Chess Problem Database Server

619 problem(s) found in 2099 milliseconds (displaying 100 problem(s)). [A='Fabel' and FIRSTNAME='Karl'] [download as LaTeX]

1 - P0000850
Karl Fabel
185 Die Schwalbe 4 04/1970

(15+6)
#3 (RV)

1. cxb6ep+
play all

Henrik Juel: 1.0-0-0 Txa6 2.Lxb5+ c6 3.De8# or 1.cxb6ep+ c6 2.Lxc6+ Kd8 3.Txa8#. If last move wasn't b7-b5, Ta6 can be orig. Pa2 promoted on b8, so White may castle. (2004-01-26)
Sally: Entweder der sTa6 ist eine Umwandlungsfigur oder er kam von h1 über e1.Im 1. Fall ist w0-0-0 zulässig(und s0-0-0-0 sowie
Bb4xc6 en p. unzulässig); dann löst 1. 0-0-0! (Td1? verhin-
dert 3. De1#) - Txa6, 2. Lxb5+ - Bc6, 3. De1#. Im 2. Fall sind s0-0-0 und Bc5xb6 en p. (zuletzt geschah Bb7 - B5 - Tc6-a6+) zulässig (und w0-0-0 unzulässig), dann löst 1. Bc5x
- b6 en p.+! - Bc6, 2. Lxc6+ - Kd8, 3. Txa8#. Nr. 377 Eigen-
artige s. Probl. (W. Keynm 2010). (2011-12-01)
comment

Keywords: Castling (wgsg), Partial Retro Analysis (PRA), En passant as key
Genre: Retro, 3#
FEN: r3k3/2p2p2/R4P1B/ppP5/B4PP1/1N4P1/5PP1/R3K1QN
Reprints: Problem 148-151 11/1972
(9) Die Schwalbe 86 04/1984
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-08-22 more...

2 - P0000861
Josef Haas
Karl Fabel
248v Die Schwalbe 09/1970
T. Steudel gewidmet

(13+13) cooked
-1(w+s), dann h#1
b) -wTb3

a) R: 1. a7-a8=L Dc6-h1, dann 1. cxb3 a8=S#
b) R: 1. a7-a8=L h2-h1=D, dann 1. h1=T a8=S#
play all

Cook: (Mario Richter) In b) geht auch R: 1. Lb7-a6 Sa6xTb8!, dann 1. Dh1xb7 Tb8xb7#

Im Original stand der wBf7 auf f6. Dann wäre die Stellung aber illegal, weil alle wBB-Schläge auf schwarzen Feldern erfolgt wären. Deshalb versetzte K.Fabel den wB nach f7 (s. BuB Heft 7, 1971, S.194)
Henrik Juel: Seems OK; compare P0508809 (2004-01-26)
comment

Keywords: Allumwandlung, Help retractor, Non-standard material, Promotion
Genre: Retro
FEN: Bnrr4/2kp1P2/B2qp3/1p2NpP1/1Pp2P1P/1RRp3p/3P1K2/5N1q
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2011-08-27 more...

3 - P0000923
Karl Fabel
Die Schwalbe 1937

(6+3) C+
Letzter Zug?

R: 1. Tg2-g1
play all

comment

Keywords: Type A, Last Move? (T-), Economy record (Last Move? Type A)
Genre: Retro
Computer test: RSP 1.2
FEN: 8/8/8/8/8/5PPk/4PP1b/5bRK
Reprints: A/12 feenschach 159 04-06/2005
1.13A Eigenartige Schachprobleme , p. 176, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-28 more...

4 - P0000924
Karl Fabel
Die Schwalbe 1937

(7+2)
Letzter Zug?

R: 1. Lb2-c1
play all

comment

Keywords: Type A, Last Move? (L-), Economy record (Last Move? Type A), Minimal
Genre: Retro
FEN: 8/8/8/8/8/P2P4/P1kPP3/K1Bb4
Reprints: 1.19A Eigenartige Schachprobleme , p. 178, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-06-01 more...

5 - P0000926
Karl Fabel
Die Schwalbe 1937

(6+3)
Letzter Zug?

R: 1. Sc3-b1
play all

comment

Keywords: Type A, Last Move? (S-)
Genre: Retro
FEN: 8/8/8/8/1P6/kP6/B1PP4/Knb5
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2012-04-29 more...

6 - P0000927
Karl Fabel
Die Schwalbe 1937

(6+3)
Letzter Zug?

R: 1. Bc3-c2
play all

mri: Die Schwalbe, Heft 43 (Feb.1977), p.2 gives the position as follows: White: Kf8 Ph7 Black: Kh8 Re7 Pd7 Pe6 Pf7 Pg7 Pg6; last move: Ph6-h7 (2007-03-09)
more ...
comment

Keywords: Type A, Last Move? (B-), Economy record (Last Move? Type A)
Genre: Retro
FEN: 8/8/8/8/8/1P1P4/PPprP3/k1K5
Reprints: 1.31A Eigenartige Schachprobleme , p. 184, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-28 more...

7 - P0000936
Karl Fabel
The Fairy Chess Review 1957

(5+9)
Letzter Zug?

R: 1. La5xDd8
play all

comment

Keywords: Last Move? (LxD), Non-standard material, Type A
Genre: Retro
FEN: 1kBBB3/Rp1Kpppp/p1p1p3/8/8/8/8/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2012-04-29 more...

8 - P0000952
Karl Fabel
Die Schwalbe 1937

(3+6)
Letzter Zug?

R: 1. Sh7xTf8
play all

comment

Keywords: Type A, Last Move? (SxT), Economy record (Last Move? Type A)
Genre: Retro
FEN: 4BN1k/3ppKp1/4p1p1/8/8/8/8/8
Reprints: 1.27A Eigenartige Schachprobleme , p. 182, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-28 more...

9 - P0000973
Karl Fabel
Die Schwalbe 1937

(8+1)
Letzter Zug?

R: 1. De1xSd1
play all

comment

Keywords: Type A, Last Move? (DxS), Economy record (Last Move? Type A), Rex solus
Genre: Retro
FEN: 8/8/8/8/8/8/P1PPP1P1/k1KQ1B2
Reprints: A/10 feenschach 159 04-06/2005
1.11A Eigenartige Schachprobleme , p. 176, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-06-01 more...

10 - P0000975
Karl Fabel
Die Schwalbe 1937

(7+2)
Letzter Zug?

R: 1. Tb1xSa1
play all

comment

Keywords: Type A, Last Move? (TxS)
Genre: Retro
FEN: 8/8/8/8/8/P7/KPkPP3/R1Bb4
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-06-01 more...

11 - P0000981
Karl Fabel
Die Schwalbe 1937

(3+5)
Letzter Zug?

R: 1. Bd7xSe8=T
play all

more ...
comment

Keywords: Type A, Last Move? (BxS=T), Promotion (TL), Economy record (Last Move? Type A)
Genre: Retro
FEN: 3BRK1k/2p1pp1p/8/8/8/8/8/8
Reprints: [1] Problemkiste (69) 06/1990
A/41 feenschach 159 04-06/2005
1.46A Eigenartige Schachprobleme , p. 190, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-05-28 more...

12 - P0001010
Pieter ten Cate
S. von Egmont
Karl Fabel
Zvonimir Hernitz
Alexander Hildebrand
Veljko Vorgic
Problem 45-48 11/1957

(2+4) C+
Welches war der letzte Zug?
Schwarz am Zug

R: 1. a7-a8=D
play all

comment

Keywords: Type B, Last Move? (B-=D), Promotion (D), Economy record (Last Move? Type B)
Genre: Retro
Computer test: RSP 1.2
FEN: QKn5/1p6/1k6/8/p7/8/8/8
Reprints: B/32 feenschach 159 04-06/2005
1.37B Eigenartige Schachprobleme , p. 186, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-03-30 more...

13 - P0001038
Karl Fabel
(140) Problem 45-48 11/1957
4. Lob

(2+6)
Welches war der letzte Zug?
Schwarz am Zug

R: 1. h7xSg8=S
play all

comment

Keywords: Type B, Last Move? (BxS=S), Promotion (S), Economy record (Last Move? Type B)
Genre: Retro
FEN: 5KN1/3kppp1/6pn/8/8/8/8/8
Reprints: 3768 FEENSCHACH 01-02/1958
1.56B Eigenartige Schachprobleme , p. 194, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-03-30 more...

14 - P0001062
Karl Fabel
Jan R. Mortensen
Drazen Suboticanec
Sveto Stambuk
Problem 5-6 12/1951
1. Lob

(3+9)
Welches war der letzte Zug?

R: 1. Ba7xDb8=D+
play all

Compare P0000518 with same material, but 30 years later.
comment

Keywords: Type C, Last Move? (BxD=D), Promotion (D), Economy record (Last Move? Type C), Type M, Economy record (Last Move? Type M)
Genre: Retro
FEN: kQK5/1p1ppppp/R1p5/p7/8/8/8/8
Reprints: 1.38C Eigenartige Schachprobleme , p. 186, 2010
1.38M Eigenartige Schachprobleme , p. 186, 2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-06-03 more...

15 - P0001133
Karl Fabel
9 Europe Echecs 10 06/1959

(14+14)
Darf Weiß mit 1. Txd2 mattsetzen?

Schwarze Schläge: exd, fxg; weiße Schläge: cxb, hxg. R: 1. Sf7-h8 Lh2-g1 2. Sh6-f7 Lg1-h2 3. Sf5-h6 Lh2-g1 4. Tf3-f2 Lg1-h2 5. Lf2-e1 Lh2-g1 6. Lg1-f2 a6-a5 7. Tf2-f3 Tf3-e3 8. Se3-f5 Se1-c2 9. Sc2-e3+ Te3-f3 10. Tf3-f2 a7-a6 11. Tf2-f3 Sf3-e1 12. g5-g6 Se5-f3 13. Tf3-f2 Sg4-e5 14. Lf2-g1 Se5-g4 15. Le1-f2 Sg4-e5 16. Tf2-f3 Lg1-h2 17. Tf3-f2 Sf2-g4 18. g5-g6 Sh1-f2 19. Tf2-f3 h2-h1=S 20. Tf3-f2 h3-h2 21. h2xSg3
Nein, Weiß darf nicht mattsetzen, da er nicht am Zug ist.
play all

Vom Autor als "terrible rétro" bezeichnet!

Henrik Juel: No, Black has the move. -1.Sf7 Lh2 -2.Sh6 Lg1 -3.Sf5 Lh2 -4.Tf3 Lg1 -5.Lf2 Lh2 -6.Lg1 a6 -7.Tf2 Tf3 -8.Se3 Se1 -9.Sc2 Te3 -10.Tf3 a7 -11.Tf2 Sf3 -12.g5 Se5 -13.Tf3 Sg4 -14.Lf2 Lg1 -15.Le1 Sf2 -16.g4 Sh1 -17.Tf2 S=h2 -18.Tf3 h3 -19.h2xSg3 etc. Not terrible at all! (2004-01-12)
comment

Keywords: Non-standard material, Retroablösung (Ss), Retro Opposition, Promotion (L), Promotion in the retro play (s), Whose move?
Genre: Retro
FEN: 7N/3p2p1/3p2P1/p2K4/3PPP2/P2kr1P1/nPnrRRp1/qQbbBBb1
Reprints: 559 FIDE Album 1959-1961 1966
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2005-11-15 more...

16 - P0001145
Karl Fabel
The Fairy Chess Review 1957

(13+14)
#1 (wer?)

Henrik Juel: 1... e5#, not e.g. 1.d3? -1.Sh1 Tf6 -2.Sf2 Tg6 -3.Sd3 Tf6 -4.Sc1 Tg6 -5.Sb3 Tf6 -6.Sd4 Sd6 -7.Sb5 Se8 -8.Sh3 Sd6 -9.Sf4 Se8 -10.Sg6 Sd6 -11.Sh8 Se8 -12.S=h7 Sd6 -13.Sc5 Sb7 -14.Sd3 Tg6 -15.Sf4 Tf6 -16.Sg6 b3 -17.Sh8 g6 -18.f2 etc. (2004-01-12)
comment

Keywords: Non-standard material, Retro Opposition, Promotion, Whose move?
Genre: Retro
FEN: qRb5/pNp2pp1/B1K1p1rb/1n3pp1/P1k5/2P2PN1/1pPPP3/1N4N1
Reprints: 21 Europe Echecs 16 12/1959
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

17 - P0001149
Karl Fabel
25 Europe Echecs 18 02/1960

(14+12)
h#1

Henrik Juel: Early in the game, a sT moved for tempo, so the castlings are mutually exclusive. 0... 0-0/0-0-0 1.Sxe7#. 7 white moves (b3xSc4, Lb3-a2, b3, La3-c5-a7) cannot be interspersed by 5 black ones (a6-a5-a4, h7xTg6xTf5). (2004-01-12)
comment

Keywords: Partial Retro Analysis (PRA), Castling (sksg)
Genre: h#, Retro
FEN: r3k2r/B1pppp1b/1p4p1/N2N1pP1/p1P2P2/1P6/2PPPP2/QB5K
Reprints: 1808 Problem 73-78 06/1961
Die Schwalbe 9 06/1971
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-07-03 more...

18 - P0001168
Karl Fabel
41 Europe Echecs 26 10/1960

(15+14)
#1
Wieviele Lösungen?

Henrik Juel: No solutions, Black has the move. -1.Sb6 Tg1 ... -5.Se3 Tg1 -6.Sd4 Se1 -7.Sc2-d4 Sf3 -8.Sf5! Sg5 -9.Se3-g5 Se4 -10.Tf3 Sg3 -11.c3 Sh1 -12.g3 Lc8 -13.Kc5 d7 etc. (2004-01-12)
comment

Keywords: Non-standard material, Retro Opposition, Promotion, Whose move?
Genre: Retro
FEN: n7/1pp2p2/3p4/p2K4/N1P2PP1/P2k1NRb/nPnPRPP1/qQrn1B1r
Reprints: 560 FIDE Album 1959-1961 1966
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

19 - P0001183
Karl Fabel
56 Europe Echecs 34 06/1961

(13+13)
#1 (wer?)

Schlagfälle: d7xLc7, a2xLb3, h2xLg3, e2xDf3. Schwarz kann nicht rochieren, da der sK die sD im Retrospiel nach d8 zurücklassen muß. Weiß kann noch rochieren.
play all

Henrik Juel: The stipulation should be 'h#1 (who?)' I think. 1.0-0-0 Sxb3#, not 0... 0-0? 1.Txg7. Black may not castle, because orig. Lc8 or Dd8 has passed e8. (2004-01-26)
comment

Keywords: Cant Castler (wlsb), Castling (wlsb)
Genre: Retro
FEN: r3k2r/1pp2Np1/2p1pp1p/2p3RN/3n4/nPPP1PP1/1P3PP1/R3K3
Input: Gerd Wilts, 1995-06-03
Last update: Rainer Staudte, 2019-08-11 more...

20 - P0001195
Karl Fabel
556 FEENSCHACH 1961

(14+14)
#1 (wer?)

1. Lg1#? 1. Txd7#
Schwarz ist am Zug:
R: 1. Te6-f6 Sf6-g8 2. a2-a3 Se4-f6 3. Tf6-e6 Sc3-e4 4. Te6-f6 Sd1-c3 5. Tf6-e6 Se3-d1 6. Te6-f6 Tf6-f7 7. Lg1-h2 Tf7-f6 8. Lf2-g1 Sg2-e3 9. Le1-f2 Sf4-g2 10. Tf6-e6 Sh3-f4 11. Te6-f6 Sg5-h3 12. Tf6-e6 Se6-g5 13. Sa6-c7 Sc7-e6+ 14. Te6-f6 Tf6-f7 15. Sc5-a6 Tf7-f6 16. Sa4-c5 Tf6-f7 17. Sc3-a4 Tf7-f6 18. Sd1-c3 Tf6-f7 19. Se3-d1 Tf7-f6 20. Lf2-e1 Tf6-f7 21. Lg1-f2 Tf7-f6 22. Lh2-g1 Tf6-f7 23. Sg2-e3 Tf7-f6 24. Sf4-g2 Tf6-f7 25. Sh3-f4 Tf7-f6 26. Sg5-h4 Tf6-f7 27. Sf7-g6 g5-g4 28. Sh8-f7 Tf7-f6 29. h7-h8=S Tf6-f7 30. h6-h7 hxg6
play all

Henrik Juel: The sS checks on e4, so it didn't retract on f6-e4-c3-d1-e3, but e.g. on f6-h5-f4-g2-e3. 2.0 moves may be saved by retracting -10.Tf6 Se6 -11.Sa6 Sc7. Typo: -27.Sf7-g5. Last retraction is -30... h7xSg6. (Mostly nit-picking, sorry). (2004-01-26)
AV: Le mat est 1...Txf6# (encore du "nit-picking" !) (2005-05-28)
comment

Keywords: Retro Opposition, Tempo Loss, Promotion, Promotion in the retro play, Whose move?
Genre: Retro
FEN: QqBb1bn1/NpNRrrP1/1p1K1Rp1/3ppp2/3k2p1/P2P2P1/3PP2B/8
Reprints: 68 Europe Echecs 40 12/1961
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2002-11-27 more...

21 - P0001203
Karl Fabel
Finnischer Lösewettbewerb 1962

(12+14)
#2

Schwarz kann nicht mehr rochieren. Weiße Schläge: axbxc, schwarze Schläge: axbxc, dxc, fxg2. Der sTg7 kann nicht durch den Korridor nach g1 gespielt werden, da die 2 wTT den Korridor blockieren. 1. Ta8! 0-0?
play all

Henrik Juel: The position is illegal. After retracting a wT to h1, a sT to g1, g2-g1=T, f3xLg2, Lf1-g2, g2-g3, wK to e1, and wL to c1, we still cannot retract b2-b3, because then the wD cannot get home. Was this intended? (2004-01-26)
Joost: Black can of course retract b6xQc5 anytime before. (2004-02-02)
Joost: Oops. Sorry. He can't of course. (2004-02-02)
AV: Oui, l'illégalité était intentionnelle. Et la première version était démolie (c'est-à-dire légale !). Un grand-maître du rétro a du mal à créer des positions illégales, même pour s'amuser ! (2005-05-28)
comment

Keywords: Castling (sk), Corridor
Genre: Retro
FEN: 1b2k2r/1pp1p1r1/R1p1K1pp/n1p5/R1P5/1P4PP/2PPPP2/nb4B1
Reprints: 76 Europe Echecs 44 04/1962
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2001-02-19 more...

22 - P0001207
Karl Fabel
80 Europe Echecs 42 06/1962

(14+12)
Welches ist die minimale Anzahl von Zügen des sK?

