124 problem(s) found in 2853 milliseconds (displaying 100 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND NOT K='Funktionswechsel' AND S='Schachmaty w SSSR'] [download as LaTeX]
Keywords: 50 move rule, Castling (wl)
Genre: Retro
FEN: nB3RbN/1kppppq1/1p4p1/1P3p2/Bp3P1n/4PrbP/2PP1rP1/R3K3
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-01-25 more...
Genre: Retro
FEN: nB3RbN/1kppppq1/1p4p1/1P3p2/Bp3P1n/4PrbP/2PP1rP1/R3K3
Input: Gerd Wilts, 1995-06-03
Last update: A.Buchanan, 2022-01-25 more...
1. ... h1=D,T Lh5! ... 2. Sg5#
1. ... h1=L g8=L! Kxg4 2. Le6#
1. ... h1=S Lh5! Sxg3,Sxf2 2. Sf4,Sg5#
1. ... hxg1=D,T,L,S Sfxg1+ Kxg4 2. g8=D,T#
1. ... Kxg4 g8=D,T+ Kh3,Kf5 2. Sf4,Sd2#
Schwarz hat keinen letzten Zug, beginnt also.
1. ... h1=L g8=L! Kxg4 2. Le6#
1. ... h1=S Lh5! Sxg3,Sxf2 2. Sf4,Sg5#
1. ... hxg1=D,T,L,S Sfxg1+ Kxg4 2. g8=D,T#
1. ... Kxg4 g8=D,T+ Kh3,Kf5 2. Sf4,Sd2#
Schwarz hat keinen letzten Zug, beginnt also.
Keywords: Whose move?
Genre: Retro
FEN: 4B3/3K2P1/8/8/6P1/5NBk/4NRpp/6R1
Reprints: 9 Shakhmaty v SSSR , p. 48f, 06/1981
(3) Die Schwalbe 156, p. 223, 12/1995
Input: Gerd Wilts, 1996-06-12
Last update: Rainer Staudte, 2022-08-27 more...
Genre: Retro
FEN: 4B3/3K2P1/8/8/6P1/5NBk/4NRpp/6R1
Reprints: 9 Shakhmaty v SSSR , p. 48f, 06/1981
(3) Die Schwalbe 156, p. 223, 12/1995
Input: Gerd Wilts, 1996-06-12
Last update: Rainer Staudte, 2022-08-27 more...
1. bxc6ep
Lösetip beim Originalabdruck: beim Abzählen der geschlagenen Figuren beachte man die Farbe der Felder, auf denen sie fielen.
AL
Le4 ist ein UW-L, der nur so entstanden sein kann: h2-h7xg8=L.
Schwarz zog h7xg6x5, um ihn vorbeizulassen.
Somit ergibt sich folgende Schlagbilanz:
Weiß: axb, dxc, fxg (als Schlagobjekt für den sBh7) [Anmerkung: statt fxg auch fxe mit UW auf e8 möglich, ändert aber nichts]
Schwarz: bxc, h7xg6xh5 sowie den wLf1, der nicht von den sBB geschlagen wurde
Unter den geschlagen weißen Figuren befindet sich der schwarzfeldrige Lc1.
Die Schläge h7xg6xh5 fanden auf weißen Feldern statt, also wurde der Lc1 mittels b4xc3 geschlagen. ("Effekt Zvetnosti")
Als letzte schwarze Züge kommen also nicht infrage: b3xc2, e7-e5 (sLf8 wird als Schlagobjekt gebraucht), g6xh5 (dann käme der wUW-L nicht von g8 nach e4).
Einziger legaler letzter schwarzer Zug war also c7-c5, und es löst: 1. bxc6ep
Lösetip beim Originalabdruck: beim Abzählen der geschlagenen Figuren beachte man die Farbe der Felder, auf denen sie fielen.
AL
Le4 ist ein UW-L, der nur so entstanden sein kann: h2-h7xg8=L.
Schwarz zog h7xg6x5, um ihn vorbeizulassen.
Somit ergibt sich folgende Schlagbilanz:
Weiß: axb, dxc, fxg (als Schlagobjekt für den sBh7) [Anmerkung: statt fxg auch fxe mit UW auf e8 möglich, ändert aber nichts]
Schwarz: bxc, h7xg6xh5 sowie den wLf1, der nicht von den sBB geschlagen wurde
Unter den geschlagen weißen Figuren befindet sich der schwarzfeldrige Lc1.
Die Schläge h7xg6xh5 fanden auf weißen Feldern statt, also wurde der Lc1 mittels b4xc3 geschlagen. ("Effekt Zvetnosti")
Als letzte schwarze Züge kommen also nicht infrage: b3xc2, e7-e5 (sLf8 wird als Schlagobjekt gebraucht), g6xh5 (dann käme der wUW-L nicht von g8 nach e4).
Einziger legaler letzter schwarzer Zug war also c7-c5, und es löst: 1. bxc6ep
Des Autors (geb.27.12.1938)"`Erstling"', also mit 36 Jahren.
abgedruckt in der Rubrik: "Redkije Shanry"
Henrik Juel: Solution: 1.bxc6 ep (2.cxd7#). White captured axb, dxc, fxe, h7xg8=B and promoted on e8; Black captured orig. Bf1, bxc, h7xg6xh5 and promoted on a1. So last move must be c7-c5. (2003-05-27)
Mario Richter: @all PDB activists: Would the introduction of a new keyword: "Farbbalance / color balance"
or something similiar make any sense? (describing the fact, that a certain capture must have happened on a square of a determined color) (2022-04-26)
A.Buchanan: The pieces have colour: black & white. But the squares and the bishops have *shade*. Informally of course one can say anything, but if we are glossarizing then maybe be a bit more formal. And what is “balance” here? I think of balance in terms of pawn captures required vs available. Typically the issue you are talking about is where almost all pawn captures are in one shade square, allowing us say something interesting about a bishop capture. Maybe: “shade logic”? (2022-04-26)
Henrik Juel: I use Andrew's terminologi: men are white or black, and squares are light or dark
But my non-retro friends (both of them) use white/black for squares also
So 'Shade logic' may be too esoteric
What about 'Square color argument'?
It is used far more frequently in retro analysis than, say, 'Parity argument', so a keyword is needed
Thanks for the suggestion, Mario (2022-04-26)
A.Buchanan: I am convinced by Henrik, but I will continue to use “shade” in my own writing. (2022-04-27)
comment
abgedruckt in der Rubrik: "Redkije Shanry"
Henrik Juel: Solution: 1.bxc6 ep (2.cxd7#). White captured axb, dxc, fxe, h7xg8=B and promoted on e8; Black captured orig. Bf1, bxc, h7xg6xh5 and promoted on a1. So last move must be c7-c5. (2003-05-27)
Mario Richter: @all PDB activists: Would the introduction of a new keyword: "Farbbalance / color balance"
or something similiar make any sense? (describing the fact, that a certain capture must have happened on a square of a determined color) (2022-04-26)
A.Buchanan: The pieces have colour: black & white. But the squares and the bishops have *shade*. Informally of course one can say anything, but if we are glossarizing then maybe be a bit more formal. And what is “balance” here? I think of balance in terms of pawn captures required vs available. Typically the issue you are talking about is where almost all pawn captures are in one shade square, allowing us say something interesting about a bishop capture. Maybe: “shade logic”? (2022-04-26)
Henrik Juel: I use Andrew's terminologi: men are white or black, and squares are light or dark
But my non-retro friends (both of them) use white/black for squares also
So 'Shade logic' may be too esoteric
What about 'Square color argument'?
It is used far more frequently in retro analysis than, say, 'Parity argument', so a keyword is needed
Thanks for the suggestion, Mario (2022-04-26)
A.Buchanan: I am convinced by Henrik, but I will continue to use “shade” in my own writing. (2022-04-27)
comment
Keywords: En passant as key, Obvious promotion (wLe4)
Genre: Retro
FEN: brkn2R1/Rn1p1pp1/N7/1PpKp2p/QPP1B3/2P5/2p1P1P1/8
Reprints: Caissas Schloßbewohner 3 1987
Input: Gerd Wilts, 1996-09-16
Last update: Mario Richter, 2022-04-26 more...
Genre: Retro
FEN: brkn2R1/Rn1p1pp1/N7/1PpKp2p/QPP1B3/2P5/2p1P1P1/8
Reprints: Caissas Schloßbewohner 3 1987
Input: Gerd Wilts, 1996-09-16
Last update: Mario Richter, 2022-04-26 more...
1. Sxb2#
R: 1. ... a3xDb2 2. Sa2-b4 b4xLa3 3. c4-c5 c5xSb4 4. Da1-b2 d6xTc5 5. Lc1-a3 Ka3-a4 6. Tb2-b3++! Ka4-a3 7. Lb1-c2 Ka3-a4
1. N:b2# Black's last move was a3:b2. White's balance equals 12 in the diagram) + 4 (captures d:c:b4:a3:52) = 16 - including the pawns e2, 12, g2 and h2, which were promoted. Black's balance: 9 (in the diagram) + 7 (captures e:d7-d8, f:e7-e8, g:f:e7-e8, h:g:f:e7-e8) = 16. Retroplay: 1. ... a3:Qb2 (necessarily a Queen!) 2. Na2-b4! b4:Ba3 (necessarily a Bishop) 3. c4-c5 c5:Nb4 (necessarily a Knight) 4. Qal-b2 d6:Rc5 (necessarily a Rook) 5. Bcl-a3 Ka36. Rb2-b3++! Ka4-a3 7. Bb1-c2+, etc. Had Black uncaptured a Rook on b2, then the retromove 4. Rb1-b2 instead of Qal-b2) would have oscillations of the black King on the squares a3-a4 and the white Rook on b2-b3 would have gone on forever... This is the first-ever rendition of uncapture differentiation under the pressure of perpetual retro motion!
Sourced from a comment by Shoopi: https://www.chess.com/blog/Rocky64/the-allumwandlung-theme-in-endgame-studies#comment-71850163
R: 1. ... a3xDb2 2. Sa2-b4 b4xLa3 3. c4-c5 c5xSb4 4. Da1-b2 d6xTc5 5. Lc1-a3 Ka3-a4 6. Tb2-b3++! Ka4-a3 7. Lb1-c2 Ka3-a4
1. N:b2# Black's last move was a3:b2. White's balance equals 12 in the diagram) + 4 (captures d:c:b4:a3:52) = 16 - including the pawns e2, 12, g2 and h2, which were promoted. Black's balance: 9 (in the diagram) + 7 (captures e:d7-d8, f:e7-e8, g:f:e7-e8, h:g:f:e7-e8) = 16. Retroplay: 1. ... a3:Qb2 (necessarily a Queen!) 2. Na2-b4! b4:Ba3 (necessarily a Bishop) 3. c4-c5 c5:Nb4 (necessarily a Knight) 4. Qal-b2 d6:Rc5 (necessarily a Rook) 5. Bcl-a3 Ka36. Rb2-b3++! Ka4-a3 7. Bb1-c2+, etc. Had Black uncaptured a Rook on b2, then the retromove 4. Rb1-b2 instead of Qal-b2) would have oscillations of the black King on the squares a3-a4 and the white Rook on b2-b3 would have gone on forever... This is the first-ever rendition of uncapture differentiation under the pressure of perpetual retro motion!
