1980. I have corrected the source. The reference to the earlier buggy problem can then cleanly be put in the "after" field. The actual typo was missing bPc7. (2024-03-06)
A.Buchanan: With the typo fixed, I think the retro-logic works ok, but there is a single cook family, fortunately repairable (2024-03-06)
more ...
comment
Keywords: Cant Castler, Castling (wg), Superseded by (P1415606)
Genre: h#, Retro
Computer test: both twins cooked by Popeye v4.87
FEN: NBr5/N1p3p1/1qPpp3/2bb4/1p6/n1pP1rP1/1PP1P2k/R3KQ1n
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2024-03-06 more...
16 - 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?
See P0000899 a companion problem.
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)
VL: Nothing to do with Retro Strategy (nor with PRA). One definite castling is legal in every case. (2021-02-09)
Ladislav Packa: Cooked a) and b):
1...b8S and 2...R:h8# (2021-02-10)
A.Buchanan: I think the composer simply forgot that wPb7 can promote. Most of the cooks come from S promotions, but it's also possible to have QR. I've fixed it, rejigging the captures to make them still add up. I've posted in Discord, as I did with the partner composition, and will create entries for them here. (2022-03-15)
milan: +sLb8 sBa7=sT M.Frelih (2023-12-02)
A.Buchanan: Hi Milan - I don't think your suggestion quite works for b). In a) there are 0+2 spare captures, so Black can certainly cross-capture. But in b) there is 1+1 so neither side can cross-capture, so there is no solution. Please compare with P1399806, in which there are 1+2 & 2+1 spare captures, so both twins are sound. (2023-12-03)
milan: Hi Andrew my correction works only with 2.1... solutions, black or white knights on a5. are not important. (2023-12-03)
A.Buchanan: Hi Milan not really clear what you are doing, but if as well as the piece changes you proposed, you also change the stipulation to 2.1... then there is still only one solution. Even if you remove Sa5 entirely as well, there is no White cross-capture possible. (2023-12-04)
more ...
comment
Keywords: Castling (wgsk), Cant Castler (wgsk), Cross-capture (s,w), Superseded by (P1399806)
Genre: h#, Retro
Computer test: Popeye v4.87
FEN: 4k2r/pPp2p1R/n1pB1ppp/npP5/1P6/5PPP/2P2P2/R3K3
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-12-03 more...
17 - P0008219
Jozsef Korponai
6690 Probleemblad 09-10/1969
1. ehrende Erwähnung
P0008219
(12+7)
a) h#2
b) Last two single moves?
a) 1. Kxc5 h8=D 2. a1=T De5#
b) R: 1. a7-a8=S+ h2-h1=L
play all play one stop play next play all
Erich Bartel: Auszeichnung: 1.ehrende Erwähnung.--
Nachdruck: 1) Jaarboek 1970.-- (2006-11-26)
Henrik Juel: Something is wrong: De5 does not mate. And the intention certainly was not -1.S=a7 L=h2, 0... Kxc5 1.h8DL Kb6 2.DLd4#. (2006-11-27)
Erich Bartel: Ich habe die Aufgabe aus dem Jaarboek 1970 übernommen, wo
sie wie angegeben im Diagramm und Lösung so steht. Es
scheint also bereits hier ein Fehler vorzuliegen. Zur Klärung
ist es wohl notwendig in der Ur-Quelle Probleemblad -die ich
nicht besitze- nachzusehen. (2006-11-27)
Siegfried Hornecker: No matter how the position is changed, there can be no line where the king, coming from b6, is not allowed to return to b6 when the queen checks on e5. Also, there would be no reason to not play again 2.h2-h1~ as a waiting move.

The retroanalytics say that the last move must(!) have been 1.a7-a8S+ h2-h1L so I think the correct stipulation is:
a) Last move (w+s)
b) h#2

I have no source for this but if you think about it, the whole thing makes sense! The last move was 1.a8=S+ after 1.h1=L and from the diagram position the h#2 runs 2. Kxc5 h8=D 3. a1=T De5#. That's what I think. (2006-12-12)
Jan Hein Verduin: I got the Jaarboek too, and mr. Hornecker is right. The stipulation there is "h#2; what where the last w+b moves?" The way the solution then is given (the retro moves are given first) probably caused the confusion. (2007-01-26)
Adrian Storisteanu: Then, ceci n'est pas un ... retractor!? (2024-03-17)
Henrik Juel: Right, Adrian
The Help retractor keyword should be deleted (2024-03-17)
comment
Keywords: Allumwandlung, Last Moves? (2), Type C
Genre: Retro, h#
FEN: N7/1Bp4P/pkP5/p1R5/P7/P5P1/p1KNPPp1/7b
Input: Gerd Wilts, 1996-09-14
Last update: A.Buchanan, 2024-03-18 more...
18 - P0500421
Reto List
(5) Die Schwalbe 84 12/1983
3. ehrende Erwähnung
P0500421
(4+12) cooked
h#2
b) wSg2 nach h6
a) 1. Sh5 Tf4 2. Tg3 Txh4#
b) 1. Sf5 Lf3 2. Lg3 Lg4#
play all play one stop play next play all
Cook: NL a)
1. La1 Ka7 2. Lg4 Sf4#
1. Lg4+ Ka7 2. Lf4 Sxf4#
Kees: possible fix: +wBa7 +sSa5 (2023-06-07)
A.Buchanan: This fix certainly removes the cooks, but the twinning in the original problem feels clumsy. (2023-06-08)
comment

Genre: h#
FEN: K1b4q/6pr/3p1pp1/4b3/7p/3r2nk/5RN1/7B
Input: Gerd Wilts, 1996-06-06
Last update: Alfred Pfeiffer, 2019-04-26 more...
19 - P0500424
Valery Krivenko
4275v Die Schwalbe 80, p. 42, 04/1983
Lob
P0500424
(3+14)
h#3
4.1...
Weiter NL!
play all play one stop play next play all
klären Lösung
Anton Baumann: mögliche Korrektur: wLg2 nach h1, -sLf1, -sSa1, sBc7 nach f7 (3+12)
1.Kb6 Tg3 2.Ka7 Tg8 3.Tcb6 Ta8#
1.Ta6 Txc3+ 2.Kb6 Tc7 3.Lc5 Tb7#
1.Tb5 Td3 2.Db4 Txd6 3.Ld4 Txc6#
1.Kd4 Te3 2.Tc4 Txe5 3.Le3 Td5#
C+ Gustav 4.2a (2023-12-30)
comment

Genre: h#
FEN: 8/2p5/2rp1p2/p1k1p3/5q2/2p2R1K/5bB1/nrn2b2
Input: Gerd Wilts, 1996-06-06
Last update: hpr, 1999-05-17 more...
20 - P0501246
Vladislav Bunka
Vaclav Kotesovec

6326 feenschach 104 10/1992
P0501246
(2+11)
h#3
b) wLg7 statt wTg7
c) wSg7 statt wTg7
a) 1. Tg5 Tf7 2. e5 Ke7 3. Kf5 Txf6#
b) 1. Th5 Kxe7 2. Kg5 Ke6 3. Lf4 Lxf6#
c) 1. Kg5 Se8 2. Kh5 Kxe7 3. Tg5 Sxf6#
play all play one stop play next play all
There was an error in position, corrected.
Henrik Juel: C+ Popeye 4.61 also (2023-04-14)
more ...
comment
Keywords: Forsberg Twins, Minimal
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
FEN: 1b1K4/4p1R1/1n3pbq/2r5/4pkpn/8/8/8
Input: Gerd Wilts, 1996-06-06
Last update: Vaclav Kotesovec, 2023-04-14 more...
21 - P0501318
Peter Kniest
feenschach 12/1973
5. Lob
27. Thematurnier
P0501318
(3+4) cooked
h#4
1. Df8 Lf1 2. Le6 Se3 3. Dc5+ Sc4+ 4. Kd5 Lg2#

NL:
1. Df4 Lf1 2. Le6 Se1 3. Kd5 Sd3 4. Dd6 Lg2#
play all play one stop play next play all
Yuri Bilokin: correction bQf1-c1, then a1=b1 8/8/4k3/8/3B3p/2bK4/7N/2q5 (3+4) h#4

1.Qg5 Bg1 2.Bf6 Sf3 3.Qd5+ Sd4+ 4.Ke5 Bh2# (MM) (2023-05-24)
comment
Keywords: Interchange (LS (20))
Genre: h#
FEN: 8/8/8/4k3/2B3p1/1bK5/6N1/5q2
Input: hpr, 1996-06-14
Last update: hpr, 1999-05-22 more...
22 - P0501885
Mykola Nagnibida
2582 Gazeta Czestochowska 16/05/1979
P0501885
(3+9) cooked
h#3
1. Df5 Td4 2. Se6 Lc4 3. Df4 Td5#

NL:
1. Td4 Le4 2. Td6 Lg6 3. Sd5 Te4#
1. Dg8 Txe4+ 2. Kf5 Te8 3. Dg5 Le4#
play all play one stop play next play all
Yuri Bilokin: correction wKa4-b4, bPb7-f7, bPb6-e3, bPg4-f3, bPf4(-bSf4), -bBa7, then rotate 90 8/8/1pr1pp2/2qkrp2/3B4/4R3/4K3/8 (3+8) h#3
1.Qd6 Re4 2.Rc5 Be3 3.Qc6 Rd4# (MM)

Blocking piece replacement (bQ-bR)
Blocking piece replacement (bR-bQ)
Pelle move (white)
Place exchange (bQ/bR)
Place exchange (wR/wB)
Model mate × 1 (2023-05-19)
comment
Keywords: Interchange (TL ds)
Genre: h#
FEN: 8/bp6/1p2qr2/3Bk3/K1R1rnp1/8/8/8
Input: hpr, 1996-07-12
Last update: hpr, 1999-06-04 more...
23 - P0502606
John Niemann
521 Schachmatt 43 24/08/1947
P0502606
(6+4)
h#2
1. Sf7 Df3 2. 0-0-0 Db7# (0-0-0 + !)

UL!
play all play one stop play next play all
Anton Baumann: mögliche Korrektur: wBb4 nach b3, +sBd5, -wBg2
1.Sf7 Db4 2.0-0-0 Db7# (C+) (2024-01-03)
comment
Keywords: Castling
Genre: h#
FEN: r2nkn2/PQ6/P7/8/1P1K4/8/6P1/8
Input: hpr, 1996-07-23
Last update: hpr, 1999-06-05 more...
24 - P0502615
John Niemann
1716 FEENSCHACH 139 04/1953
P0502615
(5+5)
h#3
{ NL}
klären AL
SCHRECKE: Geplant war wohl:
1. Kd6 Lh2+ 2. e5 dxe6 e.p. 3. Ke7 Sd5#
Nebenlösungen, z.B.:
1. Df6 Kb4 2. De6 fxe6 3. Kd6 Lh2#
1. Kd7 Lh2 2. Sc7 Sc4 3. De8 Sb6# (2023-09-20)
comment

Genre: h#
FEN: 3bnq2/2k1p3/8/3P1P2/8/K3N3/8/6B1
Input: hpr, 1996-07-23
Last update: hpr, 1999-06-05 more...
25 - P0502616
John Niemann
2172 FEENSCHACH 178 05-06/1954
P0502616
(6+8)
h#2*
{ NL}
klären AL
SCHRECKE: Satz:
1. ... c8=T+ 2. Kd7 Le6#
Es lösen:
1) 1. Ld8 cxd8=T+ 2. Ke7 Lh4#
2) 1. Kd7 cxb8=D 2. Kc6 Dc7#
3) 1. Ld6 c8=D+ 2. Ke7 Lh4#
4) 1. Kf8 Lf4 2. De8 Lh6# (2023-09-20)
comment

Genre: h#
FEN: rq2k3/p1P1b3/p7/Pp3P2/1p6/1B4B1/8/7K
Input: hpr, 1996-07-23
Last update: hpr, 1999-06-05 more...
26 - P0502815
Shergil Sukhitashvili
1656 Gazeta Czestochowska 05/03/1974
P0502815
(9+12) cooked
h#2
4.1...
1) 1. Ld3 e3 2. Le2 e4#
2) 1. Se3 g3 2. Sg2 g4#
3) 1. Sg5 Lg8 2. Sf7 Lh7#
4) 1. Sf8 Txd6 2. Sg6 Lxe6#