AV: Le nombre minimal est 91:

A partir de Rg4,Df8,Td3,g5,h1,Ca1,g1,Pa6,b2,b3,d2,e2,f2,h3 (14)/Rb4,Ta5,Fa4,c3,Ch8,Pb5,b7,c2,d6,e7,f7,g6,h2 (13)

1.bxc3+ Le RN a déjà joué 4 coups 1...Ra3 2.Td4 Rb2 3.Td3 Rc1 4.Tdd5 Rd1 5.Td4 Re1 6.Td3 Rf1 7.Cf3+ Rg2 8.Tb1 d5 9.Tb2 Rf1 10.Ce5 Re1 11.Cf3+ Rd1 12.Ce1 Rc1 13.Ta2 Rb1 14.Ta3 Rb2 15.Tg3 Rb1 16.Tg1 Rc1 17.Th1 Rb1 18.Cf3+ Rb2 19.Cg1 Rc1 20.Dg8 Rd1 21.Dg7 Re1 22.Df8 Rf1 23.Cf3+ Rg2 24.Tb1 e6 25.Tb2 Rf1 26.Ce5 Re1 27.Tba2 Rd1 28.Rf3 Rc1 29.Rg2 Rd1 30.Rf1 Rc1 31.Tg1 Rd1 32.Th1 Rc1 33.Cf3 Rd1 34.Cg1 Rc1 35.Rg2 Rd1 36.Rf3 Re1 37.Re3 Rf1 38.Rd4 Re1 39.Rc5 Rd1 40.Rb4 Re1 41.Dc5 Rf1 42.Cf3+ Rg2 43.Tb1 b6 44.Tbb2 Rh1 45.Cd4 Rg1 46.Cf5 Rh1 47.Cg3+ Rg1 48.Cf1 Rh1 49.Tb1 Rg1 50.Te1 Rh1 51.Tb2 Rg1 52.Tbb1 Rh1 53.Tbd1 Rg1 54.Ta2 Rh1 55.Ra3 Rg1 56.Rb2 Rh1 57.Rc1 Rg1 58.Da3 Rh1 59.Db2 Rg1 60.Db1 Rh1 61.Rb2 Rg1 62.Ra3 Rh1 63.Rb4 Rg1 64.Ta3 Rh1 65.Db2 Rg1 66.Tb1 Rh1 67.Dc1 Rg1 68.Tb2 Rh1 69.Tba2 Rg1 70.Db2 Rh1 71.Tb1 Rg1 72.Dc1 Rh1 73.De1 Rg1 74.Td1 Rh1 75.Tb2 Rg1 76.Tbb1 Rh1 77.Ta2 Rg1 78.Ra3 Rh1 79.Rb2 Rg1 80.Rc1 Rh1 81.Ta3 Rg1 82.Tb2 Rh1 83.Tba2 Rg1 84.Rb2 Rh1 85.Tb1 Rg1 86.Rc1 Rh1 87.Tab2 Rg1 88.Taa2 Rh1 89.Dd1 Rg1 90.Cg3+ Rg2 91.Ch5 soit 91 coups du RN. (2005-05-28)
comment

Keywords: Minimal number of moves of a piece, Non-standard material, Promotion
Genre: Retro
FEN: 7n/5p2/Pp2p1p1/rp1p3N/b7/1PP4P/RRpPPPkp/NRKQ4
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

23 - P0001216
Karl Fabel
89 Europe Echecs 44 08/1962

(14+13)
Welches ist die minimale Anzahl von Zügen des sK?

AV: Le nombre est 88.
A partir de Rc4,Dd3,Tg5,h1,h5,Fb1,Cg1,g4,Pb2,b4,c2,d2,e2,f2,h3 (15)/Ra4,Ta6,Fa5,Ca1,a8,Pa7,b6,c7,d7,e7,f7,g6,h2(13)

1.b3+ déjà 6 coups du RN 1...Ra3 2.Fa2 Rb2 3.Fb1 Rc1 4.Rb5 Rd1 5.Dc4 Re1 6.Fa2 Rf1 7.Cf3+ Rg2 8.Tb1 e6 9.Tb2 Rh1 10.Cfe5 Rg2 11.Fb1 Rg1 12.Ta2 Rf1 13.Ta4 Re1 14.Fa2 Rd1 15.Ce3+ Rc1 16.Cf1 Rd1 17.Tg1 Rc1 18.Th1 Rd1 19.Cf3 Rc1 20.Cg1 Rd1 21.Ce3+ Re1 22.Cd5 Rf1 23.Cf3+ Rg2 24.Tb1 exd5 25.Tb2 Rh1 26.Ce5 Rg1 27.Fb1 Rf1 28.Tba2 Re1 29.T2a3 Rd1 30.Cf3 Rc1 31.Tg5 Rd1 32.Ce1 Rc1 33.Tg1 Rd1 34.Th1 Rc1 35.Cf3+ Rb2 36.Cg1 Rc1 37.Fa2 Rd1 38.Dd4 Re1 39.Dc3 Rf1 40.Cf3+ Rg2 41.Tb1 d4 42.Tb2 Rh1 43.Ch4 Rg1 44.Cf5 Rh1 45.Ce3 Rg1 46.Cf1 Rh1 47.Tb1 Rg1 48.Db2 Rh1 49.Dc1 Rg1 50.De1 Rh1 51.Td1 Rg1 52.Fb1 Rh1 53.Ta2 Rg1 54.Tb2 Rh1 55.Fa2 Rg1 56.Tbb1 Rh1 57.Tbc1 Rg1 58.Fb1 Rh1 59.Ta2 Rg1 60.Ra4 Rh1 61.Ra3 Rg1 62.Rb2 Rh1 63.Ta4 Rg1 64.Fa2 Rh1 65.Tb1 Rg1 66.Rc1 Rh1 67.Tb2 Rg1 68.Fb1 Rh1 69.Tba2 Rg1 70.T2a3 Rh1 71.Fa2 Rg1 72.Rb2 Rh1 73.Tb1 Rg1 74.Rc1 Rh1 75.Rd1 Rg1 76.Tc1 Rh1 77.Fb1 Rg1 78.Ta2 Rh1 79.Tb2 Rg1 80.Fa2 Rh1 81.Ta3 Rg1 82.Tcb1 Rh1 83.Rc1 Rg1 84.Dd1 Rh1 85.Cg3+ Rg2 86.Ch5 soit 88 coups de Roi. (2005-05-29)
comment

Keywords: Minimal number of moves of a piece, Non-standard material, Promotion
Genre: Retro
FEN: n7/p1pp1p2/rp4p1/b6N/1P1p4/RP5P/BRPPPPkp/nRKQ4
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

24 - P0001234
Karl Fabel
107 Europe Echecs 58 10/1963

(14+13)
#1

1. ... 0-0-0#? 1. ... Ke2#!
Der sLb4 muß nach a1, um den wLa5 nach c1 zu lassen. Der wTa1 hat schon gezogen. Schwarz hat keinen letzten Zug, also ist nun Schwarz am Zug.
play all

comment

Keywords: Whose move?, Cant Castler (wl), Castling (wl)
Genre: Retro
FEN: 5nqn/p2p1ppp/1p2p1P1/B1p5/1bP3N1/P1P5/1RPP1N1P/R3K1kB
Input: Gerd Wilts, 1995-06-03
Last update: Rainer Staudte, 2019-08-11 more...

25 - P0001364
Karl Fabel
01 Schachmatnaja Moskwa 28 (266) 31/12/1968
Lob

(13+8)
#1

1. Tf1# 1. 0-0#?
play all

Henrik Juel: Orig. Pf7 has moved. (2004-01-26)
Mario Richter: wBh5 is a promoted bishop, wPa2-e/g8 and white double-pawns e2/e5+g2/g6 require the capture of all missing black men. To be available as a capture object, one of the missing black pawns f7 or h7 either captured the wQ or promoted on f1 or h1, in each case destroying White's ability to castle. (2010-07-14)
comment

Keywords: Cant Castler, Castling (wk), Promotion
Genre: Retro
FEN: 2b2b2/1ppppNp1/6P1/2N1Pk1B/8/8/1PPPP1P1/2B1K2R
Reprints: 238 Europe Echecs 144 01/1971
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2010-07-14 more...

26 - P0001368
Karl Fabel
242 Europe Echecs 147 04/1971

(15+11)
#1
Wieviele Lösungen?

Henrik Juel: 1.Dxe3/Txe3/Tf1#, 3 solutions. Attempting to preserve the castling fails, because retracting Tf5 to d2 and Dd2 to a8 for unpromotion requires retracting Pd7 to d5. (2004-01-26)
AV: 1 Dxe3 me paraît un peu optimiste (Entschuldigung !). Donc 2 sol. (2005-05-29)
comment

Keywords: Cant Castler, Castling (wk)
Genre: Retro
FEN: 8/3P4/5p2/2P1Pr2/1PpBpP2/1pbprk1P/Np1QR1NP/1b1BK2R
Input: Gerd Wilts, 1995-06-03

27 - P0001379
Karl Fabel
253 Europe Echecs 154 10/1971
2. Preis

(11+14)
#1 (wer?)

Henrik Juel: 1.exd8=S#, not 1... Txa7? -1... Lc7 -2.Te5 Se6 -3.g3 Sd4 -4.Te6 Sf3 -5.Te5 Sh2 -6.Te6 Sg4 -7.Te5 Sh6 -8.Te6 Sg8 -9.Te5 Ld8 -10.e6 Se7 -11.g2 Sc8 -12.Lb8 Sa7 -13.Lc7 Le7 -14.Ld8 Lf8 -15.Le7 Lh6 -16.Lf8 Lg5 -17.Lg7 Lh4 -18.Lh8 Lg5 -19.L=h7 etc. (2004-01-26)
comment

Keywords: Retro Opposition, Promotion
Genre: Retro
FEN: Kb1nB3/BP1nPp2/rrkPRPp1/pppp1p2/4p1P1/8/1P1P4/8
Reprints: feenschach 13 02/1973
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 1996-07-29 more...

28 - P0001380
Karl Fabel
254 Europe Echecs 157 01/1972

(13+14)
#1 (wer?)

Henrik Juel: 1... g6#, not 1.Sh7? -1.Tf2 Sg6-h8 -2.Tf3 Se5 -3.Tf2 Sd3 -4.Tf3 Sc1 -5.Tf2 S=c2 -6.Tf3 c3 -7.Tf2 b4xPc3 -8.Tf3 a5xSb4 -9.Sc6 Sd5 -10.Se7 Sb4 -11.Tf2 Sd3 -12.Tf3 Sf2 -13.c2 Sh1 -14.Tf2 S=h2 -15.Tf3 h3 -16.h2xSg3 Se4 etc. Nice problem. (2004-01-26)
AV: Also possible ...hxTg1=S, going out via f3, but the conclusion is the same. (2014-12-14)
comment

Keywords: Retro Opposition, Promotion
Genre: Retro
FEN: 2bQqb1n/1pppnrp1/4pk2/5pNK/5PrB/4PRP1/PP2P1P1/5B2
Input: Gerd Wilts, 1995-06-03

29 - P0001383
Karl Fabel
257 Europe Echecs 157 01/1972

(15+8)
Wieviele Züge hat der sK mindestens gemacht?

AV: Le nombre est 87.
A partir de Rf1,Dd8,Tg6,h1,Fc1,Ca1,c4,Pa2,b5,c3,d2,e2,f2,g3,h3 (15)/Ra4,Fa6,Cb3,Pb4,b7,c2,d6,e7,f7,g7,h2 (11)
1.Cb2+ Le RN a déjà joué 4 coups. 1...Ra3 2.axb3 Ra2 3.Cc4 Rb1 4.Fa3 Ra2 5.Cb2 Rb1 6.Da5 Rc1 7.Cc4+ Rd1 8.Ce5 f6 9.Cf3 f5 10.Cg1 f4 11.Rg2 Re1 12.Rf3 Rf1 13.Rg4 Re1 14.gxf4 Rf1 15.Cf3+ Rg2 16.Tb1 d5 17.Tb2 Rf1 18.Ce5 Re1 19.Rg3 Rd1 20.Rg2 Rc1 21.Rf1 Rd1 22.Tg1 Rc1 23.Th1 Rd1 24.Cf3 Rc1 25.Cg1 Rd1 26.Rg2 Re1 27.Rg3 Rf1 28.Rg4 Re1 29.Ta2 Rf1 30.Cf3+ Rg2 31.Tb1 d4 32.Tbb2 Rf1 33.Ce5 Rg2! 34.f5 Rg1! 35.f6 Rf1 36.Rg3 Re1 37.Rg2 Rd1 38.Rf1 Rc1 39.f7 Rd1 40.f8T Rc1 41.Tf6 Rd1 42.Tg6 Rc1 43.Tg1 Rd1 44.Th1 Rc1 45.Cf3 Rd1 46.Cg1 Rc1 47.Rg2 Rd1 48.Rf3 Re1 49.Re4 Rf1 50.Tb1+ Rg2 51.Fc1 Rf1 52.Da3 Rg2 53.Db2 Rf1 54.Ta5 Rg2 55.Da2 Rf1 56.Tb2 Rg2 57.Db1 Rf1 58.Tba2 Rg2 59.T2a4 Rf1 60.Da2 Rg2 61.Fa3 Rf1 62.Cf3+ Rg2 63.Tb1 d3 64.Tb2 Rh1 65.Ce1 Rg1 66.Cg2 Rh1 67.Ce3 Rg1 68.Cf1 Rh1 69.Db1 Rg1 70.De1 Rh1 71.Tb1 Rg1 72.Td1 Rh1 73.Fc1 Rg1 74.Ta2 Rh1 75.Tb2 Rg1 76.Tb1 Rh1 77.Ta2 Rg1 78.Fa3 Rh1 79.Tbc1 Rg1 80.Tb2 Rh1 81.Tbb1 Rg1 82.Fb2 Rh1 83.Rxd3 Rg1 84.Rc4 Rh1 85.Rc5 Rg1 86.Rb6 Rh1 87.Ra7 Rg1 88.Ra8 Rh1 89.Cg3+ Rg2 90.Cf5 donc le RN a joué 87 coups. (2005-05-29)
comment

Keywords: Minimal number of moves of a piece, Non-standard material, Promotion
Genre: Retro
FEN: K7/1p2p1p1/b7/1P3N2/1p6/1PP4P/1BpPPPkp/NRRRQ3
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

30 - P0001386
Karl Fabel
260 Europe Echecs 160 04/1972

(14+13)
Darf Weiß #1?

Henrik Juel: Yes, White has the move, 1.DLxc7#. -1... Lc2 -2.f6 Lb1 -3.Sc2 La2 -4.Sb4 Lb1 -5.Sd5 Td7 -6.Sc7 Td4 -7.f5 Tg4 -8.f4 Tg1 -9.f3 T=g2 -10.f2 f3xLg2 -11.Lh3 Sd6 -12.Lc8 Sf5 -13.g5 Sd4 -14.g4 Sc2 -15.g3 Sa1 -16.h6 S=a2 -17.h5 a3 -18.a2xDb3 Dd1 -19.h4 Dg1 -20.h3 D=g2 -21.h2 h3xSg2 etc. Good problem, although -2.h6 ... -10.h2 h3xLg2 also works. (2004-01-26)
AV: Or ...fxSg2 and later ...hxLg2. (2014-12-14)
comment

Keywords: Retro Opposition
Genre: Retro
FEN: qRnkrb2/nQr1pPpP/RBP3P1/Kpp5/8/1P1P4/1P1pP3/N2b4
Input: Gerd Wilts, 1995-06-03

31 - P0001389
Karl Fabel
263 Europe Echecs 163 07/1972

(14+14)
Darf Weiß mattsetzen?

Henrik Juel: The stipulation question should be something like 'Whose move?'. -1.Df8 Tg7 -2.Tg5 Td6 -3.Ld7 g3xTh2 -4.Lc8 Td7 -5.Lb7 Td6 -6.La8 Td7 -7.De8 Td6 -8.Dd7 g4 -9.Dc8 Td7, unpromote wD on b8, retract b6xDa5, La8 to f1, e2xLf3 etc. (2004-01-26)
AV: L'énoncé est bien : "Les Blancs peuvent-ils mater ?" (2005-05-29)
comment

Keywords: Retro Opposition
Genre: Retro
FEN: 3bB1Nq/p1PrnpQp/P1p1pK1B/p2p2r1/5k2/5PRP/2P2PPp/4N3
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2005-05-29 more...

32 - P0001398
Karl Fabel
272 Europe Echecs 174 05/1973
3. Preis

(14+14)
#1 (wer?)

Henrik Juel: 1.Sf2#, not 1... Sg7? -1... Sa6 -2.Lb8 Tc7-c6 -3.La7 Sb8 -4.b2 Sc6 -5.Lb8 Se5 -6.Df8! Sf7 -7.La7 Tc6 -8.De8 Tc7-c6 -9.Dd8 Tc6 -10.Dc7 b5 -11.Db8 Tc7-c6 -12.Da8 Tc6 -13.Lb8 Tc7-c6 -14.D=a7 Tc6 -15.a6 a7xDb6 etc. Fabelous technique! (2004-01-26)
Sally: Nach 15 Ba6-a7 sind jetzt die restlichen Schlagfälle zu erkennen: a7xDb6; g4xs3;f2xe3;c5xb6; einer der sLc8 oder g8 ist durch Umwandlung auf f1 entstanden. In der Diagrammstellung ist also Weiß am Zug, da Schwarz nicht zuletzt gezogen hat. Weiß setzt mit Sf2#. Das Matt durch sSg7 ist unzulässig! Nr. KF-17 Schwalbe okt 2005. (2011-12-05)
comment

Keywords: Retro Opposition, Promotion
Genre: Retro
FEN: 1nb3b1/1PBrpQ1p/1prRKp2/2pp3n/1p1Pk3/1P2P1PR/4P2P/5N1N
Reprints: feenschach 34 06-07/1976
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 1996-08-17 more...

33 - P0001402
Karl Fabel
276 Europe Echecs 177-178 10/1973
2. ehrende Erwähnung

(15+12)
#1 (wer?)

Henrik Juel: 1... Txb6#, not 1.dxc8D? -1.Sf2 g5 -2.Sg4 Lf2 -3.Sf6 Lg1 -4.Sd5 L=g2 -5.Sf6 g6 -6.Sd5 Se6 -7.Sc7 Sg5 -8.h5 Sf3 -9.h4 Sh2 -10.h3 Sf1 -11.h2 h3xDg2, unpromote Sf1, retract f2xDLe3, unpromote DL on a1, retract a2xDSb3 etc. Very good. (2004-01-26)
comment

Keywords: Whose move?, Retro Opposition
Genre: Retro
FEN: nRrk4/NKnPp3/BBrp3P/Rpp5/b5p1/1P2P1P1/2PPP3/4b2N
Input: Gerd Wilts, 1995-06-03

34 - P0001405
Karl Fabel
279 Europe Echecs 182 01/1974

(14+13)
#1 (wer?)

Henrik Juel: 1... Sd4#, not 1.Ta8? -1.Sg3 Sc1 -2.Sh5 Sd3 -3.Sf6 Sc5 -4.Sg8 Se6 -5.S=g7 Sc5xPe6 -6.h6xDg7 De5 -7.h5 De1 -8.h4 Da1 -9.h3 D=a2 -10.h2 a3 -11.a2xDb3 Dc4 -12.e5 Lb3 -13.e4 a4 -14.e3 Sa3 -15.Lb5 etc. (2004-01-26)
comment

Keywords: Whose move?
Genre: Retro
FEN: 1RQB4/kNRrpp1p/B1Kp2p1/rn1p4/bp6/1PP5/nPP2PP1/7N
Input: Gerd Wilts, 1995-06-03

35 - P0001409
Karl Fabel
283 Europe Echecs 186 05/1974

(15+14)
#1
Wieviele Lösungen?

Henrik Juel: Diagram error? With wPd3 on d2, White has the move: -1... g6xSf5 -2.Db7 Se6 -3.Sd4 Sc5 -4.Se6 Sb3 -5.Sd8 Sa1 -6.Dc8 S=a2 -7.Db7 a3 -8.Dc8 a4 -9.Db7 a5 -10.Dc8 Lb7 -11.f2 a6 -12.a5xb6 etc. (2004-01-26)
AV: Non, le CN ne peut passer par e6 (échec au RB), il doit passer par b7. Le problème semble correct : aucun mat blanc en un coup, ce sont les Noirs qui matent par ...T8xh7#. (2005-05-29)
comment

Keywords: Whose move?, Retro Opposition
Genre: Retro
FEN: nbQnk1Nr/B1PRpRKB/bPpp1p1r/1p3p1p/8/3PPP2/2P3PP/8
Input: Gerd Wilts, 1995-06-03

36 - P0001413
Karl Fabel
287 Europe Echecs 191 10/1974

(14+13)
#1 (wer?)