Sourced from a comment by Shoopi: https://www.chess.com/blog/Rocky64/the-allumwandlung-theme-in-endgame-studies#comment-71850163
Henrik Juel: 1.Sxb2#. -1... a3xDb2 -2.Sa2 b4xLa3 -3.c4 c5xSb4 -4.Da1 d6xTc5 -5.Lc1 Ka3 -6.Tb2 Ka4 -7.Lb1 Ka3 etc. All-uncapture. (2004-01-02)
James Malcom: Shortest possible proof game: 1. c4 c6 2. a4 Qc7 3. h4 Qh2 4. Nh3 Kd8 5. Ra2 Kc7 6. e4 Kb6 7. Nc3 Kc5 8. a5 Qg3 9. b4+ Kd4 10. b5 Kc5 11. Qa4 Qd3 12. g4 Qc2 13. Rb2 Qb3 14. Qa1 Kb4 15. Na2+ Ka3 16. Ke2 Qd1+ 17. Ke3 Qf3+ 18. Kd4 Na6 19. Bd3 Nc5 20. Bb1 Nd3 21. Nf4 Ne5 22. Kc5 Qh3 23. Nd3 a6 24. f4 Nf3 25. Kb6 Ng5 26. hxg5 d6 27. e5 Bd7 28. e6 Re8 29. exd7 e6 30. f5 Be7 31. f6 Rc8 32. fxe7 Nf6 33. e8=N Ng8 34. d8=B Qh4 35. Bf6 Qh5 36. Bc3 Qh6 37. Nf6 Qg6 38. Nd5 Nf6 39. gxf6 Rce8 40. N5b4 Re7 41. fxe7 Rf8 42. e8=R Rg8 43. Rd8 Rf8 44. Rh5 Re8 45. Rc5 Re7 46. g5 Qf6 47. gxf6 Ka4 48. fxe7 Ka3 49. e8=Q Ka4 50. Rd7 Ka3 51. Qe7 Ka4 52. Bc2+ Ka3 53. Rb3+ Ka4 54. Ba3 dxc5 55. Qb2 cxb4 56. c5 bxa3 57. Nab4 axb2 (2023-02-05)
comment
James Malcom: Shortest possible proof game: 1. c4 c6 2. a4 Qc7 3. h4 Qh2 4. Nh3 Kd8 5. Ra2 Kc7 6. e4 Kb6 7. Nc3 Kc5 8. a5 Qg3 9. b4+ Kd4 10. b5 Kc5 11. Qa4 Qd3 12. g4 Qc2 13. Rb2 Qb3 14. Qa1 Kb4 15. Na2+ Ka3 16. Ke2 Qd1+ 17. Ke3 Qf3+ 18. Kd4 Na6 19. Bd3 Nc5 20. Bb1 Nd3 21. Nf4 Ne5 22. Kc5 Qh3 23. Nd3 a6 24. f4 Nf3 25. Kb6 Ng5 26. hxg5 d6 27. e5 Bd7 28. e6 Re8 29. exd7 e6 30. f5 Be7 31. f6 Rc8 32. fxe7 Nf6 33. e8=N Ng8 34. d8=B Qh4 35. Bf6 Qh5 36. Bc3 Qh6 37. Nf6 Qg6 38. Nd5 Nf6 39. gxf6 Rce8 40. N5b4 Re7 41. fxe7 Rf8 42. e8=R Rg8 43. Rd8 Rf8 44. Rh5 Re8 45. Rc5 Re7 46. g5 Qf6 47. gxf6 Ka4 48. fxe7 Ka3 49. e8=Q Ka4 50. Rd7 Ka3 51. Qe7 Ka4 52. Bc2+ Ka3 53. Rb3+ Ka4 54. Ba3 dxc5 55. Qb2 cxb4 56. c5 bxa3 57. Nab4 axb2 (2023-02-05)
comment
Keywords: Last Moves?
Genre: Retro
FEN: 8/1p1RQppp/pKp1p3/PPP5/kN6/1RBN4/1pBP4/8
Input: Gerd Wilts, 1996-09-16
Last update: James Malcom, 2022-08-29 more...
Genre: Retro
FEN: 8/1p1RQppp/pKp1p3/PPP5/kN6/1RBN4/1pBP4/8
Input: Gerd Wilts, 1996-09-16
Last update: James Malcom, 2022-08-29 more...
hans: Yes, legal position
R: Sf7# - Sd8 - Sb7 - Sa5 - Sb3 - Sd2 - Sf1 - Sg3 - Sh5 - Sg7 - Se8 - Sc7 - a8=S - a7 -a6 -a5 - a4 (sS make tempo) -18 … a5xDb4 -19. Da3-b4 a7-a5 -20. Kb4-c5 (unpromote sS on h1-h6 -31. h5xXg6 and sK can out.
(captures White cxb6 bxc5 fxg5 gxf4 hxg6 Black dxe3 exd4 axb4) (2012-02-01)
Hans-Jürgen Manthey: Legal !
R: 1. Sd8-f7# Sf8-h7 2. Sb7-d8 Sh7-f8 3. Sa5-b7 Sf8-h7 4. Sb3-a5 Sh7-f8 5. Sd2-b3 Sf8-h7 6. Sf1-d2 Sh7-f8 7. Sg3-f1 Sf8-h7 8. Sh5-g3 Sh7-f8 9. Sg7-h5 Sf8-h7 10. Se8-g7 Sh7-f8 11. Sc7-e8 Sf8-h7 12. Sa8-c7 Sh7-f8 13. a7-a8=S Sf8-h7 14. a6-a7 Sh7-f8 15. a5-a6 Sf8-h7 16. a4-a5 a5xDb4 17. Db1-b4 a7-a5 18. Kb4-c5 Sd7-f8 19. a2-a4 Sc5-d7 20. Kc3-b4 Sb3-c5 21. c5-c6 Sd2-b3 22. b4XTc5 Tc8-c5 23. Lb7-d5 Sf1-d2 24. La6-b7 c5-c4 25. b2-b4 c7-c5 26. c5xSb6 Sg3-f1 27. Kd2-c3 Sh1-g3 28. Tc4-d4 h2-h1=S 29. Dd1-b1 h3-h2 30. Tc1-c4 h4-h3 31. Ta1-c1 h5-h4 32. Ke1-d2 h7-h5 33. h5xSg6 Kd5-e5 34. Sd2-e4 d4-d3 35. e5-e6 Ke6-d5 36. e4-e5 Kd7-e6 37. Sb1-d2 e5xSd4 38. Tc3-e3 e3-e2 39. Se2-d4 Ta8-c8 40. d5-d6 Ke8-d7 41. d4-d5 Lc8-f5 42. d3-d4 d4xLe3 43. Lc1-e3 Sd7-b6 44. Tc2-c3 Sb8-d7 45. Sg1-e2 b7-b5 46. Tg2-c2 Se7-g6 47. d2-d3 d5-d4 48. Lf1-a6 d7-d5 49. e2-e4 Td4-f4 50. c4-c5 f4-f3 51. c2-c4 f5-f4 52. f4xLg5 Lh6-g5 53. f2-f4 Lf8-h6 54. h4-h5 g5-g4 55. h3-h4 Th4-d4 56. Th2-g2 Th6-h4 57. Tg2-h2 Tg6-h6 58. Th2-g2 Tg8-g6 59. Th1-h2 g7-g5 60. g5xDf6 Th8-g8 61. g4-g5 Sg8-e7 62. g2-g4 Dd8-f6 63. Th2-h1 e7-e5 64. Th1-h2 f7-f5 65. h2-h3 (2021-07-18)
comment
R: Sf7# - Sd8 - Sb7 - Sa5 - Sb3 - Sd2 - Sf1 - Sg3 - Sh5 - Sg7 - Se8 - Sc7 - a8=S - a7 -a6 -a5 - a4 (sS make tempo) -18 … a5xDb4 -19. Da3-b4 a7-a5 -20. Kb4-c5 (unpromote sS on h1-h6 -31. h5xXg6 and sK can out.
(captures White cxb6 bxc5 fxg5 gxf4 hxg6 Black dxe3 exd4 axb4) (2012-02-01)
Hans-Jürgen Manthey: Legal !
R: 1. Sd8-f7# Sf8-h7 2. Sb7-d8 Sh7-f8 3. Sa5-b7 Sf8-h7 4. Sb3-a5 Sh7-f8 5. Sd2-b3 Sf8-h7 6. Sf1-d2 Sh7-f8 7. Sg3-f1 Sf8-h7 8. Sh5-g3 Sh7-f8 9. Sg7-h5 Sf8-h7 10. Se8-g7 Sh7-f8 11. Sc7-e8 Sf8-h7 12. Sa8-c7 Sh7-f8 13. a7-a8=S Sf8-h7 14. a6-a7 Sh7-f8 15. a5-a6 Sf8-h7 16. a4-a5 a5xDb4 17. Db1-b4 a7-a5 18. Kb4-c5 Sd7-f8 19. a2-a4 Sc5-d7 20. Kc3-b4 Sb3-c5 21. c5-c6 Sd2-b3 22. b4XTc5 Tc8-c5 23. Lb7-d5 Sf1-d2 24. La6-b7 c5-c4 25. b2-b4 c7-c5 26. c5xSb6 Sg3-f1 27. Kd2-c3 Sh1-g3 28. Tc4-d4 h2-h1=S 29. Dd1-b1 h3-h2 30. Tc1-c4 h4-h3 31. Ta1-c1 h5-h4 32. Ke1-d2 h7-h5 33. h5xSg6 Kd5-e5 34. Sd2-e4 d4-d3 35. e5-e6 Ke6-d5 36. e4-e5 Kd7-e6 37. Sb1-d2 e5xSd4 38. Tc3-e3 e3-e2 39. Se2-d4 Ta8-c8 40. d5-d6 Ke8-d7 41. d4-d5 Lc8-f5 42. d3-d4 d4xLe3 43. Lc1-e3 Sd7-b6 44. Tc2-c3 Sb8-d7 45. Sg1-e2 b7-b5 46. Tg2-c2 Se7-g6 47. d2-d3 d5-d4 48. Lf1-a6 d7-d5 49. e2-e4 Td4-f4 50. c4-c5 f4-f3 51. c2-c4 f5-f4 52. f4xLg5 Lh6-g5 53. f2-f4 Lf8-h6 54. h4-h5 g5-g4 55. h3-h4 Th4-d4 56. Th2-g2 Th6-h4 57. Tg2-h2 Tg6-h6 58. Th2-g2 Tg8-g6 59. Th1-h2 g7-g5 60. g5xDf6 Th8-g8 61. g4-g5 Sg8-e7 62. g2-g4 Dd8-f6 63. Th2-h1 e7-e5 64. Th1-h2 f7-f5 65. h2-h3 (2021-07-18)
comment
Genre: Retro
FEN: 8/5N1n/1PPPPPP1/1pKBkbP1/1ppRNrp1/3pRp2/4p3/8
Input: Gerd Wilts, 1996-09-16
6 - P0008499
Valery Liskovets
Valery Voynov
Shakhmaty v SSSR 02/1974
after Arthur Ford Mackenzie
Speziallob
(4+1)
#3
Last 4 single moves?
Valery Liskovets
Valery Voynov
Shakhmaty v SSSR 02/1974
after Arthur Ford Mackenzie
Speziallob
(4+1)
#3
Last 4 single moves?
1. La7 Kxa7 2. c8=T! Kxa6 3. Ta8#
R: 1. Ka7-a8 b7-b8=L+ 2. Ka8-a7 b6-b7+
The theme: under-promotions both in the solution and the retro-play.
R: 1. Ka7-a8 b7-b8=L+ 2. Ka8-a7 b6-b7+
The theme: under-promotions both in the solution and the retro-play.
a) 1. "Ta1-d1+?" ... Td4 2. Txd4# (Completing the illegal castling!)
b) 1. "xc5ep+?" ... Tb5 2. Txb5# (Completing the illegal e.p.!)
c) 1. "xe8=S+?" ... e6 2. Sf6# (Completing the illegal promotion!)
0) 1. Sxe7+! Lxe7 2. f8=B# (Truncating the promotion move!)
n in directmate stipulation #n means that White has n moves to do the job. With n=1.5, therefore, one of the White moves is fractional, so we know we are in the realm of jokes, ho ho!
If White's first move is the fractional one, there are three retro tries which attempt to complete: castling, ep & promotion. However all are illegal:
castling: 8 white pawns, so wTa5 came from h1, dislodging wK.
ep: retracting sBc5 to c7 means wLb8 is promoted, but 8 white pawns.
promotion: white made 7 pawn captures, while sBgh were waylaid.
So we consider that White's second move was the fractional one, by omitting the replacement of wBf8 by an officer.
b) 1. "xc5ep+?" ... Tb5 2. Txb5# (Completing the illegal e.p.!)
c) 1. "xe8=S+?" ... e6 2. Sf6# (Completing the illegal promotion!)