NL:
1. Dg3 dxe5 2. Df4 Sg7#
1. Th1 dxe5 2. Sxe5 g4#
1. Ld3 exd3 2. De4 dxe4#
play all play one stop play next play all
Kees: I don't know how to send a diagram, but I fixed this one with a whole different position, but with the 4 thematic solutions I can send a FEN-notation with the 4 solutions

3K4/1pr1B1p1/s1pp2P1/2Rpk1S1/2Pb1sP1/3pPp2/4P3/3q1r2

1.Fc3 exd3 2.Fd2 d4‡
1.Ch3 exf3 2.Cf2 f4‡
1.Cxg6 Ff8 2.Ce7 Fxg7‡
1.Ch5 Txc6 2.Cf6 Fxd6‡ (2023-06-09)
comment
Keywords: Interchange (Bl,Bs,Ls)
Genre: h#
FEN: 4K3/2pr1B1n/3pp2p/3Rbk1N/3Pb1nP/5P2/4P1P1/4q1r1
Input: hpr, 1996-07-28
Last update: hpr, 1999-06-05 more...
27 - P0502958
Beni Snaider
9194v Tidskrift för Schack 03-04/1947
P0502958
(3+4) cooked
h#4
1. Kb5 Kf5 2. Kb6 Kg6 3. Kc7 Kf7 4. Kd6 Lh2#
play all play one stop play next play all
Cook: NL
1. Ta6 Sg8 2. Td6 Kf4 3. Kd5 Kf5 4. c4 Se7#
(KSp h)
Adrian Storisteanu: See P0502965 (failed correction attempt / self-anticipation). (2015-07-25)
milan: milan frelih:[Ke5 to h4 +bPh6] 1.Kb5 Kh5 2.Kb6 Kg6 3.Kc7 Kf7 4.Kd6 Bh2# (2015-07-26)
Yuri Bilokin: correction b1=a1, then wKd5-h4, -bPf7 8/8/1r2N3/1p6/1k5K/8/8/5B2 (3+3) h#4

1.Ka5 Kg5 2.Ka6 Kf6 3.Kb7 Ke7 4.Kc6 Bg2# (MM) (2023-05-24)
comment
Keywords: Figurenspiel
Genre: h#
FEN: 8/6p1/2r2N2/2p1K3/2k5/8/8/6B1
Input: hpr, 1996-08-30
Last update: Alfred Pfeiffer, 2015-07-25 more...
28 - P0503022
Claude Goumondy
Turnier des Tschechischen Sportbundes 1981-1982
1. Lob
P0503022
(6+6) cooked
h#2
b) wTe1 nach a4
c) sDe5 tauschen mit sSe4
d) sSg6 nach h4
a) 1. Ke6 Lxe4 2. Df6 Ld5#
b) 1. Kc5 Lxe5 2. Sd6 Ld4#
c) 1. Kxc6 Txe4 2. Sd7 Te6#
d) 1. Kd6 Txe5 2. Sc5 Te6#

NL:
d) 1. Ke6 Tf5 2. Sd6 Txe5#
play all play one stop play next play all
KSp
Kees: possible fix: +sLh8

What is KSp ? (2023-06-09)
comment
Keywords: Figurenspiel
Genre: h#
FEN: 8/8/2P3nK/3kq2R/4n1r1/5B1r/7B/4R3
Input: hpr, 1996-09-03
Last update: hpr, 1999-06-06 more...
29 - P0503162
Thomas R. Dawson
2322 Pittsburgh Sun 19/04/1924
P0503162
(5+8) cooked
h#3
1. Th1 Sa1 2. Th4 Sh1 3. Tf4 Sc2#
play all play one stop play next play all
Cook: NL
1. Tf1 Kh8 2. Tf2 Sa1 3. Df4 Sc2#
1. Df4 Sxa1 2. e1=L h6 3. Lf2 Sc2#
teilweiser Rundlauf t
Adrian Storisteanu: Possible fix: bPe4 (instead of the bQ), +wPf5, +bPf6 (6+9). (2015-08-15)
Yuri Bilokin: correction bRd3(-bNd3), bBe4(-bQe4), bPf3(-bBf3) 6K1/8/8/7P/3Pb3/pN1rkpN1/3pp3/r7 (5+8) (2022-12-19)
A.Buchanan: This is very clean Yuri well done. I would shift bPa3 to a5. wK must be exactly on g8, else the problem is cooked (2022-12-20)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 6K1/8/8/7P/3Pq3/pN1nkbN1/3pp3/r7
Input: hpr, 1996-09-05
Last update: Alfred Pfeiffer, 2015-08-15 more...
30 - P0503402
Laszlo Barna
3. Makuc-Moder-Gedenkturnier 03/1970
2. Preis
P0503402
(4+9) cooked
h#2
b) wSc8 nach c6
c) wSc8 nach e6
d) wSc8 nach e4
a) 1. Tf6 g8=D 2. Kc6 De8#
b) 1. Tc3 g8=L 2. Kc8 Le6#
c) 1. Te5 g8=S 2. Ke8 Sf6#
d) 1. Tc3 g8=T 2. Ke6 Te8#

NL:
1. Dh1 Sf6+ 2. Kd8 g8=D#
uvm
play all play one stop play next play all
KSp Königsstern
t/Allumwandlung, u/61104
Daniel Novomesky: Add bPh5. C+ (2008-03-03)
Yuri Bilokin: correction +bPh5 2N4K/3k2PR/6pq/2rp1rpp/8/8/b7/b7 (4+10)

Allumwandlung (white)
JT Onkoud 50 theme (double)
Promotion (QRBS, 4)
Star (bK)
Mates on the same square × 2 (2023-06-26)
comment
Keywords: Allumwandlung, Figurenspiel
Genre: h#
FEN: 2N4K/3k2PR/6pq/2rp1rp1/8/8/b7/b7
Reprints: feenschach , p. 58, 04/1975
Input: Erich Bartel, 1996-09-17
Last update: hpr, 1999-06-12 more...
31 - P0503578
Thomas R. Dawson
2254v Bolton Football Field 06/07/1912
P0503578
(6+3) cooked
h#3
1. Kc3 De6 2. Kxd4 Dxd6+ 3. Ke4 De5#

NL
1. Kc3 Df5 2. Tf8 Kxd6 3. Kxd4 Dd3#
play all play one stop play next play all
Korrektur Hilmar Ebert: +sSe8 (erhält Quasi-Symmetrie)
Yuri Bilokin: Not all pieces in quasi-symmetry are necessary: the white pawn on h2 is superfluous. It is clear that more than 100 years ago there was such a direction in art, although some authors indulge in technical white pawns in our time. (2022-12-19)
A.Buchanan: The technical term for such a position is "symmetric constellation". "Quasi-symmetry" is where the position is nearly symmetric but not quite (e.g. game array except wPa2 is missing). In a symmetric constellation any redundant piece is a definite defect. A quasi-symmetric position is not an ornament, more of a consequence of the content. For example, a number of last move type DD problems are quasi-symmetric (2022-12-20)
Yuri Bilokin: Thanks for the interpretation (2022-12-20)
comment
Keywords: Pure Round Trip (D)
Genre: h#
FEN: 8/4K3/3p1r2/4Q3/3P1P2/8/1k2P2P/8
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 2001-12-21 more...
32 - P0503698
Boris Gelpernas
3611 Problem 08/1974
P0503698
(3+6)
h#4
1. Sf3 Sxf4 2. Kd2 Se6 3. Ke3 Sxc7 4. Kf4 Sd5#

NL
1. Dc2 Kh4 2. f3 Kg3 3. Kd1 Kf2 4. Dc1 Se3#
play all play one stop play next play all
Yuri Bilokin: correction bSe4 1B6/2p5/8/3N1p1K/4np2/8/3n4/2k5 (3+6) h#4

1.Sf3 Sxf4 2.Kd2 Se6 3.Ke3 Sxc7 4.Kf4 Sd5# (IM)

Annihilation × 2
Areal cycle (wS, with captures, 4)
Crusader theme. Kniest theme
Long-trip (wS, 4)
Ideal mate
Battery mate. Double-check mate (2023-05-23)
comment
Keywords: Pure Round Trip (S)
Genre: h#
FEN: 1B6/2p5/8/3N1p1K/4qp2/8/3n4/2k5
Input: hpr, 1996-09-23
Last update: hpr, 1999-06-13 more...
33 - P0503880
Christer Jonsson
14139v Tidskrift för Schack 02/1982
P0503880
(4+5) cooked
h#4
0.2.1...
1) 1. ... Txb8 2. Kc5 Txe8 3. Lc3 Te5+ 4. Kb4 Tb5#
2) 1. ... Te5 2. Dd6 Txe8 3. Kc5 Tb8 4. Ld4 Tb5#

NL:
1. ... Tb6 2. Kc3 Sb5+ 3. Kb4 Sd6+ 4. Ka5 Sc4#
play all play one stop play next play all
Yuri Bilokin: correction +bNd2 1q2b2b/N7/8/1R6/3k4/pP6/3n4/7K (4+6)

AntiZielElement (W1, line obstruction)
Areal cycle (wR, with captures, 4) × 2
Exchange of moves (W1/W3)
JT Onkoud 50 theme
Long-trip (wR, 4) × 2. Many-ways (wR, 2) × 4
Zalokotsky theme (wR/wR, 3)
Model mate × 2.Mates on the same square × 2 (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 1q2b2b/N7/8/1R6/3k4/pP6/8/7K
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
34 - P0503926
Claude Goumondy
4104 Deutsche Schachzeitung 01/1980
P0503926
(3+9) cooked
h#4*
0.2.1...
1) 1. ... Lxb7 2. Le5 Lc8 3. Kd5 Lxd7 4. Ke4 Lc6#
2) 1. ... Th3 2. Ld2 Txh4 3. Kd3 Tf4 4. Ke3 Tf3#

NL:
1. ... Tf1 2. Kd3 Tf2 3. Sf3 Lb5+ 4. Ke3 Txe2#
play all play one stop play next play all
Yuri Bilokin: correction +bQg4, +bPa6, -bNh4, -bPh2 8/1b1p4/p1Bn4/8/2kp1bq1/5R2/4p3/7K (3+9) h#4 0.2.1…
1...Rg3 2.Bd2 Rxg4 3.Kd3 Rf4 4.Ke3 Rf3# (MM)
1...Bxb7 2.Be5 Bc8 3.Kd5 Bxd7 4.Ke4 Bc6# (MM)

Areal cycle (wB, with captures, 4)
Areal cycle (wR, with captures, 4)
Exchange of functions (wRf3/wBc6, Mate / Passive guard)
Long-trip (wB, 4). Long-trip (wR, 4)
Model mate × 2 (2023-05-08)
comment
Keywords: Pure Round Trip
Genre: h#
FEN: 8/1b1p4/2Bn4/8/2kp1b1n/5R2/4p2p/7K
Input: Hans-Jürgen Schäfer, 1996-09-23
Last update: hpr, 1999-06-20 more...
35 - P0503977
Leon Loewenton
H241 FIDE Olympia Turnier 14 Leipzig 1960
5. -9. Lob
P0503977
(6+5) cooked
h#2
5.1...
1) 1. f2 e8=S 2. Ld5 Txf2#
2) 1. Kd6 Tc2 2. Kc7 Le5#
3) 1. Kf6 e8=D 2. Kg7 Th2#
4) 1. Kf4 Th2 2. Kg3 Le5#
5) 1. Kd4 Le6 2. Kc3 Tb3#

NL:
1. Kxf5 e8=D 2. Kf6 Tb5#
play all play one stop play next play all
KSp Königsstern
Kees: Possible fix: +wBb4 -sLh1 (No 5.1... but 4.1... with only KSp Königsstern) (2023-06-05)
A.Buchanan: I agree with +wBb4 for soundness but let's keep sLh1. What's not to like about 5 well differentiated solutions? WinChloe has the same cooked diagram as we do here. (2023-06-06)
Yuri Bilokin: The fifth solution is not necessary, the author has kept it, so after adding the white pawn to the b4 square and without removing the black bishop, we fully preserve the author's intention.
8/4P3/1pP5/4kB2/1P6/4pp2/1R6/B2K3b (7+5) h#2 5.1...