Henrik Juel: 1.d4#, not 1... Th4? -1... Sb6 -2.Tc3 Sa4 -3.Sg3 Sc5 -4.Se4 Sb3 -5.Sg3 Sa1 -6.Se4 S=a2 -7.Sg3 Sc1 -8.Se2 Sb3 -9.g6 Sa1 -10.b3 h7, retract La3 to c1, Pa2 to a4, unpromote sS, retract b4xTa3, Ta1-a3, a2xTb3, Tb3 to h8, d2xLc3, Lc3 to f8 (so g5 must be free), g7xSf6 etc. (2004-01-26)
comment

Keywords: Non-standard material, Retro Opposition, Promotion, Whose move?
Genre: Retro
FEN: n7/2ppppP1/5p1p/5K2/1PP1N1r1/BR1P1k1b/1PP1nPnP/3B2nQ
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

37 - P0001419
Karl Fabel
293 Europe Echecs 194 01/1975

(16+11)
Welches war der letzte Bauernzug?

AV: Le dernier coup de pion fut ...a2-a1=C
1.Cc3 c5 2.Cb1 Db6 3.Cc3 Db3 4.Cb1 Cc6 5.Cc3 Ce5 6.Cb1 Cg6 7.Cc3 Cf6 8.Cb1 Ch5 9.Cc3 Chf4 10.Cb1 Tg8 11.h4 Ch8 12.h5 g6 13.h6 Tg7 14.hxg7 h5 15.cxb3 h4 16.Ca3 h3 17.Cc4 h2 18.Ce3 Ch3 19.gxh3 a5 20.Fg2 Ta6 21.Fe4 c4 22.Fb1 c3 23.Rf1 c2 24.g8T Tc6 25.Tg7 Tc3 26.Th7 Fg7 27.bxc3 Fd4 28.Fa3 Fb6 29.Fc5 Rd8 30.b4 Rc7 31.Fd6+ Rc6 32.Rg2 Rb5 33.Rf3 Ra4 34.Df1 Ra3 35.Dg2 a4 36.Th5 Rb2 37.Ta5 a3 38.Cf5 Rc1 39.Ta4 Fa5 40.Re3 b6 41.Dd5 Fb7 42.Db5 Fd5 43.Rd3 Fb3 44.axb3 Rd1 45.Rc4 Re1 46.Ta2 Rf1 47.Tb2 a2 48.Cf3+ Rg2 49.Te1 a1C Le dernier coup de pion. 50.Cg1 Rh1 51.Fa2 Rg2 52.Tbb1 Rh1 53.Tbd1 Rg2 54.Fb1 Rh1 55.Ta2 Rg2 56.Da4 Rh1 57.Da3 Rg2 58.Db2 Rh1 59.Ta4 Rg2 60.Da3 Rh1 61.Fa2 Rg2 62.Tb1 Rh1 63.Tb2 Rg2 64.Fb1 Rh1 65.Ta2 Rg2 66.Db2 Rh1 67.T2a3 Rg2 68.Fa2 Rh1 69.Tb1 Rg2 70.Dc1 Rh1 71.De1 Rg2 72.Td1 Rh1 73.Fb1 Rg2 74.Ta2 Rh1 75.Tb2 Rg2 76.Fa2 Rh1 77.Tbb1 Rg2 78.Tbc1 Rh1 79.Fb1 Rg2 80.Ta2 Rh1 81.Rb5 Rg2 82.Ra4 Rh1 83.Ra3 Rg2 84.Rb2 Rh1 85.Ta4 Rg2 86.Ra3 Rh1 87.Fa2 Rg2 88.Tb1 Rh1 89.Tb2 Rg2 90.Fb1 Rh1 91.Ta2 Rg2 92.Rb2 Rh1 93.T2a3 Rg2 94.Fa2 Rh1 95.Tb1 Rg2 96.Rc1 Rh1 97.Tb2 Rg2 98.Fb1 Rh1 99.Tba2 Rg2 100.Rb2 Rh1 101.Dc1 Rg2 102.Ce3+ Rh1 103.Cd1 Rg2 104.Cf3 Rh1 105.Cg5 Rg1 106.Ce6 Rh1 107.Cc7 Rg1 108.Ca8 Rh1 109.Fc7 (2005-05-29)
comment

Keywords: Last move of a specific piece?, Non-standard material, Promotion (T)
Genre: Retro
FEN: N6n/2Bppp2/1p4p1/b7/RP6/RPP4P/RKpPPP1p/nBQN3k
Reprints: (E) feenschach 28 05-07/1975
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-10 more...

38 - P0001421
Karl Fabel
295 Europe Echecs 197 04/1975
1er Lob

(12+12)
#1 (wer?)

Henrik Juel: 1... Dxg6#, not 1.f7? -1.Sb8 Le7 -2.Sa6 Lf8 ... -9.Sd8 Le7 -10.Sf7 Sd4 -11.Te6 Sb3 -12.Te5 Sa1 -13.Te6 S=a2 etc. (2004-01-26)
comment

Keywords: Whose move?
Genre: Retro
FEN: 3bk1KR/2PN3P/1PPPnPPq/1prbRppp/2p1p3/8/2P5/8
Input: Gerd Wilts, 1995-06-03

39 - P0001424
Karl Fabel
5650 Die Schwalbe 135, p. 472, 03/1939

(11+14)
#2

1. Ke6 0-0? 0-0-0?
play all

AV: ...gxFh2-h1T-a8 (via b1-a2-a4-b4-b6-a6) mais la Ta7 gêne : elle a dû passer par d8. (2005-05-29)
comment

Keywords: Cant Castler, Castling (sksg), Promotion (t), Corridor
Genre: Retro
FEN: r3k2r/Rpp1p2R/1bp2p1p/n1p2K2/2P5/1P5P/b1PPPPP1/n7
Reprints: (B) Die Schwalbe 8 04/1970
298 Europe Echecs 200 07/1975
Input: Gerd Wilts, 1995-06-03
Last update: Felber, Volker, 2011-12-30 more...

40 - P0001425
Karl Fabel
(III) Problem 37-40 09/1956

(2+4) C+
h#2*

*) 1. ... 0-0 2. d2 Tf8#
1) 1. Kg8 Tf1 2. Kh8 Tf8#
play all

Duplicate Diagram: P0003615

comment

Keywords: Cant Castler, Castling (wk), anticipated (P0003615)
Genre: h#, Retro
Computer test: Popeye C-Version 3.52 (2048 KB)
FEN: 7k/6pp/8/8/8/3p4/8/4K2R
Reprints: 299 Europe Echecs 200 07/1975
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-10-26 more...

41 - P0001427
Karl Fabel
Am Rande des Schachbretts 1947

(13+14) C+
BP in 41,5

1. Sf3 a5 2. Sd4 a4 3. Sb3 axb3 4. a3 Ta4 5. Ta2 bxa2 6. Tg1 axb1=S 7. Th1 Sc3 8. Tg1 Sb5 9. Th1 Sa7 10. Tg1 b5 11. Th1 Lb7 12. Tg1 Ld5 13. Th1 La2 14. b3 h5 15. Lb2 h4 16. Lf6 h3 17. Lh4 Sf6 18. Da1 Sh5 19. Df6 Tf4 20. Da6 e6 21. Kd1 Dg5 22. Kc1 Dg3 23. hxg3 Lc5 24. gxf4 Le3 25. Lg3 Ke7 26. Lh2 Kf6 27. g3 Kf5 28. Lg2 Kg4 29. La8 Sbc6 30. Kb2 Tb8 31. Ta1 Lb1 32. Lg1 h2 33. Kc3 Kh3 34. Kd3 Kg2 35. Ke4 Kf1 36. Kf3 Ke1 37. Kg4 Kd1 38. Kg5 f6+ 39. Kg6 Kc1 40. Kf7 Sd8+ 41. Ke8 Kb2 42. Ta2+
play all

Sally: Eine eindeutige BwP., die lange Zeit den Längenreord hielt und, wenn auch mit langer Verzögerung, wesentlich zum Boom dieser Gattung in den letzten 15 Jahren beigetragen hat. Im-
mer noch eine faszinierende Aufgabe. Nr. KF-13 Schwalbe Okt. 2005. (2011-12-05)
Moldenhauer: Ergänzung: Keine Lösung: BP 40.5, BP 41.0. (2023-05-20)
comment

Keywords: Unique Proof Game, Move Length Record, Non-standard material, Promotion
Genre: Retro
Computer test: Stelvio 1.17, in 3h.
FEN: Br1nK3/n1pp2p1/Q3pp2/1p5n/5P2/PP2b1P1/RkPPPP1p/1b4B1
Reprints: 1366 FIDE Album 1945-1955 1964
301 Europe Echecs 200 07/1975
(VIII) feenschach 28 05-07/1975
feenschach 38 04-06/1977
78 Shortest Proof Games 11/1991
17a 64 Proof Games 2012
Input: Gerd Wilts, 1995-06-03
Last update: Reto, 2023-04-14 more...

42 - P0001697
Karl Fabel
Die Schwalbe 1951
1. Preis

(14+13)
Wer gewinnt?

R: 1. Lg8-h7 f5xSe4 2. Lh7-g8 Lg8-f7 3. Sc5-e4 Lf7-g8 4. Sb3-c5 Lg8-f7 5. Sd4-b3 Lf7-g8 6. Sf3-d4 Sg5-h2 7. Sh2-f3+ Se3-g4 8. Lg8-h7 Sc2-e3 9. Lh7-g8 Sa2-c1 10. Lg8-h7 a2-a1=S 11. Lh7-g8 a3-a2 12. Lg8-h7 a4-a3 13. Lh7-g8 a5-a4 14. a4xSb5 Sc3-b5 15. Lg8-h7 Se4-c3 16. Lh7-g8 Lg8-f7 17. Sf7-g5 Sg5-e4+ 17. Sh8-f7 Lf7-g8 18. Lg8-h7 a6-a5 19. h7-h8=S a7-a6 20. h6-h7 h7xXb6
play all

comment

Keywords: Whose move?, Retro Opposition, Promotion
Genre: Retro
FEN: 4N3/1pp1PbpB/3prbp1/1P2p1N1/4p2K/6PR/1P1PPPRn/2B3nk
Reprints: 1368 FIDE Album 1945-1955 1964
Input: Gerd Wilts, 1995-06-03

43 - P0001704
Karl Fabel
Die Schwalbe 1965
1. ehrende Erwähnung

(15+14)
#1 (wer?)

R: 1. Tc6-d6 Sb8-a6 2. Td6-c6 Sc6-b8 3. g4-g5 Se5-c6 4. Tc6-d6 Sd3-e5 5. Td6-c6 Tc6-c7 6. Lb1-a2 Tc7-c6 7. Lc2-b1 Se5-d3 8. Ld1-c2+ Sc4-e5 9. Td6-c6 Sd6-c4 10. Se5-f7 Sf7-d6+ 10. Td6-c6 Tc6-c7 11. Sd3-e5 Tc7-c6 12. Lc2-d1 Tc6-c7 13. Lb1-c2 Tc7-c6 14. La2-b1 Tc6-c7 15. Sb2-d3 Tc7-c6 16. Sc4-b2 Tc6-c7 17. Sa3-c4 Tc7-c6 18. Sb5-a3 Tc6-c7 19. Sc7-b5 b5-b4 20. Sa8-c7 Tc7-c6 21. a7-a8=S Tc6-c7 22. a6-a7 a7xSb6
play all

comment

Keywords: Retro Opposition, Promotion
Genre: Retro
FEN: 2b2Bqb/1PrrpNRQ/np1RK1pp/2pp2P1/1p2k3/1P2P3/B2PP2P/5N2
Reprints: 599 FIDE Album 1965-1967 1976
Input: Gerd Wilts, 1995-06-03
Last update: Frank Müller, 2011-08-23 more...

44 - P0001706
Karl Fabel
Die Schwalbe 1966
2. Preis

(2+16)
#1 vor 12
VRZ, Typ Proca

Vergleichsstück zu Opus 1146 (P1382820)
Henrik Juel: The stipulation means 'Retract 11.5 moves, then #1'. All captures were made by black pawns. -1.Ka8 Rb7 -2.Ka7 Rb6 -3.Kb7 Rc6 -4.Kb6 Rc5 -5.Kc6 Rd5 -6.Kc5 Rd4 -7.Kd5 Re4 -8.Kd4 Re3 -9.Ke4 Rf3 -10.Ke3 Rf2 -11.Kf3 Rg2 -12.Kg4, 1.f5# (2003-07-08)
Henrik Juel: This classic seems unsolvable, because both camps have the right to mate, if they can, just after a retraction. And following ... -9.Ke4 Tf3, Black mates with 1... Tc3#. It can be rectified by adding the somewhat lame condition: Black is not allowed to mate; but this would detract from the defensive nature of this problem form. (2005-11-03)
Sally: Weiß will seinen König auf g4 plazieren, um dann mit f5 matt zu setzen. Dazu lenkt er den sT. so, dass er ihm den nötigen Schachschutz gibt. Zurück: 1. Ka8-b8 - Tb7-a7,
2. Ka7-a8 - Tb6-b7, 3. Kb7-a7 - Tc6-b6.....11. Kf3-e3 - Tg2-f2+, 12. Kg4-f3 und vor 1. Bf5#. die sBB. auf dem Damenflügel dienen dem einzigen Zweck, durch ihre Schlagbi-
lanz störende Entschläge des sT unmöglich zu machen.
Nr. KF-14 Schwalbe Okt. 2005. (2011-12-05)
comment

Keywords: Defensive Retractor, Type Proca, Fabel-Opus (946)
Genre: Retro
FEN: 1K6/r4nrn/5pkq/p7/p4P2/pp4p1/p1p5/6bb
Reprints: (V) feenschach 28 05-07/1975
683 FIDE Album 1965-1967 1976
(3) feenschach 49 01-03/1980
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2020-12-09 more...

45 - P0001709
Karl Fabel
6709 Die Schwalbe 08-09/1942

(15+15)
h# vor 22 Zügen

Henrik Juel: Stipulation clarification: 'Retract 22.0 moves (White starting), then h#1'. -1.Lh7 Df8 -2.Lg8 Dg7 -3.Lh7 Da1 -4.Lg8 Da8 -5.Lh7 La7 -6.Lg8 Tb8 -7.Lh7 La6 -8.Lg8 Kc8 -9.Lh7 Kb7 -10.Lg8 Tf8 -11.Lh7 Kc8 -12.Lg8 Kd8 -13.Lh7 Ke8 -14.Lg8 Dd8 -15.Lh7 Lc8 -16.Lg8 b7 -17.Lh7 Ld4 -18.Lg8 Lg7 -19.Lh7 Tg8 -20.b4 Lf8 -21.Kh5 g7 -22.Dh4 Sg6, 0... f6 1.Lxg6#. Very nice. (2004-01-12)
comment

Keywords: Promotion (T), Non-standard material
Genre: Retro
FEN: 1bbkq1Bn/1rpppp2/1p4pp/1P3rP1/6PK/5PRQ/2PPPRRN/5bN1
Reprints: 330 FIDE Album 1914-1944/III 1975
Input: Gerd Wilts, 1995-06-03
Last update: Frank Müller, 2011-01-27 more...

46 - P0001724
Hugo August
Karl Fabel
The Fairy Chess Review 12/1946

(10+13) cooked
# vor 35 Zügen

R: 1. Tc7-c8+ Ka8-b8 2. Ke8-d8 Kb8-a8 3. Kf7-e8 Ka8-b8 4. Kg6-f7 Kb8-a8 5. Kg5-g6 Ka8-b8 6. Kh4-g5 Kb8-a8 7. Kh3-h4 Ka8-b8 8. Kh2-h3 Kb8-a8 9. Kg1-h2 Ka8-b8 10. Kf1-g1 Kb8-a8 11. Ke1-f1 Ka8-b8 12. Kd1-e1 Kb8-a8 13. Kc1-d1 Ka8-b8 14. Kb2-c1 Kb8-a8 15. Ka3-b2 Ka8-b8 16. Ka4-a3 Kb8-a8 17. Ka3xBa4 Ka8-b8 18. Kb2-a3 Kb8-a8 19. Kc1-b2 Ka8-b8 20. Kd1-c1 Kb8-a8 21. Ke1-d1 Ka8-b8 22. Kf1-e1 Kb8-a8 23. Kg1-f1 Ka8-b8 24. Kh2-g1 Kb8-a8 25. Kh3-h2 Ka8-b8 26. Kh4-h3 Kb8-a8 27. Kg5-h4 Ka8-b8 28. Kg6-g5 Kb8-a8 29. Kf7-g6 Ka8-b8 30. Ke8-f7 Kb8-a8 31. Kd8-e8 Ka8-b8 32. Kc8-d8 a3-a4 33. Td8-d7 a2-a3 34. Td7-c7 Lb8-d6 35. Tc7-d7 Td7-d5 dann 1. Txc7#
play all

Cook: R: 34. ... Lc7-d6 35. Bd6xDc5 Db4-c5,Db3-c5,Db5-c5 dann 1. Dxb7#

Mario Richter: How about R: 34. ... Lc7-d6 35. Bd6xDc5 Db4-c5, 1. Dxb7#? (2021-02-16)
A.Buchanan: Well spotted, Mario. The first 33.5 retractions are clear but then there is a bit more flexibility. Can sLg7 be shifted to b6? I don’t think it’s actually needed in the former location. (2021-02-17)
Mario Richter: For me, this dual makes the problem cooked.

I think that shifting sLg7 to b6 doesn't help (e.g. it allows the Bishop to uncapture the white pawn ob a5) (2021-02-17)
A.Buchanan: Sorry I wasn't trying to imply that the "flexibility" is tolerable: it's definitely cooked. Without the clock ticking for the mate, there is no unique retraction at all, as Black pieces can just wander all over. I don't suppose we can shift sBb7 to b6? (2021-02-17)
Mario Richter: No, shifting sBb7 to b6 allows a black rook to temporarily occupy b7, thereby giving wLd6 the opportunity for tempo moves, e.g. R: 1. ... Tc7-c8 2. Ka8-b8 Tb7-c7 3. Lb8-d6 Kc8-d8 4. Ld6-b8 Td8-d7 5. Lc7-d6 Te8-d8 6. Lb8-c7 Td7-b7 7. Ld6-b8 Kd8-c8 8. Kb8-a8, dann 1. Lc7# (2021-02-17)
A.Buchanan: I have some other ideas: but even I can see that none of them work. OK this one is cooked. (2021-02-17)
more ...
comment

Keywords: Promenade (k), Help retractor
Genre: Retro
FEN: 1Krk4/pp1rp1b1/2pB4/2pRP3/3p2P1/5Pp1/2PPPpb1/7N
Reprints: 1425 FIDE Album 1945-1955 1964
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-02-17 more...

47 - P0001725
Hugo August
Karl Fabel
Revista Romana de Sah 1949

(16+12)
Welches waren die letzten 16 Einzelzüge?