0) 1. Sxe7+! Lxe7 2. f8=B# (Truncating the promotion move!)
n in directmate stipulation #n means that White has n moves to do the job. With n=1.5, therefore, one of the White moves is fractional, so we know we are in the realm of jokes, ho ho!
If White's first move is the fractional one, there are three retro tries which attempt to complete: castling, ep & promotion. However all are illegal:
castling: 8 white pawns, so wTa5 came from h1, dislodging wK.
ep: retracting sBc5 to c7 means wLb8 is promoted, but 8 white pawns.
promotion: white made 7 pawn captures, while sBgh were waylaid.
So we consider that White's second move was the fractional one, by omitting the replacement of wBf8 by an officer.
Henrik Juel: Completing the key isn't legal, 1.'Rd1'/'-bPc5'/'e8S'+, but omitting the promotion in the mating move is, 1.Sxe7+ Bxe7 2.'f8'#. Excellent joke. (2003-09-19)
James Malcom: A very witty joke Valladao! (2020-09-24)
A.Buchanan: Really like this joke (2020-09-25)
Henrik Juel: To see the illegality of completing 1.fxe8=S+?, note the captures:
Black captured fxDe, so [Pg7,h7] were captured on their files, while the other six missing black men were captured by white pawns
The illegality of completing 1.0-0-0,bxc6ep? is rather obvious (2020-09-26)
James Malcom: And for those you don't find it obvious: If the White king hasn't moved, then where did wRa5, and wBb8 if bPb5 has just done a double-step, come from? Neither can be promoted pieces, as White still has all eight pawns. Trying to finish castling and en passant therefore both produce illegal positions and thus cannot be the solution. (2020-09-26)
Henrik Juel: Continuing beating the dead horse...
How does the white player actually perform an entire move?
1.0-0-0+: Ke1-c1 and Ta1-d1
1.bxc6ep+: Pb5-c6 and remove sPc5
1.fxe8=S+: remove sYe8 and Pf7-e8 and replace wPe8 with wSe8 (three fractional actions)
2.f8=Y#: Pf7-f8 and replace wPf8 with wYf8
So a marginally better stipulation might be: 'White to move mates in less than 2 moves' (2020-09-26)
A.Buchanan: Hurray I've got the animation working! I agree with Henrik's stipulation. There is a dummy pawn on f8, but not by the Dummy Pawn rule. Instead it's the joke that does it. If Dummy Rule applied, the move would be full length! :) (2022-02-09)
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comment
James Malcom: A very witty joke Valladao! (2020-09-24)
A.Buchanan: Really like this joke (2020-09-25)
Henrik Juel: To see the illegality of completing 1.fxe8=S+?, note the captures:
Black captured fxDe, so [Pg7,h7] were captured on their files, while the other six missing black men were captured by white pawns
The illegality of completing 1.0-0-0,bxc6ep? is rather obvious (2020-09-26)
James Malcom: And for those you don't find it obvious: If the White king hasn't moved, then where did wRa5, and wBb8 if bPb5 has just done a double-step, come from? Neither can be promoted pieces, as White still has all eight pawns. Trying to finish castling and en passant therefore both produce illegal positions and thus cannot be the solution. (2020-09-26)
Henrik Juel: Continuing beating the dead horse...
How does the white player actually perform an entire move?
1.0-0-0+: Ke1-c1 and Ta1-d1
1.bxc6ep+: Pb5-c6 and remove sPc5
1.fxe8=S+: remove sYe8 and Pf7-e8 and replace wPe8 with wSe8 (three fractional actions)
2.f8=Y#: Pf7-f8 and replace wPf8 with wYf8
So a marginally better stipulation might be: 'White to move mates in less than 2 moves' (2020-09-26)
A.Buchanan: Hurray I've got the animation working! I agree with Henrik's stipulation. There is a dummy pawn on f8, but not by the Dummy Pawn rule. Instead it's the joke that does it. If Dummy Rule applied, the move would be full length! :) (2022-02-09)
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Keywords: En passant, Start a move but do not finish it, Castling, Promotion (S,B), Valladao Task (half!), Joke (End move, Start move), Dummy Pawn (not! Start move), Complete an unfinished move, waylaid (sBgh)
Genre: Retro, 2#
FEN: 1B1N1bB1/p2ppP2/2P5/R1pk1N2/1r2p3/1P2P1P1/4PP1P/R1K5
Reprints: (III) Quartz 4 1997
Input: Gerd Wilts, 1997-06-21
Last update: A.Buchanan, 2023-04-08 more...
Genre: Retro, 2#
FEN: 1B1N1bB1/p2ppP2/2P5/R1pk1N2/1r2p3/1P2P1P1/4PP1P/R1K5
Reprints: (III) Quartz 4 1997
Input: Gerd Wilts, 1997-06-21
Last update: A.Buchanan, 2023-04-08 more...
1. Tb1#
zuletzt geschah
R: 1. ... Kc2-b2 2. e5xf6ep+ f7-f5 3. e4-e5+
oder
R: 1. ... Kc1-b2 2. 0-0+
oder
R: 1. ... a2-a1=L
weiße Bauernschläge: axb3,b2xc3xd4xe5xf6,c2xd3xe4xf5xg6xh7-h8=L,e2xfxg = 12 Schläge, alle fehlenden schwarzen Steine sind erklärt, insbesondere hat der wBh2 nie die h-Linie verlassen.
Der sBh4 stammt also entweder von f7 (2 Schläge) oder von h7 (ebenfalls 2 Schläge, um den wBh2 vorbeizulassen). Damit sind auch alle fehlenden weißen Steine erklärt. Da zu diesen auch der schwarzfeldrige wLc1 gehört, kann zuzletzt nicht h5-h4? geschehen sein ('Shakhmaty v SSSR' nennt das "Farbeffekt").
zuletzt geschah
R: 1. ... Kc2-b2 2. e5xf6ep+ f7-f5 3. e4-e5+
oder
R: 1. ... Kc1-b2 2. 0-0+
oder
R: 1. ... a2-a1=L
weiße Bauernschläge: axb3,b2xc3xd4xe5xf6,c2xd3xe4xf5xg6xh7-h8=L,e2xfxg = 12 Schläge, alle fehlenden schwarzen Steine sind erklärt, insbesondere hat der wBh2 nie die h-Linie verlassen.
Der sBh4 stammt also entweder von f7 (2 Schläge) oder von h7 (ebenfalls 2 Schläge, um den wBh2 vorbeizulassen). Damit sind auch alle fehlenden weißen Steine erklärt. Da zu diesen auch der schwarzfeldrige wLc1 gehört, kann zuzletzt nicht h5-h4? geschehen sein ('Shakhmaty v SSSR' nennt das "Farbeffekt").
paul: La question est si les Blancs sont a jouer et le reponse est affirmative. Les seuls retro-jeux plausibles sont:
1.Rc1-b2 0-0;
1.Rc2-b2 e6xf6 e.p. 2.f7-f5 Tg6-a6+;
1.a2-a1F.
Donc le task Valladao. Le coup matant est 1.Tb1#
Est interessant a voir pourquoi ne va pas le retro-jeu h5-h4?.
L?analyse demontre que le seul Pion blanc transforme en en h8 a ete Pc2 et la sequence des coups a ete c2xd3xe4xf5xg6xh7-h8F. Le P blanc h6 vient de h2 sans captures, donc le P noir h4 a effectue deux prises, don?t une d?un F blanc de camps noirs. Donc h5-h4 est illegal. (Quartz 4/1997) (2010-03-22)
Henrik Juel: For the benefit of readers, whose French is a bit rusty:
Paul points out that the retroplay given on top is incorrect. Ph4 is [Pf7] who captured the dark-squared [Lc1] on its way to h4; so its latest move was g5xh4, not h5-h4. (2010-03-26)
Paulo Roque: Henrik:
Not R: 1.h5-h4. See also that [Pa7] was promoted in the square a1, at some point. But I think also possible Ph4 is [Ph7], by: h7xg6-g5xh4 or h7-h6xg5xh4 (2010-03-27)
Henrik Juel: You are right, Paulo; my mistake, not Paul's. I should have written: Ph4 is [Pf7] or [Ph7], who captured the dark-squared [Lc1] on its way to h4; so its latest move was g5xh4, not h5-h4. (2010-03-27)
James Malcom: Question: What prevents the Black king from going to c1 after castling is retracted? (2022-06-17)
comment
1.Rc1-b2 0-0;
1.Rc2-b2 e6xf6 e.p. 2.f7-f5 Tg6-a6+;
1.a2-a1F.
Donc le task Valladao. Le coup matant est 1.Tb1#
Est interessant a voir pourquoi ne va pas le retro-jeu h5-h4?.
L?analyse demontre que le seul Pion blanc transforme en en h8 a ete Pc2 et la sequence des coups a ete c2xd3xe4xf5xg6xh7-h8F. Le P blanc h6 vient de h2 sans captures, donc le P noir h4 a effectue deux prises, don?t une d?un F blanc de camps noirs. Donc h5-h4 est illegal. (Quartz 4/1997) (2010-03-22)
Henrik Juel: For the benefit of readers, whose French is a bit rusty:
Paul points out that the retroplay given on top is incorrect. Ph4 is [Pf7] who captured the dark-squared [Lc1] on its way to h4; so its latest move was g5xh4, not h5-h4. (2010-03-26)
Paulo Roque: Henrik:
Not R: 1.h5-h4. See also that [Pa7] was promoted in the square a1, at some point. But I think also possible Ph4 is [Ph7], by: h7xg6-g5xh4 or h7-h6xg5xh4 (2010-03-27)
Henrik Juel: You are right, Paulo; my mistake, not Paul's. I should have written: Ph4 is [Pf7] or [Ph7], who captured the dark-squared [Lc1] on its way to h4; so its latest move was g5xh4, not h5-h4. (2010-03-27)
James Malcom: Question: What prevents the Black king from going to c1 after castling is retracted? (2022-06-17)
comment
Keywords: En passant in the retro play, Castling, Promotion in the retro play, Valladao Task
Genre: Retro
FEN: 6NB/Q5pB/R4P1P/6P1/7p/1P4P1/1k1P1P2/b4RK1
Reprints: (V) Quartz 4 1997
Input: Gerd Wilts, 1997-06-21
Last update: Mario Richter, 2022-06-17 more...
Genre: Retro
FEN: 6NB/Q5pB/R4P1P/6P1/7p/1P4P1/1k1P1P2/b4RK1
Reprints: (V) Quartz 4 1997
Input: Gerd Wilts, 1997-06-21
Last update: Mario Richter, 2022-06-17 more...
1. Tf6! droht 2. Sf3+ g1=D 3. Txg1#
1. ... h2 2. Te6 hxg1=D,S 3. Th6#
1. ... Kh2 2. Tf3 ... 3. Txh3#
1. ... h2 2. Te6 hxg1=D,S 3. Th6#
1. ... Kh2 2. Tf3 ... 3. Txh3#
Original mit wTd1 statt wTe1 und sBd2 statt sBBe2e3, dann aber NL 1. Tf2
Korrektur in Heft 08/1936 S. 255
more ...
comment
Korrektur in Heft 08/1936 S. 255
more ...
comment
Keywords: Brian Stephenson Collection (6023), Sacrifice key (T), Model mate, Sacrifice of white pieces (T, S), pin-mate
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/4p1K1/8/8/8/4p2p/4p1p1/4RRNk
Reprints: 2 Schach ohne Partner für Könner , p. 11, 1982
58 200 Schachrätsel [Lossa] 1984
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2023-02-24 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 8/4p1K1/8/8/8/4p2p/4p1p1/4RRNk
Reprints: 2 Schach ohne Partner für Könner , p. 11, 1982
58 200 Schachrätsel [Lossa] 1984
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2023-02-24 more...