Active sacrifice (black, delayed). BK moves only × 4. Delayed Umnov (bK-wB) × 2
Extended star (bK)
Promotion (QS, 2)
Battery mate × 3. Double-check mate. Mirror mate
Mate from initial bK square × 2 (2023-06-10)
more ...
comment
Keywords: Figurenspiel
Genre: h#
FEN: 8/4P3/1pP5/4kB2/8/4pp2/1R6/B2K3b
Reprints: H241 Schach 19, p. 301, 10/1960
Input: hpr, 1996-10-03
Last update: A.Buchanan, 2023-06-06 more...
36 - P0505568
Nadezhda Leontyeva
1315 Gazeta Czestochowska 21/03/1972
P0505568
(3+4) cooked
h#2
1. Tg5 Lg8 2. De5 Df7#

NL:
1. Kg7 Dd2 2. Kh8 Dh6#
play all play one stop play next play all
Yuri Bilokin: correction -bRf2, bRb5-d5 8/8/5k2/q2r4/8/1B6/Q7/7K (3+3) (2022-08-28)
comment
Keywords: Bahnung
Genre: h#
FEN: 8/8/5k2/qr6/8/1B6/Q4r2/7K
Input: hpr, 1996-12-27
Last update: hpr, 1999-07-24 more...
37 - P0506056
Jozsef Korponai
3214 Magyar Sakkelet 12/1964
P0506056
(6+5)
h#2
b) wBa5 nach e3
c) wBa5 nach d5
BSp
klären: Stellung falsch, wK im Schach!
Balsamo: The position is lacking a wLe1! (2001-12-21)
SCHRECKE: Mit wLe1 gibt es die Lösungen:
a) 1. Lf8 c4 2. Ld6 Se6#
b) 1. Da6 cxd3 2. Dd6 Sa4#
c) 1. Tg6 c3 2. Td6 Lf2# (2023-09-20)
comment
Keywords: Figurenspiel
Genre: h#
FEN: 4B3/8/7b/P1k5/5N2/q2p4/1NP5/2K3r1
Input: hpr, 1996-12-31
Last update: hpr, 1996-12-31 more...
38 - P0506163
Wenelin Alaikow
1965 diagrammes 87 10-12/1988
P0506163
(3+8) cooked
h#3
2.1...
1) 1. Da5 Tb5 2. Sd7 Tb6 3. Df5 Ld5#
2) 1. Da4 Lb5 2. Ld6 Lc4 3. Dd7 Te5#

NL:
1. Sa6 Txb5 2. Sc7 Tb6 3. Kd6 La4#
play all play one stop play next play all
Yuri Bilokin: Yuri Bilokin & Wenelin Alaikow correction a4=a1(-bPd), then +bPa4, +bPe5, +bPe6, bPg3-h2 8/8/4p3/4p3/pp2b3/2B1kn2/1q1R3p/1n1K4 (3+10) h#3 2.1...

1.Qa1 Bb2 2.Bd3 Bc1 3.Qd4 Re2#
1.Qa2 Rb2 2.Sd4 Rb3 3.Qf2 Bd2# (MM)
Ambush (wB). Ambush (wR). Anticipatory unpin
AntiZielElement (W1, line obstruction) × 2
Exchange of functions (wRd2/wBc3, Mating battery firing / Rear piece of mating battery + Line opening)
Play on the same square (W1, 2). Reciprocal batteries. Wigwag (bQ) × 2
Model mate × 1. Battery mate × 2. Double-check mate × 2 (2023-05-20)
comment

Genre: h#
FEN: 8/1p2b3/2B1knp1/1q1R4/1n1K4/3p4/8/8
Input: Markus Manhart, 1997-01-06
Last update: hpr, 1999-08-29 more...
39 - P0506581
Eduard A. Enkin
Mykola Nagnibida

207v Mat (Belgrade) 10/1972
P0506581
(9+10) cooked
h#2
b) wLb4
a) 1. Tb8 Th1 2. Tc8 Dh2#
b) 1. Tc8 Lb1 2. Tb8 Dc2#

NL:
a) 1. Kd6 Txf6+ 2. Ke7 Dxg7#
play all play one stop play next play all
Kees: Possible fix:Dd8-d7 Ld7-d8 +sSh8 -sLc1 -wBb2 h#1,5 ( a) 1. ...Th1 2.Tc8 Dh2# b) 1. ... Lb1 2. Tb8 2. Dc2#) (2023-06-05)
Gerald Ettl: Kees, das ist eine schlechte Verbesserung. Denn das Tempoverlustmanoever des sT ist hier eine wichtige Absicht des Autors, die beibehalten werden soll. (2023-06-05)
Ladislav Packa: White Rf7 Pg7 Qh7 Bg6 Pg5 Rh5 Pg4 Pb3 Pg2 Kg1 (10)
Black Ra8 Bd8 Bg8 Pb7 Kc7 Qd7 Pb6 Pc6 Pb4 (9)
b) bPc6-d6
C+ by Popeye v4.63 The author's idea is completely preserved. (2023-06-05)
A.Buchanan: I like Ladislav's fix a lot. I humbly suggest r2b2b1/1pkq1RPQ/1p1p2B1/6PR/3p4/8/4K3/6N1 saving two units. Some might say wSg1 is too passive for a White officer, but the way two units (bP & wK) block three rows is sufficiently amusing to offset this, imho. (2023-06-06)
A.Buchanan: The authors fixed it very well with P0523513 so any later fix is pointless. (2023-06-13)
more ...
comment
Keywords: Bahnung, Tempo Move (t t)
Genre: h#
FEN: r2q4/1pkb1RpQ/1p3nB1/6KR/1N4P1/5P2/1P1p4/2b5
Input: hpr, 1997-01-22
Last update: A.Buchanan, 2023-06-13 more...
40 - P0506988
Vaclav Gebelt
Problem 07/1981
2. Preis
59. Thematurnier
P0506988
(10+9) cooked
h#2
b) wLe1 nach h2
a) 1. Dxd5 Sd2 2. De4 Sd5#
b) 1. Txg4 Sg5+ 2. Te4 Sg4#

NL:
a) 1. Kd4 Sxd2 2. Sc3 Lf2#
play all play one stop play next play all
Vitaly Medintsev: Correction
5K1Q/p6p/4RN1p/2nP1Pr1/4N1P1/b3k3/1pPqp3/3rB3 (10+11)
b) SLe1 nach h2
white Be1 Kf8 Qh8 Pd5g4c2f5 Sf6e4 Re6 (10)
black Ba3 Ke3 Qd2 Pa7h7h6e2b2 Sc5 Rg5d1 (11)
b) BBe1 move to h2
Version by Vitaly Medintsev, October 1st 2014 (2014-10-01)
SCHRECKE: Medintsev: P1288792 (2022-10-30)
more ...
comment
Keywords: Bahnung, Fesselungsspiel (212 202 000)
Genre: h#
FEN: 5K1Q/7p/3nRN2/3P1Pr1/4N1P1/b3k3/1pPqn3/3rB3
Input: hpr, 1997-01-22
Last update: Alfred Pfeiffer, 2014-10-01 more...
41 - P0509111
Felix Seidemann
1428v The Chess Amateur 06/1929
P0509111
(3+9) cooked
h#3
1. Da6+ Ta5 2. Tb6 Tb5 3. Th6 Txg5#

NL:
1. De6 Txf7 2. Dg4 Tb5 3. g6 Txh7#
play all play one stop play next play all
Yuri Bilokin: correction wKa1-f1, wRb1-f2, bRb7-b6, +bBh1, +bNg2, -bPf7 8/1r4pp/7q/5Rbk/7p/6p1/5Rn1/5K1b (3+10) h#3
1.Qa6+ Rb5 2.Rb6 Rff5 3.Rh6 Rxg5# (MM)

Blocking piece replacement (bQ-bR)
Helledie theme
Hideaway (bQ, checking)
Loyd's clearance (black, bQ-bR, pure, 7, 6)
Model mate × 1 (2023-05-02)
comment
Keywords: Check Protection
Genre: h#
FEN: 1r6/5ppp/7q/5Rbk/7p/6p1/8/KR6
Input: Markus Manhart, 1997-06-27
Last update: hpr, 1999-10-17 more...
42 - P0509691
Didier Innocenti
360/12 Europe Echecs 12/1988
P0509691
(3+4) cooked
h#5
1. La7 Kg3 2. Kb6 Kf2 3. Kc5 Ke2 4. Kd4 Lh4 5. Lc5 Lf6#

NL:
1. Ld4 Kg4 2. Kb6 Kf4 3. Le5+ Ke3 4. Kc5 Kd2 5. Kd4 Lf2#
play all play one stop play next play all
Yuri Bilokin: possibly bPe4(-bBe4) 8/8/k7/3p4/4p2K/1P2b3/8/4B3 (3+4) (2023-01-11)
comment
Keywords: Check Protection
Genre: h#
FEN: 8/8/k7/3p4/4b2K/1P2b3/8/4B3
Input: Markus Manhart, 1997-06-26
Last update: hpr, 1999-10-18 more...
43 - P0509913
Paul Vatarescu
246 Problemas 09-12/1969
P0509913
(2+10) cooked
h#3
1. Kf8+ Df6+ 2. Sf7+ Kg6 3. Lc6 Df7#

NL:
1. Tc6 Kg4 2. Ke6 Kf4 3. Kd5 De5#
play all play one stop play next play all
Yuri Bilokin: correction bRb6-g8, +bQg3, +bNg4
3bb1rn/4k1p1/r5p1/6K1/2p3n1/5pq1/8/Q7 (2+12) h#3

1.Kf8+ Qf6+ 2.Sf7+ Kxg6 3.Bc6 Qxf7#

Active sacrifice (black, delayed)
AntiZielElement (B1, check)
Consecutive checks (3). Crosscheck (2)
Self-pin/self-unpin (white). Self-pin/unpin (white) (2024-02-09)
comment
Keywords: Check Protection
Genre: h#
FEN: 3bb2n/4k1p1/rr4p1/6K1/2p5/5p2/8/Q7
Input: Markus Manhart, 1997-06-28
Last update: hpr, 1999-10-19 more...
44 - P0510066
Sandor Boros
Blathy-Gedenkturnier 1940
1. -3. Preis geteilt
P0510066
(2+13) cooked
h#4
1. Sd7+ Kd5 2. La7 Kc4 3. Sc5 Kb4 4. Sb7 Sc7#

NL:
1. Sc4+ Kc7 2. Td8 Kxd8 3. Dc8+ Kxc8 4. La7 Sc7#
play all play one stop play next play all
Yuri Bilokin: correction rotate 90, theh -bNg5, bpe7-e4, bPb6-a5, +bPa3, +bPe3 8/8/3p4/pp6/4p3/p1Kbp3/r1nN1p2/k1qrb3 (2+14) h#4
1.Sb4+ Kd4 2.Bb1 Kxe3 3.Sd3 Ke2 4.Sb2 Sb3# (MM) (2022-12-15)
comment
Keywords: Check Protection
Genre: h#
FEN: kr6/4pp2/qnKp4/rNb5/b5p1/1p6/4n3/8
Input: Markus Manhart, 1997-06-27
Last update: hpr, 1999-10-19 more...
45 - P0510571
Tivadar Kardos
195 Feladvanykedvelök Lapja 03/1970
P0510571
(3+4) cooked
h#4
1. La1 Ke7 2. Sb2 Kf6 3. Sd3+ Kg5 4. Le5 Sd2#

NL:
1. Lc3 Kc7 2. Lb4 Lh2 3. Kd4 Sa3 4. Kc5 Lg1#
1. Kd3 Kc7 2. Kc4 Lh2 3. Ld4 Sa3+ 4. Kc5 Ld6#
play all play one stop play next play all
Yuri Bilokin: correction wKe8-f8, +bSb7, +bPg4, +bPh4 5K1b/1n6/8/3b4/n3k1pp/8/8/1N4B1 (3+7) h#4

1.Ba1 Ke7 2.Sb2 Kf6 3.Sd3+ Kg5 4.Be5 Sd2# (MM)