R: 1. Sc3-a4 a4-a3 2. Ke1-f2 a5-a4 3. f2-f3 a6-a5 4. Sf3-h2 h2-h1=L 5. Da7-e3 h3-h2 6. Da8-a7 h4-h3 7. a7-a8=D h5-h4 8. b6xTa7 Ta8-a7
play all

Henrik Juel: -1.Sc3 a4 -2.Ke1 a5 -3.f2 a6 -4.Sf3 L=h2 -5.Da7 h3 -6.Da8 h4 -7.D=a7 h5 -8.b6xTa7 Ta8. (2004-01-12)
Thomas Volet: The Charosh collection contains this as one of several compositions published in the 1940s (a bunch in FCR November 1949), striving for a low ratio of forced to unforced retractions. MC gives the ratio here as 33/16, and the source as Romana de Sah 1949. (2012-04-10)
Thomas Volet: Oops, my bad. Of course the objective is high ratio of forced to total retractions. (2012-04-10)
A.Buchanan: @Thomas: supplying the context adds so much! Thank you. (2012-04-10)
Alain Brobecker: For example: 1.d2-d4 Nb8-a6 2.Nb1-c3 Na6-c5 3.d4xc5 Ng8-h6 4.h2-h3 Nh6-g4 5.h3xg4 h7-h5 6.Ng1-f3 Rh8-h6 7.Rh1-h3 Rh6-b6 8.Rh3-g3 a7-a6 9.c5xb6 and now the precise retraction is 9... Ra8-a7 10.b6xRa7 h5-h4 11.a7-a8=Q h4-h3 12.Qa8-a7 h3-h2 13.Qa7-e3 h2-h1=B 14.Nf3-h2 a6-a5 15.f2-f3 a5-a4 16.Ke1-f2 a4-a3 17.Nc3-a4

The Messigny 2009 composition tourney was asking for PG with positions in which last single moves were determined. See P1085387 (12/32) , P1085388 , P1085389 ... (2012-04-26)
comment

Keywords: Last Moves? (16), Promotion, Non-standard material, Non-Unique Proof Game
Genre: Retro
FEN: 2bqkb2/1pppppp1/8/8/N5P1/p3QPR1/PPP1PKPN/R1BQ1B1b
Reprints: 8342 The Fairy Chess Review 28/11/1949
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-11-19 more...

48 - P0001726
Karl Fabel
The Fairy Chess Review 1945

(14+14)
Wer gewinnt?

Henrik Juel: Black has the move and wins by 1... Txc6#. -1.Td6 Sc7 -2.g3 Sa5 -3.Tc6 Sc4 -4.h4 Sd6 -5.Sd8 Sf7 -6.Td6 Tc6 -7.h3 Tc7-c6 -8.Sc6 g6 -9.Sb8 Tc6 -10.Sa6 Tc7-c6 -11.h2 Tc6 -12.Sc7 b5 -13.Sa8 Tc7-c6 -14.S=a7 etc. (2004-01-12)
comment

Keywords: Retro Opposition, Promotion, Whose move?
Genre: Retro
FEN: 1nb1BBqQ/1PrrRNpN/1pR1K2p/2ppp1pP/1p2k1P1/4P3/1P2P3/8
Reprints: The Fairy Chess Review 06/1946
(X) Problem 7-9 03/1952
73 32 personaggi e 1 autore 1955
FIDE Album 1945-1955 1369 1964
300 Europe Echecs 200 07/1975
(VII) feenschach 28 05-07/1975
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 1997-02-17 more...

49 - P0001735
Karl Fabel
The Fairy Chess Review 1939

(13+11)
#1

1. Tf1#, nicht 1. 0-0#
play all

Henrik Juel: White played g6xLh7-h8=T, and wK has moved to let orig. Th8 out and back. (2004-01-12)
Sally: hier geht es zu beweisen, dass nur 1. Tf1! mattsetzt, aber nicht die Rochade. Um die Stellung aufzulösen, muss der wTg5 über a1 nach h8 ziehen und sich dort entwandeln. Dann ist der Zug wB6xLh7 zurückzunehmen, der sTa1 kehrt nach h8 zurück und der geschlagene sL begibt sich nach c8, um die
Rücknahme von Bb7-b6 zu ermöglichen. Aber der wTg5 kann nicht am sTa1 vorbeiziehen, es sei denn, dieser weiche über
d1 aus, was den wK. zwingt zu ziehen. S. 291 Nr 28 Schalbe
Aug. 1981. (2011-12-05)
comment

Keywords: Cant Castler, Castling (wk), Promotion (T), Corridor
Genre: Retro
FEN: NB6/2ppppp1/1p2rk1p/2p3R1/N1P4P/2P5/1PP1P3/rB2K2R
Reprints: 211 FIDE Album 1914-1944/III 1975
(F) Die Schwalbe 33 06/1975
(28) Die Schwalbe 70 08/1981
Input: Gerd Wilts, 1995-06-03

50 - P0001739
Karl Fabel
9561 The Fairy Chess Review 06/1953

(14+14)
Welches waren die letzten Züge?

R: 1. Tf1-h1 f6xSe5 2. Sf3-e5 Kh1-g2 3. Sg1-f3 Kg2-h1 4. Lc3-b2 Kh1-g2 5. Tb2-b1 Kg2-h1 6. Ta2-b2 Kh1-g2 7. Ta3-a2 Kg2-h1 8. Tb1-c1 Kh1-g2 9. Tb2-b1 Kg2-h1 10. Ta2-b2 Kh1-g2 11. Tb1-d1 Kg2-h1 12. Kd1-e1 Kh1-g2 13. Kc1-d1 Kg2-h1 14. Td1-f1 Kh1-g2 15. Kb2-c1 Kg2-h1 16. Tc1-b1 Kh1-g2 17. Kb1-b2 Kg2-h1 18. Tb2-a2 Kh1-g2 19. Ka2-b1 Kg2-h1 20. Tb1-b2 Kh1-g2 21. Kb2-a2 Kg2-h1 22. Ta2-a3 Kh1-g2 23. Ka3-b2 Kg2-h1 24. Kb4-a3 Kh1-g2 25. Ta3-a2 Kg2-h1 26. Tb2-b1 Kh1-g2 27. Ta2-b2 Kg2-h1 28. Tb1-c1 Kh1-g2 29. Tb2-b1 Kg2-h1 30. Sf3-g1 d5-d4 31. Th1-d1 Kf1-g2 32. Sg1-f3 Ke1-f1 33. Le5-c3 Kd1-e1 34. Kc3-b4 Kc1-d1 35. Kd3-c3 Kd1-c1 36. Ke3-d3 Kc1-d1 37. Kf3-e3 Kd1-c1 38. Kg2-f3 Kc1-d1 39. Kf1-g2 Kd1-c1 40. Sf3-g1 Kc1-d1 41. Tg1-h1 Kd1-c1 42. Tg8-g1 Kc1-d1 43. Kg2-f1 Kd1-c1 44. Kg3-g2 Ke1-d1 45. Sh4-f3 Kf1-e1 46. Kg4-g3 Kg2-f1 47. Sf3-h4 Kh1-g2 48. Th8-g8 Kg2-h1 49. Tb1-b2 d6-d5 50. Th1-b1 Kf1-g2 51. Sg1-f3 Ke1-f1 52. Kg3-g4 Kd1-e1 53. Kg2-g3 Kc1-d1 54. Kf1-g2 Kd1-c1 55. Sf3-g1 Kc1-d1 56. Tg1-h1 Kd1-c1 57. Tg8-g1 Kc1-d1 58. Kg2-f1 Kd1-c1 59. Kg3-g2 Ke1-d1 60. Sh4-f3 Kf1-e1 61. Kg4-g3 Kg2-f1 62. Sf3-h4 Kh1-g2 63. Tb2-a2 Kg2-h1 64. Tb1-b2 d7-d6 65. Th1-b1 Kf1-g2 66. Sg1-f3 Ke1-f1 67. Kg3-g4 Kd1-e1 68. Kg2-g3 Kc1-d1 69. Kf1-g2 Kd1-c1 70. Sf3-g1 Kc1-d1 71. Tg1-h1 Kd1-c1 72. Tg7-g1 Kc1-d1 73. Kg2-f1 Kd1-c1 74. Kg3-g2 Ke1-d1 75. Sh4-f3 Kf1-e1 76. Kg4-g3 Kg2-f1 77. Sf3-h4 Kh1-g2 78. Ta2-a3 Kg2-h1 79. Tb2-a2 Kh1-g2 80. Lf4-e5 Kg2-h1 81. Tb1-b2 f7-f6 82. Th1-b1 Kf1-g2 83. Sg1-f3 Ke1-f1 84. Kh4-g4 Kd1-e1 85. Tg3-g7 Kc1-d1 86. g7-g8=T Kb2-c1 87. g6-g7 Ka3-b2 88. Le5-f4 Kb4-a3 89. Lb2-e5 Kc5-b4 90. Lc1-b2 Kd6-c5 91. b2-b3
play all

weiter: Bg2xLh3, sLh3 nach c8, wT entwandelt auf a8, sBa6/7xS, wBhxsBg

hans: R: -1. Rf1-h1 f6xSe5 -2. Sf3-e5 Kh1-g2 -3. Sg1-f3+ Kg2-h1 -4. Bc3-b2 K -5.Rb2-b1 K -6. Ra2-b2 K -7. Ra3-a2 K -8.Rb1-c1 K -9. Rb2-b1 K -10. Ra2-b2 K -11. Rc1-d1 K -12. Rb1-c1 K -13. Kd1-e1 K -14. Kc1-d1 K -15. Kb2-c1 K -16. Re1-b1 K -17.Kb1-b2 K -18. Rb2-a2 K -19. Ka2-b1 K -20. Rb1-b2 K -21. Kb2-a2 K -22. Ra2-a3 K -23. Ka3-b2 K -24. Rb2-b1 K -25. Rb1-e1 K -26. Kb4-a3 K -27. Ra3-a2 K -28. Ra2-b2 K -29. Rb2-b1 Kg2-h1 -30. Sf3-g1 d5-d4 -31. Rh1-f1 Kf1-g2 -32. Sg1-f3+ Kg2-f1 -33. Bd4-c3 Kf1-g2 -34. Kc3-b4 Kg2-f1 -35. Kd3-c3 Kf1-g2 -36. Ke3-d3 Ke2-f1 -37. Kf3-e3 Kd1-e1 -38. Kg2-f3 Kc1-d1 -39. Kf1-g2 Kd1-c1 -40. Sf3-g1 Kc1-d1 -41. Se5-f3 Kd1-c1 -42. Rg1-h1 Kc1-d1 -43. Rg8-g1 etc.
Kd1-c1 -44. Rh8-g8 -45. Kg3-g2 Kc1-d1 -46. Kg2-gf1 Kd1-c1 -47. Kf3-g2 Ke1-d1 -48. Kf4-f3 Kf1-e1 -49. Sf3-e5 Kg2-f1 -50. Rb1-b2 d6-d5 -51. Rh1-d1 Kf1-g2 -52. Sg1-f3+ Ke1-f1 -53. Kf3-f4 Kd1-e1 -54. Kg2-f3 Kc1-d1 -55. Kf1-g2 Kd1-c1 -56. Sf3-g1 Kc1-d1 -57. Rg1-h1 Kd1-c1 -58. Rg7-g1 ------------ -95. ... Kb4-a3 -96. Bb2-e5 Kc5-b4 -97. Bc1-b2 Kd6-c5 -98. b2-b3 etc.
(wK and wS manoeuvre to let wRooks pass the bK, with the necessary bPawn tempo-moves) (2011-12-08)
Brassaud: A theme widely explored by Karl Fabel, confer problems P0001383 (1972) and P0001419 (1975) (2018-02-01)
comment

Keywords: Last Moves?, Castling (wk), Non-standard material (TT)
Genre: Retro
FEN: nb6/qrp1p3/Qp6/rp2p3/B2p4/1P5P/1BPPPPkp/nRRRK2R
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2020-04-24 more...

51 - P0001874
Karl Fabel
Die Schwalbe 1941

(16+1)
BP in 15,5

1. Sa3 b5 2. Sxb5 Sf6 3. Sxa7 Se4 4. Sxc8 Sc3 5. Sxe7 c6 6. Sxc6 Sb1 7. Sxb8 Ta3 8. Sxd7 g5 9. Sxf8 Dd6 10. Sxh7 Kd7 11. Sxg5 Th4 12. Sxf7 Tc4 13. Sxd6 Kc6 14. Sxc4 Kb5 15. Sxa3+ Ka4 16. Sxb1
play all

Duplicate Diagram: P0577369, P1298032

Zvi Mendlowitz: or 1.Sc3, 11...Tc8. Why 12...Rc4 rather than 12...Tc4? (2004-12-10)
Erich Bartel: weitere Nachdrucke:
5) Am Rande des Schachbretts, 1947.---
6) Kurioses Schach, 1960.---
7) Springaren (57) VI 1994.--- (2008-01-12)
comment

Keywords: Non-Unique Proof Game, Homebase (W), Initial Game Array (W)
Genre: Retro
FEN: 8/8/8/8/k7/8/PPPPPPPP/RNBQKBNR
Reprints: 350 FIDE Album 1914-1944/III 1975
RA28 diagrammes 19 01-02/1976
72a 100 Classics of the Chessboard 1983
161 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2013-03-15 more...

52 - P0001904
Karl Fabel
Stella Polaris 1966
Preis

(13+13)
Welches waren die letzten 2 Züge?

R: 1. Th-b1 Kf1-g2
play all

2 Züge
comment

Keywords: Last Moves?, Promotion, Minimal number of moves of a piece, Non-standard material
Genre: Retro
FEN: n7/Kpp3p1/Brp5/rp6/b2p4/RP3N1P/RRPPPPkp/nR6
Reprints: 8674 FEENSCHACH 03/1968
600 FIDE Album 1965-1967 1976
RA107 diagrammes 36 11-12/1978
Input: Gerd Wilts, 1995-06-03
Last update: Frank Müller, 2011-08-23 more...

53 - P0001916
Karl Fabel
Basler Nachrichten 1964

(11+13)
#1

1. Kf2#! (1. 0-0#?)
play all

White's pawn captures of bRRB took place on f3,g3,h3. So wPa & wPc were waylaid on their initial files. (wPa could not promote because a7 only emptied after a8 was occupied by bN.) So there are just wQR available for Black pawn captures, and one of them was b6. Therefore bPf & bPg did not cross-capture. Both of them must have moved to their final squares in order for either bR to escape (a file again blocked). Thus when gxRf3 happened to release wBf1, the constraining pawns e2,f3,f5,f6 were all in place. The only way for bB from c8 to have passed wBf1 is if it could occupy the nook on h1. So wRh1 has shifted and White can't castle.

Stichwort: Läuferkorridor
Henrik Juel: Lg4 paused on h1 to let Lh5 pass g2. (2004-01-26)
Sally: sTT über f6 nach f3 und e3/g3, Läuferkorridor von f1 bis h5. Ausweichfeld h1. Daher 1. Kf3#! nicht 1.0-0-0#?.
Nr. 425 Eigenartige S. Prbl. ( W. Keym 2010). (2011-12-01)
comment

Keywords: Cant Castler, Castling (wk)
Genre: Retro
FEN: n1q1n3/1pp1p2p/1p1p2p1/5p1B/1NN3b1/4PPP1/1P1PP3/1k2K2R
Reprints: 1617 Augsburger Allgemeine 22/02/2020
2016 Scobs lignea 23/02/2020
ChessBase India 15/10/2021
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-10-15 more...

54 - P0001933
Karl Fabel
Der Schachspiegel 1948

(8+15)
Ergänze eine weiße Dame, dann #1!

+wDa1: 1. b3#
play all

comment

Keywords: Add pieces
Genre: Retro
FEN: r2q2bk/b1ppn2p/1p4p1/5p2/1n2p3/8/PPPPPpP1/3K1B2
Input: Gerd Wilts, 1995-06-03

55 - P0001935
Karl Fabel
(3) Problem 52-58 08/1958
1. Preis

(16+16)
BP in 46,0

1. e3 Sc6 2. Ke2 Tb8 3. Kd3 e6 4. Kc4 Ke7 5. Kb5 Sd4 6. Ka5 b5 7. Dh5 Tb6 8. Lc4 Td6 9. Sf3 Se2 10. Sc3 Td3 11. b3 Lb7 12. Se5 Lf3 13. Ka6 Kd6 14. Ld5 Kc5 15. Kb7 Dh4 16. Kc8 Dg4 17. Kd8 Kb6 18. Se4 Ka5 19. La3 Lc5 20. Thb1 Ld4 21. Ld6 Sf6 22. Ke7 Tb8 23. b4+ Ka4 24. Tb3 Tb6 25. Tc3 Ta6 26. Tc6 Tb3 27. Tb6 Tb1 28. Tb8 Th1 29. Tb1 Sg1 30. Tb3 Le2 31. Tc3 Lf1 32. Tc6 Ka3 33. Ta8 Kb2 34. Tb6 Kc1 35. Sc6 Kd1 36. Tbb8 Ke1 37. Th8 Dd1 38. Sb8 Lb2 39. Lb7 Lc1 40. Lc8 Sd5+ 41. Ke8 Sc3 42. Dh4 Ta3 43. Dd8 Tb3 44. Lf8 Tb1 45. Sf6 Ta1 46. Sg8 Sb1
play all

Lösung von Michel Caillaud. Originalfassung von K. Fabel: SPG in 50.0

17. TT
paul: See P0003894 as a successor. (2013-06-21)
comment

Keywords: Non-Unique Proof Game, Interchange
Genre: Retro
FEN: RNBQKBNR/p1pp1ppp/4p3/1p6/1P6/4P3/P1PP1PPP/rnbqkbnr
Reprints: 4155 FEENSCHACH 12/1958
526 FIDE Album 1956-1958 1961
Input: Gerd Wilts, 1995-06-03
Last update: Alfred Pfeiffer, 2015-01-09 more...