BS Problemid: 9230
Authors: Barulin, Mikhail Mikhailovich
Sources: Die Schwalbe 2002
Years: 1932
SCHRECKE: C+, popeye 4.87
1.Db4! (2.D:c5#)
1. ... T:c3,T~ 2.Sdf4#
1. ... d:c3 2.Sgf4#
1. ... d6 2.Sdf4#
1. ... Se4 2.Sgf4# (2021-07-24)
comment
1.Db4! (2.D:c5#)
1. ... T:c3,T~ 2.Sdf4#
1. ... d:c3 2.Sgf4#
1. ... d6 2.Sdf4#
1. ... Se4 2.Sgf4# (2021-07-24)
comment
Keywords: Brian Stephenson Collection (9230)
Genre: 2#
FEN: 4K3/2ppP3/2p3NR/2rk1P2/Q2p3R/1pPN2B1/3n1b2/1B4q1
Reprints: Die Schwalbe 1932
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2021-07-24 more...
Genre: 2#
FEN: 4K3/2ppP3/2p3NR/2rk1P2/Q2p3R/1pPN2B1/3n1b2/1B4q1
Reprints: Die Schwalbe 1932
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2021-07-24 more...
1. La8? Sc6! 1. Lb7? Sc6!
1. Lh1! droht 2. Tf1#
1. ... Td4 2. Sf3#
1. ... Td3 2. Tf3#
1. ... Txd2 2. Tf2#
1. ... Kd6 2. Td4#
1. ... Sd3 2. Sc4#
1. Lh1! droht 2. Tf1#
1. ... Td4 2. Sf3#
1. ... Td3 2. Tf3#
1. ... Txd2 2. Tf2#
1. ... Kd6 2. Td4#
1. ... Sd3 2. Sc4#
Keywords: Brian Stephenson Collection (9459)
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 3R4/n2rr3/8/2p1kPP1/5R2/5B1p/1n1N3Q/1K4B1
Reprints: 338 FIDE Album 1914-1944/I , p. 72, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-01-31 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 3R4/n2rr3/8/2p1kPP1/5R2/5B1p/1n1N3Q/1K4B1
Reprints: 338 FIDE Album 1914-1944/I , p. 72, 1971
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2023-01-31 more...
12 - P1026664
Viktor Chepizhny
Shakhmaty v SSSR , p. 30, 01/1966
1. Preis
40 Jahre Schachmaty
(9+11)
#3*
Viktor Chepizhny
Shakhmaty v SSSR , p. 30, 01/1966
1. Preis
40 Jahre Schachmaty
(9+11)
#3*
* 1. ... Lc3 2. Tb4# 1. ... Dc3 2. Td4#
1. Dc8? Lc3 2. Tb4+ Lxb4 3. Se5# 1. ... Dc3 2. Td4+ Dxd4 3. Sa5# 1. ... Sxc2!
1. Kd6! Sxc2 2. Sa5+ Dxa5 3. Dxd5#
1. ... Lc3 2. Sa5+
1. ... Dc3 2. Td4+
1. Dc8? Lc3 2. Tb4+ Lxb4 3. Se5# 1. ... Dc3 2. Td4+ Dxd4 3. Sa5# 1. ... Sxc2!
1. Kd6! Sxc2 2. Sa5+ Dxa5 3. Dxd5#
1. ... Lc3 2. Sa5+
1. ... Dc3 2. Td4+
im Preisbericht ('Schachmaty w SSSR' 01/1966 S.30ff) zunächst zusammen mit P1407995 mit dem 1.-2. Preis ex aequo ausgezeichnet, später (wann?) wegen der NLs in P1407995 vermutlich zum alleinigen 1. Preis aufgestiegen
Henrik Juel: dual 1.Kd6 b4 2.Db7,a4 (2023-02-27)
comment
Henrik Juel: dual 1.Kd6 b4 2.Db7,a4 (2023-02-27)
comment
Keywords: Brian Stephenson Collection (11545), Kontrawechsel, shift of focus
Genre: 3#
FEN: Q5b1/P1Kp4/p1N1N3/1p1p1p2/2k2p2/PR1Rn3/2P5/b3q3
Reprints: 282 FIDE Album 1965-1967 , p. 60, 1976
1717 Beispiele zur Ideengeschichte des Schachproblems , p. 348, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2023-02-28 more...
Genre: 3#
FEN: Q5b1/P1Kp4/p1N1N3/1p1p1p2/2k2p2/PR1Rn3/2P5/b3q3
Reprints: 282 FIDE Album 1965-1967 , p. 60, 1976
1717 Beispiele zur Ideengeschichte des Schachproblems , p. 348, 1982
Input: Brian Stephenson, 2004-08-12
Last update: Mario Richter, 2023-02-28 more...
BS Problemid: 11546
Authors: Chepizhni, Viktor I
Sources:
Years: 1966
Henrik Juel: dual 1.Sb5 Le1,Lf4 2.Tf4,Sd6+ (2023-03-20)
Henrik Juel: 1.Sb5 thr. 2.Dd4+ Txd4 3.Sc3
1... Lxe5 2.Sd6+
1... Txb5 2.Lxc6+
1... Td5 2.Dc2+
1... Ld5 2.Dxc4+ (2023-03-20)
comment
Henrik Juel: 1.Sb5 thr. 2.Dd4+ Txd4 3.Sc3
1... Lxe5 2.Sd6+
1... Txb5 2.Lxc6+
1... Td5 2.Dc2+
1... Ld5 2.Dxc4+ (2023-03-20)
comment
Keywords: Brian Stephenson Collection (11546)
Genre: 3#
FEN: B5bK/2Nr2n1/1rn2R2/R3P1B1/P1p1k3/2Q1Ppb1/1N6/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-03-20 more...
Genre: 3#
FEN: B5bK/2Nr2n1/1rn2R2/R3P1B1/P1p1k3/2Q1Ppb1/1N6/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-03-20 more...
* 1. ... Le4 2. Ke6#
* 1. ... Ld5 2. Kf5#
1. Sf2? droht 2. Ke6#
1. ... Le4 2. Txe4#
1. ... Ld5 2. Le5#
1. ... Te1!
1. Se3! droht 2. Kf5#
1. ... Le4 2. Le5#
1. ... Ld5 2. Sf5#
BS Problemid: 14968
Authors: Lukyanov, Valentin V
Sources:
Years: 1978
* 1. ... Ld5 2. Kf5#
1. Sf2? droht 2. Ke6#
1. ... Le4 2. Txe4#
1. ... Ld5 2. Le5#
1. ... Te1!
1. Se3! droht 2. Kf5#
1. ... Le4 2. Le5#
1. ... Ld5 2. Sf5#
BS Problemid: 14968
Authors: Lukyanov, Valentin V
Sources:
Years: 1978
Keywords: Theme B2, Zagoruiko, Dombrovskis theme
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.89 (2024-03-13)
FEN: 7n/4R1Q1/2pP1K1p/7R/1P1k1BN1/1P1p4/3P2bN/b2n2rr
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2024-03-14 more...
Genre: 2#
Computer test: SCHRECKE: C+, popeye 4.89 (2024-03-13)
FEN: 7n/4R1Q1/2pP1K1p/7R/1P1k1BN1/1P1p4/3P2bN/b2n2rr
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2024-03-14 more...
BS Problemid: 15051
Authors: Brabec, Juraj
Lehen, Ludovit
Sources: FIDE Album (1977-1979) 1984
Years: 1979
Teppo Mänttä: 1st-2nd Prize, Sahs/Shakhmaty (Riga), 2nd half-year, 1979 (according to yacpdb). (2021-12-26)
Henrik Juel: C+ Popeye 4.61 (2021-12-26)
Henrik Juel: 1.Tc8 thr. 2.Dd2#
1... Kxd4 2.Db2#
1... e3 2.Ld5#
1... Lh6 2.Lf7# (2021-12-26)
comment
Henrik Juel: C+ Popeye 4.61 (2021-12-26)
Henrik Juel: 1.Tc8 thr. 2.Dd2#
1... Kxd4 2.Db2#
1... e3 2.Ld5#
1... Lh6 2.Lf7# (2021-12-26)
comment
Keywords: Brian Stephenson Collection (15051)
Genre: 2#
FEN: 4R2B/6br/8/K4n2/2BPp2R/2k5/4Q3/5N1b
Input: Brian Stephenson, 2004-08-12
Genre: 2#
FEN: 4R2B/6br/8/K4n2/2BPp2R/2k5/4Q3/5N1b
Input: Brian Stephenson, 2004-08-12
16 - P1035137
Efim Rukhlis
4 Shakhmaty v SSSR , p. 21, 01/1947
Turnier Swerdlowsk 1946
1.-2. Preis
Allruss. Meisterschaft 1946/47
2. Platz
(9+9) C+
#2*
Efim Rukhlis
4 Shakhmaty v SSSR , p. 21, 01/1947
Turnier Swerdlowsk 1946
1.-2. Preis
Allruss. Meisterschaft 1946/47
2. Platz
(9+9) C+
#2*
* 1. ... Td4 2. Sc3# 1. ... Ld4 2. De4#
1. Lf2? Td4 2. Sc3#
1. ... Ld4 2. De4#
1. ... Te3!
1. d4! droht 2. Sb6#
1. ... Td3 2. De4#
1. ... Ld3 2. Sc3#
1. ... Le4+ 2. Dxe4#
1. ... Ta6 2. Sb4#
1. ... Sxd7 2. De6#
1. ... Txd4 2. Sb4#
1. ... Lxd4 2. Sf6#
Breuer: Themawechsel in den Paraden: vom Grimshaw zum Thema A.
1. Lf2? Td4 2. Sc3#
1. ... Ld4 2. De4#
1. ... Te3!
1. d4! droht 2. Sb6#
1. ... Td3 2. De4#
1. ... Ld3 2. Sc3#
1. ... Le4+ 2. Dxe4#
1. ... Ta6 2. Sb4#
1. ... Sxd7 2. De6#
1. ... Txd4 2. Sb4#
1. ... Lxd4 2. Sf6#
Breuer: Themawechsel in den Paraden: vom Grimshaw zum Thema A.
1.-2.Preis Allunions-Turnier 1946, ausgerichtet vom Komitee für Körperkultur und Sport des Gebiets Swerdlowsk, gewidmet dem 20. Jubiläum der Swerdlowsker Schachorganisation, Abteilungen: 2#, #3 und Studien; 30 Teilnehmer mit 105 Aufgaben.
PR: V. Bron, Sverdlovsk
Im Nachdruck in 'Droit et Liberté' fälschlich zusätzlicher sBf4, außerdem dort Quellenangabe ungenau: "Schachmaty 1947"
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comment
PR: V. Bron, Sverdlovsk
Im Nachdruck in 'Droit et Liberté' fälschlich zusätzlicher sBf4, außerdem dort Quellenangabe ungenau: "Schachmaty 1947"
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comment
Keywords: Brian Stephenson Collection (20066), Grimshaw, selfpinning, Line opening, Liniensperrung, Rukhlis theme, Themawechsel, theme A
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 5n1b/B2N4/3p2Qn/1B1k4/r7/3P3r/N6p/1b1RR2K
Reprints: 70 Schach-Express , p. 92, 02/06/1947
VI Die Schwalbe 191, p. 117, 01-02/1948
- Szachy , p. 161, 09/1948
I Szachy 11-12/1948
31 Droit et Liberté 16/06/1950
Zadaniowiec 2 03-04/1956
62 Problemista 08/1962
Chess Problems: Introduction to an Art 1963
219 FIDE Album 1945-1955 , p. 53, 1964
V Szachy 04/1968
1209 Beispiele zur Ideengeschichte des Schachproblems , p. 243, 1982
1 Rochade 214, p. 20, 22/05/1982
Solving in Style [Nunn] 1985
Input: Brian Stephenson, 2004-08-12
Last update: Marcin Banaszek, 2024-02-28 more...
Genre: 2#
Computer test: Juel: Popeye 4.61
FEN: 5n1b/B2N4/3p2Qn/1B1k4/r7/3P3r/N6p/1b1RR2K
Reprints: 70 Schach-Express , p. 92, 02/06/1947
VI Die Schwalbe 191, p. 117, 01-02/1948
- Szachy , p. 161, 09/1948
I Szachy 11-12/1948
31 Droit et Liberté 16/06/1950
Zadaniowiec 2 03-04/1956
62 Problemista 08/1962
Chess Problems: Introduction to an Art 1963
219 FIDE Album 1945-1955 , p. 53, 1964
V Szachy 04/1968
1209 Beispiele zur Ideengeschichte des Schachproblems , p. 243, 1982
1 Rochade 214, p. 20, 22/05/1982
Solving in Style [Nunn] 1985
Input: Brian Stephenson, 2004-08-12
Last update: Marcin Banaszek, 2024-02-28 more...