AntiZielElement (B2, line obstruction)
Corner-to-corner (bB)
Hesitation (bB)
Indian (black)
Model mate × 1 (2023-05-24)
comment
Keywords: Check Protection
Genre: h#
FEN: 3K3b/8/8/3b4/n3k3/8/8/1N4B1
Input: Markus Manhart, 1997-06-26
Last update: hpr, 1999-10-19 more...
46 - P0510656
Nikolay H. Dimitrov
Shakhmatna Misl 11/1966
1. ehrende Erwähnung
Bulgarian Chess Federation Ty
P0510656
(3+8) cooked
h#3
1. Ka3 Txd3 2. Dg2+ T8d5 3. Db2 Ta5#
play all play one stop play next play all
Cook: NL
1. Ka1 Tb8 2. Sd2 Txd3 3. Sd5 Ta3#
1. Sd4 Tb8 2. Dg4 Txb4+ 3. Ka1 Ta5#
Adrian Storisteanu: Possible fix (adjusted raised position): Kb8 Rd6 Rd8 / Kb3 Qg8 Rc2 Rc5 Sb4 Sb5 pp.d4 f7 (3+8) -- 1.Ka4 Rxd4 2.Qg3+ R8d6 3.Qb3 Ra6#. (2015-09-19)
Yuri Bilokin: correction wRd5-d7, bRc4-b6, bRc2-f6(-bPf6) K2R2q1/3R4/1r3r2/8/1n6/1n1p4/1k6/8 (3+7) h#3
1.Ka3 Rxd3 2.Qg2+ R8d5 3.Qb2 Ra5# (MM)

AntiZielElement (B2, check)
Bristol (white, wR-wR, impure, 4, 3)
Chernous theme
Self-pin/unpin (white)
Model mate × 1
Pin-mate (2023-05-02)
comment
Keywords: Check Protection
Genre: h#
FEN: K2R2q1/8/5p2/3R4/1nr5/1n1p4/1k6/2r5
Input: Markus Manhart, 1997-06-26
Last update: Marcin Banaszek, 2020-06-19 more...
47 - P0510848
Zivan Tiric
767v Mat (Belgrade) 06/1974
P0510848
(3+4) cooked
h#5
1. Lc5 d4 2. Df7 d5 3. Le7 d6 4. Se8 d7 5. Ke6 dxe8=S

NL:
1. Kg5 La6 2. Kg4 Ld3 3. Kh3 Kf3 4. Kh2 Le4 5. Kh1 Kg3#
1. Kg5 Lb7 2. Kg4 La8 3. Kh3 Lc6 4. Kh2 Kf3 5. Kh1 Kg3#
play all play one stop play next play all
Verstellung BL
Yuri Bilokin: possibly bQa7-f7, bBg1-e1, bNg7-d5, +bPa5, +bPg3 2B5/5q2/5k2/p2n4/4K3/6p1/3P4/4b3 (3+6) h#5
1.Sc7 d4 2.Bb4 d5 3.Be7 d6 4.Se8 d7 5.Ke6 dxe8=S# (2023-01-11)
comment
Keywords: Line closure, Excelsior white (auto key)
Genre: h#
FEN: 2B5/q5n1/5k2/8/4K3/8/3P4/6b1
Input: Andreas Mokosch, 1997-07-26
Last update: hpr, 1999-04-06 more...
48 - P0512001
Juri Olchowski
Evgeny Sorokin

442 Land og Folk 24/01/1971
P0512001
(3+2) cooked
h#3
1. Sc6 Ke3 2. Se5 Tc6+ 3. Kd5 Le4#

NL:
1. Kf6 Ke3 2. Kg6 Kf4 3. Kh5 Th2#
play all play one stop play next play all
Yuri Bilokin: correction wKd3-d2, wRc2-c1 8/n7/4k3/8/8/8/3K4/1BR5 (3+2) (2023-06-09)
comment

Genre: h#
FEN: 8/n7/4k3/8/8/3K4/2R5/1B6
Input: Markus Manhart, 1997-09-30
Last update: hpr, 1999-10-21 more...
49 - P0512005
Nikolay Ivanovsky
3745 Land og Folk 12/01/1980
P0512005
(3+2) cooked
h#3
1. Kf4 Td2 2. Ke3 Kg3 3. Le4 Lg5#

NL:
1. Kf4 Lb6 2. Kf3 Kh3 3. Le4 Tf2#
play all play one stop play next play all
Yuri Bilokin: correction wKh2-e2, wRe2-b2, wBd8-h1, bKf5-c5, bBa8-d2 8/8/8/2k5/8/8/1R1bK3/7B (3+2) h#3

1.Kc4 Ra2 2.Kb3 Kd3 3.Bb4 Bd5# (2023-06-09)
comment

Genre: h#
FEN: b2B4/8/8/5k2/8/8/4R2K/8
Input: Markus Manhart, 1997-09-30
Last update: hpr, 1999-10-21 more...
50 - P0512349
Josef Cumpe
2151 Teplitz-Schönauer Anzeiger 25/03/1934
P0512349
(3+3) cooked
h#3
1. Sc8 Kd5 2. Te7 Se6+ 3. Kd7 Sf6#

NL:
1. Kc8 Kb6 2. Kb8 Sa6+ 3. Ka8 Sc7#
1. Ta4 Sg7 2. Ta8 Kd6 3. Tc8 Se6#
play all play one stop play next play all
Yuri Bilokin: possibly a2=a1, then wNc6-f3, wNe7-g3 8/3k4/4n3/8/2K5/4rNN1/8/8 (3+3) h#3
1.Sc7 Kd4 2.Re6 Se5+ 3.Kd6 Sf5# (IM)

Blocking piece replacement (bS-bR)
Ideal mate (2022-12-31)
comment

Genre: h#
FEN: 3kN3/2N1n3/8/2K5/4r3/8/8/8
Input: Markus Manhart, 1997-09-30
Last update: hpr, 1999-10-21 more...
51 - P0512532
D. de Boer
286 Noord-Hollandsch Dagblad 19/02/1926
P0512532
(4+3) cooked
h#3
1. Kc4 Sg4 2. Lc3 d3+ 3. Kd4 Td6#
play all play one stop play next play all
Cook: NL
1. Kd4 Th5 2. a5 Kb5 3. a4 Td5#
Adrian Storisteanu: Possible fix: -bPa6, +wPb5 (5+2). (2015-08-15)
Yuri Bilokin: possibly wKb6 a7, -pPa6, +bNc5 7b/K7/5N1R/2n5/8/3k4/3P4/8 (4+3) (2022-12-28)
comment

Genre: h#
FEN: 7b/8/pK3N1R/8/8/3k4/3P4/8
Input: Markus Manhart, 1997-09-30
Last update: Alfred Pfeiffer, 2015-08-15 more...
52 - P0512942
Sergey Sinakevich
Yuri Fokin

2563 Problemista 136-139 01-04/1973
P0512942
(3+3) cooked
h#3
b) wSa1 nach b6
a) 1. Ld3 Sac2 2. Le2 Sd3 3. Sd2 Se3#
b) 1. Sd2 Sc4 2. Kc1 Sa3 3. Ld1 Sd3#
play all play one stop play next play all
Cook: NL:
a) 1. Kc1 Sg2 2. Lb1 Se3 3. Sb2 Sb3#
b) 1. Lh7 Sa4 2. Lc2 Sd3 3. Sd2 Sc3#
Yuri Bilokin: possibly +bPa4 8/8/K7/8/p1n5/8/2b5/N2kN3 (3+4) h#3 b) wNa1-a5
a) 1.Bd3 Sac2 2.Be2 Sd3 3.Sd2 Se3# (MM)
b) 1.Sd2 Sc4 2.Kc1 Sa3 3.Bd1 Sd3# (MM) (2022-12-31)
comment
Keywords: Aristocrat, Miniature
Genre: h#
FEN: 8/8/K7/8/2n5/8/2b5/N2kN3
Input: Markus Manhart, 1997-09-30
Last update: Marcin Banaszek, 2021-03-25 more...
53 - P0514864
Thomas R. Dawson
533 The Chess Problem (Whitburn) 26/06/1946
P0514864
(6+8) cooked
h#2
1. Kxe3 c5 2. Kd2 Sc4#

NL:
1. Td5 Lf5 2. Txe5 Sc2#
1. Lf3 S3g4 2. Lxe4 Lf2#
play all play one stop play next play all
Yuri Bilokin: correction bRd7-f7, bBg4-a4, -bN7 8/5r2/4p3/4N3/bKPkB2B/4N3/4p3/2nr4 (6+7) (2022-12-15)
A.Buchanan: The whole point of this ornamental problem is the symmetry. Any correction must preserve that. How about getting rid of the 2 rooks and the g-h-file bishops, then shift wBe4 to a4? 8/2n5/4p3/4N3/BKPk4/4N3/4p3/2n5? (2022-12-16)
Yuri Bilokin: I agree that the position should be symmetrical and economical, without unnecessary figures. The value of the positions reflected here is close to zero. (2022-12-16)
comment
Keywords: Sacrifice of white pieces, Symmetrical position
Genre: h#
FEN: 8/2nr4/4p3/4N3/1KPkB1bB/4N3/4p3/2nr4
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: hpr, 1999-10-24 more...
54 - P0514922
Thomas R. Dawson
4727 Stratford Express 14/04/1939
P0514922
(5+3) cooked
h#2
1. Sxe6 Sf3 2. Sg7 Tf8#

NL:
1. Sf7 exf7 2. Kg7 f8=D#
play all play one stop play next play all
Yuri Bilokin: correction wKa1-b2, then a2=a1 8/7R/4n3/4Pk2/4NPn1/8/8/1K6 (5+3) h#2
1.Sxe5 Sf2 2.Sg6 Rf7# (MM) (2022-12-15)
comment
Keywords: Symmetrical position
Genre: h#
FEN: 7R/4n3/4Pk2/4NPn1/8/8/8/K7
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: hpr, 1999-10-24 more...
55 - P0515072
Thomas R. Dawson
4056 Stratford Express 18/09/1937
P0515072
(4+5) cooked
h#2
1. d4 Sh6 2. Tg5 Ta6#
play all play one stop play next play all
Cook: NL:
1. d4 Kg8 2. Tf5 Ta6#
Adrian Storisteanu: Possible fix (a bit rough, but the wK is still employed):
Kg7 Ra1 Se6 Sf5 / Ke5 Rb4 Rd2 Sh8 pc4 pd3 (4+6)
1.c3 Sg5 2.Rf4 Ra5#. (2019-10-12)
A.Buchanan: Pushing wS to f8 & h6 seems to fix the cook. Maybe that's where they were meant to be all along: hard to imagine old TRD making such an error. WinChloe hasn't got this one, so can't confirm. (2019-10-14)
Adrian Storisteanu: Nice workaround, Andrew! Dawson had his share of cooks... (2019-10-14)
Yuri Bilokin: possibly wNf7-f5, bRe2-f2, -bPe4 7K/8/5kN1/1r1p1N2/8/8/5r2/R7 (4+4) (2022-12-16)
comment
Keywords: Symmetrical position, Asymmetrical solution, Superseded by (P1389169)
Genre: h#
FEN: 7K/5N2/5kN1/1r1p4/4p3/8/4r3/R7
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: A.Buchanan, 2021-05-02 more...
56 - P0515534
E. Rosinko
3820 Revista de Sah 01/1978
P0515534
(3+3)
h#2
2.1...
b) sLb5, sLf5
a) 1. Ke6 Kc5 2. Ke5 Te1#
a) 1. Kc6 Ke5 2. Kc5 Tc1#
b) 1. Lbd7 Tb1 2. Kc6 Tb6#
b) 1. Lfd7 Tf1 2. Ke6 Tf6#
play all play one stop play next play all
Henrik Juel: C+ Popeye 4.61 (also) (2023-02-27)
comment
Keywords: Symmetrical position, Miniature, Obvious promotion
Genre: h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/8/3k4/1p1N1p2/3K4/8/8/3R4
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: Rainer Staudte, 2023-02-27 more...
57 - P0515798
Yrjö Sten Iso-Puonti
408 Suomen Shakki 01/1934
P0515798
(3+4) cooked
h#2*
*) 1. ... Kc3 2. fxe6 Dd4#
1) 1. f4 Lf5 2. f6 Dc5#