56 - P0001951
Luigi Ceriani
Karl Fabel
Am Rande des Schachbretts 1947

(9+16)
KBP?
(AL: 183,0)

1. a4 c5 2. a5 c4 3. a6 c3 4. b3 d5 5. Lb2 cxb2 6. Sa3 Kd7 7. Sc4 Kc6 8. Se5+ Kb5 9. Ta5+ Kb4 10. Tb5+ Ka3 11. Sef3 Ka2 12. c3 d4 13. Dc1 e5 14. Kd1 e4 15. Kc2 e3 16. Kd3 g5 17. Ke4 g4 18. Kf4 d3 19. Dc2 dxc2 20. h3 c1=T 21. Th2 Ta1 22. Th1 Kb1 23. Th2 Kc1 24. Th1 Lf5 25. Th2 Lb1 26. d3 f5 27. Sd2 exd2 28. Sf3 Sf6 29. Kg5 Ld6 30. Kh6 Sd5 31. Kg7 Se3 32. Kf7 h5 33. Kg7 Ta4 34. Kf7 La2 35. Tb6 d1=L 36. Kg7 Lc2 37. Kf7 Lcb1 38. Kg7 Sd1 39. Kf7 g3 40. Kg7 gxh2 41. e3 h1=T 42. Le2 Sd7 43. Sh2 Sc5 44. Lg4 Se4 45. Kf7 hxg4 46. Kg7 g3 47. Kf7 gxh2 48. Kg7 Te1 49. Kf7 Te2 50. Kg7 Tc2 51. Kf7 h1=T 52. Kg7 Te1 53. Kf7 Lh2 54. Kg7 Sg3 55. Kf7 Sh1 56. Kg7 Tah4 57. Kf7 Kd2 58. Kg7 Ke2 59. Kf7 Tc1 60. Kg7 Lc2 61. Kf7 Ta1 62. Kg7 Lab1 63. Kf7 Ta5 64. Kg7 La2 65. g3 Kf3 66. Tb4 Tb5 67. Kf7 Te2 68. Kg7 Lcb1 69. Kf7 Tc2 70. Kg7 Tc1 71. Kf7 Lc2 72. Kg7 Ta1 73. Kf7 Lab1 74. Kg7 Ta5 75. Ta4 bxa6 76. Ta1 La2 77. Tc1 Lcb1 78. Tc2 f4 79. Te2 Lc2 80. Te1 Lab1 81. Tg1 Ta1 82. Tg2 La2 83. Kf7 Tc1 84. Kg7 Lcb1 85. Kf7 Tc2 86. Kg7 Te2 87. Kf7 Te1 88. Kg7 Tg1 89. Kf7 Lc2 90. Kg7 Lab1 91. Kf7 Ta5 92. Kg7 Ta1 93. Kf7 La2 94. Kg7 Tc1 95. Kf7 Lcb1 96. Kg7 Tc2 97. Kf7 Te2 98. Kg7 Tee1 99. Kf7 Tef1 100. Kg7 Lc2 101. Kf7 Lab1 102. Kg7 a5 103. Kf7 a4 104. Kg7 a3 105. Kf7 a2 106. Kg7 a1=T 107. Kf7 La2 108. Kg7 Tc1 109. Kf7 Lcb1 110. Kg7 Tc2 111. Kf7 Te2 112. Kg7 Tee1 113. Kf7 Lc2 114. Kg7 Lab1 115. Kf7 a5 116. Kg7 a4 117. Kf7 a3 118. Kg7 a2 119. Kf7 a1=T 120. Kg7 La2 121. Kf7 Tc1 122. Kg7 Lcb1 123. Kf7 Tc2 124. Kg7 Ke2 125. Kf7 Kd2 126. Kg7 Kc1 127. Kf7 Tce2 128. Kg7 Kd2 129. Kf7 Lc2 130. Kg7 Lab1 131. Kf7 Ta1 132. Kg7 La2 133. Kf7 Tc1 134. Kg7 Lcb1 135. Kf7 Tc2 136. Kg7 Kc1 137. Kf7 Tcd2 138. Kg7 Lc2 139. Kf7 Kb1 140. Kg7 Ka1 141. Kf7 Lab1 142. Kg7 Ka2 143. Kf7 Ka3 144. Kg7 La2 145. Kf7 Lcb1 146. Kg7 Tc2 147. Kf7 Tc1 148. Kg7 Lc2 149. Kf7 Ta1 150. Kg7 Lcb1 151. Kf7 Tc2 152. Kg7 Dd5 153. Kf6 Df3 154. Kf7 De2 155. Kg7 Dd2 156. Kf7 Dc1 157. Kg7 Tce2 158. Kf7 Dd2 159. Kg7 Lc2 160. Kf7 Tc1 161. Kg7 Lcb1 162. Kf7 Tc2 163. Kg7 Dc1 164. Kf7 Tcd2 165. Kg7 f3 166. Kf7 Lc2 167. Kg7 Da1 168. Kf7 Lcb1 169. Kg7 Tc2 170. Kf7 Tc1 171. Kg7 Lc2 172. Kf7 Lab1 173. Kg7 Ka2 174. Kf7 Ted2 175. Ke7 Tee2 176. Kd7 Tfe1 177. Kc7 Tgf1 178. Kb7 Lg1 179. Ka7 T4h6 180. Th2 Tb6 181. Tg2 Th7+ 182. Ka8 Thb7 183. Th2 Tb8+
play all

Yoav Ben-Zvi: The Move Length Record has been surpassed, after more than 70 years, by Goldsteen, see P1345778. (2019-07-07)
: Fixed ambiguous moves in notation. (2007-10-02, hidden)
-: 1. a4 c5 2. a5 c4 3. a6 c3 4. b3 d5 5. Bb2 cxb2 6. Na3 Kd7 7. Nc4 Kc6 8. Ne5+ Kb5 9. Ra5+ Kb4 10. Rb5+ Ka3 11. Nef3 Ka2 12. c3 d4 13. Qc1 e5 14. Kd1 e4 15. Kc2 e3 16. Kd3 g5 17. Ke4 g4 18. Kf4 d3 19. Qc2 dxc2 20. h3 c1=R 21. Rh2 Ra1 22. Rh1 Kb1 23. Rh2 Kc1 24. Rh1 Bf5 25. Rh2 Bb1 26. d3 f5 27. Nd2 exd2 28. Nf3 Nf6 29. Kg5 Bd6 30. Kh6 Nd5 31. Kg7 Ne3 32. Kf7 h5 33. Kg7 Ra4 34. Kf7 Ba2 35. Rb6 d1=B 36. Kg7 Bc2 37. Kf7 Bcb1 38. Kg7 Nd1 39. Kf7 g3 40. Kg7 gxh2 41. e3 h1=R 42. Be2 Nd7 43. Nh2 Nc5 44. Bg4 Ne4 45. Kf7 hxg4 46. Kg7 g3 47. Kf7 gxh2 48. Kg7 Re1 49. Kf7 Re2 50. Kg7 Rc2 (2007-10-02, hidden)
-: 51. Kf7 h1=R 52. Kg7 Re1 53. Kf7 Bh2 54. Kg7 Ng3 55. Kf7 Nh1 56. Kg7 Rah4 57. Kf7 Kd2 58. Kg7 Ke2 59. Kf7 Rc1 60. Kg7 Bc2 61. Kf7 Ra1 62. Kg7 Bab1 63. Kf7 Ra5 64. Kg7 Ba2 65. g3 Kf3 66. Rb4 Rb5 67. Kf7 Re2 68. Kg7 Bcb1 69. Kf7 Rc2 70. Kg7 Rc1 71. Kf7 Bc2 72. Kg7 Ra1 73. Kf7 Bab1 74. Kg7 R1a5 75. Ra4 bxa6 76. Ra1 Ba2 77. Rc1 Bcb1 78. Rc2 f4 79. Re2 Bc2 80. Re1 Bab1 81. Rg1 Ra1 82. Rg2 Ba2 83. Kf7 Rc1 84. Kg7 Bcb1 85. Kf7 Rc2 86. Kg7 Re2 87. Kf7 Re1 88. Kg7 Rg1 89. Kf7 Bc2 90. Kg7 Bab1 91. Kf7 Ra5 92. Kg7 Ra1 93. Kf7 Ba2 94. Kg7 Rc1 95. Kf7 Bcb1 96. Kg7 Rc2 97. Kf7 Re2 98. Kg7 Ree1 99. Kf7 Ref1 100. Kg7 Bc2 101. Kf7 Bab1 102. Kg7 a5 103. Kf7 a4 104. Kg7 a3 105. Kf7 a2 106. Kg7 a1=R 107. Kf7 Ba2 108. Kg7 Rc1 109. Kf7 Bcb1 110. Kg7 Rc2 111. Kf7 Re2 112. Kg7 Ree1 113. Kf7 Bc2 114. Kg7 Bab1 115. Kf7 a5 116. Kg7 a4 117. Kf7 a3 118. Kg7 a2 119. Kf7 a1=R 120. Kg7 Ba2 121. Kf7 Rc1 122. Kg7 Bcb1 123. Kf7 Rc2 124. Kg7 Ke2 125. Kf7 Kd2 126. Kg7 Kc1 127. Kf7 Rce2 128. Kg7 Kd2 129. Kf7 Bc2 130. Kg7 Bab1 131. Kf7 Ra1 132. Kg7 Ba2 133. Kf7 Rc1 134. Kg7 Bcb1 135. Kf7 Rc2 136. Kg7 Kc1 137. Kf7 Rcd2 138. Kg7 Bc2 139. Kf7 Kb1 140. Kg7 Ka1 141. Kf7 Bab1 142. Kg7 Ka2 143. Kf7 Ka3 144. Kg7 Ba2 145. Kf7 Bcb1 146. Kg7 Rc2 147. Kf7 Rc1 148. Kg7 Bc2 149. Kf7 Ra1 150. Kg7 Bcb1 151. Kf7 Rc2 152. Kg7 Qd5 153. Kf6 Qf3 154. Kf7 Qe2 155. Kg7 Qd2 156. Kf7 Qc1 157. Kg7 Rce2 158. Kf7 Qd2 159. Kg7 Bc2 160. Kf7 Rc1 161. Kg7 Bcb1 162. Kf7 Rc2 163. Kg7 Qc1 164. Kf7 Rcd2 165. Kg7 f3 166. Kf7 Bc2 167. Kg7 Qa1 168. Kf7 Bcb1 169. Kg7 Rc2 170. Kf7 Rc1 171. Kg7 Bc2 172. Kf7 Bab1 173. Kg7 Ka2 174. Kf7 Red2 175. Ke7 Ree2 176. Kd7 Rfe1 177. Kc7 Rgf1 178. Kb7 Bg1 179. Ka7 R4h6 180. Rh2 Rb6 181. Rg2 Rh7+ 182. Ka8 Rhb7 183. Rh2 Rb8+ (2007-10-02, hidden)
Glorfindel: There are two remaining ambiguities in the move list. They should be 98... Tee1 and 179... T4h6. (2019-06-13, hidden) more ...
comment

Keywords: Non-Unique Proof Game, Non-standard material (tttttl), Promotion (tltttt), Move Length Record
Genre: Retro
FEN: Kr6/8/1r6/8/8/1PPPPpPP/kpbrrP1R/qbrnrrbn
Reprints: 127 32 personaggi e 1 autore 1955
1438 FIDE Album 1945-1955 1964
Die Schwalbe 3, p. 81, 02/1970
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-05-09 more...

57 - P0001952
Luigi Ceriani
Karl Fabel
Am Rande des Schachbretts 1947

(11+16)
111 Züge ohne Schlag

comment

Keywords: Promotion, Non-standard material, Move Length Record
Genre: Retro
FEN: 8/p1b2p1p/8/8/8/1PPPPKPP/bpqrrPBb/kbbnrRRn
Reprints: 128 32 personaggi e 1 autore 1955
1367 FIDE Album 1945-1955 1964
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2021-08-04 more...

58 - P0001968
Karl Fabel
Rund um das Schachbrett 1955

(13+11)
Orthorekonstruktion. Weiß ist am Zug.

AL: 1. ... Te2 ... 93.Te1-e3 Td1-e1 94.Te3-e2 Te1-d1 95.Te2-e1; das Tempoverlustmanöver kann aber auch durch Td1-f1 realisiert werden.
play all

Mario Richter: Die Originalforderung lautet: "Schwarz am Zuge; Zugwechsel in 185.5 Zügen bei unveränderter Stellung" (Im FIDE-Album ist die Forderung definitv falsch angegeben.)
Außerdem wird in RudS Ceriani als Co-Autor genannt (Zitat: "... wie der Verfasser gemeinsam mit Dr.Ceriani fand"). (2010-05-24)
comment

Keywords: Ortho-reconstruction, Promotion, Non-standard material
Genre: Retro
FEN: 8/8/8/8/4PppP/1p1prkrR/1PbP1ppR/KBBrRRRR
Reprints: 40 32 personaggi e 1 autore 1955
1441 FIDE Album 1945-1955 1964
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2010-05-24 more...

59 - P0001969
Karl Fabel
148 Problem 5-6 12/1951
2. Preis

(13+13)
Ergänze eine weiße Figur, dann #1!

+wSe3, dann 1. ... Dxd4#
R: 1.Sf5-e3 De3-d3 2.Sh4-f5 Dd3-e3 3.Sg6-h4 De3-d3 4.Se5-g6 b5-b4 5.Sd3-e5 Sd1-b2 6.Sb2-d3 Dd3-e3 7.Te3-f3 a6xBb5 8.Tf3-e3 Se3-d1 9.b4-b5 Sf1-e3 10.Te3-f3 a7-a6 11.Tf3-g3 Sg3-f1 12.b3-b4 Sh1-g3 13.g3-g4 h2-h1=S
play all

Henrik Juel: +wSe3; 1... Dxd4#, not 1.Sd1? -1.Sf5 De3 -2.Se7 Dd3 -3.Sg6 De3 -4.Se5 b5 -5.Sd3 Sd1 -6.Sb2 Dd3 -7.Te3 a6xPb5 -8.Tf3-e3 Se3 -9.b4 Sf1 -10.Te3 a7 -11.Tf3-g3 Sg3 -12.b3 Sh1 -13.g3 S=h2 etc. (2004-01-12)
Sally: Problem mit Retro Opposition. Zur Stellungsanalyse sei angemerkt, dass die wBBe4/f4/ und g4 je eimal geschlagen, und zwar den sBe, den 2. sT und die auf h1 entstandene UW -
Figur. eine Verführung beszeht darin, einen wS auf b6 zu setzen und mit Sa4 mattzusetzen, eine andere, einen wS. auf e3 einzufügen und mit Sd1 mattzusetzen. In der Lösung wird
der S. tatsächlich auf e3 eingesetzt, aber Schwarz ist am Zug und setzt mit Dxd4#. Die Rücknahme veräuft zB. wie folgt: 1. Sf5-e3 - De3-d3, 2. Sh4-f5 - Dd3-e3,.....
12. Bb3-b4 - sh1-g3, 13. Bg3-g4 - Bh2-h1S, 14. Le6-h3 -
- Bh3-h2, 15. Bh2xSg3, und die Stellung wird frei. Setzt man den S. auf b6 und nimmt, mit Schwarz beginnend, in ähn-
licher Weise zurück, so benötigt man den Tempozug Bb5-b4 nicht uns scheitert trotzdem am Retropatt! S. 292 Nr. 30
Schwalbe Aug. 1981. (2011-12-05)
comment

Keywords: Whose move?, Retro Opposition, Add pieces
Genre: Retro
FEN: 8/1pp5/2p5/2K5/1pPPPPP1/2kq1RRB/PnrbPpp1/Qbn1B3
Reprints: 1443 FIDE Album 1945-1955 1964
(30) Die Schwalbe 70 08/1981
(10) feenschach 143 08-10/2001
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2010-05-24 more...

60 - P0002365
Karl Fabel
Werner Keym
Basler Nachrichten 1967

(13+3)
Problem ohne Worte

1. fxg3ep#
play all

Sally: Die weißen Bauern schlugen 13-mal. Schwarz schlug 3-mal:
sBh:Sg, sBg:h und s Figur :Ba nebst a7-a1X ( oder Schwarz
sB:Xb-b1X nebst a2-a8X). Daher war der letzte Zug mangels
Schlagopfer nicht e5:Xf4? (nebnst 1 Lf2#); sondern g2-g4. Es folgt 1.Bf4.g3 en p.! ( Man kann dieses Stammproblem un-
ter rein ökonomischem Aspekt Df6 durch Lf6 und Lg1 durch Sg1 ersetzen; dannentfällt 1. Lf2#?)Nr. 137 eigenartige S. Probl. ( W. Keym 2010). (2011-11-30)
comment

Keywords: Next move? (ep), En passant, Type A, Ending move?
Genre: Retro
FEN: 8/6P1/5QP1/5PPP/4BpPk/5P1p/4R2K/6BR
Reprints: (III) Die Schwalbe 137 10/1992
Thema Danicum 87 1997
Input: Gerd Wilts, 1995-06-03
Last update: Alain Brobecker, 2022-02-18 more...

61 - P0002495
Karl Fabel
2977 The Fairy Chess Review 12/1937

(2+1) C+
-1(w+s), dann h#1

R: 1. c7-c8=L+ Ka7xTb7, dann 1. Ka8 c8=D#
play all

comment

Keywords: Help retractor, Promotion (L)
Genre: Retro
Computer test: Popeye Windows-32Bit v4.55 (312 MB) & Rawbats
FEN: 2B5/1k1K4/8/8/8/8/8/8
Reprints: Problemkiste 92 04/1994
Input: Gerd Wilts, 1995-06-03
Last update: hpr, 2010-05-28 more...

62 - P0003422
Karl Fabel
Heidelberger Tageblatt 31/12/1954

(4+14)
h#1 AP

1. bxc3ep 0-0-0#
play all

comment

Keywords: En passant as key, Castling (wg), a posteriori (AP)
Genre: h#, Retro
FEN: rn1q2nr/1p1p3p/8/N1p1p3/1pPkp3/4p3/8/R3K3
Reprints: (I) Problem 37-40 09/1956
(XVII) Problem 79-82 01/1962
(E) Die Schwalbe 1 10/1969
(54) Problem 144-147 12/1971
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-05-24 more...

63 - P0003509
Karl Fabel
10515 The Fairy Chess Review 06/1956

(13+11)
h#1

1. e5 Tf1#
play all

comment

Keywords: Cant Castler, Castling (wk), Rook's corridor
Genre: h#, Retro
FEN: nB2R3/2ppppp1/1p3k1p/2p4P/N1P4P/2P5/1PP1P3/rB2K2R
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 1996-06-02 more...

64 - P0003521
Karl Fabel
7133 The Fairy Chess Review 02/1947
Otto Brennert gewidmet

(12+13)
h#1

1. Kf8 Txh8#
play all

Henrik Juel: 0... Kf8 1.Txh8#. Before any P-captures, White captured Lf8, and sK moved to let sD out via h7 to c3, so he may not castle. (2004-01-12)
VF: Dedicatory 'Otto Brennert zum Gedenken' (2004-01-13)
comment

Keywords: Cant Castler, Castling (sksg)
Genre: h#, Retro
FEN: r3k2r/pp1n1pp1/N2p1p1R/3N4/1n3p1p/2PP4/P1PP1PPP/4K3
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2009-03-22 more...

65 - P0003522
Karl Fabel
7225 The Fairy Chess Review 04/1947

(14+15)
h#2
Weiß zieht an

1. ... Txf7 2. Txf2 Dxa8#
1. ... Dxg2 2.0-0-0 Da8#
play all

Henrik Juel: Attempting to preserve the castling fails: -1... b6 -2.Lh7 Lg8 -3.Tf7 Sf6 -4.b3 Sd5 -5.Tf6 Sc3 -6.Tf7 Sb1 -7.Tf6 S=b2 -8.Tf7 a3xSb2 -9.Tf6 Lf7 -10.Sd3 Lg8 -11.Se5 a4 -12.Sf7 a5 -13.Sh8 Lf7 -14.Lg8 a6 -15.S=h7 a7 -16.h6 h7xSg6 -17.Kh5 Sf3, and the cage opens, but Lg8 cannot be extracted without moving sK. (2004-01-12)
comment

Keywords: Cant Castler, Castling (sg)
Genre: h#, Retro
FEN: r3k1B1/2pp1bp1/4pRp1/1p3PKn/1P3pRB/6bN/P1PPPPrq/6nQ
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-10-28 more...

66 - P0003546
Karl Fabel
4117 The Fairy Chess Review 11/1939

(13+13)
h#1

1. Kd8 Df8#
play all

comment

Keywords: Cant Castler, Castling (sg), Promotion, Non-standard material
Genre: h#, Retro
FEN: r3k3/bRpp1p2/rp1Qp3/rrp5/RP2K3/RP5P/B1PPP3/Rb6
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

67 - P0003553
Karl Fabel
10558 The Fairy Chess Review 08/1956

(14+12)
h#1

1. Td8 Sg7#
play all

Henrik Juel: Ta8 has moved for tempo. (2004-01-12)
comment

Keywords: Cant Castler, Castling (sg)
Genre: h#, Retro
FEN: r3k1b1/B1pppp1N/1p4p1/pQ3p1N/2P2PP1/1P6/2PPPP2/nB5K
Input: Gerd Wilts, 1995-06-03

68 - P0003557
Karl Fabel
921 Die Schwalbe 05/1960

(14+15)
h#1

1. Kd8 Tf8#
play all

Henrik Juel: Attempting to preserve the castling fails, like in P0003522 (2004-01-12)
comment

Keywords: Cant Castler, Castling (sg)
Genre: h#, Retro
FEN: r3k1b1/P1ppn1pB/1p2pRp1/5PK1/5pRB/1P4bN/2PPPPrq/6nN
Input: Gerd Wilts, 1995-06-03

69 - P0003824
Karl Fabel
Deutsche Schachblätter 1950

(6+1)
Ergänze den sK, dann #1

+sKc1?, 1. 0-0?
+sKf3, 1. 0-0#
play all

comment

Keywords: Add pieces (k), Castling (wk), Cant Castler
Genre: Retro
FEN: 8/8/8/8/3Bb3/8/1PP3R1/4K2R
Reprints: 141 Arbeiter-Zeitung (Wien) 15/02/1953
(V) Problem 17-18 08/1953
RA26 diagrammes 19 01-02/1976
92 Probleme für Tiger 8 08/1984
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2013-04-30 more...