* 1. ... Sh3-g1,Sh~ 2. Se6xg5#
* 1. ... Sb6-a8,Sb~ 2. Tb4xc4#
1. Ta3-d3? a4-a3!
1. Dg4xg5! Zugzwang
1. ... Sh3-g1,Sh~ 2. Dg5xf4#
1. ... Sh3xg5 2. Se6xg5#
1. ... Sb6-a8,Sb~ 2. Dg5-d5#
1. ... Ke4-f3 2. Dg5-g2#
1. ... f4-f3 2. Dg5-e5#
1. ... f4xe3 2. Ta3xe3#
* 1. ... Sb6-a8,Sb~ 2. Tb4xc4#
1. Ta3-d3? a4-a3!
1. Dg4xg5! Zugzwang
1. ... Sh3-g1,Sh~ 2. Dg5xf4#
1. ... Sh3xg5 2. Se6xg5#
1. ... Sb6-a8,Sb~ 2. Dg5-d5#
1. ... Ke4-f3 2. Dg5-g2#
1. ... f4-f3 2. Dg5-e5#
1. ... f4xe3 2. Ta3xe3#
Keywords: Brian Stephenson Collection (20175)
Genre: 2#
Computer test: Popeye 4.67
FEN: 8/2p4p/1nP1N1pP/K1P3p1/pRb1kpQ1/R3N2n/p1P5/B7
Input: Brian Stephenson, 2004-08-12
Last update: Marcin Banaszek, 2017-06-08 more...
Genre: 2#
Computer test: Popeye 4.67
FEN: 8/2p4p/1nP1N1pP/K1P3p1/pRb1kpQ1/R3N2n/p1P5/B7
Input: Brian Stephenson, 2004-08-12
Last update: Marcin Banaszek, 2017-06-08 more...
1. Sc4! droht 2. Se3#
1. ... Ke4 2. Dxd3#
1. ... Kd4 2. De5#
1. ... De4 2. Dd6#
1. ... Ld4 2. Lc6#
1. ... Te8 2. Sxb6#
BS Problemid: 21331
Authors: Rukhlis, Efim
Sources: Chess Problems: Introduction to an Art 1963
FIDE Album (1956-1958) 1961
Years: 1957
1. ... Ke4 2. Dxd3#
1. ... Kd4 2. De5#
1. ... De4 2. Dd6#
1. ... Ld4 2. Lc6#
1. ... Te8 2. Sxb6#
BS Problemid: 21331
Authors: Rukhlis, Efim
Sources: Chess Problems: Introduction to an Art 1963
FIDE Album (1956-1958) 1961
Years: 1957
Keywords: Brian Stephenson Collection (21331), Flight-giving key (doppelt), Blocknutzung, Deckungsverlust
Genre: 2#
Computer test: SCHRECKE: popeye 4.85
FEN: 1r6/3B1p1q/1p1N1R1r/2pk4/R7/3p2Q1/K1P5/b7
Reprints: FIDE Album 1956-1958 1961
Chess Problems: Introduction to an Art 1963
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-27 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.85
FEN: 1r6/3B1p1q/1p1N1R1r/2pk4/R7/3p2Q1/K1P5/b7
Reprints: FIDE Album 1956-1958 1961
Chess Problems: Introduction to an Art 1963
Input: Brian Stephenson, 2004-08-12
Last update: Dieter Berlin, 2022-10-27 more...
BS Problemid: 22878
Authors: Kubbel, Leonid I
Sources:
Years: 1952
Rosalie Fay: 1. Sd4 zz b4 2. De2+ Kc3 3. Sb5+ Kb3 4. Sc5#;
1. ... g5 2. Dc2+ Ke3 3. Sf5+ Kf3 4. Se5#;
1. ... Kc3 2. De3+ Kc4 3. Sb6+ Kb4 4. Sc6#;
2. ... Kb2 3. Db3+ Ka1 4. Sc2#; 3. ... Kc1 4. Dc2#
C+ Popeye Windows-64Bit v4.69 (2023-12-30)
comment
1. ... g5 2. Dc2+ Ke3 3. Sf5+ Kf3 4. Se5#;
1. ... Kc3 2. De3+ Kc4 3. Sb6+ Kb4 4. Sc6#;
2. ... Kb2 3. Db3+ Ka1 4. Sc2#; 3. ... Kc1 4. Dc2#
C+ Popeye Windows-64Bit v4.69 (2023-12-30)
comment
Keywords: Brian Stephenson Collection (22878)
Genre: n#
FEN: 8/2KN4/6p1/1p6/4Q3/6P1/3kN3/8
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2011-02-18 more...
Genre: n#
FEN: 8/2KN4/6p1/1p6/4Q3/6P1/3kN3/8
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2011-02-18 more...
BS Problemid: 34729
Authors: Ponomarev, Rashid
Sources: FIDE Album (1914-1944) (II) 1972
Years: 1939
vergleiche P1065679
Henrik Juel: 1.Sg7 thr. 2.Sa5+ Ke5 3.Sxc4#
dual after 1... Dc1,Df1: 2.Sd4+,Sb8+ (2022-01-03)
comment
Henrik Juel: 1.Sg7 thr. 2.Sa5+ Ke5 3.Sxc4#
dual after 1... Dc1,Df1: 2.Sd4+,Sb8+ (2022-01-03)
comment
Keywords: Brian Stephenson Collection (34729)
Genre: 3#
FEN: 2K5/1B6/2N1Npp1/3k1P1p/1Qb2n1r/1p2Pp1p/5P2/3q2r1
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2022-01-03 more...
Genre: 3#
FEN: 2K5/1B6/2N1Npp1/3k1P1p/1Qb2n1r/1p2Pp1p/5P2/3q2r1
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2022-01-03 more...
BS Problemid: 34735
Authors: Goldstein, Alex
Sources: FIDE Album (1914-1944) (II) 1972
Years: 1940
Henrik Juel: C+ Popeye 4.61 (2022-05-28)
Henrik Juel: 1.Df7 thr. 2.Txh3+ Sxh4 3.g5#
1... Tb2/Tc2/Td2/Tf2 2.c4/b4/e4/d4 thr. 3.g5# (2022-05-28)
comment
Henrik Juel: 1.Df7 thr. 2.Txh3+ Sxh4 3.g5#
1... Tb2/Tc2/Td2/Tf2 2.c4/b4/e4/d4 thr. 3.g5# (2022-05-28)
comment
Keywords: Brian Stephenson Collection (34735)
Genre: 3#
FEN: 6Q1/4p2N/2n4k/8/K5Pr/1PPPPp1R/p4rn1/q3bb2
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-05-28 more...
Genre: 3#
FEN: 6Q1/4p2N/2n4k/8/K5Pr/1PPPPp1R/p4rn1/q3bb2
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-05-28 more...
BS Problemid: 34764
Authors: Svergunov, V
Sources:
Years: 1957
Keywords: Brian Stephenson Collection (34764)
Genre: 3#
FEN: 3k4/R7/8/8/2n5/8/R7/4K3
Input: Brian Stephenson, 2004-08-12
Genre: 3#
FEN: 3k4/R7/8/8/2n5/8/R7/4K3
Input: Brian Stephenson, 2004-08-12
BS Problemid: 34777
Authors: Nagnibida, Nikolai
Sources:
Years: 1964
Henrik Juel: C+ Popeye 4.61 (2022-04-16)
Henrik Juel: 1.Sf5 thr. 2.Sce7+ Ke6 3.Kb4#
1... Tfxf5,Tgxf5 2.Kc3+
1... Tf4 2.Sxe3+
1... Sf4 2.Kb4+ Ke4 3.Scd6,Sfd6# (mate dual)
1... Lxf5 2.Kb4+
1... Ke6 2.Te4+ (2022-04-16)
comment
Henrik Juel: 1.Sf5 thr. 2.Sce7+ Ke6 3.Kb4#
1... Tfxf5,Tgxf5 2.Kc3+
1... Tf4 2.Sxe3+
1... Sf4 2.Kb4+ Ke4 3.Scd6,Sfd6# (mate dual)
1... Lxf5 2.Kb4+
1... Ke6 2.Te4+ (2022-04-16)
comment
Keywords: Brian Stephenson Collection (34777)
Genre: 3#
FEN: 2N2n2/2R5/1p4bN/3k2r1/R5p1/PK1ppr1n/BB6/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-04-16 more...
Genre: 3#
FEN: 2N2n2/2R5/1p4bN/3k2r1/R5p1/PK1ppr1n/BB6/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-04-16 more...
BS Problemid: 34788
Authors: Feoktistov, Aleksandr
Sources:
Years: 1969
Henrik Juel: C+ Popeye 4.61 (2022-02-15)
Henrik Juel: 1.Dh3 thr. 2.h7+ Kxg7 3.h8=D#
1... Tc8/Ta8/f6 2.Dd3/Dg2/Le6+ (2022-02-15)
comment
Henrik Juel: 1.Dh3 thr. 2.h7+ Kxg7 3.h8=D#
1... Tc8/Ta8/f6 2.Dd3/Dg2/Le6+ (2022-02-15)
comment
Keywords: Brian Stephenson Collection (34788)
Genre: 3#
FEN: 6k1/5pB1/7P/r2p1B2/1br2p2/1Q6/3p3K/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-02-15 more...
Genre: 3#
FEN: 6k1/5pB1/7P/r2p1B2/1br2p2/1Q6/3p3K/8
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2022-02-15 more...
BS Problemid: 34806
Authors: Chulkov, B
Paramonov, M
Sources:
Years: 1983
Roland Ott: Antizipiert durch P1043501 (2023-07-03)
Henrik Juel: C+ Popeye 4.61, apart from several mate duals (2023-07-03)
Henrik Juel: 1.Dc2 thr. 2.Sh5+ Kxe4 3.Te3# (2023-07-03)
comment
Henrik Juel: C+ Popeye 4.61, apart from several mate duals (2023-07-03)
Henrik Juel: 1.Dc2 thr. 2.Sh5+ Kxe4 3.Te3# (2023-07-03)
comment
Keywords: Brian Stephenson Collection (34806)
Genre: 3#
FEN: 1qbn3B/8/7p/1p2n1p1/3rPkpb/3R2N1/B2P1rPP/K2QN3
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-07-03 more...
Genre: 3#
FEN: 1qbn3B/8/7p/1p2n1p1/3rPkpb/3R2N1/B2P1rPP/K2QN3
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-07-03 more...
1. Sg5! droht 2. Sxf7 ... 3. Sh6 ... 4. Sxg4#
1. ... e4 2. Th1+ Kxg2 3. Kxd6 Kf2 4. Txd2#
1. ... d5 2. Lxe5 d4 3. Se4 ... 4. Lxg3#
1. ... e4 2. Th1+ Kxg2 3. Kxd6 Kf2 4. Txd2#
1. ... d5 2. Lxe5 d4 3. Se4 ... 4. Lxg3#
Keywords: Brian Stephenson Collection (37472)
Genre: n#
FEN: 8/3K1p2/3p1P2/4p3/3BN1p1/3pP1p1/3p2Pk/3R2R1
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2024-03-21 more...
Genre: n#
FEN: 8/3K1p2/3p1P2/4p3/3BN1p1/3pP1p1/3p2Pk/3R2R1
Input: Brian Stephenson, 2004-08-12
Last update: Rainer Staudte, 2024-03-21 more...