NL:
1. fxe6 Kc3 2. Kd5 Dd4#
play all play one stop play next play all
Yuri Bilokin: correction wPc6(-bPc6), -bPf7, +bRd6 8/8/2PrB3/4kp2/8/8/1K6/6Q1 (4+3) h#2*
1...Kc3 2.Rxe6 Qd4# (MM)
1.f4 Bf5 2.Rf6 Qc5# (MM) (2022-08-28)
comment
Keywords: Sacrifice of white pieces, Symmetrical position
Genre: h#
FEN: 8/5p2/2p1B3/4kp2/8/8/1K6/6Q1
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: hpr, 1999-10-25 more...
58 - P0515841
Poul Rasch Nielsen
3931 Skakbladet 12/1934
P0515841
(3+3) cooked
h#2*
*) 1. ... Le3 2. Td3 De6#
1) 1. Tf5 Lf4 2. Tf3 Dc4#
play all play one stop play next play all
Cook: NL 1. Tc5 Lf4 2. Tf5 Dc4#
Adrian Storisteanu: Possible fix: +bPc5 (3+4). (2015-08-21)
Arno Tüngler: Mit sBf3 geht bei gleichem Satzsoiel nur 1. Tc5 Lf4 2. Tf5 Dc4# (2024-02-05)
comment
Keywords: Symmetrical position
Genre: h#
FEN: K7/8/8/8/4k3/1Qr2r2/8/2B5
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: A.Buchanan, 2024-02-03 more...
59 - P0516063
Jacobus Theodorus Sanderse
8293v FEENSCHACH 06/1967
P0516063
(2+5) cooked
h#7
1. f5 b4 2. f4 b5 3. f3 b6 4. f2 b7 5. f1=L b8=L 6. Lc4 Lxd6 7. Lcg8 Le5#

NL:
1. Le4 b4 2. Ld5 b5 3. Kg8 b6 4. Kf8 b7 5. Ke8 b8=D+ 6. Kd7 Ka6 7. Kc6 Dc8#
play all play one stop play next play all
Yuri Bilokin: correction wKa7-b1, +bNd1 7k/5p1b/3p4/8/8/8/1Pn5/1K1n4 (2+6) h#7

1.f5 b4 2.f4 b5 3.f3 b6 4.f2 b7 5.f1=B b8=B 6.Bc4 Bxd6 7.Bcg8 Be5# (MM)

Excelsior (black)
Excelsior (white)
Promotion (Bb, 1, 1)
Model mate × 1 (2023-05-10)
comment
Keywords: Symmetrical position, Promotion, Excelsior black (auto key), Excelsior white (auto key), Excelsior (sw)
Genre: h#
FEN: 7k/K4p1b/3p4/8/8/8/1Pn5/8
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: Rainer Staudte, 2014-06-21 more...
60 - P0516084
Nikolay Budkov
5229v Schach , p. 190, 06/1966
P0516084
(4+3) cooked
h#4
1. Kf5 Lh5 2. Sf7 Sc8 3. d5 Sd7 4. Ke6 Lg4#
play all play one stop play next play all
Cook: NL
1. Kh4 Sc6 2. Sc4 Sd4 3. Se5 Kg2 4. Sg4 Sf3#
Adrian Storisteanu: Possible fix: wKh1->a1, wSa7->b6. (2015-07-25)
Felber, Volker: Der Korrekturversuch aus der LB Seite 318 (wKa1-h1) reicht nicht aus. (2023-03-31)
comment
Keywords: Symmetrical position
Genre: h#
FEN: 1N2B3/N2p4/3n4/8/6k1/8/8/7K
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: Felber, Volker, 2023-03-31 more...
61 - P0516159
Evgeny Sorokin
Herta Cornel

1507 Feladvanykedvelök Lapja 09-10/1974
P0516159
(3+4) cooked
h#4
b) sDc6 tauschen mit sTb8, -sTf8
a) 1. Ke8 Sa7 2. Tbd8 La4 3. Dd7 Sb5 4. De7 Sd6#
b) 1. Kc7 Sd6 2. Kb6 Lc4 3. Kc5+ Kc3 4. Db6 Se4#

NL:
b) 1. Kc7 Sd6 2. Kb6 La4 3. Ka5+ Ka3 4. Ta6 Sc4#
1. Te6 Se7 2. Kc7 Kc4 3. Kd6 Kd4 4. Dc7 Sf5#
play all play one stop play next play all
Verstellung ScL

Doppelveröffentlichung
Yuri Bilokin: correction +bSb2 1rNk1r2/8/2q5/1B6/8/1K6/1n6/8 (3+5) h#4 b) bRb8?bQc6

a) 1.Ke8 Sa7 2.Rd8 Ba4 3.Qd7 Sb5 4.Qe7 Sd6# (MM)
b) 1.Kc7 Sd6 2.Kb6 Bc4 3.Kc5+ Kc3 4.Qb6 Se4# (MM)

AntiZielElement (B1, self-pin)
Long-trip (wS, 3). Many-ways (wS, 2)
Pelle move (black)
Self-pin/unpin (black)
Model mate × 2. Battery mate. Double-check mate (2023-05-24)
Yuri Bilokin: b) bRb8--bQc6 (2023-05-24)
comment
Keywords: Line closure
Genre: h#
FEN: 1rNk1r2/8/2q5/1B6/8/1K6/8/8
Input: Andreas Mokosch, 1997-07-25
Last update: hpr, 2012-06-01 more...
62 - P0516198
Elof Wikström
13830v Tidskrift för Schack 12/1979
P0516198
(3+4) cooked
h#4
1. Tf5 Lf6 2. De4 La1 3. Sd5 Sb2 4. Ke5 Sd3#

NL:
1. Sd5+ Ke6 2. Se3 Sd2 3. Tg7 Kf6 4. Tg4 Ld6#
1. De4 Sa5 2. Tf5 Lh4 3. Sd5 Lg5+ 4. Ke5 Sc6#
play all play one stop play next play all
Verstellung ScL
Yuri Bilokin: correction +bSa7, +bBb8 1b6/nqnKBr2/8/8/2N2k2/8/8/8 (3+6) (2023-05-24)
comment
Keywords: Line closure
Genre: h#
FEN: 8/1qnKBr2/8/8/2N2k2/8/8/8
Input: Andreas Mokosch, 1997-07-25
Last update: hpr, 1999-10-25 more...
63 - P0516267
Johannes Joensen
12185 Tidskrift för Schack 10/1966
P0516267
(3+4) cooked
h#4
1. Kc3 Sb7 2. Kc4 Ke3 3. Kd5 Kd2 4. Ke4 Sd6#

NL:
1. Lh8 Kxf4 2. Kd3 Lg2 3. Sc2 Se4 4. Ld4 Lf1#
1. Sc2 Lc6 2. Sh3 Kf3 3. Kd3 Se4 4. Ld4 Lb5#
play all play one stop play next play all
Verstellung SL

Als Autor ist in der 'Tidskrift för Schack' angegeben: Johannes Joensen, Haldorsvik
Yuri Bilokin: correction +bRb6, +bRg5, +bPg3, then rotate 90 8/3r1p2/4n3/3bK3/2N1n1k1/8/2r5/B7 (3+7) h#4

1.Kf3 Sb2 2.Ke3 Kf5 3.Kd4 Kg4 4.Ke5 Sc4# (MM)

BK moves only
Place exchange (bK/wK)
Rovno theme (bK/wK)
Switchback (wS, captureless, 1)
Model mate × 1
Battery mate (2023-05-24)
comment
Keywords: Interchange (Kk(5)), Line closure, Aristocrat, Miniature
Genre: h#
FEN: B7/8/3N4/4b3/3nKn2/8/3k4/8
Input: Andreas Mokosch, 1997-07-25
Last update: Mario Richter, 2023-05-24 more...
64 - P0516611

10547 British Chess Magazine 04/1973
P0516611
(4+5) cooked
h#4
1. b3 Ta1 2. b2 Lb8 3. b1=L Ta8 4. Lh7 Le5#

NL:
1. La1 Kc5 2. Kg7 Lf4 3. Kf6 Lxg5+ 4. Ke5 Te1#
1. Kg8 Ld6 2. b6 Kc6 3. Kf7 Tf1+ 4. Ke8 Tf8#
play all play one stop play next play all
Verstellung LpT
klären: autor?
Yuri Bilokin: correction +wPd4(-bBd4), +wPe3, +wPf2, +bPb6, +bPd5, +bPf3 7k/1p6/1p6/1K1p2p1/1p1P2P1/4Pp2/5P1B/7R (7+7) h#4
1.b3 Ra1 2.b2 Bb8 3.b1=B Ra8 4.Bh7 Be5# (MM)

Ambush (wR). Check prevention (W-B)
Corner-to-corner (wR) × 2
Herlin. Hesitation (wB)
Indian (white, pericritical). Promotion (b)
Model mate × 1. Battery mate. Double-check mate (2024-01-10)
comment
Keywords: Line closure
Genre: h#
FEN: 7k/1p6/8/1K4p1/1p1b2P1/8/7B/7R
Input: Andreas Mokosch, 1997-08-09
Last update: hpr, 1999-10-26 more...
65 - P0516866
Thomas R. Dawson
292 Funkschach 12/1925
P0516866
(8+6) cooked
h#3*
*) 1. ... Ld4 2. c3 Txc3 3. Ka1 Tc1#
1) 1. c3 a4 2. c2 Ta3 3. c1=L Le4#

NL:
*) 1. ... Td3 2. Kc2 Td1 3. c3 Lb3#
1. Kc1 Td3 2. Kc2 Td1 3. c3 Lb3#
play all play one stop play next play all
Verstellung TcL
Yuri Bilokin: possibly wPa2-a3 8/7p/6pr/1P1BP2b/2p4K/P6R/7P/Bk6 (8+6) (2022-12-19)
A.Buchanan: Yes looks like a typo (2022-12-20)
comment
Keywords: Line closure
Genre: h#
FEN: 8/7p/6pr/1P1BP2b/2p4K/7R/P6P/Bk6
Input: Andreas Mokosch, 1997-07-23
Last update: hpr, 1999-10-26 more...
66 - P0516877
Sigurd Jensen
1874 Land og Folk 20/12/1975
P0516877
(4+4) cooked
h#3
1. Sf5 Ta4 2. De3 Lb4 3. Kf4 Ld6#

NL:
1. De3 Txg5+ 2. Ke4 Lg3 3. Dd3 Te5#
play all play one stop play next play all
Verstellung LcT
Yuri Bilokin: possibly wRg4-h4 8/8/8/4k1p1/3n3R/8/6P1/2q1B2K (4+4) (2023-01-02)
comment
Keywords: Line closure
Genre: h#
FEN: 8/8/8/4k1p1/3n2R1/8/6P1/2q1B2K
Input: Andreas Mokosch, 1997-07-29
Last update: hpr, 1999-10-26 more...
67 - P0516901
Hermann Kahl
1108 Allgemeine Zeitung Chemnitz 12/10/1930
P0516901
(4+4) cooked
h#3
1. Kd4 Th5 2. Sc4 Lg5 3. Kc5 Le3#

NL:
1. Sa5 b7 2. Kxb5 b8=D+ 3. Ka4 Dxb4#
play all play one stop play next play all
Verstellung LcT
Felber, Volker: Im Original gibt es den wBb6 nicht, aber auch dort NL. (2014-12-19)
Felber, Volker: Korrektur 28.12.1930: +wBb6 (2014-12-20)
milan: m.j.frelih: original setting only one move solution,otherwise solution will be published next week! (2014-12-23)
milan: solution:wTb5 nach a5! (2014-12-29)
Yuri Bilokin: possibly wNb7-a5, -wPa6, -bNb2 8/3K4/8/nR6/1bk5/8/3B4/8 (3+3) (2023-01-02)
comment
Keywords: Line closure
Genre: h#
FEN: 8/1n1K4/1P6/1R6/1bk5/8/1n1B4/8
Input: Andreas Mokosch, 1997-07-29
Last update: hpr, 1999-10-26 more...
68 - P0516935
Josef Jana
439v Neues Grazer Tagblatt 20/11/1927
P0516935
(4+4) cooked
h#3
1. e1=D Lc7 2. Dxg3 Td6 3. Dg1 Td2#
play all play one stop play next play all
Cook: NL
1. Kg2 Ta6 2. Kf2 Le3+ 3. Ke1 Ta1#
Verstellung TcL
klären: autor J.Jana?
Frank Müller: In der Originalstellung fehlt der wKb8 und der Turm steht auf h7. Woher nebenstehende Fassung stammt, ist mir nicht bekannt. (2011-12-24)
Adrian Storisteanu: Possible fix: +wPe3 (5+4). (2015-08-16)
Yuri Bilokin: possibly wKb8-c7, wRh6-h5, bPe2-d1, then a1=a2 2K5/8/7R/5B2/6Pn/7k/3p3n/8 (4+4) h#3
1.d1=Q Bd7 2.Qxg4 Re6 3.Qg2 Re3# (MM) (2023-01-02)
comment
Keywords: Line closure
Genre: h#
FEN: 1K6/8/7R/8/5B2/6Pn/4p2k/7n
Input: Andreas Mokosch, 1997-07-23
Last update: Alfred Pfeiffer, 2015-08-17 more...
69 - P0516998
Felix Alexander Sonnenfeld
405 ? 10/1969
P0516998
(4+3) cooked
h#4
1. Kf6 La8 2. Ke7 Th7+ 3. Kd6 Tb7 4. Kd5 Td7#