70 - P0003825
Karl Fabel
Am Rande des Schachbretts 1947

(15+15)
#1 (wer?)

Verführung: 1. Sxf7#?, aber Paritätsanalyse zeigt, daß Schwarz am Zug ist, deshalb:
1. ... Sxc2#
play all

Sally: Wenn man versucht, in einer Beweispartie von der Anfangssellung bis zur Diagrammstellung zu gelangen, so wird man feststellen, dass Weiß in jedem Fall einmal mehr
zieht als Schwarz und daher nichr am Zug sein kann. Also löst nicht Sxf7#? sondern !. Sxc2#! Nr. 336 Eigenartige S.
Probl. (W. Keym 2010). (2011-12-01)
comment

Keywords: Parity Argument, Whose move?
Genre: Retro
FEN: 1rbknbrN/pppppppp/8/8/8/8/PPPPPPPP/nRBNKBR1
Reprints: (II) Problem 17-18 08/1953
16 L'Echiquier de France 04/1957
27 Kurioses Schach 1975
(D45) feenschach 29 08-09/1975
RA27 diagrammes 19 01-02/1976
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2011-12-17 more...

71 - P0003857
Karl Fabel
Deutsche Schachblätter 1951

(10+4)
#1

1. hxg6ep#?, aber zuletzt g7-g5 ist illegal (der e.p.-Key wäre übrigens selbst dann nicht gerechtfertigt, wenn R:g7-g5 legal wäre).
0. ... g4 (Zugzwang) 1.hxg4#
play all

AZW: 1. hxg6ep# Das sieht man auf den ersten Blick und hohnlächelt über den Problemredakteur, der einem solche Nichtigkeit vorsetzt. Aber gemach: erstens müßte bewiesen werden, daß der letztvorangegangene Zug von Schwarz g7-g5 war. Doch nehmen wir sogar an, das sei wirklich geschehen. Da taucht sofort eine zweite Frage auf: Wie viele schwarzen Steine mußten von den weißen Bauern geschlagen werden, damit sie in ihre gegenwärtige Position gelangen konnten? Rechnen wir nach: e6 kommt von der b-Linie, was drei Schlagfälle erforderte, f7 von der c-Linie (ebenfalls drei Schlagfälle), f3 von der e-Linie (ein Schlagfall, h4 von der g-Linie (ein Schlagfall) und h7 von der d-Linie (vier Schlagfälle). Das gibt zusammen zwölf Schlagfälle, Schwarz hat noch vier Figuren auf dem Brett, also könnten wirklich zwölf von Weiß geschlagen worden sein. Wenn jedoch der sBg5 unmittelbar vorher noch auf g7 stand, war der Lf8 eingesperrt gewesen und nie ins Freie gekommen, hatte also unter gar keinen Umständen von einem wB verspeist werden können. Daher ist die ganze Stellung theoretisch unmöglich und widerspricht den Spielgesetzen, es sei denn, man läßt zuerst Schwarz ziehen: 0. ... g5-g4 wonach 1. h3xg4# Matt folgen kann. Das allein ergibt die den Spielgesetzen entsprechende Lösung.

Henrik Juel: The above is a try, I believe; wP's captured all missing black men, including orig. Lf8. Solution: 0... g4 1.hxg4#. (2004-01-12)
comment

Keywords: En passant as key
Genre: Retro
FEN: 8/4pP1P/4Pp1R/5KpP/7k/5P1P/5P1R/8
Reprints: (III) Problem 17-18 08/1953
186 Arbeiter-Zeitung (Wien) 28/01/1954
(VII) Problem 37-40 09/1956
19 L'Echiquier de France 07/1957
RA68 diagrammes 28 07-08/1977
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2013-05-01 more...

72 - P0003972
Karl Fabel
Josef Haas
(D49) feenschach 32 01-03/1976

(8+2)
s#1 (wer?)

1. axb2#

comment

Keywords: Next move?
Genre: Retro
FEN: 8/8/8/8/PN6/p7/NPPP4/k1KB4
Reprints: RA164 diagrammes 74 11-12/1985
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 1996-08-15 more...

73 - P0004001
Karl Fabel
The Problemist 1975
Preis

(14+14)
a) Woher kommen die BBc4 und c5?
b) Wieviele Züge geschahen seit dem letzten Schlagfall?

a) wBa2xLb3-c4xDc5; sBd7-d6xLc5-c4
b) mindestens 136 Einzelzüge sind seit dem letzten Schlag geschehen, z.B.
R: 1. Sg3-f5 Kg1-g2 2. Sf1-g3 Kh1-g1 3. Ta4-a3 Kg1-h1 4. Tb4-a4 Kh1-g1 5. De1-d1 Kg1-h1
6. Kd1-c1 Kh1-g1 7. Tc1-b1 Kg1-h1 8. Lb1-a2 Kh1-g1 9. Ta2-b2 Kg1-h1
10. Ta4-a2 Kh1-g1 11. La2-b1 Kg1-h1 12. Tb1-c1 Kh1-g1 13. Kc1-d1 Kg1-h1
14. Kb2-c1 Kh1-g1 15. Kc3-b2 Kg1-h1 16. Dc1-e1 Kh1-g1 17. Da3-c1 Kg2-h1
18. Sg3-f1 Kg1-g2 19. Tb2-b1 Kf1-g1 20. Sf5-g3 Ke1-f1 21. Sh4-f5 Kf1-e1
22. Sf3-h4 Kg2-f1 23. Tb1-b2 e6-e5 24. Th1-b1 Kf1-g2 25. Sg1-f3 Ke1-f1
26. Kd4-c3 Kd1-e1 27. Db2-a3 Kc1-d1 28. Dc3-b2 Kb2-c1 29. De3-c3 Kc1-b2
30. Tb5-b4 Kb2-c1 31. Sf3-g1 Ka3-b2 32. Tb4-a4 Kb2-a3 33. Tg1-h1 Kc1-b2
34. Tg8-g1 Kd1-c1 35. Se5-f3 Ke1-d1 36. Ta4-b4 Kf1-e1 37. Lb1-a2 Kg2-f1
38. g7-g8=T Kg1-g2 39. Ta2-a4 Kf1-g1 40. Tb2-a2 Kg1-f1 41. La2-b1 Kf1-g1
42. Sf3-e5 Kg2-f1 43. Tb1-b2 e7-e6 44. Th1-b1 Kf1-g2 45. Sg1-f3 Ke1-f1
46. Tb4-b5 Kd1-e1 47. g6-g7 Kc1-d1 48. g5-g6 Kb2-c1 49. Sf3-g1 Ka3-b2
50. Tg1-h1 Kb2-a3 51. Tg4-g1 Kc1-b2 52. Th4-g4 Kd1-c1 53. Ta4-b4 Ke1-d1
54. Se5-f3 Kf1-e1 55. Lb1-a2 Kg1-f1 56. Ta2-a4 Kg2-g1 57. Tb2-a2 Kg1-g2
58. La2-b1 Kh1-g1 59. Sf3-e5 Kg2-h1 60. Tb1-b2 f7-f6

61. Th1-b1 Kf1-g2 62. Sg1-f3 Ke1-f1 63. Df3-e3 Kd1-e1 64. Dg2-f3 Kc1-d1 65. Ke5-d4 Kb2-c1
66. Df1-g2 Ka3-b2 67. Dd1-f1 Kb4-a3 68. Kf4-e5 Kb5-b4 69. b4xDc5 Dc6-c5
70. Kg3-f4 c5-c4 71. g4-g5 d6xLc5 72. Ld4-c5 Dd7-c6 73. Lb2-d4 Kc6-b5
74. Lc1-b2 Ld4-b6 75. b2-b3 Sb6-a8 76. Kg2-g3 Ta8-a7 77. Kf1-g2 Th8-a8
78. g3-g4 Dd8-d7 79. Ke1-f1 Kd7-c6 80. Ld5-a2 Ke8-d7 81. Lg2-d5 Ta8-a6
82. Th5-h4 a7-a5 83. Ta5-h5 Sb3-a1 84. Ta2-a5 Lg7-d4 85. Lf1-g2 Lf8-g7
86. g2-g3 g3xSh2 87. Sf3-h2 g4-g3 88. h2-h3 Sd4-b3 89. Ta1-a2 Sf5-d4
90. Sd4-f3 Sh6-f5 91. Sb5-d4 Sg8-h6 92. Sa3-b5 Sd7-b6 93. b3-b4 Sb8-d7
94. a2xLb3 Le6-b3 95. Tb1-a1 Lc8-e6 96. Ta1-b1 d7-d6 97. Tb1-a1 g5-g4
98. Ta1-b1 g7-g5 99. Sb1-a3
play all

hans: a) a2xBb3-b4xQc5 d7-d6xBc5-c4
b) 93 moves
PAS:1. h3 g5 2. Na3 g4 3. Nc4 g3 4. Ne5 Na6 5. Nef3 Nc5 6. Nh2 gxh2 7. g4 d6 8.
Bg2 Be6 9. Kf1 Bb3 10. axb3 Nf6 11. Ra4 Nd5 12. Rf4 Nb6 13. b4 Nb3 14. Bd5
Na1 15. Ba2 a5 16. b3 Ra6 17. Bb2 Kd7 18. Bd4 Kc6 19. Be3 Qd7 20. g5 Bg7
21. g6 Bd4 22. g7 Rha8 23. g8=R R8a7 24. Kg2 Na8 25. Kf3 Bb6 26. Bc5 dxc5
27. Qf1 c4 28. Qg2 Qd6 29. Rfg4 Kb5 30. Rh8 Qc5 31. Rg7 Qd6 32. Kg4 Qc5 33.
Rhg8 Qd6 34. Kg5 Qc5+ 35. bxc5 Kb4 36. Qc6 Ka3 37. Qd7 Kb2 38. Qc6 Kc1 39.
Qb5 Kd1 40. Qd7 Ke1 41. Qb5 Kf1 42. Nf3+ Kg2 43. Rb1 e6 44. Rb2 Kf1 45. Nh4
Ke1 46. Kg4 Kd1 47. Kg3 Kc1 48. Kg2 Kd1 49. Kf1 Kc1 50. Rg1 Kd1 51. Rh1 Kc1
52. Nf3 Kd1 53. Ng1 Kc1 54. Bb1 Kd1 55. Ra2 Kc1 56. Ra4 Kd1 57. Ba2 Kc1 58.
Kg2 Kd1 59. Kg3 Ke1 60. Kg4 Kf1 61. Nf3+ Kg2 62. Rb1 f6 63. Rb2 Kf1 64. Nh4
Ke1 65. Kg3 Kd1 66. Kg2 Kc1 67. Kf1 Kd1 68. Rg1 Kc1 69. Rh1 Kd1 70. Nf3 Kc1
71. Ng1 Kd1 72. Bb1 Kc1 73. Rba2 Kd1 74. R2a3 Kc1 75. Ba2 Kd1 76. Kg2 Ke1
77. Kf3 Kf1 78. Ke3 Ke1 79. Ke4 Kf1 80. Kd4 Ke1 81. Kc3 Kf1 82. Nf3+ Kg2
83. Rb1 e5 84. Rb2 Kh1 85. Nd4 Kg1 86. Nf5 Kh1 87. Ng3+ Kg1 88. Nf1 Kh1 89.
Rb1 Kg1 90. Re1 Kh1 91. Bb1 Kg1 92. Ra2 Kh1 93. Rb2 Kg1 94. Ba2 Kh1 95.
Rbb1 Kg1 96. Rbd1 Kh1 97. Bb1 Kg1 98. Ra2 Kh1 99. Qa4 Kg1 100. Qa3 Kh1 101.
Qb2 Kg1 102. Ra4 Kh1 103. Ba2 Kg1 104. Rb1 Kh1 105. Qc1 Kg1 106. Rb2 Kh1
107. Bb1 Kg1 108. Rba2 Kh1 109. R2a3 Kg1 110. Ba2 Kh1 111. Qb2 Kg1 112. Rb1
Kh1 113. Qc1 Kg1 114. Qe1 Kh1 115. Kb2 Kg1 116. Kc1 Kh1 117. Kd1 Kg1 118.
Rc1 Kh1 119. Bb1 Kg1 120. Ra2 Kh1 121. Rb2 Kg1 122. Ba2 Kh1 123. Rcb1 Kg1
124. Kc1 Kh1 125. Qd1 Kg1 126. Ra3 Kh1 127. Ng3+ Kg2 128. Nf5 *
(same matrix in P0001207 P0001216 P0001383 P0001419 P0001739 P0004212 P0004215 P0004241 P0004243 P0005895) (2011-12-15)
comment

Keywords: Promotion, Minimal number of moves of a piece, Non-standard material
Genre: Retro
FEN: n7/rpp4p/rb3p2/p1P1pN2/2p5/RP5P/BRPPPPkp/nRKQ4
Reprints: feenschach 41 01-03/1978
RA196 diagrammes 79 11-12/1986
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2011-12-15 more...

74 - P0004043
Karl Fabel
Parallele 50 25/11/1949

(2+1)
Weiß nimmt 1 Zug zurück, dann #2

R: 1. "0-0", dann 1. "0-0-0" Ka1 2. Ta3#
play all

Duplicate Diagram: P1387796

Veröffentlicht in der Rubrik "Professeur Cosinus"

steingetreu mit gleicher Forderung und Idee vorweggenommen durch P1387796
Mario Richter: Vorwärtsspiel m.E. zumindest teilweise vorweggenommen durch P1359470. (2019-01-12)
A.Buchanan: This one, in constrast to P1359470, remains a joke and a good one. (2019-01-12)
comment

Keywords: Odds game, Help retractor, Joke, Castling (wb), Fabel-Opus (436), Aristocrat, Minimal, Miniature, anticipated (P1387796)
Genre: Retro
FEN: 8/8/8/8/8/7R/k7/6K1
Reprints: 490 La Composition Contemporaine [Martin] 1951
(9) diagrammes 86 07-09/1988
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2021-03-24 more...

75 - P0004089
Karl Fabel
Die Schwalbe 1949
1. Preis

(11+14)
#1

1. Txg4#

Henrik Juel: -1.Lg8 Sf5 ... -5.Lg8 S=c2 -6.Lf7-g8 b3xSc2 -7.Sd4 Lg8 -8.Sf5 Lh7 -9.Sh4 Se3 -10.Sg2 Sc4 -11.Lg8 Se3 -12.Sh6 Sg4 -13.Sf7 b6 -14.Sh8 b4 -15.Lf7-g8 Lg8 -16.S=h7 b5 -17.h6 h7xg6 -18.Kh6 etc. (2004-01-12)
comment

Keywords: Whose move?, Promotion, Retro Opposition, Non-standard material
Genre: Retro
FEN: 4B3/3pPBpb/3pp1pn/1p4K1/5PN1/5prk/1P1PPrn1/4bBQ1
Reprints: (III) Problem 3-4 09/1951
(IX) Problem 7-9 03/1952
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

76 - P0004111
Karl Fabel
Die Schwalbe 11-12/1950
1. Preis

(13+15)
#1 (wer?)

Henrik Juel: 1... Sxb8#, not 1.La2? -1.Td6 Sf8-h7 -2.Td5 Se6 -3.Td6 Sf4 -4.Te6 Se2 -5.Td6 Sg3 -6.Te6 Se4 -7.a5 Sd6 -8.Sd8 Sb7 -9.Td6 Te6 -10.a4 Tf6-e6 -11.Se6 d4 -12.Sf8 Te6 -13.a3 Tf6-g6 -14.Sg6 d5 -15.Sh8 g6 -16.S=h7 etc. (2004-01-12)
comment

Keywords: Whose move?
Genre: Retro
FEN: qBN1b3/pNRnpPPn/P1K1Rrrb/2p1ppp1/2k5/2Pp4/2PP4/1B6
Reprints: (II) Problem 5-6 12/1951
1130 FEENSCHACH 04/1952
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 1997-02-16 more...

77 - P0004112
Karl Fabel
Luigi Ceriani
Problem 5-6 12/1951
6. Preis

(3+9)
Welches war der letzte Zug?

R: 1. g4xDh5+
play all

comment

Keywords: Last Move? (BxD), Type C
Genre: Retro
FEN: 8/1p1pp1p1/p1p2pkp/7P/5K2/6R1/8/8
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2012-04-15 more...

78 - P0004131
Karl Fabel
256 Problem 10-12 12/1952
H. Stempel zum 50. Geburtstag gewidmet

(13+13)
Darf Weiß mattsetzen?

Henrik Juel: No, 1.Dd2? is illegal, because Black has the move. -1.Sa5 Sf3 -2.Sc4 Sh4 -3.Tf3 Sf5 -4.Sa5 Sg3 -5.Sc4 Sh1 -6.Tg3 Tf3 -7.Se3 Sa3 -8.Sc2 Te3, Sa3 uncaptures wPa6 and retracts to f5, while wT marks time on f3,g3, then -20.Tg3 S=h2 -21.Tf3 Sg3 -22.a5 Sh1 -23.g3 Lf5 -24.a4 h3 -25.a3 g4xSh3 etc. (2004-01-12)
comment

Keywords: Retro Opposition, Promotion (L), Non-standard material
Genre: Retro
FEN: 8/pp3p2/3p4/3K4/3pPPP1/1N1kr1Rb/nPn1pPP1/RBQnnB2
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

79 - P0004134
Karl Fabel
364 Problem 15-16 05/1952

(15+14)
#1 (wer?)

Henrik Juel: 1.gxf3#, not 1... Txe7? -1... Sb3 -2.Tc6-d6 Sa5 -3.Td6 Sc4 -4.Tc6-d6 Sd6 -5.De8 Sf7 -6.Td6 Tc6 -7.Dd8 Tc7-c6 -8.h2 Tc6 -9.Dc7 f4 -10.Db8 Tc7-c6 -11.Da8 Tc6 -12.D=a7 Tc7-c6 -13.Tc6-b6 b6 -14.Lc4 f5 -15.a6 a7xDb6 -16.Db3 f6 -17.Tb6 Tc6 etc. (2004-01-12)
comment

Keywords: Whose move?, Retro Opposition, Promotion, Non-standard material
Genre: Retro
FEN: 2b2BqR/1prrPQpN/BR1RK2p/1pppp3/4k3/4Pp1P/1PP3P1/n2N4
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

80 - P0004138
Karl Fabel
Die Schwalbe 1952
3. Preis

(14+13)
#1

hans: R: -1. Rh3xSh2# Bf7-g8 -2. Bb7-a6 Bg8-f7 -3. Ba8-b7 Bf7-g8 -4. a7-a8=B Bg8-f7 -5. a6-a7 Bf7-g8 -6.a5-a6 b7xSc6 -7.Sd4-c6 Bg8-f7 -8. Sf3-d4 Sg4-h2 -9. Sh2-f3 Se3-g4 -10. a4-a5 Sd5-e3 -11. a3-a4 Sc3-d5 -12. a2-a3 Se4-c3 -13. Rh5-g5 Sg5-e4 -14. Rh8-h5 Bf7-g8 -15. h7-h8=R Bg8-f7 -16. h6-h7 Bf7-g8 -17. Kh5-h4 h7xQg6 (white captures cxdxe6 and a7 on the spot)

a2-a4 or a2-a3 depends on if you start with Bf7 or Bg8. Black must make last move for there is no #1 for black!
In my eyes no 'preis'-winner. (2011-12-08)
comment

Genre: Retro
FEN: 3BN1b1/2prP1p1/B1pprbp1/1P2ppR1/7K/6PR/3PPPRn/5B1k
Reprints: Problem 15-16 05/1952
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2005-11-12 more...