BS Problemid: 37480
Authors: Pachman, Vladimir
Sources:
Years: 1959
Rosalie Fay: 1. Dd4 (droht 2. Db6) Kxa2 2. Lxb2 zz Kb3 3. Lc1 zz K~ 4. Db2#;
1. ... Lxc3 2. Dc4 zz Kb2 3. Db3+ Ka1 4. Db1#;
2. ... Lb2 3. Db3 zz L~ 4. Db1#;
2. ... Ld4/Le5/Lf6/Lg7/Lh8 3. Dc2 ~ 4. Db1#
C+ Popeye Windows-64Bit v4.69 (2023-12-31)
comment
1. ... Lxc3 2. Dc4 zz Kb2 3. Db3+ Ka1 4. Db1#;
2. ... Lb2 3. Db3 zz L~ 4. Db1#;
2. ... Ld4/Le5/Lf6/Lg7/Lh8 3. Dc2 ~ 4. Db1#
C+ Popeye Windows-64Bit v4.69 (2023-12-31)
comment
Keywords: Brian Stephenson Collection (37480)
Genre: n#
FEN: 8/8/8/p7/P6Q/2B1p3/Bb2K3/k7
Input: Brian Stephenson, 2004-08-12
Genre: n#
FEN: 8/8/8/p7/P6Q/2B1p3/Bb2K3/k7
Input: Brian Stephenson, 2004-08-12
BS Problemid: 37483
Authors: Havel, Miroslav
Sources: FIDE Album (1959-1961) 1966
Years: 1960
Teppo Mänttä: 1.Df1! (2.Sd8+) 1.--- c2 2.Dxa6+ Kxa6 3.Tb3 --- 4.Tb6(MM), 1.--- Kc8 2.Dxf5+ gxf5 3.Tg7 --- 4.Tc7#(MM), 1.--- Kxc6 2.Dxa6+ Kd7 3.Te3 --- 4.De6#(MM). There is a major dual 1.Df1 Kc8 2.Dxf5+ or 2.Df4!. The dual has been known for a long time, nowadays it is mentioned for example in yacpdb. (2021-07-31)
milan: +sLh8 M.Frelih (2021-09-05)
Teppo Mänttä: This is supposed to be a Bohemian problem with three model mates. +sLh8 prevents one thematical variation and allows 1.--- Kc8 2.Df4 (without a model mate). (2021-09-06)
comment
milan: +sLh8 M.Frelih (2021-09-05)
Teppo Mänttä: This is supposed to be a Bohemian problem with three model mates. +sLh8 prevents one thematical variation and allows 1.--- Kc8 2.Df4 (without a model mate). (2021-09-06)
comment
Keywords: Brian Stephenson Collection (37483)
Genre: n#
FEN: 8/1k5K/p1N2pp1/B2p1p2/7p/2p3RQ/8/7n
Input: Brian Stephenson, 2004-08-12
Genre: n#
FEN: 8/1k5K/p1N2pp1/B2p1p2/7p/2p3RQ/8/7n
Input: Brian Stephenson, 2004-08-12
BS Problemid: 37485
Authors: Pachman, Vladimir
Sources:
Years: 1963
Rosalie Fay: 1. Lf7 zz Kf5 2. De3 ~ 3. Df2+ Ke4 4. Sc5#;
1. ... Kd5 2. Db4 (droht 3. Sd8+) Kc6 3. Le8+ Kd5 4. Sc7#;
1. ... h6/h5 2. Lg6+ Kd5 3. Dc5+ Kxe6 4. Dc6#
C+ Popeye Windows-64Bit v4.69 (2023-12-31)
comment
1. ... Kd5 2. Db4 (droht 3. Sd8+) Kc6 3. Le8+ Kd5 4. Sc7#;
1. ... h6/h5 2. Lg6+ Kd5 3. Dc5+ Kxe6 4. Dc6#
C+ Popeye Windows-64Bit v4.69 (2023-12-31)
comment
Keywords: Brian Stephenson Collection (37485)
Genre: n#
FEN: 4B3/4p2p/4N3/4p3/4k1p1/Q7/8/5K2
Input: Brian Stephenson, 2004-08-12
Genre: n#
FEN: 4B3/4p2p/4N3/4p3/4k1p1/Q7/8/5K2
Input: Brian Stephenson, 2004-08-12
BS Problemid: 38678
Authors: Marandiuk, Mikhail
Stolyarov, V
Sources:
Years: 1985
Teppo Mänttä: Reprint: nr. 424 FIDE-ALBUM 1983-1985 (Zagreb 1992). (2022-10-12)
Henrik Juel: C+ Popeye 4.61 (2022-10-12)
Henrik Juel: 1.Td7 thr. 2.Sxc4+ Kxc4/Kd3 3.Sdb6/Sf4+
1... c2 2.Sg6+ Kd3 3.Sdf4+ Ke3 4.Ld4#
1... e3 2.Sf6+ Kxe5 3.Sh7+ (2022-10-12)
comment
Henrik Juel: C+ Popeye 4.61 (2022-10-12)
Henrik Juel: 1.Td7 thr. 2.Sxc4+ Kxc4/Kd3 3.Sdb6/Sf4+
1... c2 2.Sg6+ Kd3 3.Sdf4+ Ke3 4.Ld4#
1... e3 2.Sf6+ Kxe5 3.Sh7+ (2022-10-12)
comment
Keywords: Brian Stephenson Collection (38678)
Genre: n#
FEN: 8/p5B1/K2R4/3NN3/1Ppkp1P1/2p2ppn/Pp1p4/1rbn4
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2011-03-16 more...
Genre: n#
FEN: 8/p5B1/K2R4/3NN3/1Ppkp1P1/2p2ppn/Pp1p4/1rbn4
Input: Brian Stephenson, 2004-08-12
Last update: Felber, Volker, 2011-03-16 more...
BS Problemid: 42664
Authors: Kuzovkov, Aleksandr
Kuznetsov, Mikhail
Sources:
Years: 1985
Henrik Juel: 1.Dh3 thr. 2.Lb1
1... Le2 2.Td3
1... g4 2.Sg5+
1... d5 2.Td4+
1... bxc6 2.Td5
1... Lf8 2.Sxd6+ (2023-09-16)
Henrik Juel: dual 1... Th6 2.Sh4,Sxg5+ (2023-09-16)
comment
1... Le2 2.Td3
1... g4 2.Sg5+
1... d5 2.Td4+
1... bxc6 2.Td5
1... Lf8 2.Sxd6+ (2023-09-16)
Henrik Juel: dual 1... Th6 2.Sh4,Sxg5+ (2023-09-16)
comment
Keywords: Brian Stephenson Collection (42664)
Genre: 3#
FEN: 6nB/1p2b3/1pPp2r1/5ppQ/2N1kp2/5N2/B1nR1P1P/3b2K1
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-09-15 more...
Genre: 3#
FEN: 6nB/1p2b3/1pPp2r1/5ppQ/2N1kp2/5N2/B1nR1P1P/3b2K1
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2023-09-15 more...
BS Problemid: 44831
Authors: Kuzovkov, Aleksandr
Sources: The Problemist 2002
FIDE Album (1983-1985) 1992
Years: 1985
SCHRECKE: C+, popeye 4.85
1.Sb4! (2.Dd5#)
1. ... L:e4 2.D:c5#
1. ... d:e6 2.Sc6#
1. ... Th5 2.S:c2#
1. ... Se5 2.D:e5#
1.. .. Sf4,Se7 2.De5# (2020-11-23)
comment
1.Sb4! (2.Dd5#)
1. ... L:e4 2.D:c5#
1. ... d:e6 2.Sc6#
1. ... Th5 2.S:c2#
1. ... Se5 2.D:e5#
1.. .. Sf4,Se7 2.De5# (2020-11-23)
comment
Keywords: Brian Stephenson Collection (44831)
Genre: 2#
FEN: 8/3p2p1/p2KP1n1/N1pN1Q2/2PkP3/b1p3R1/2b4r/8
Reprints: The Problemist 1985
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2020-11-23 more...
Genre: 2#
FEN: 8/3p2p1/p2KP1n1/N1pN1Q2/2PkP3/b1p3R1/2b4r/8
Reprints: The Problemist 1985
Input: Brian Stephenson, 2004-08-12
Last update: Roland Ott, 2020-11-23 more...
1. e4! droht 2. a8=D#,T#
1. ... fxe3ep 2. De5#
1. ... 0-0 2. Dg7#
1. ... Dxe4 2. Dxh8#
1. ... fxe3ep 2. De5#
1. ... 0-0 2. Dg7#
1. ... Dxe4 2. Dxh8#
Keywords: Valladao Task, En passant, Castling, Promotion, Promotion key
FEN: 4k2r/P1pR4/1N6/6p1/5p2/2Q3r1/4P3/K4Rnq
Input: Ivan Antonov, 2009-08-04
Last update: James Malcom, 2022-06-17 more...
FEN: 4k2r/P1pR4/1N6/6p1/5p2/2Q3r1/4P3/K4Rnq
Input: Ivan Antonov, 2009-08-04
Last update: James Malcom, 2022-06-17 more...
1. Lg7 f3 2. Lf6 Te8 3. Lc3 Te4 4. Ld2 Tc4 5. Lg5 Tc7 6. Ld8 Td7 7. Lb6 Td5 8. Le3 Tb5 9. Txb5 f2 10. Lc1#
F4LT WEB
Anton Baumann: 1. ... Te8 2.Lh6 Td8 3.Lg5 Td7 4.Lh4 Tc7 5.Lf6 f3 6.Ld8 ...
abgesehen vom Mattdual (10.Lc1/Lc5#) C+ Gustav 4.2a (2023-02-27)
comment
Anton Baumann: 1. ... Te8 2.Lh6 Td8 3.Lg5 Td7 4.Lh4 Tc7 5.Lf6 f3 6.Ld8 ...
abgesehen vom Mattdual (10.Lc1/Lc5#) C+ Gustav 4.2a (2023-02-27)
comment
Keywords: Miniature Collection (0066134)
Genre: n#
FEN: 2r4B/8/8/8/p4p2/k7/8/KR6
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
Genre: n#
FEN: 2r4B/8/8/8/p4p2/k7/8/KR6
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
1. Dd3
A13n 4m
Henrik Juel: C+ Popeye 4.61 (the double threat never materializes) (2022-04-11)
Henrik Juel: 1.Dd3 Kh4/Kg5/Kxh4 2.Lg3/Dg6/Df5+ (2022-04-11)
comment
Henrik Juel: C+ Popeye 4.61 (the double threat never materializes) (2022-04-11)
Henrik Juel: 1.Dd3 Kh4/Kg5/Kxh4 2.Lg3/Dg6/Df5+ (2022-04-11)
comment
Keywords: Miniature Collection (0037857)
Genre: 3#
FEN: 1B6/8/7p/1Q5P/6k1/8/6P1/K7
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-04-10 more...
Genre: 3#
FEN: 1B6/8/7p/1Q5P/6k1/8/6P1/K7
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2022-04-10 more...
1. Lh4 Ld5 2. Sf2 Lb3 3. Se4 Lc2 4. Sd2#
1. ... Lxh1 2. Dd1+ Kg2 3. De1 Kf3 4. De4#
1. ... Lxd3 2. Df3+ Kg1 3. Dh3 Le2 4. Lf2#
1. ... Lf5 2. Dd1+ Kg2 3. Sf2 Kh2 4. Dh1#
1. ... Lf3 2. Dxf3+ Kg1 3. Sg3 Kh2 4. Dh1#
1. ... Lxh1 2. Dd1+ Kg2 3. De1 Kf3 4. De4#
1. ... Lxd3 2. Df3+ Kg1 3. Dh3 Le2 4. Lf2#
1. ... Lf5 2. Dd1+ Kg2 3. Sf2 Kh2 4. Dh1#
1. ... Lf3 2. Dxf3+ Kg1 3. Sg3 Kh2 4. Dh1#
1. Da8! droht 2. h8=D#,h8=T#
1. ... Lg2 2. Dxg2#
1. ... Lg2 2. Dxg2#
E4aB
vf: a1<>h1, Eric Duciaume, 1994, Apprenti Sorcier
Henrik Juel: C+ Popeye 4.61 (except for the promotion mate dual) (2021-07-29)
comment
vf: a1<>h1, Eric Duciaume, 1994, Apprenti Sorcier
Henrik Juel: C+ Popeye 4.61 (except for the promotion mate dual) (2021-07-29)
comment
1. Df8 Ka5,Le7,Ld6,La3 2. Da8#
1. ... Lxe1,Ld2,Lc3,La5,La3 2. Da3#
1. ... Lxf8,Le7,Ld6,La3 2. Sb6#
1. ... Lc5,La5 2. Sxc5#
1. ... Lxe1,Ld2,Lc3,La5,La3 2. Da3#
1. ... Lxf8,Le7,Ld6,La3 2. Sb6#
1. ... Lc5,La5 2. Sxc5#
Keywords: Miniature Collection (0001318)
Genre: 2#
FEN: 8/3N4/8/1p6/kb6/8/K7/4BQ2
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2020-11-01 more...