NL:
1. e5 Th2 2. exd4 Ld5 3. Kf4 Tf2+ 4. Ke3 Tf3#
play all play one stop play next play all
Verstellung TcL
Klären Quelle
Yuri Bilokin: correction wKd1-a2, wBh1-g2, then a2=a1 8/8/8/4b3/6k1/2nP3R/8/K5B1 (4+3) h#4

1.Kf5 Ba7 2.Ke6 Rh6+ 3.Kd5 Rb6 4.Kd4 Rd6# (MM)

BK moves only
Hesitation (wR)
Indian (white)
Long-trip (wR, 3)
Model mate × 1. Battery mate. Double-check mate (2024-01-07)
comment
Keywords: Line closure
Genre: h#
FEN: 8/8/4p3/6k1/2nP3R/8/8/3K3B
Input: Andreas Mokosch, 1997-07-23
Last update: hpr, 1999-10-26 more...
70 - P0517279
Erwin Masanek
5047v Schach , p. 317, 10/1965
P0517279
(4+5) cooked
h#3
1. Tb7 Lb4 2. Da1 Ld1 3. Tb2 Sc3#

NL:
1. Tg3 Lc1 2. Da1 Lf7 3. Ta3 Sc3#
1. Tb7 Lc1 2. Da1 Lf7 3. Tb1 Sb4#
play all play one stop play next play all
F111
Verst-4
Felber, Volker: Die 'Verbesserung' reicht nicht. Original war wSe4 statt d5. (2023-02-21)
Rolf Wiehagen: C+ mit wLd2--a5, allerdings ohne die ws Linienöffnung bei 2. - La5-b4. (2023-02-21)
comment

Genre: h#
FEN: b6q/6r1/8/3N3B/8/8/k2B2r1/7K
Input: HBae, 1997-10-04
Last update: Felber, Volker, 2023-02-21 more...
71 - P0517281
Thomas R. Dawson
456v The Chess Problem (Whitburn) 23/01/1946
P0517281
(2+9) cooked
h#3
1. Lf5 Sf3 2. Sd3 Sg5 3. Lg7 Sf7#
play all play one stop play next play all
Cook: NL 1. Sd3+ Sf5 2. Th1 Sxh6 3. Lg7 Sf7#
Verst-4
Adrian Storisteanu: Possible fix: wSh4->b4, +bPh4 (2+10) -- 1.Bf5 Sc6 2.Sd3 Sd8 3.Bg7 Sf7#. (2015-08-26)
Yuri Bilokin: possibly bBb1-g6 6nk/7q/6bp/3Kn2r/3b3N/8/8/3r4 (2+9) (2022-12-19)
A.Buchanan: As well as bBb1-g6, one can shift bPh6-h7, i.e. removing bQ which serves no purpose (2022-12-20)
Yuri Bilokin: After correction, you can improve the efficiency (bPh6-h7), you can improve the sparsity (wNh4-b2). (2022-12-21)
A.Buchanan: I also wondered about shifting wSh4, but I thought it's good to have a knight start near to its destination square, because there are more convoluted paths for dual elimination, rather than pulling the line more taut. b4, b8 & e1 also work - it becomes a matter of taste. On balance I like Sh4 because it suggests 1. ... Sf5? unpinning the bS (2022-12-21)
more ...
comment

Genre: h#
FEN: 6nk/7q/7p/3Kn2r/3b3N/8/8/1b1r4
Input: HBae, 1997-10-18
Last update: A.Buchanan, 2022-12-20 more...
72 - P0517386
Thomas R. Dawson
2496 Teplitz-Schönauer Anzeiger 18/07/1937
P0517386
(3+7) cooked
h#2
1. 0-0-0+ Ld3 2. Ld7 La6#

NL:
1. Dg8/Db7/Dc7 Dxe6+ 2. Te7 Dg8#
1. Df8 Dd4/Dc7/Dd6/Dd5 2. Lf7 Dd7#
play all play one stop play next play all
Rochade
F135
Verst-4
Yuri Bilokin: correction bRh7-f7(-bQf7), bBa1-b6, -bPa7, +bSf4, +bSh6 r3k3/5r1B/1b2b2n/4Q3/5n2/8/8/3K4 (3+7) (2022-08-28)
comment
Keywords: Castling (sg)
Genre: h#
FEN: r3k3/p4q1r/4b3/4QB2/8/8/8/b2K4
Input: HBae, 1997-08-27
Last update: hpr, 1999-10-27 more...
73 - P0517577
David W. A. Brotherton
88v The Problemist 09/1966
P0517577
(3+4) cooked
h#4
1. Tg5 Kd2 2. Lf8 Se1 3. Tb5 Sc2 4. Lc5 Le6#

NL:
1. Td1+ Kf2 2. Kd3 Le6 3. Ld2 Kg3 4. Ke2 Lc4#
play all play one stop play next play all
Klären Autor
Verst-4

Original ohne sBg6 abgedruckt, Korrektur(versuch) 05/1967, S. 140
Als Autor ist angegeben: D.W.A. Brotherton
Yuri Bilokin: correction +bPg3 8/8/6pb/3r4/2k3B1/6p1/6N1/4K3 (3+5) (2023-05-24)
comment
Keywords: Miniature
Genre: h#
FEN: 8/8/6pb/3r4/2k3B1/8/6N1/4K3
Input: HBae, 1997-08-18
Last update: Mario Richter, 2021-01-31 more...
74 - P0517661
Karl Hasenzahl
228 Problemas 01-03/1957
P0517661
(2+10)
h#2
1. d1=T+ Le1 2. Td4 Lc3#
play all play one stop play next play all
Verst-4
klären Stellung
SCHRECKE: Unlösbar - wLb1 gehört vielleicht nach c2!? (2023-03-10)
HBae: habe korrigiert, auch das Datum war falsch (2023-03-10)
SCHRECKE: C+, popeye 4.87 (2023-03-10)
comment
Keywords: Promotion, Line closure, Minimal (L)
Genre: h#
FEN: 7b/6q1/3p4/6p1/5p2/4p1B1/p2p4/kb3K2
Input: HBae, 1997-06-23
Last update: Gunter Jordan, 2023-03-10 more...
75 - P0518470
Stanislav M. Tolstoi
? 1976
3. Preis
P0518470
(11+13)
h#3
2.1...
1) 1. dxc4 c7 2. Da8 Txa8 3. Lxa8 Dxa8#
2) 1. Lc5 dxc5 2. Ta1 Lxa1 3. Txa1 Dxa1#
play all play one stop play next play all
Quelle klären: Snamja???
SCHRECKE: C+, popeye 4.87 (2023-04-26)
comment
Keywords: Bahnung, Sacrifice of white pieces
Genre: h#
FEN: 6RQ/6BP/pPP1p3/3p1p2/2PPqPp1/b2p1b2/4PK1p/3rr2k
Input: Hans-Jürgen Schäfer, 1997-10-11
Last update: hpr, 1999-10-28 more...
76 - P0519109
Thomas R. Dawson
93v ? 30/10/1946
P0519109
(4+9) cooked
h#2
1. Tb3 a3 2. Kxa3 Dxa1#

NL:
1. De1 Dxd5 2. d2 Dxc4#
play all play one stop play next play all
klären Quelle ?
Bath+Welts Chronicle+Herald ?
Yuri Bilokin: correction wKg4-f4, -wPa6, bBd3(-bPd3), bNa7-c6, -bNa1, -bPd5 8/8/2n5/r7/kqpQ1K2/r2b4/P7/8 (3+7) (2022-12-15)
A.Buchanan: Any acceptable correction must surely retain the thematic symmetry? (2022-12-16)
A.Buchanan: Bath & Wells (not Welts) are two small neighbouring cities in the West of England which are kind of paired together. E.g. there is a Bishop of B&W (which it occurs for me might stand for Black & White, suggesting a thematic problem with a neutral bishop). (2022-12-16)
milan: +wPb3b5 1.T×b3 a3 2. K×a3 D×a1# simply correction M.Frelih (2022-12-18)
comment
Keywords: Symmetrical position
Genre: h#
FEN: 8/n7/P7/r2p4/kqpQ2K1/r2p4/P7/n7
Input: Hans-Jürgen Schäfer, 1997-09-01
Last update: hpr, 1999-10-28 more...
77 - P0519175
Mykola R. Vasyuchko
4515v Revista de Sah 03/1982
P0519175
(6+9) cooked
h#2
2.1...
1) 1. Lxd6 Lc6+ 2. Lb4 Sd3#
2) 1. Dxf4 Sc4 2. Dc7+ Lxc7#

NL:
1. Dxf4 Lf3+ 2. Db4 Sc4#
play all play one stop play next play all
Yuri Bilokin: correction Yuri Bilokin & Mykola R. Vasyuchko Exchange Qa4-Rc1, +bPd2 1k1K4/pB6/p2N4/p7/r4Nb1/b1r5/1R1p3B/2q5 (6+10) h#2 2.1…
1.Bxd6 Bc6+ 2.Bb4 Sd3#
1.Rxf4 Bf3+ 2.Rb4 Sc4#
Annihilation × 2
Exchange of functions (wSf4/wSd6, Captured / Mating battery firing)
Grimshaw (black)
JT Onkoud 50 theme
Play on the same square (B2, 2)
Zilahi (passive, SS, 2)
Pin-mate
Battery mate × 2 (2022-11-22)
comment
Keywords: Sacrifice of white pieces
Genre: h#
FEN: 1k1K4/pB6/p2N4/p7/q4Nb1/b1r5/1R5B/2r5
Input: Hans-Jürgen Schäfer, 1997-10-11
Last update: hpr, 1999-10-28 more...
78 - P0522777
Thomas R. Dawson
103v Deutsche Märchenschachzeitung 12/1931
P0522777
(6+7) cooked
h#3
1. f1=L Sa2 2. Lxe2+ Kxe2 3. d1=T Sxc3#
play all play one stop play next play all
Cook: NL 1. Td3 Sf4 2. Ld4 Sb3 3. Te3 Sxd2#
Doppelveröffentlichung
Adrian Storisteanu: Possible fix: -bPe5, +wPf4 (7+6). (2015-11-27)
Yuri Bilokin: possibly wNc1-a7 8/N7/8/4p3/p2rk1P1/P1b3P1/3pNp2/3K4 (6+7) (2022-12-19)
HBae: Bei dem Korrekturvorschlag von Adrian wäre auch -wPa3 +bPa3 möglich, C+ Popeye v4.37 (2022-12-20)
Yuri Bilokin: Yes, it's better
There is no need to strain yourself by dragging the white knight to the a7 square :) (2022-12-20)
comment
Keywords: Sacrifice of white pieces, Tempo Move (b(t))
Genre: h#
FEN: 8/8/8/4p3/p2rk1P1/P1b3P1/3pNp2/2NK4
Reprints: 3605 Falkirk Herald 09/05/1934
Input: Markus Manhart, 1998-02-10
Last update: Alfred Pfeiffer, 2015-11-30 more...
79 - P0524803
Shlomo Seider
9050 Schach-Echo 08/1976
P0524803
(9+10) cooked
h#4
b) wBg2 nach c2
a) 1. Sec2 Lde4 2. De1 d5 3. Ld2 d4 4. Se3 Ld3#
b) 1. Sxd3 Lfe4 2. Te1 f5 3. T2f1 f4 4. Sf2 Lf3#