81 - P0004140
Karl Fabel
Deutsche Schachblätter 1951

(8+4)
#1

Schwarz zieht an!
play all

comment

Keywords: Whose move?
Genre: Retro
FEN: n1NrN1n1/3k4/2R1RP1P/3K4/6B1/8/8/8
Reprints: (I) Problem 17-18 08/1952
Input: Gerd Wilts, 1995-06-03

82 - P0004141
Karl Fabel
1071 The Problemist FCS 12/1933

(8+1) C+
#1

1. ... ... 2. 0-0?
1. ... Kxg2 2. e5#
1. ... Kxf4 2. Df6#
play all

more ...
comment

Keywords: Castling (wk), No legal last move for Black, Castling in the forward play, Fabel-Opus (82)
Genre: Retro
Computer test: HC+ Popeye 4.61 with analysis
FEN: 8/8/2Q5/8/4PBN1/3P1k2/6R1/4K2R
Reprints: (IV) Problem 17-18 08/1952
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-05-08 more...

83 - P0004142
Karl Fabel
Die Welt 1952

(12+8)
Ergänze den sK, dann #1

+sKh8, dann 1. Txf8#
play all

Henrik Juel: White played d6xPe7xDd8=T, so sK never left the 8th row. (2004-01-12)
Sally: Apard ist die Verführung, die Ergänzung von sKc1? nebst 1. 0-0#. Der sK. hat aber nie die 8. Reihe verlassen, wie die
Stellungsgenese zeigt: wS:Lf8,sS:Lc1, sS:f1, 0-0, sB:Db-b3:
Ta2-a1X, wBh2: Tg3:Se5: Xd6: Bc7: Dd8T. Daher löst + sKh8!
und 1. T.f8#. Nr. 243 Eigenartige S. Probl. (W. Keym 2010) (2011-12-01)
comment

Keywords: Add pieces (k), Castling (wksk)
Genre: Retro
FEN: 2bR1r2/1p1ppppp/8/8/2N5/P1P5/1P1PPPP1/N3K2R
Reprints: (V) Problem 17-18 08/1952
Input: Gerd Wilts, 1995-06-03

84 - P0004143
Karl Fabel
Horizont 1947

(7+4)
#1
b) wTa1 nach c2

a) 1. 0-0-0#
b) 1. ... Df1#
play all

siehe P0004305
Henrik Juel: in part a last move could be Kc2-d3 or Kc4-d3
in part b Black has no last move, so he has the move
C+ Popeye 4.61 (2021-03-08)
comment

Keywords: Castling (wg), Whose move?
Genre: Retro
FEN: 8/8/8/2B5/6N1/1P1k1B1b/4N1qr/R3K3
Reprints: (VII) Problem 17-18 08/1952
1166 Problemista 127-130 04-07/1972
Input: Gerd Wilts, 1995-06-03
Last update: Marcin Banaszek, 2021-03-08 more...

85 - P0004144
Karl Fabel
Die Welt 1949

(10+1)
#1
b) Ta1 nach b1

a) 1. 0-0-0#
b) 1. ... Kxc2 2. Dd2#
play all

In 'Schachmaty (Riga)' nachgedruckt ohne Autorangabe innerhalb eines Artikels von A. Herbstman "Es lebe der Einzüger" (mit umgekehrter Zwillingsbildung)
Mario Richter: There seems to be a new feature "[recalculate solution]" not yet explained in the "What's new" section. What exactly does it do?

Regarding the keyword "Whose move?", I would like to replace it with "no legal last move for Black" - any protests? (2020-05-02)
James Malcom: It is done, Mario. (2020-05-02)
A.Buchanan: The animation requires set of steps which is computed based on the stipulation & solution when someone finishes an edit of the solution. If there is a change to the stipulation then the animation isn't automatically recomputed. Historically, this has required editing the solution and making at least a trivial change, e.g. blank character on the end, to force the animation to be recomputed. I guess the [recalculate solution] button does this automatically. I think it only needs to be present if the solution has got red marks in it. (2020-05-02)
A.Buchanan: I think we can downgrade Lc3 to B? (2020-05-02)
comment

Keywords: Castling (wg), No legal last move for Black, Rex solus
Genre: Retro
FEN: 8/8/8/8/1P1PRQ2/2Bk4/BPN5/R3K3
Reprints: (VIII) Problem 17-18 08/1952
Sahs/Shakhmaty (Riga) 4, p. 26, 02/1961
(IV) Problem 79-82 01/1962
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2020-05-02 more...

86 - P0004145
Karl Fabel
Deutsche Schachblätter 1952

(15+3)
#1
b) La6 nach c6, Lg6 nach e6

a) 1. bxc6ep+ oder 1. fxe6ep#
b) 1. ... c4 2. Sb4# oder 1. .... e4 Sf4#
play all

Sally: Der wLc1 wurde auf c1 geschlagen, und einer der Läufer ist eine Umwandlungsfigur. Daher ist zuletzt b6/d6:Xc5?,oder
e6/g6: Xf5? illegal. Die E.-p.-chläge schließe sich aus. die Lösung zu a) ist entweder 1. b5.c6 e.p.#; oder 1. f5:e6 e.p.
(PRA) In der Fassung b) zog zuletzt nicht Schwarz, daher ist
er am Zug: 1. Bc4 - Sb4#; oder 1. Be4 - Sf4#. (keine PRA),
sondern 2 Varianten !. Nr. 366 eigenartige Schach Probleme
(W. Keym 2010). (2011-12-01)
comment

Keywords: Symmetrical position, En passant as key, Whose move?, Promotion, Partial Retro Analysis (PRA)
Genre: Retro
FEN: 8/8/B5B1/1PpKpP2/8/3k4/PPNPNPP1/2RQR3
Reprints: (IX) Problem 17-18 08/1952
(B) Die Schwalbe 1 10/1969
70 Kurioses Schach 1975
(D14) feenschach 27 04/1975
366 Eigenartige Schachprobleme 2010
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2012-01-07 more...

87 - P0004146
Karl Fabel
(X) Problem 17-18 08/1952

(10+4)
#1 SPRA

1. 0-0-0# oder 1. dxe6ep#
play all

Entweder geschah zuletzt e7-e5, dann löst 1. dxe6ep# (1. 0-0-0?? illegal, da e7-e5 den sLh4 zu einem UW-L macht, der auf seinem Weg zum Diagrammfeld zwingend f2 besucht haben muß.)
Bei anderen letzten schwarzen Zügen löst 1. 0-0-0#

In 'Schachmaty (Riga)' nachgedruckt ohne Autorangabe innerhalb eines Artikels von A. Herbstman "Es lebe der Einzüger"
Sally: Matt in 1 Zug SPRA
1. 0-0-0#! oder 1. Bd5xe6 en p.#.
Im 2. Fall war der letzte Zug e7-e5 und die Rochade ist nicht zulässig, weil der Lh4 eine Umwandlungsfigur von g1
oder e1 ist. Diese Lösung gäbe es ohne den Zusatz "SPRA"
nicht; denn es kann nicht nachgewiesen werden, dass der Bauern - Doppelschritt (e7-e5) der letzte Zug war, wie es
die En-passant-Konvention verlangt. Ein zweiteiliges SRRA- Problem. Nr. 386 Eigenartige S. Probl. ( W. Keym 2010). (2011-12-01)
comment

Keywords: Castling (wg), En passant as key, Partial Retro Analysis (PRA) (SPRA)
Genre: Retro
FEN: 8/1B4p1/8/3Pp3/7b/4P3/1P1PPQ1P/R3K2k
Reprints: Sahs/Shakhmaty (Riga) 4, p. 26, 02/1961
(V) Problem 79-82 01/1962
(D23) feenschach 27 04/1975
(15) Die Schwalbe 241 02/2010
15 Retro Corner 02/2010
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2023-08-21 more...

88 - P0004165
Karl Fabel
618 Problem 25-26 10/1954

(13+15)
Darf Schwarz mattsetzen?

Henrik Juel: Yes, 1... Sxb8# is legal. -1.a3xSb4 Sd3 -2.Lb1 Sf2 -3.La2 Se4 -4.Lb1 Tg6 -5.La2 Tf6-e6 -6.Te6 Sd6 -7.Sd8 Sb7 -8.Td6 Te6 -9.Lb1 Tf6-e6 -10.Se6 b4 -11.Sf8 Te6 -12.Sh7 Tf6-g6 -13.Sf8 b5 -14.Sg6 b6 -15.Sh8 g6 -16.S=h7 etc. (2004-01-12)
comment

Keywords: Whose move?, Retro Opposition
Genre: Retro
FEN: qBN1b3/pNRnpPP1/2KRrr1b/2ppppp1/1PkP4/1p6/BPP5/8
Input: Gerd Wilts, 1995-06-03

89 - P0004182
Karl Fabel
187 Braunschweiger Neueste Nachrichten 12/1926

(5+2) C+
#2

1. ... c6 2. b4 Ka3 3. Ta1#
play all

Henrik Juel: C+ Popeye 4.61 (2020-11-30)
A.Buchanan: What is “fabel opus” keyword intended to convey? (2020-11-30)
Henrik Juel: It is an ordered collection of Fabel's chess problems, as I recall (2020-11-30)
A.Buchanan: Oh you mean like a book? :) (2020-11-30)
Mario Richter: Fabel has keeped a detailed track of all his own compositons in a set of black notebooks, the Opus numbers representing the chronological order of the time the respective problem was composed.
see http://www.fabelschach.de/
In the Fabel-Project, there are links into the PDB (still incomplete), the idea of the keyword "Fabel-Opus" is to provide some kind of backlink from the PDB to the Fabel-Project. (2020-11-30)
more ...
comment

Keywords: No legal last move for Black, Fabel-Opus (14)
Genre: Retro, 2#
Computer test: C+ Popeye 4.61 together with retro thinking
FEN: 8/2p5/8/2B5/8/8/kPP5/1RK5
Reprints: (V) Problem 37-40 09/1956
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2021-10-12 more...

90 - P0004183
Karl Fabel
v Die Welt 1949

(8+8)
#2

Henrik Juel: 0... La7+ 1.Sxa7 cxd6/dxc6/fxg6/gxf6 2.Tc8/d7/f7/Tg8#. (2004-01-12)
comment

Keywords: Whose move?
Genre: Retro
FEN: 1b2k3/2ppPpp1/2RPpPR1/1N1pN3/3K4/8/8/8
Reprints: (VI) Problem 37-40 09/1956
Input: Gerd Wilts, 1995-06-03

91 - P0004184
Karl Fabel
Rund um das Schachbrett 1955

(9+4)
#1

1. Df1#

comment

Keywords: Castling (wg), Whose move?
Genre: Retro
FEN: 8/8/8/8/1R1B2P1/1P1k1B1b/2N1N1qr/R3K3
Reprints: (VIII) Problem 37-40 09/1956
Input: Gerd Wilts, 1995-06-03

92 - P0004211
Karl Fabel
(II) Die Schwalbe 243-244 11-12/1953

(13+12)
Schwarz am Zug. Orthorek. (135 Züge von Schwarz)

comment

Keywords: Ortho-reconstruction, Non-standard material
Genre: Retro
FEN: 8/8/8/8/1p2PppP/1P1p1krr/KPbPrppR/1BBrRRRR
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

93 - P0004212
Karl Fabel
(III) Die Schwalbe 243-244 11-12/1953

(14+13) cooked
Wieviele Züge hat der sK mindestens gemacht?

comment

Keywords: Minimal number of moves of a piece, Non-standard material
Genre: Retro
FEN: n7/rpp2p2/rp2p3/b7/1P1p4/RP5P/BRPPPPkp/nRKQ3N
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

94 - P0004215
Karl Fabel
Die Schwalbe 245-246 01-02/1954

(13+13)
Wieviele Züge hat der sK mindestens gemacht?

89 Züge:
R: 1. Sg3-h1 Kg1-g2 2. Sf1-g3+ Kh1-g1 3. Ta2-b2 Kg1-h1 4. Ta3-a2 Kh1-g1 5. Tb2-b1 Kg1-h1
6. Kb1-c1 Kh1-g1 7. Ka2-b1 Kg1-h1 8. Tb1-b2 Kh1-g1 9. Tc1-b1 Kg1-h1
10. Kb1-a2 Kh1-g1 11. Ta2-a3 Kg1-h1 12. Tb2-a2 Kh1-g1 13. Ka2-b1 Kg1-h1
14. Tb1-c1 Kh1-g1 15. Ka3-a2 Kg1-h1 16. Ta2-b2 Kh1-g1 17. Kb4-a3 Kg1-h1
18. Ta3-a2 Kh1-g1 19. Tb2-b1 Kg1-h1 20. Ta2-b2 Kh1-g1 21. Tb1-d1 Kg1-h1
22. Dc1-e1 Kh1-g1 23. Db2-c1 Kg1-h1 24. Te1-b1 Kh1-g1 25. Dc1-b2 Kg1-h1
26. Tb2-a2 Kh1-g1 27. Tb1-b2 Kg1-h1 28. Db2-c1 Kh1-g1 29. Td1-b1 Kg1-h1
30. Dc1-b2 Kh1-g1 31. Ta2-a3 Kg1-h1 32. Tb2-a2 Kh1-g1 33. Tb1-b2 Kg1-h1
34. Ka3-b4 Kh1-g1 35. Ka2-a3 Kg1-h1 36. Da3-c1 Kh1-g1 37. Dc5-a3 Kg1-h1
38. Ka3-a2 Kh1-g1 39. Kb4-a3 Kg1-h1 40. Tb2-b1 Kh1-g1 41. Ta2-b2 Kg1-h1
42. Ta3-a2 Kh1-g1 43. Tb1-d1 Kg1-h1 44. Tb2-b1 Kh1-g1 45. Ta2-b2 Kg1-h1
46. Tb1-e1 Kh1-g1 47. Tb2-b1 Kg1-h1 48. Se3-f1 Kh1-g1 49. Sf5-e3 Kg1-h1
50. Sd4-f5 Kf1-g1 51. Sf3-d4 Kg2-f1 52. Tb1-b2 d4xSc3 53. Th1-b1 Kf1-g2
54. Sg1-f3+ Ke1-f1 55. Tb2-a2 Kd1-e1 56. Sd5-c3+ Ke1-d1 57. Se3-d5 Kd1-e1
58. Sf1-e3+ Kc1-d1 59. Sf3-g1 Kd1-c1 60. Sh4-f3 Ke1-d1 61. Tg1-h1 Kd1-e1
62. Tg6-g1 Kc1-d1 63. Se3-f1 Kd1-c1 64. Sg4-e3+ Ke1-d1 65. Ta2-a3 Kf1-e1
66. Sf3-h4 Kg2-f1 67. Tb1-b2 e5xLd4 68. Th1-b1 Kf1-g2 69. Sg1-f3+ Ke1-f1
70. Se3-g4 Kd1-e1 71. Sf1-e3+ Kc1-d1 72. Sf3-g1 Kd1-c1 73. Sh4-f3 Kc1-d1
74. Tg1-h1 Kd1-c1 75. Tg5-g1 Kc1-d1 76. Se3-f1 Kd1-c1 77. Sg4-e3+ Ke1-d1
78. Tb2-a2 Kf1-e1 79. Sf3-h4 Kg2-f1 80. Tb1-b2 e6-e5 81. Th1-b1 Kf1-g2
82. Sg1-f3+ Ke1-f1 83. Kc3-b4 Kd1-e1 84. Kd3-c3 Kc1-d1 85. Df5-c5 Kb2-c1
86. Le3-d4+ Ka3-b2 87. Ld4-e3 Kb4-a3 88. Lb2-d4 Kc5-b4 89. Se5-g4+ Kd6-c5
90. Lc1-b2 Ke7-d6 91. b2-b3 Lb3-a4 92. Dg4-f5 Ld5-b3 93. Dg2-g4 Lb7-d5
94. Df1-g2 Lc8-b7 95. Dd1-f1 b7-b6 96. Ke4-d3 Lc5-a7 97. La7-b8 La3-c5
98. Kf3-e4 Kd8-e7 99. Lc5-a7 Sb3-a1 100. Lf8-c5 Sb6-a8 101. f7-f8=L Sd5-b6
102. Tg4-g5 Se7-d5 103. Ta4-g4 Sa5-b3 104. Tg4-g6 Sc6-a5 105. g6xTf7 Tf8-f7
106. Ta8-a4 Th8-f8 107. a7-a8=T Sg8-e7 108. a6-a7 Lf8-a3 109. a5-a6 Th4-h8
110. Ta4-g4 Sb8-c6 111. Ta1-a4 f7-f6 112. a4-a5 Tb4-h4 113. a3-a4 Ta4-b4
114. Kg2-f3 Ta5-a4 115. Kf1-g2 Ta7-a5 116. Ke1-f1 a6xLb5 117. Lc6-b5 Ta8-a7
118. Lg2-c6 a7-a6 119. Lf1-g2 Ke8-d8 120. g2xTh3 Th8-h3 121. g5-g6 h3-h2
122. a2-a3 h4-h3 123. Sc4-e5 h5-h4 124. h4xDg5 Dd8-g5 125. Sa3-c4 e7-e6
126. Sb1-a3 h7-h5 127. h2-h4
play all