Genre: 2#
FEN: 8/3N4/8/1p6/kb6/8/K7/4BQ2
Input: Felber, Volker, 2010-09-11
Last update: Rainer Staudte, 2020-11-01 more...
* 1. ... Ka6 2. Kxa4 Ka7 3. Ka5 Ka8 4. Kb6 Kb8 5. Tc4 Ka8 6. Tc8#
1. c4 Ka6 2. c5 Ka5 3. c6 Ka6 4. c7 Ka5 5. c8=T Ka6 6. Ta8#
1. c4 Ka6 2. c5 Ka5 3. c6 Ka6 4. c7 Ka5 5. c8=T Ka6 6. Ta8#
1. Le6!
1. Sc5 Ka2 (1... a3 2. Sd3 Ka2 3. Sc1+ Ka1 4. Tb3 a2 5. Kb7 a5 6. Sd3 a4 7. Tc3 Kb1 8. Tc1#) 2. Se4 Ka3 3. Tb1 Ka2 4. Sc3+ Ka3 5. Sb5+ Ka2 6. Tb4 a3 7. Sc3+ Ka1 8. Tb1#
T22S mm
SCHRECKE: 2 Kurzlösungen in 7 Zügen: 1. Sc5, 1. Ka5
z.B.: 1. Ka5 Ka2 2. Kxa4 Ka1 3. Ka3 a5 4. Sc5 a4 5. Sb7 Kb1 6. Tc8 Ka1 7. Tc1# (2022-12-11)
comment
SCHRECKE: 2 Kurzlösungen in 7 Zügen: 1. Sc5, 1. Ka5
z.B.: 1. Ka5 Ka2 2. Kxa4 Ka1 3. Ka3 a5 4. Sc5 a4 5. Sb7 Kb1 6. Tc8 Ka1 7. Tc1# (2022-12-11)
comment
Keywords: Miniature Collection (0334517)
Genre: n#
FEN: 1R6/p2N4/K7/8/p7/8/8/k7
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
Genre: n#
FEN: 1R6/p2N4/K7/8/p7/8/8/k7
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
1. De6! Kg5 2. Df7 Kh6 3. Dg8 Kh5 4. Dg7 Kh4 5. Dg6 Kh3 6. Dg3#
1. ... Kf3 2. De5 Kg4 3. Df6 Kh5 4. Dg7 Kh4 5. Dg6 Kh3 6. Dg3#
1. ... Kf3 2. De5 Kg4 3. Df6 Kh5 4. Dg7 Kh4 5. Dg6 Kh3 6. Dg3#
1... Ka5/Kc6 2. Db4/De6;
1. Dc8! (Zugzwang) ... Ka5/Kc6 2. Dc7/De6, ... c6/c5/a5 2. Dd8/Dc5/Db7
1. Dc8! (Zugzwang) ... Ka5/Kc6 2. Dc7/De6, ... c6/c5/a5 2. Dd8/Dc5/Db7
m24 mm
vf: Robert Lincoln, 2002, Still More Fun with Chess Miniatures
SCHRECKE: C+, popeye 4.87 (2023-04-15)
comment
vf: Robert Lincoln, 2002, Still More Fun with Chess Miniatures
SCHRECKE: C+, popeye 4.87 (2023-04-15)
comment
Keywords: Miniature Collection (0251863)
Genre: 2#
FEN: K7/2p5/pk6/8/6Q1/B1N5/8/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
Genre: 2#
FEN: K7/2p5/pk6/8/6Q1/B1N5/8/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
1. e4 h4 2. e5 h3 3. Te4 h2 4. Le1#
1. Thh2!
1. Db8? (Zugzwang) ... e2/Ke2 2. Df4/Dh2, ... c3!;
1. Db5? ... c3/e2 2. Dd3/Dg5, ... Ke2!;
1. Da6! (2. Da2) ... c3/e2/Ke2 2. Dd3/Dh6/Da2
1. Db5? ... c3/e2 2. Dd3/Dg5, ... Ke2!;
1. Da6! (2. Da2) ... c3/e2/Ke2 2. Dd3/Dh6/Da2
Keywords: Miniature Collection (0008094)
Genre: 2#
FEN: 8/1Q6/8/8/1Kp1B3/4p3/3k4/7R
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
Genre: 2#
FEN: 8/1Q6/8/8/1Kp1B3/4p3/3k4/7R
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
1. Lc8
B19LD C4m fm
vf: b1=a1, Wjatscheslaw Antipow, 10.07.1997, Kudesnik, #39;
a1<>h1, Mato Prikril, 1963, Bilten
SCHRECKE: C+, popeye 4.87
1.Lc8! (Zugzwang)
1. ... e5 2.Dd2#
1. ... e6 2.Lb7#
1. ... e:d6 2.De4# (2021-09-12)
comment
vf: b1=a1, Wjatscheslaw Antipow, 10.07.1997, Kudesnik, #39;
a1<>h1, Mato Prikril, 1963, Bilten
SCHRECKE: C+, popeye 4.87
1.Lc8! (Zugzwang)
1. ... e5 2.Dd2#
1. ... e6 2.Lb7#
1. ... e:d6 2.De4# (2021-09-12)
comment
1. Df3! droht 2. Dxb7#
1. ... Ld5 2. Dxf8#
1. ... Tb8 2. Da3#
1. ... Ld5 2. Dxf8#
1. ... Tb8 2. Da3#
1. Tc4 Ld7 2. Se2 La4 3. Sd4 Ld1 4. Tc2
D8b
Henrik Juel: C+ Popeye 4.61 (2022-04-11)
Henrik Juel: 1... Ld1 2.Sb5 thr. 3.Sd4 thr. 4.Tc2 (2022-04-11)
comment
Henrik Juel: C+ Popeye 4.61 (2022-04-11)
Henrik Juel: 1... Ld1 2.Sb5 thr. 3.Sd4 thr. 4.Tc2 (2022-04-11)
comment
Keywords: Miniature Collection (0332588)
Genre: n#
FEN: 8/8/2R5/8/b7/2N5/p7/k1K5
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-04-10 more...
Genre: n#
FEN: 8/8/2R5/8/b7/2N5/p7/k1K5
Input: Zuncke/Bruder, 2010-09-11
Last update: Rainer Staudte, 2022-04-10 more...
1. Ta8 c3 2. La7 Ka5 3. Lc5#
Keywords: Miniature Collection (0334356)
Genre: 3#
FEN: 8/8/R7/8/1kp5/N7/2K5/6B1
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
Genre: 3#
FEN: 8/8/R7/8/1kp5/N7/2K5/6B1
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
1. Kb1! droht 2. Sc2#
1. ... Sb7 2. Dg3#
1. ... Sc4 2. Td3#
1. ... Sb7 2. Dg3#
1. ... Sc4 2. Td3#
Keywords: Miniature Collection (0011505), Aristocrat, Minimal, Miniature
Genre: 2#
FEN: 1Q6/8/8/n7/1N1R4/k7/2K5/3B4
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-01-18 more...
Genre: 2#
FEN: 1Q6/8/8/n7/1N1R4/k7/2K5/3B4
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-01-18 more...
1. De8? ... Ka6/b4 2. Da8/Sc4, ... Kb4!;
1. Da1! (Zugzwang) ... Ka6/b4 2. Sc5/Sc3, ... Kb4/ba4 2. Dc3/Da4
1. Da1! (Zugzwang) ... Ka6/b4 2. Sc5/Sc3, ... Kb4/ba4 2. Dc3/Da4
Keywords: Miniature Collection (0251432)
Genre: 2#
FEN: 7Q/8/1N2R3/kp6/N7/8/2K5/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
Genre: 2#
FEN: 7Q/8/1N2R3/kp6/N7/8/2K5/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
a) 1. d3 Kc5 2. Se8 Kb5 3. Sc7+ Kc5 4. d4#;
b) 1. Kb4;
c) 1. f6
b) 1. Kb4;
c) 1. f6
A12TB1 BUa2 e292
Henrik Juel: C+ Popeye 4.61, except for one mate dual in c) (2022-04-11)
Henrik Juel: b) 1.Kb4 Kd4 2.Sh5 Kd5 3.Sf4+ Kd4 4.c3#
c) 1.f6 Kc5 2.f7 Kd5/Kb5 3.f8=T/f8=D (2022-04-11)
Henrik Juel: sorry, C+ Popeye 4.61 (no mate duals) (2022-04-11)
comment
Henrik Juel: C+ Popeye 4.61, except for one mate dual in c) (2022-04-11)
Henrik Juel: b) 1.Kb4 Kd4 2.Sh5 Kd5 3.Sf4+ Kd4 4.c3#
c) 1.f6 Kc5 2.f7 Kd5/Kb5 3.f8=T/f8=D (2022-04-11)
Henrik Juel: sorry, C+ Popeye 4.61 (no mate duals) (2022-04-11)
comment
1. Sh8! Le6 2. Dd4 La2 3. Dg7#
1. ... e6 2. Dg4 Kxh8 3. Dg7#
1. ... e6 2. Dg4 Kxh8 3. Dg7#
55 - P1135945
Galsanzhamtsin Tsogniysuren
Shakhmaty v SSSR 07/1983
11. Thematurnier Sp. Lob
(3+2)
#4
Galsanzhamtsin Tsogniysuren
Shakhmaty v SSSR 07/1983
11. Thematurnier Sp. Lob
(3+2)
#4
1. Ld2 Ka7 2. Lb5 Ka8 3. Le3 d2 4. Lc6#
Keywords: Miniature Collection (0334508)
Genre: n#
FEN: 8/2K5/k1B5/8/8/3pB3/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
Genre: n#
FEN: 8/2K5/k1B5/8/8/3pB3/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
1. Lh8! Sf6 2. Dg6 Ke5 3. De4#
Keywords: Miniature Collection (0048146), Miniature, Cheney-Loyd, pin-mate
Genre: 3#
Computer test: SCHRECKE: popeye 4.85
FEN: 6n1/2K1p2Q/4k3/8/8/2B5/8/7B
Reprints: 11 Droit et Liberté 27/01/1950
Shakhmaty v SSSR 03/1954
51 Einführung in das Problemschach [Fabel] , p. 52, 1976
685 Beispiele zur Ideengeschichte des Schachproblems , p. 146, 1982
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-11-19 more...
Genre: 3#
Computer test: SCHRECKE: popeye 4.85
FEN: 6n1/2K1p2Q/4k3/8/8/2B5/8/7B
Reprints: 11 Droit et Liberté 27/01/1950
Shakhmaty v SSSR 03/1954
51 Einführung in das Problemschach [Fabel] , p. 52, 1976
685 Beispiele zur Ideengeschichte des Schachproblems , p. 146, 1982
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-11-19 more...