NL:
b) 1. Sxd3 Lh3 2. Te1 Le4 3. Txf3 Lg2 4. Sf2 Lxf3#
play all play one stop play next play all
Gerald Ettl: Verbesserungsvorschlag 8/8/3p1p1p/4B1B1/4P1P1/1p2PbP1/1Pp1qkrP/1nK1bnr1
h#4
b) wBh2-d2
a) 1.Sfd2 Le5-f4 2.Df1 e5 3.Lf3-e2 e4 4.Sf3 Le3#
b) 1.Sxe3 Lg5-f4 2.Tf1 g5 3.Tgg1 g4 4.Sg2 Lg3#
C+ (2023-10-06)
comment
Keywords: Echo, Interchange (LBBdls,LBBtts)
Genre: h#
FEN: 8/8/8/3B1B2/3P1P2/p2PbP2/Pp1qkrP1/nK1bnr2
Input: Markus Manhart, 1998-02-16
Last update: hpr, 1999-11-04 more...
80 - P0525509
Gligor Denkovski
275v Novi Temi 01/1965
P0525509
(4+2)
h#2*
*) 1. ... Sc7 2. Kb6 Ta6#
1) 1. Tb5 Sc5 2. Kb6 Ta6#
play all play one stop play next play all
SCHRECKE: NL: 1. Kb5 Sc7+ 2. Kb6 Ta6#
Die NL hält das Satzspiel aufrecht. Man könnte es auch als 2. Lösung sehen. (2022-10-25)
comment
Keywords: Echo
Genre: h#
FEN: 8/1r6/N1kP4/8/R2K4/8/8/8
Input: Markus Manhart, 1998-02-16
Last update: Gerd Wilts, 2009-07-06 more...
81 - P0525799
A. Myrhang
13874v Tidskrift för Schack 04-05/1980
P0525799
(3+3) cooked
h#3
3.1...
1) 1. Lb6 Td4 2. Kb5 Le8+ 3. Ka5 Ta4#
2) 1. Kb6 Td8 2. Ka7 Ld5 3. b6 Ta8#
3) 1. Lc7 Td8 2. b6 Ta8 3. Kb7 Ld5#

NL:
1. b6 Td8 2. Kb7 Ld5+ 3. Ka7 Ta8#
1. Lc7 Ta5 2. b6 Ta8 3. Kb7 Ld5#
play all play one stop play next play all
Yuri Bilokin: correction wRd5-g5, wBe7-g6 8/1p6/2k3B1/b5R1/8/8/8/5K2 (3+3) h#3 3.1…

1.Bb6 Rg4 2.Kb5 Be8+ 3.Ka5 Ra4# (MM)
1.Kb6 Be4 2.Ka7 Rg8 3.b6 Ra8# (MM)
1.Bc7 Ra5 2.b6 Ra8 3.Kb7 Be4# (MM)

Ambush (wB)
Many-ways (wR, 2)
Play on the same square (B1, 2)
Model mate × 3 (2023-06-09)
comment
Keywords: Echo
Genre: h#
FEN: 8/1p3B2/2k5/b2R4/8/8/8/5K2
Input: Markus Manhart, 1998-02-16
Last update: hpr, 1999-11-04 more...
82 - P0526147
Andris Virtmanis
5308 Schach , p. 285, 09/1966
P0526147
(7+16)
h#2
b) sBg5 nach h5, -sBf6
a) 1. Df4 Sh4 2. Sd3 Sxf6#
b) 1. Te4 Lh4 2. Sd5 Sde5#
play all play one stop play next play all
Beim Original fehlte der Hinweis zu b) -sBf6 der auf Seite 347 ergänzt wurde.
Felber, Volker: Bei der Erfassung der Aufgabe wurde der sBe2 nicht berücksichtigt. Aufgabe ist nach dessen Ergänzung korrekt und die Fehlerhinweise habe ich gelöscht. (2023-04-15)
Henrik Juel: C+ Popeye 4.61 also (2023-04-15)
comment
Keywords: Fesselungsspiel (238 404 422)
Genre: h#
Computer test: Gustav 4.1d
FEN: 2BK1b2/2PN2n1/p3rpN1/5qp1/Rn4k1/1pp4p/b1prpB2/8
Input: Markus Manhart, 1998-03-01
Last update: Felber, Volker, 2023-04-15 more...
83 - P0526556
Gerhard Paul Latzel
Länderkampf Deutschland-Israel 1978
1. Platz
P0526556
(7+10) cooked
h#2
2.1...
1) 1. Sd6 b3 2. Lh4 Txf5#
2) 1. Sd5 a4 2. Lc8 Lxe7#

NL:
1. Txg1 Txc3 2. Ld6 Txf5#
1. Th4 Dh2 2. Sb1 De5#
play all play one stop play next play all
Yuri Bilokin: misprint bQg1 r4B1K/4b3/1pp5/2k2b1R/2np4/P1n5/1P6/2R3qr (6+11) Analogy (complete) (2022-12-02)
comment
Keywords: Fesselungsspiel (258 404 422)
Genre: h#
FEN: r4B1K/4b3/1pp5/2k2b1R/2np4/P1n5/1P6/2R3Qr
Input: Markus Manhart, 1998-03-01
Last update: hpr, 1999-11-05 more...
84 - P0526640
Nikolai P. Selepukin
165 Novi Temi 07-08/1972
P0526640
(3+8) cooked
h#3
3.1...
1) 1. f3 Ta5 2. Tf4 Lb5 3. Kh5 Le8#
2) 1. Te6 Ta8 2. Tf6 Lc4 3. Kg7 Tg8#
3) 1. Se3 Lc4 2. Kg7 Tg2+ 3. Kh8 Tg8#

NL:
1. Te3 Ta5 2. Ta3 Lb5 3. Kh5 Le8#
1. Kh5 Ta7 2. Te8 Tg7 3. Tb8 Lxg4#
uvm
play all play one stop play next play all
Yuri Bilokin: correction bSg4-d1 8/7p/6kp/8/3prp1n/8/R3B3/3nK3 (3+8) h#3 3.1…
1.f3 Ra5 2.Rg4 Bb5 3.Kh5 Be8# (MM)
1.Se3 Bc4 2.Kg7 Rg2+ 3.Kh8 Rg8# (MM)
1.Re6 Ra8 2.Rf6 Bc4 3.Kg7 Rg8# (MM) (2023-05-20)
comment
Keywords: Fesselungsspiel (313 000 330)
Genre: h#
FEN: 8/7p/6kp/8/3prpnn/8/R3B3/4K3
Input: Markus Manhart, 1998-03-01
Last update: hpr, 1999-01-26 more...
85 - P0528763
Fadil Abdurahmanovic
Probleemblad 05-06/1966
1. - 2. Preis
117. Thematurnier
P0528763
(7+7) cooked
h#2*
*) 1. ... Lf4 2. gxf4 Tg7#
1) 1. f4 Lxf4 2. gxf4 Tg7#

NL:
1. fxg2 La6 2. Kf3 Lxe2#
play all play one stop play next play all
klären Satz UL verdruckt ?
VL: Represented by the author (in an article with M.Klasinc) in The Problemist, July 2017, p.128 (C) in the sound form with 5 additional pieces: 2B5/1p1R4/bp1P4/1p2Bpp1/1P4kb/4ppN1/4p1P1/4K3. Set: 1...Txb7 2.Lxb7 (tempo) Lxf5# and "hidden zugzwang": 1.f4 ?? 2.fxg3 Th7# and 1.f4 Lxf4 2.?? Tf7#. (2023-04-07)
comment
Keywords: Sacrifice of white pieces, Reihen-Echo
Genre: h#
FEN: 2B5/3R4/3P4/4Bpp1/6kb/4ppN1/4p1P1/4K3
Input: Hans-Jürgen Schäfer, 1998-03-11
Last update: hpr, 1999-11-06 more...
86 - P0530545
Gyula Bebesi
1509 Feladvanykedvelök Lapja 09-10/1974
P0530545
(2+12) cooked
h#6
b) sSh7 nach f5
a) 1. Kc7 Dc8+ 2. Kd6 Dxh3 3. Ke5 Dh4 4. Kf5 Dxe7 5. Kg4 Dxe8 6. Kh3 Dh5#

NL:
1. Kc7 Dc8+ 2. Kd6 Dxh3 3. Kd5 Dxg3 4. f2+ Dxf2 5. Ke4 Da2 6. Kf3 Dxg2#
play all play one stop play next play all
Yuri Bilokin: correction bPa4-a5, +bNe1 Q3b3/1k2b2n/2p5/p7/5p2/4pppp/6p1/4n1K1 (2+13) h#6 b) bNh7-f5
a) 1.Kc7 Qc8+ 2.Kd6 Qxh3 3.Ke5 Qh4 4.Kf5 Qxe7 5.Kg4 Qxe8 6.Kh3 Qh5#
b) 1.Kb6 Qb8+ 2.Kc5 Qxf4 3.Kd5 Qxg3 4.Ke4 Qg7 5.Kf4 Qxe7 6.Kg3 Qg5#

Amazon theme × 2. Annihilation × 3
Azemmour 7 theme (white monopoly, black monopoly)
BK moves only × 2. Chumakov theme (p-p, simplified, 2, 2). Delayed Umnov (wQ-bK)
Exchange of functions (bPg3/bPh3, Captured / Passive self-block)
Hesitation (wQ). Kniest theme × 2
Long-trip (wQ, 6) × 2. Many-ways (wQ, 2) (2024-02-09)
comment

Genre: h#
FEN: Q3b3/1k2b2n/2p5/8/p4p2/4pppp/6p1/6K1
Input: Ralf Krätschmer, 1998-03-01
Last update: hpr, 1999-11-07 more...
87 - P0531421
Thomas R. Dawson
1796 The Problemist Fairy Chess Supplement 02/1935
P0531421
(4+4) cooked
h#2
b) sTd7 nach e7, sTh3 nach h4
a) 1. Kg5 Tg2+ 2. Kh4 Tg4#
b) 1. Kxg7 Tg2+ 2. Kf8 Tg8#

NL:
a) 1. Kg5 Tg2+ 2. Kh4 Shf5#
play all play one stop play next play all
klären Monat
Alfred Pfeiffer: No.1796 ist aus 04/1935 (vgl. P0003272) (2011-01-11)
Yuri Bilokin: possibly bBe4(-bNe4), +bPd3 8/3r2N1/6kN/8/4b3/3p3r/2R5/1K6 (4+5) (2022-12-16)
comment
Keywords: Sacrifice of white pieces, Symmetrical position, Aristocrat, Aristocrat
Genre: h#
FEN: 8/3r2N1/6kN/8/4n3/7r/2R5/1K6
Reprints: 1796 The Problemist Fairy Chess Supplement 04/1935
Input: Ralf Krätschmer, 1998-03-30
Last update: Arnold Beine, 2022-12-17 more...
88 - P0531584
Drago Biscan
2281 Shakhmatna Misl 04/1987
P0531584
(9+9) cooked
h#2
3.1...
1) 1. Txc4 e6 2. Ld6 Txc4#
2) 1. Lxe5 Tf5 2. e2 Txe5#
3) 1. bxc5 Sd3 2. Sb6 Sxc5#

NL:
1. Lxe5 Txg3 2. Lh8 Tg4#
ua
play all play one stop play next play all
NL klären Stimmt Stellung?
Ladislav Packa: +wPg4, C+ (2024-02-04)
comment
Keywords: Sacrifice of white pieces
Genre: h#
FEN: n7/2p5/1pP5/1PR1P1R1/2Prkb2/4p1p1/2p3P1/2K1N3
Input: Ralf Krätschmer, 1998-03-30
Last update: hpr, 1999-01-17 more...
89 - P0533723
Rudolf A. Pieprzyk
223 Problemista 02/1964
(4. Platz wurde annulliert)
IV Schlesischer Problemistenkongress
Blitzthematurnier 17.11.1963
P0533723
(3+4) cooked
h#3
1. Kc4 0-0-0 2. Lb4 La6+ 3. Kc3 Txd3#

NL:
1. c5 0-0-0 2. Ka2 Txd3 3. Ka1 Ta3#
1. Kc3 La6 2. Lb4 0-0-0 3. c5 Txd3#
play all play one stop play next play all
Auszeichnung wurde in Problemista 04/1964 annulliert.
Yuri Bilokin: correction wBc8-e8, bKb3-d4, bBf8-e3, bPc7-f7, +bQa6, -bPd3 4B3/5p2/q7/8/3k4/4b3/8/R3K3 (3+4) h#3