Laut Fabel-Projekt handelt es sich um die Korrektur von Weihnachtsnuß III (Schwalbe XI-XII 1953).
hans: bBa4 looks impossible to get there. We need all pieces for the three captures of white and black. (2011-12-09)
Henrik Juel: What is the problem, Hans?
White captured g2xh3 and hxgxh and promoted on a8 and h8; Black captured axb and exdxc, so all missing men were captured by pawns.
I expect the resolution involves extracting a white rook via g1, like in the many other retros with a similar matrix.
Without a black bishop on a4 the resolution seems rather simple and relatively fast, whereas the stipulation suggests lots and lots of waiting retractions by the black king. (2011-12-09)
hans: I spoke too soon, but your suggestion is wrong, white captures are gxh and hxgxf=B and this Bishop goes to b8, for b2-b3 can only be played after bBa4 is arrived. And I found a solution, only cost 52 moves after c4-c3. The position after that last pawn move is wKb4, Qf8, wRa3, wRa2, wRb2, wSf3, bKh1. First Sf3 to f1, to block and for the last moves Sf1-g3+ Kg2 Sh1. (2011-12-09)
hans: I count 91 bK-moves. Here a possible game started from PAS: 1. h3 e6 2. h4 Qg5 3. hxg5 h5 4. g6 h4 5. Nc3 h3 6. Nd5 h2 7. Ne3 Rh3 8.
gxh3 Na6 9. Bg2 Nc5 10. Bc6 Nb3 11. Bb5 a6 12. a4 axb5 13. a5 Ra6 14. Ra4
Rd6 15. Rg4 Rd5 16. a6 Rh5 17. a7 Rh8 18. a8=R Ba3 19. Raa4 Nf6 20. Kf1 Nd5
21. Kg2 f6 22. Kf3 Rf8 23. Ke4 Rf7 24. gxf7+ Kd8 25. f8=B Nb6 26. Bc5 Na8
27. Ba7 Bc5 28. Bb8 Ba7 29. Rg6 b6 30. Kd3 Bb7 31. Rag4 Bd5 32. Qf1 Na1 33.
Qg2 Bb3 34. Qg3 Ba4 35. b3 Ke7 36. Qh4 Kd6 37. Bb2 Kc5 38. Bd4+ Kb4 39.
R4g5 Ka3 40. Bc5+ Kb2 41. Bd4+ Kc1 42. Ng4 Kd1 43. Kc3 Ke1 44. Kb4 Kf1 45.
Nf3+ Kg2 46. Rb1 e5 47. Rb2 Kf1 48. Ng1 Ke1 49. Ra2 Kd1 50. Ne3+ Ke1 51.
Nf1 Kd1 52. Nf3 Kc1 53. Rg1 Kd1 54. Rh1 Kc1 55. Ng1 Kd1 56. Ne3+ Ke1 57.
Ng4 Kf1 58. Nf3+ Kg2 59. Rb1 exd4 60. Rbb2 Kf1 61. Nfe5 Ke1 62. Qh8 Kd1 63.
Ne3+ Ke1 64. Nf1 Kd1 65. Rg1 Ke1 66. Rh1 Kd1 67. Nf3 Kc1 68. Ng1 Kd1 69.
Ne3+ Ke1 70. Nd5 Kf1 71. Nc3 Ke1 72. Ra3 Kf1 73. Rba2 Ke1 74. Qf8 Kf1 75.
Nf3+ Kg2 76. Rb1 dxc3 77. Rbb2 Kh1 78. Nd4 Kg1 79. Nf5 Kh1 80. Ng3+ Kg1 81.
Nf1 Kh1 82. Rb1 Kg1 83. Re1 Kh1 84. Rb2 Kg1 85. Rbb1 Kh1 86. Rbd1 Kg1 87.
Ra2 Kh1 88. Rb2 Kg1 89. Rbb1 Kh1 90. Ka3 Kg1 91. Ka2 Kh1 92. Qa3 Kg1 93.
Qc1 Kh1 94. Ka3 Kg1 95. Kb4 Kh1 96. Rb2 Kg1 97. Ra2 Kh1 98. Qb2 Kg1 99. Rb1
Kh1 100. Qc1 Kg1 101. Rbb2 Kh1 102. Ra3 Kg1 103. Rba2 Kh1 104. Qb2 Kg1 105.
Rb1 Kh1 106. Qc1 Kg1 107. Qe1 Kh1 108. Rd1 Kg1 109. Rb2 Kh1 110. Rbb1 Kg1
111. Rbc1 Kh1 112. Ra2 Kg1 113. Rb2 Kh1 114. Ka3 Kg1 115. Ka2 Kh1 116. Kb1
Kg1 117. Ra2 Kh1 118. Ra3 Kg1 119. Ka2 Kh1 120. Rb1 Kg1 121. Rb2 Kh1 122.
Kb1 Kg1 123. Kc1 Kh1 124. Rb1 Kg1 125. Ra2 Kh1 126. Rab2 Kg1 {50 moves rule} 127. Ng3+ Kg2 128. Nh1 (2011-12-10)
Mario Richter: The intended solution needs only 89 bK-moves. (2011-12-11)
Henrik Juel: The (forward) game in the intended solution is given below, with numbers in parentheses counting the black king moves.
1.h4 h5 2.Sa3 e6 3.Sc4 Dg5 4.hxg5 h4 5.Se5 h3 6.a3 h2 7.g6 Th3 8.gxh3 Kd8(1) 9.Lg2 a6 10.Lc6 Ta7 11.Lb5 axb5 12.Kf1 Ta5 13.Kg2 Ta4 14.Kf3 Tb4 15.a4 Th4 16.a5 f6 17.Ta4 Sc6 18.Tg4 Th8 19.a6 La3 20.a7 Sge7 21.a8T Tf8 22.Taa4 Tf7 23.gxf7 Sa5 24.Tg6 Sb3 25.Tag4 Sd5 26.T4g5 Sb6 27.f8L Sa8 28.Lc5 Sa1 29.La7 Ke7(2) 30.Ke4 Lc5 31.Lb8 La7 32.Kd3 b6 33.Df1 Lb7 34.Dg2 Ld5 35.Dg4 Lb3 36.Df5 La4 37.b3 [pawn move] Kd6(3) 38.Lb2 Kc5(4) 39.Sg4+ Kb4(5) 40.Ld4 Ka3(6)
41.Le3 Kb2(7) 42.Ld4+ Kc1(8) 43.Dc5 Kd1(9) 44.Kc3 Ke1(10) 45.Kb4 Kf1(11) 46.Sf3+ Kg2(12) 47.Tb1 e5 48.Tb2 Kf1(13) 49.Sh4 Ke1(14) 50.Ta2 Kd1(15) 51.Se3+ Kc1(16) 52.Sf1 Kd1(17) 53.Tg1 Kc1(18) 54.Th1 Kd1(19) 55.Sf3 Kc1(20) 56.Sg1 Kd1 57.Se3+ Ke1 58.Sg4 Kf1 59.Sf3+ Kg2 60.Tb1 exd4 61.Tbb2 Kf1 62.Sh4 Ke1 63.Ta3 Kd1 64.Se3+ Kc1 65.Sf1 Kd1 66.Tg1 Ke1(30) 67.Th1 Kd1 68.Sf3 Kc1 69.Sg1 Kd1 70.Se3+ Ke1 71.Sd5 Kd1 72.Sc3+ Ke1 73.Tba2 Kf1 74.Sf3+ Kg2 75.Tb1 dxc3 [last
pawn move] 76.Tbb2 Kf1 77.Sd4 Kg1(40) [now black king alternates on h1 and g1 for a long time, while White gets his king and queen in] 78.Sf5 79.Se3 80.Sf1 81.Tb1 82.Te1 83.Tb2 84.Tbb1 85.Tbd1 86.Ta2 87.Tb2 Kg1(50) 88.Tb1 89.Ka3 90.Ka2 91.Da3 92.Dc1 93.Ka3 94.Kb4 95.Tb2 96.Ta2 97.Ta3 Kg1(60) 98.Db2 99.Tb1 100.Dc1 101.Tb2 102.Tba2 103.Db2 104.Tb1 105.Dc1 106.De1 107.Td1 Kg1(70) 108.Tb2 109.Tbb1
110.Ta2 111.Ka3 112.Tab2 113.Ka2 114.Tbc1 115.Kb1 116.Ta2 117.Ta3 Kg1(80) 118.Ka2 119.Tb1 120.Tb2 121.Kb1 122.Kc1 123.Tb1 124.Ta2 125.Tab2 Kg1(88) [if the 50 moves rule were in effect, the game would stop now] 126.Sg3+ Kg2(89) 127.Sh1 (2011-12-12)
comment

Keywords: Minimal number of moves of a piece (K), Non-standard material
Genre: Retro
FEN: nB6/b1pp2p1/1p3p2/1p6/b7/1Pp4P/1RPPPPkp/nRKRQ2N
Input: Gerd Wilts, 1995-06-03
Last update: Mario Richter, 2011-12-11 more...

95 - P0004222
Karl Fabel
866 The Fairy Chess Review 18 10/1957

(16+0)
ser-s-Retropatt in 29 (Typ Tylor)

R: 1. Lb2-a1 2. Da1-a5 3. Dd1-a1 4. Lc1-b2 5. b2-b3 6. b3-b4 7. Ta4-c4 8. Ta1-a4 9. Tb1-a1 10. Sa1-c2 11. c2-c3 12. Tc3-c8 13. Te3-c3 14. Te1-e3 15. Tg1-e1 16. Lf1-b5 17. Kb5-a6 18. Kc4-b5 19. Kd3-c4 20. Ke2-d3 21. Ke1-e2 22. e2-e4 23. Ld5-f3 24. Lg8-d5 25. g7-g8=L 26. g6-g7 27. g5-g6 28. g4-g5 29. g3-g4
play all

Henrik Juel: The stipulation stands for series-self-retro-stalemate, I think: White retracts 29 moves (no uncaptures) (in a series without Black intervention) to reach a position where White retractions are no longer possible (except uncaptures). The Taylor type may refer to the no uncapture rule. (2009-10-23)
more ...
comment

Keywords: Promotion in the retro play, under-promotion, Non-standard material, Seriesmover
Genre: Retro
FEN: 2R5/8/K7/QB6/1PR1P3/1PP2B2/2NP1PP1/B6N
Reprints: 532 FIDE Album 1956-1958 1961
Input: Gerd Wilts, 1995-06-03
Last update: Alfred Pfeiffer, 2022-01-14 more...

96 - P0004224
Karl Fabel
Probleemblad 1960

(12+13)
#2

1. 0-0-0! ... 2. Txd7#
R: 1. ... Lh2-g1 2. Lg1-f2 Sg7-h5 3. Lf2-g1 Sf5-g7 4. Lg1-f2 Sd4-f5 5. Lf2-g1 Sb3-d4 6. Lg1-f2 Sc5-b3 7. Lf2-g1 Sa6-c5 8. Lg1-f2 Sc5xBa6 9. Lf2-g1 Se4-c5 10. Lg1-f2 Sf2-e4 11. f3-f4 Sh1-f2 12. Lf2-g1 Lg1-h2 13. a5-a6 h2-h1=S 14. a4-a5 h3-h2 15. h2xSg3 Sh5-g3 16. Lg3-f2 Sg7-h5 17. Le5-g3 Sh5-g7 18. Lc3-e5 Sg7-h5 19. Ld2-c3 Sh5-g7 20. Lc1-d2 Sg3-h5 21. d2xSe3 Sd5-e3 22. a3-a4 Le3-g1 23. a2-a3 Lh6-e3 24. c3-c4 Lf8-h6 25. c2-c3 g7xSf6 26. Sh5-f6 Sf4-d5 27. f6-f7 etc.
play all

Henrik Juel: 1.0-0-0 (2.Txd7#). -1... Lh2 -2.Lg1, Sh5 uncaptures wPa6 and unpromotes on h1, then retract h2xg3, Lf2 via f4 to c1, d2xe3, Lg1 to f8, g7xf6 etc. (2004-01-12)
Henrik Juel: C+ Popeye 4.61 (2023-07-14)
comment

Keywords: Castling (wg), Phoenix (n)
Genre: Retro, 2#
FEN: RrrkB3/pppbpP2/2p1pp2/7n/2P2P2/4P1P1/1P3BP1/R3K1b1
Reprints: 549 FIDE Album 1959-1961 1966
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2023-07-15 more...

97 - P0004225
Karl Fabel
Basler Nachrichten 1961

(14+12)
#2

1. Lf6! ... 2. Sa6#,Sc6#
play all

Henrik Juel: 1.Lf6. White captured b2xLc3 and wK passed c4 or d8. If sK never moved, Th8 is orig. Ta8, so Black may not castle. (2004-01-26)
comment

Keywords: Promenade, Castling (sk), Cant Castler
Genre: Retro
FEN: QN1Bk2r/p1pp2p1/3p4/1p4Nb/1n6/1PPq3P/2PPPPPn/5B1K
Reprints: 550 FIDE Album 1959-1961 1966
Die Schwalbe 192, p. 305, 12/2001
Input: Gerd Wilts, 1995-06-03
Last update: James Malcom, 2021-02-15 more...

98 - P0004228
Karl Fabel
Haproblemai 1959
2. Preis

(12+13)
#1 (wer?)

Henrik Juel: -1.Sa3 Lh7 -2.Sc4 Lg8 -3.Sb6 Lh7 -4.Sd5 Lg8 -5.Sf4 Tg3 -6.Sg2 Lh7 -7.Sh6 Tg4 -8.Sg8 b6 -9.S=g7 Lg8 -10.c2 Lh7 -11.Lh5 Lg8 -12.g6 Lh7 -13.g5 Lg8 -14.Lg6 h5 -15.h4xLg5 Lh6 -16.Lh7 Lf8 -17.Ke5 g7xLf6 etc.

Seems cooked by -1... Lh7 -2.Sa3 Lg8 -3.Sc4 Lh7 -4.Sb6 Lg8 -5.Sd5 Lh7 -6.Sf4 Lg8 -7.Sh6 Tg4 -8.Sg2 Lh7 -9.Sg8 and as before. It's hard to understand how this obvious cook could have gone unnoticed. Is the analysis correct? (2004-01-12)
Yoav Ben-Zvi: The analysis above shows that since BRg2 could have come from g4 in 1 step or 2 either side can be on the move and mate in 1.
The primary thematic content of this fine problem is not affected, it can be shown by the stipulation: "What promotion moves were played?".
Before promoting WB on g8 Pg7xf6 must release Bf8 for capture by Ph2. This locks the East cage so promoted WB prevents BB from reaching g8. Therefore:
WB was promoted on a8; BPa7,b7 made three captures to clear the way for Pa2 and promote to BB; WPh2 promoted on g8 since it cannot be captured by BPs.
The promotion to BB is done from a2 not c2 as Pc2-c3 is needed for a later tempo move.
Solution: WPg7-g8=N, WPa7-a8=B, BPa2xb1=B

To keep the #1 move WBg6 to h7, WNb1 to g6, BPb5 to b4
6b1/2pppp1B/5pN1/5K2/1p2P1Np/2PPPk1b/1P3Prr/5BqQ
#1 (Who?) , "What promotion moves were played?"
Try: 1.WNxh4#? Solution: 1…BBxg4# , Promotions (as above): WPg7-g8=N, WPa7-a8=B, BPa2xb1=B
R: -1.WNf4-g6 Rg3-g2 -2.WNg2-f4+ Pb5-b4 -3.Nh6-g4 Rg4-g3+ -4.Bg6-h7 Bh7-g8 -5.Ng8-h6 Pb6-b5 -6.Pg7-g8=N Bg8-h7 -7.Pc2-c3 Bh7-g8
-8.Bh5-g6 Bg8-h7+ -9.Pg6-g7 Bh7-g8 -10.Pg5-g6 Bg8-h7+ -11.Bg6-h5 Ph5-h4 -12.Ph4xBg5 Bh6-g5 -13.Bh7-g6 Bf8-h6 -14.Ke5-f5 Pg7xf6+ (2012-12-31)
Yoav Ben-Zvi: On further review the East cage can be released by retracting WPd2-d3 followed by removal of WBf1 and BQg1.
In this case WBc1 was captured at home and BPa7 promoted from a2 (after the capture of WPa2). This ruins my suggested correction above.
An article containing a version with this cook as the solution, published in Variantim, can be downloaded via www.variantim.org/Fabel-IRT_1959.pdf (2013-10-11)
comment

Keywords: Whose move?
Genre: Retro
FEN: 6b1/2pppp2/5pB1/1p3K2/4P1Np/2PPPk1b/1P3Prr/1N3BqQ
Reprints: 555 FIDE Album 1959-1961 1966
Input: Gerd Wilts, 1995-06-03

99 - P0004230
Karl Fabel
Probleemblad 1961

(12+13)
#1 (wer?)

Henrik Juel: Black seems to have the move, but where's the mate? -1.Sf8-h7 L=b2 -2.Lb1 Tf6 -3.Sg6 Sc5 -4.Sh8 Sb3 -5.S=h7 Sc5 -6.Sf8 Sd7 -7.Sg6 b3 -8.Sh8 g6 -9.La2 Lf4 etc. (2004-01-26)
comment

Keywords: Retro Opposition, Whose move?, Non-standard material
Genre: Retro
FEN: b2Nb3/1NpN1ppN/2K1p1rb/1P3pp1/2k5/1nP5/B1PPPP2/1b6
Reprints: 558 FIDE Album 1959-1961 1966
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

100 - P0004241
Karl Fabel
Die Schwalbe 1962

(14+10)
Welches war der letzte Bauernzug?

hans: g4xf5 (black needs two tempomoves to let Rooks pass King over g1 (f6-f5 and f7-f6)Fabel uses matrix many times! (2011-12-14)
Gerald Ettl: Muss die Forderung nicht so lauten: Welches war der letzte Bauern-Schlag. Denn der letzte B-Zug war f7f8D. R: 1.g4xBf5! (2011-12-14)
Gerald Ettl: R: 1.Sh5g3 Kg2h1 2.Sg3f1 Kh1g1 3.Dd1e1 Kg1h1 4.Dc1d1 Kh1g1 5.Kb2c1 Kg1h1 6.Ta2b2 Kh1g1 7.Lb1a2 Kg1h1 8.Tb2b1 Kh1g1 9.Kc1b2 Kg1h1 10.Tb1c1 Kh1g1 11.La2b1 Kg1h1 12.Ta3a2 Kh1g1 13.Kb2a3 Kg1h1 14.Ka3b4 Kh1g1 15.Kb4c4 Kg1h1 16.Ta2a3 Kh1g1 17.Lb1a2 Kg1h1 18.Tc1b1 Kh1g1 19.Dd1c1 Kg1h1 20.Dc1b2 Kh1g1 21.Tb1c1 Kg1h1 22.La2b1 Kh1g1 23.Ta3a2 Kg1h1 24.Db2a3 Kh1g1 25.Da3d6 Kg1h1 26.Ta2a3 Kh1g1 27.Lb1a2 Kg1h1 28.Tc1b1 Kh1g1 29.De1c1 Kg1h1 30.Dc1b2 Kh1g1 31.Tb1c1 Kg1h1 32.La2b1 Kh1g1 33.Ta3a2 Kg1h1 34.Db2a3 Kh1g1 35.Da3c5 Kg1h1 36.Dd6f6 Kh1g1 37.Df6f8 Kg1h1 38.Df8f7[+wBf7] Kh1g1 39.Bf7f6 Kg1h1 40.Bf6f5 Kh1g2 41.Ta2a3 Kg2h1 42.Lb1a2 Kh1g2 43.Tc1b1 Kg2h1 44.Tb1b2 Kh1g1 45.Sf1e3 Kg1h1 46.Se3g4 Kh1g1 47.Sg4e5 Kg1g2 48.Se5f3 Kg2h1 49.Sf3g1 Kh1g2 50.Tb2b1 Kg2h1 51.Bf5g4[+sBf5] Kh1g2 52.Sg1f3 Bf5f6 53.Tb1h1 Kg2f1 54.Sf3g1 Kf1e1 55.La2b1 Ke1d1 56.Kc4d4 Kd1c1 57.Kd4e4 Kc1b2 58.Sg1f3 Kb2c1 59.Sf3e1 Kc1b2 60.Th1g1 Kb2c1 61.Tg1g3 Kc1b2 62.Tg3d3 Kb2c1 63.Se1f3 Kc1d1 64.Sf3h4 Kd1e1 65.Ta3a2 Ke1f1 66.Ta2b2 Kf1g1 67.Lb1a2 Kg1h1 68.Sh4f3 Kh1g2 69.Tb2b1 Bf6f7 70.Tb1h1 Kg2f1 71.Sf3g1 Kf1e1 72.Dc5e3 Ke1d1 73.De3f3 Kd1c1 74.Df3g2 Kc1b2 75.Dg2f1 Kb2a3 76.Df1d1 Ka3b4
Welches war der letzte Schlagzug (auch der wLc1 konnte vorher nicht geschlagen worden sein) (2011-12-14)
hans: You are right, zug/schlag /German/English/Dutch! Only your last move must be 76.b2xXc3+ Kb4-a3 for b and c pawn must cross to let sPc through, for wB captured on the spot and the other capture is axb6 (2011-12-14)
comment

Keywords: Promotion (D), Non-standard material
Genre: Retro
FEN: 2b5/1p1pp1p1/1p6/7N/P7/RPP4P/RKpPPPkp/nBQQ4
Reprints: 658 FIDE Album 1962-1964 1968
Input: Gerd Wilts, 1995-06-03
Last update: Gerd Wilts, 2004-08-09 more...

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