1.Kc3 Bb5 2.Bc5 0-0-0 3.Bb4 Rd3#

Castling (white, long) (2023-06-10)
comment
Keywords: Castling (wg)
Genre: h#
FEN: 2B2b2/2p5/8/8/8/1k1p4/8/R3K3
Input: Andreas Mokosch, 1997-09-11
Last update: Marcin Banaszek, 2019-11-15 more...
90 - P0533734
Leon Loewenton
10210 The Fairy Chess Review 04/1955
P0533734
(10+10)
h#4
b) wBb3 nach b2
a) 1. Kf8 0-0-0 2. Kg8 Tf1 3. Kh8 Tf5 4. Tg8 Txh5#
b) 1. 0-0-0 Ta3 2. Kb8 Tb3 3. Ka8 Tb5 4. Tb8 Txa5#
play all play one stop play next play all
SCHRECKE: NL in b):
z.B.: 1. Ke7 Tb1 2. Ke6 d3 3. Kd5 dxe4+ 4. Kc4 b3# (2022-11-14)
HBae: Mögliche Korrektur sBd6 nach d3, ohne wBe2 (9+10 (2022-11-14)
HBae: Mit der (berichtigten) oben genannten Korrektur ist das Problem C+ gemäß Popeye v4.37. Die lange weiße Rochade ist nur in a) erlaubt. (2022-11-14)
more ...
comment
Keywords: Castling (sg), Castling (wg)
Genre: h#
FEN: r3k3/1p3pp1/3p4/p1p4p/P3p3/1PP4P/2RPP1P1/R3K3
Input: Andreas Mokosch, 1997-09-14
Last update: HBae, 2022-11-14 more...
91 - P0534198
Herbert Hultberg
2565v Eskilstuna-Kuriren 22/09/1937
Frans Hansson gewidmet
P0534198
(8+5) cooked
h#3*
2.1...
*) 1. ... 0-0-0 2. Kf6 Tf1+ 3. Ke7 Txf7#
1) 1. Tc7 0-0 2. Kd6 Tad1 3. Ke7 Tf7#

NL:
*) 1. ... g3 2. Tf5 0-0-0 3. Tf6 Te1#
1. Ke4 0-0-0 2. Ke3 Td2 3. Tf4 Te1#
play all play one stop play next play all
Yuri Bilokin: possibly -wPa2, -wPb6, wPh2-h3, bR7-a3, +bQf7, +bPb5, +bPb7, +bPg3 4n3/1p3q2/4r1P1/1p2k3/b7/r5pP/6P1/R3K2R (6+9) h+3 2.1…

1.Rb3 0-0-0 2.Kf6 Rhf1+ 3.Ke7 Rxf7#
1.Qc7 0-0 2.Kd6 Rad1+ 3.Ke7 Rf7#

AntiZielElement (B1, guard). Castling (white, long). Castling (white, short)
Check prevention (W-W) × 2. Delayed Umnov (bQ-wR)
Hideaway (bQ). Many-ways (bK, 2)
Epaulette mate × 2 (2023-08-23)
comment
Keywords: Castling (wb)
Genre: h#
FEN: 4n3/1p3r2/1P2r1P1/4k3/8/8/P5PP/R3K2R
Input: Andreas Mokosch, 1997-10-17
Last update: Rainer Staudte, 2019-08-11 more...
92 - P0534722
Thomas R. Dawson
2828v Stratford Express 15/12/1934
P0534722
(5+7)
h#2
b) alles eine Reihe tiefer
a) 1. g2 Ta6 2. g1=T Tf2#
b) 1. Ke5 0-0-0 2. Ke4/Lf6 Te1#

NL in a)
1. Kf8 Sf4 /Sg7 2. Sf7 Se6#
1. Kf8 Tf2+ 2. Lf7 Ta8#
play all play one stop play next play all
Dual in b)
Yuri Bilokin: possibly bRe8(-bBe8), +bNc7, +bPg6 4r1rn/2n1pk2/6p1/7N/6P1/6pp/R3K2R/8 (5+9) h#2 b) alles eine Reihe tiefer
a) 1.g2 Ra6 2.g1=R Rf2#
b) 1.Ke5 0-0-0 2.Ke4 Rhe1# (MM) (2022-12-16)
comment
Keywords: Castling (wkwkwk)
Genre: h#
FEN: 4b1rn/4pk2/8/7N/6P1/6pp/R3K2R/8
Input: Andreas Mokosch, 1998-02-18
Last update: hpr, 1999-04-04 more...
93 - P0537646
Evgeny A. Vaulin
2092 Probleemblad 1992
P0537646
(5+14)
h#2
b) CIRCE
c) Madrasi
d) Patrouilleschach
a) 1. Sd6 Lc3 2. Dd5 Le1#
b) 1. Dxe5[+wLc1] Lxe3 2. Tf4 Lf2#
play all play one stop play next play all
SCHRECKE: a)-d): C+, popeye 4.87
a) 1. Tf4+ Sxg5 2. Te4 Sxf3# (korrigiert)
b) 1. Dxe5[+wLc1] Lxe3 2. Tf4 Lf2#
c) 1. Sd6 Lc3 2. Dd5 Le1#
d) 1. Tf8+ Lf6 2. Lg3 Lxg5# (2023-03-06)
comment
Keywords: Circe, Madrasi, Patrol Chess
Genre: Fairies, h#
FEN: bb6/4K2n/4Brpp/2p1B1qp/2n4k/r3pp1N/4P3/8
Input: Michal Dragoun, 1998-04-07
Last update: HBae, 2017-09-15 more...
94 - P0538052
Evgeny A. Vaulin
6191 feenschach 1991
P0538052
(7+8)
h#2
b) CIRCE
c) Madrasi
d) Patrouilleschach
a) 1. Dh8 Sf4 2. Dh5 Sxg2[+sBg7]#
b) 1. Lf4 Sxd4[+sTh8] 2. Th5 Sxf3[+sBf7]#
c) 1. Dh8 Sf4 2. Dh5 Sxg2#
d)
play all play one stop play next play all
klären : Lösung d?
SCHRECKE: a)-d): C+, popeye 4.87
a) 1. Th6+ Sxg5 2. Th5 Sxf3# (korrigiert)
b) 1. Lf4 Sxd4[+sTh8] 2. Th5 Sxf3[+sBf7]#
c) 1. Dh8 Sf4 2. Dh5 Sxg2#
d) 1. Lf4 Kxf6 2. Kh5 Kg5# (2023-03-06)
comment
Keywords: Circe, Madrasi, Patrol Chess
Genre: Fairies, h#
FEN: q7/3BK3/3PNr2/6b1/3rP2k/4pp2/4P1pP/8
Input: Michal Dragoun, 1998-04-07
Last update: HBae, 2017-09-15 more...
95 - P0538309
Mark Erenburg
FIDE Tagung 1996
2. Preis
P0538309
(6+12)
h#2
b) Pao a4
a) 1. Db3 cxb3 2. Ld2 Dc2#
b)
play all play one stop play next play all
klären Zwibi
Anton Baumann: b) 1.Sf4 e6 2.Tc4 Sxc3#
C+ Alybadix (2023-09-12)
comment

Genre: Fairies, h#
FEN: 8/3p4/3Kn3/p1QNP2p/Rb1rk3/p1q2n2/2P1r3/5b2
Input: Michal Dragoun, 1998-04-07
Last update: hpr, 1999-11-09 more...
96 - P0538310
Kjell Widlert
Bernd Ellinghoven

FIDE Tagung 1996
3. Preis
P0538310
(6+8)
h#2
b) Vao a6, Vao b3
a) 1. Lc4 Ke3 2. Ke6 Kf4#
b)
play all play one stop play next play all
Anton Baumann: b) 1.VAd3 Te2 2.Sc4 VAc2# (2023-12-18)
comment

Genre: Fairies, h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 3q4/1n3p2/b2r1N2/5kB1/7P/1B3p2/1n3K2/4R3
Input: Michal Dragoun, 1998-04-07
Last update: hpr, 1999-01-03 more...
97 - P0538311
Bernd Ellinghoven
Klaus Wenda
Kjell Widlert

FIDE Tagung 1996
Spezialpreis
P0538311
(8+10)
h#2
2.1...
b) Pao b3, Vao c2
a1) 1. Ld3 hxg4 2. Tc4 Sf3#
a2) 1. Td3 b4 2. fxe4 Txe4#
b)
play all play one stop play next play all
Anton Baumann: b1) 1.VAd3 exf5 2.Txc5 Te4#
b2) 1.POd3 b3 2.gxh3 Sf3#
C+ Alybadix (2023-12-12)
comment

Genre: Fairies, h#
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/4p3/2p1K1p1/2P1RpN1/3kP1p1/1r4pP/1PbP4/2r5
Input: Michal Dragoun, 1998-04-07
Last update: hpr, 1999-11-09 more...
98 - P0540829
Filippo Minieri
H551 The Problemist 07-08/1977
P0540829
(5+9) cooked
h#2
1.2.1.1
1) 1. exd3ep b8=D 2. Kd4 Df4#
2) 1. exd3ep a8=S 2. d4 Sxb6#
play all play one stop play next play all
Cook: e.p. not justified as R: 0.e3xd4 possible
VL: Unjustified ep-capture because of –e3xd4. For correction it suffices e.g. to add bSe3.
This is possibly a unique 2-move helpmate with ep-key and 2 solutions of the type 1.2.1.1 (at least so currently in the PDB).
Publi?ation details. H551 in the Helpmate section of the July issue, with no preview. Here is the text of the solution published in the Nov.-77 issue: “…White may have just played P(e3)xd4. Very few solvers have spotted this. Full marks for claim of no solution with correct reasoning but, in fairness, one mark for composer's intention. White cannot have just played K(a5)a6 in reply to Pxb6+ as too many captures by Black are required.” (2023-12-01)
A.Buchanan: Yes Valery you are right this must be cooked. However, I'm not a fan of +bSe3 because it spoils one of the model mates. Separately, I mildly prefer bPf7 to bPe6. (2023-12-03)
VL: I do prefer bPf7, as well. I don't see any way to save at least one of the properties Kindergarten Problem and Model mate (2) after fixing (what for these keywords have been added just now?). Besides, Andrew, please, refine the specification ((full) number and publication month 07-08). (2023-12-03)
A.Buchanan: Ok have added the publication details. The keywords are useful to indicate the aim, even though the problem is cooked. I guess there is a way to keep the model mates but it’s very clunky and probably +bSe3 is better (2023-12-03)
more ...
comment
Keywords: En passant as key, Kindergarten Problem, Model mate (2)
Genre: h#, Retro
Computer test: (Popeye C-Version 3.52 (2048 KB))
FEN: 8/PP6/Kpp1p3/2pp4/1pkPp3/2p5/P7/8
Input: Michal Dragoun, 1998-04-09
Last update: A.Buchanan, 2023-12-03 more...
99 - P0543181
Eugene Albert
?
P0543181
(2+2)
h#3
klären: Veröffentlichung??
SCHRECKE: 1. Lc7 Lc8 2. Ka8 Ka6 3. Lb8 Lb7#
mehrgleisig: 1. ... Lh1,Lg2,Lf3,Le4,Ld5 2. Lb8 Kc6 3. Ka8 Kb6# (2023-08-12)
comment

Genre: h#
FEN: 8/kB6/8/bK6/8/8/8/8
Input: hpr, 1998-04-19
100 - P0543689
Schamil Ade Dasni
1682 Gazeta Czestochowska 30/04/1974
P0543689
(4+3) cooked
h#2
b) sKc1 nach c2 (-wBc2)
a) 1. Lb3 Sb4 2. Td2 Da1#
b) 1. Td2 Da1 2. Lb3 Sb4#

NL:
b) 1. Kd3 Kf8 2. Lc2 Dd4#
play all play one stop play next play all
Yuri Bilokin: possibly +bSf5 4K3/8/2N5/4Qn2/b7/8/2P1r3/2k5 (4+4) h#2 b) bKc1-c2
a) 1.Bb3 Sb4 2.Rd2 Qa1# (MM)
b) 1.Rd2 Qa1 2.Bb3 Sb4# (MM)

Exchange of functions (wQe5/wSc6, Guard / Mate)
Exchange of moves (B1/B2)
Exchange of moves (W1/W2)
Hideaway (bB)
Model mate × 2 (2023-06-04)
comment

Genre: h#
FEN: 4K3/8/2N5/4Q3/b7/8/2P1r3/2k5
Input: Markus Manhart, 1998-04-17
Last update: hpr, 1999-05-02 more...
Show statistic for complete result. Show search result faster by using ids.

https://pdb.dieschwalbe.de/search.jsp?expression=COMMENTDATE%3E%3D20220810+AND+G%3D%27h%23%27+AND+NOT+S%3D%27Problemist+Ukrainy%27+AND+NOT+CPLUS+

The problems of this query have been registered by the following contributors:

Gerd Wilts (20)
hpr (16)
Erich Bartel (1)
Hans-Jürgen Schäfer (15)
Markus Manhart (20)
Andreas Mokosch (14)
HBae (5)
Ralf Krätschmer (3)
Michal Dragoun (6)