1... b6
Cook: 1. ... b5 2. Ta1/Ta1/Ta6/Ta5/Kd7/Kd8
1. ... b6 2. b4/Kd7/Kd8
Cook: 1. ... b5 2. Ta1/Ta1/Ta6/Ta5/Kd7/Kd8
1. ... b6 2. b4/Kd7/Kd8
A18d RA3
Henrik Juel: duals, e.g., 0... b5 1.Kd8,Kd7,Ta1 (2022-12-05)
A.Buchanan: If WTM, no solution, but since no legal last move for Black, we let Black start:
1...b5
2.Ra1/Ra2/Ra6 b4
3.Kd7/Kd8 Kb7 4.a8=Q#
2.Ra5 b4
3.Rc5 Kxa7 4.Ra5#
3.Kd7/Kd8 Kb7 4.a8=Q#
2.Kd7/Kd8 b4
3.Ra1/Ra2/Ra6/Ra5/Ra4 Kb7 4.a8=Q#
1...b6
2.b4 b5
3.Re3 Kxa7 4.Ra3#
3.Kd7/Kd8 Kb7 4.a8=Q#
2.Kd7/Kd8 b5 3.b4 Kb7 4.a8=Q#
The play is so savagely dualized, that one must marked it as cooked. Typo? (2023-12-04)
comment
Henrik Juel: duals, e.g., 0... b5 1.Kd8,Kd7,Ta1 (2022-12-05)
A.Buchanan: If WTM, no solution, but since no legal last move for Black, we let Black start:
1...b5
2.Ra1/Ra2/Ra6 b4
3.Kd7/Kd8 Kb7 4.a8=Q#
2.Ra5 b4
3.Rc5 Kxa7 4.Ra5#
3.Kd7/Kd8 Kb7 4.a8=Q#
2.Kd7/Kd8 b4
3.Ra1/Ra2/Ra6/Ra5/Ra4 Kb7 4.a8=Q#
1...b6
2.b4 b5
3.Re3 Kxa7 4.Ra3#
3.Kd7/Kd8 Kb7 4.a8=Q#
2.Kd7/Kd8 b5 3.b4 Kb7 4.a8=Q#
The play is so savagely dualized, that one must marked it as cooked. Typo? (2023-12-04)
comment
Keywords: Miniature Collection (0334424), No legal last move for Black, Minimal, Miniature
Genre: 3#, Retro
Computer test: HC- Popeye v4.87 & trivial retro argument
FEN: k1K5/Pp6/8/8/8/RP6/5B2/8
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2023-12-04 more...
Genre: 3#, Retro
Computer test: HC- Popeye v4.87 & trivial retro argument
FEN: k1K5/Pp6/8/8/8/RP6/5B2/8
Input: Zuncke/Bruder, 2010-09-11
Last update: A.Buchanan, 2023-12-04 more...
1. Db6 Lh8 2. Dh6 Lb2 3. Dh1+ Lc1 4. Dxc1#
1. ... Lg7 2. Dg1+ Kb2 3. Dxg7+ Kc1 4. Da1#
1. ... Lg7 2. Dg1+ Kb2 3. Dxg7+ Kc1 4. Da1#
G7DL
Henrik Juel: C+ Popeye 4.61, except for the dual 1... Le5 2.De3 Lb2 3.Dg1,De1+
the remaining first black defences permit #3 (2022-04-11)
comment
Henrik Juel: C+ Popeye 4.61, except for the dual 1... Le5 2.De3 Lb2 3.Dg1,De1+
the remaining first black defences permit #3 (2022-04-11)
comment
1. De4
ST-B3D E7bD3 B3f_
Henrik Juel: C+ Popeye 4.61 (2022-04-11)
Henrik Juel: Three of the four variations result in the same mate 2.g7# (2022-04-11)
comment
Henrik Juel: C+ Popeye 4.61 (2022-04-11)
Henrik Juel: Three of the four variations result in the same mate 2.g7# (2022-04-11)
comment
1. Kc4 g4 2. Lh1 g3 3. Dg2 Ka4 4. Da8#
Keywords: Miniature Collection (0076057)
Genre: n#
FEN: B7/8/8/3K2p1/1p6/kp6/5Q2/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
Genre: n#
FEN: B7/8/8/3K2p1/1p6/kp6/5Q2/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
1. Dc8! Ka5 2. b8=D Th1 3. Db4#
1. ... Tc1 2. b8=S+ Ka5 3. Da6#
1. ... Tc1 2. b8=S+ Ka5 3. Da6#
Keywords: Miniature Collection (0050741), Miniature, Promotion (wD), under-promotion (wS)
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1Q6/1P1K4/k2B4/8/8/1p6/8/r7
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-01-04 more...
Genre: 3#
Computer test: Juel: Popeye 4.61
FEN: 1Q6/1P1K4/k2B4/8/8/1p6/8/r7
Input: Felber, Volker, 2010-09-11
Last update: Dieter Berlin, 2023-01-04 more...
1. Db1 Kg5 (1... Ke6 2. Df5+ Kd6 3. Dd5#) (1... Kg7 2. Dg6+) 2. Df5+
Keywords: Miniature Collection (0334351)
Genre: 3#
FEN: 1Q1K4/4N3/5k2/8/8/7P/3P4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
Genre: 3#
FEN: 1Q1K4/4N3/5k2/8/8/7P/3P4/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Zuncke/Bruder, 2010-09-11 more...
1. Ld6? ... f5 2. Dc4, ... f6!;
1. Lf6? (Z) ... d5 2. Dg4, ... d6!;
1. Ke8! (ZUgzwang) ... f5/d5 2. ef6 e. p. /ed6 e. p.
1. Lf6? (Z) ... d5 2. Dg4, ... d6!;
1. Ke8! (ZUgzwang) ... f5/d5 2. ef6 e. p. /ed6 e. p.
B14f
vf: c1=a1, Ewgeni Balaschow, 23.02.1991, Problemist pribuschja
SCHRECKE: C+, popeye 4.87 (2023-08-18)
comment
vf: c1=a1, Ewgeni Balaschow, 23.02.1991, Problemist pribuschja
SCHRECKE: C+, popeye 4.87 (2023-08-18)
comment
Keywords: Miniature Collection (0017802)
Genre: 2#
FEN: 3K4/3pBp2/4k3/4P3/4Q3/8/8/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
Genre: 2#
FEN: 3K4/3pBp2/4k3/4P3/4Q3/8/8/8
Input: Felber, Volker, 2010-09-11
Last update: Felber, Volker, 2010-09-11 more...
1. a8=D+ Kxa8 2. Kc7+ Ka7 3. Da2+ Da6 4. Df2+ Ka8 5. Df8+ Dc8+ 6. Dxc8+ Ka7 7. Db7#
Keywords: Miniature Collection (0334503), Minimal, Miniature, Checking key, Promotion key (wD)
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 3K2Q1/Pk6/8/1q6/8/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-11-15 more...
Genre: n#
Computer test: SCHRECKE: Gustav 4.2e
FEN: 3K2Q1/Pk6/8/1q6/8/8/8/8
Input: Zuncke/Bruder, 2010-09-11
Last update: Dieter Berlin, 2023-11-15 more...
1. Ke2 Ka1 (1... Kc2 2. Dc6+ Kb1 3. Dh1+ Kc2 4. Dd1#) 2. Dh8 Lb1 3. Dh1 Ka2 4. Da8#
Keywords: Miniature Collection (0334467)
Genre: n#
FEN: Q7/8/8/8/8/1p2K3/bp1P4/1k6
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
Genre: n#
FEN: Q7/8/8/8/8/1p2K3/bp1P4/1k6
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
1. La8! droht 2. Dc6#
1. ... Kc3 2. Dc6#
1. ... Sf3 2. Dc1#
1. ... Kc3 2. Dc6#
1. ... Sf3 2. Dc1#
Keywords: Miniature Collection (0020821), Miniature, Aristocrat
Genre: 2#
Computer test: H. Juel: Popeye 4.61
FEN: 1R2n3/8/8/8/2k1B3/4K3/8/6nQ
Reprints: 45 Einiges über Schachaufgaben [Fabel] 1950
76 Volksstimme (Chemnitz) 02/04/1961
45 Einführung in das Problemschach [Fabel] , p. 49, 1976
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-11-20 more...
Genre: 2#
Computer test: H. Juel: Popeye 4.61
FEN: 1R2n3/8/8/8/2k1B3/4K3/8/6nQ
Reprints: 45 Einiges über Schachaufgaben [Fabel] 1950
76 Volksstimme (Chemnitz) 02/04/1961
45 Einführung in das Problemschach [Fabel] , p. 49, 1976
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-11-20 more...
* 1. ... Ka2 [a] 2. Da8# [A]
1. Kf5? Ka2 [a] 2. Da8# [A]
1. ... Sc1,Sc5,Sd2,Sa5 [c,d,e,d] 2. Dh8# [B]
1. ... Sd4+! [b]
1. De1? Ka2 [a] 2. Da5# [C]
1. ... Sc1,Sc5,Sd4,Sa5 [c,d,b,d] 2. Dc3# [D]
1. ... Sd2! [e]
1. Kf4? Ka2 [a] 2. Da8# [A]
1. ... Sc1,Sc5,Sd2,Sa5 [c,d,e,d] 2. Dh8# [B]
1. ... Sd4! [b]
1. Kd6? Ka2 [a] 2. Da8# [A]
1. ... Sc1,Sc5,Sd2,Sa5 [c,d,e,d] 2. Dh8# [B]
1. ... Sd4! [b]
1. Dc1? droht 2. Db2#
1. ... Sxc1! [c]
1. Dg1! Ka2 [a] 2. Da7# [E]
1. ... Sc1,Sc5,Sd2,Sd4,Sa5 [c,d,e,d] 2. Dd4# [F]
1. Kf5? Ka2 [a] 2. Da8# [A]
1. ... Sc1,Sc5,Sd2,Sa5 [c,d,e,d] 2. Dh8# [B]
1. ... Sd4+! [b]
1. De1? Ka2 [a] 2. Da5# [C]
1. ... Sc1,Sc5,Sd4,Sa5 [c,d,b,d] 2. Dc3# [D]
1. ... Sd2! [e]
1. Kf4? Ka2 [a] 2. Da8# [A]
1. ... Sc1,Sc5,Sd2,Sa5 [c,d,e,d] 2. Dh8# [B]
1. ... Sd4! [b]
1. Kd6? Ka2 [a] 2. Da8# [A]
1. ... Sc1,Sc5,Sd2,Sa5 [c,d,e,d] 2. Dh8# [B]
1. ... Sd4! [b]
1. Dc1? droht 2. Db2#
1. ... Sxc1! [c]
1. Dg1! Ka2 [a] 2. Da7# [E]
1. ... Sc1,Sc5,Sd2,Sd4,Sa5 [c,d,e,d] 2. Dd4# [F]
FE-S1D2 C5s m
vf: N. Korobkow, 02.03.1979, Prisyw;
a1<>h1, ohne jegliche Quellenangaben
Henrik Juel: C+ Popeye 4.61 (2021-10-25)
comment
vf: N. Korobkow, 02.03.1979, Prisyw;
a1<>h1, ohne jegliche Quellenangaben
Henrik Juel: C+ Popeye 4.61 (2021-10-25)
comment
1. Tg7! droht 2. Tb8#
1. ... Lb4 2. Sb6#
1. ... Ld6 2. Sxd6#
1. ... Lb4 2. Sb6#
1. ... Ld6 2. Sxd6#
Keywords: Miniature Collection (0022324), Aristocrat, Minimal (b), Miniature, Flight taking
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 2k1K3/4b3/8/8/2N5/6R1/7B/1R6
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-11-19 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.89
FEN: 2k1K3/4b3/8/8/2N5/6R1/7B/1R6
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-11-19 more...
1. Df1
m02 3m
Henrik Juel: 1.Df1 g3/Kg3 2.Df5/Lf4+
but an unfortunate dual 1... Kh5 2.Df4,Df6 (2022-04-11)
comment
Henrik Juel: 1.Df1 g3/Kg3 2.Df5/Lf4+
but an unfortunate dual 1... Kh5 2.Df4,Df6 (2022-04-11)
comment
Keywords: Miniature Collection (0334396)
Genre: 3#
FEN: 4K3/8/8/1Q6/4p1pk/4B3/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-04-10 more...
Genre: 3#
FEN: 4K3/8/8/1Q6/4p1pk/4B3/8/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-04-10 more...
1. Th8
C93
SCHRECKE: C+, popeye 4.87
1. Th8! (Zugzwang)
1. ... Sg2,Sf3 2. Le4 Kxh2 3. Lf4#
1. ... Sg6 2. Lxg6 Kxh2 3. Lf4#
1. ... Sf5 2. Lxf5 Kxh2 3. Lf4#
1. ... Kxh2 2. Lf4+ Kh1 3. Le4#
2. ... Kh3 3. Lf5# (2023-08-18)
comment
SCHRECKE: C+, popeye 4.87
1. Th8! (Zugzwang)
1. ... Sg2,Sf3 2. Le4 Kxh2 3. Lf4#
1. ... Sg6 2. Lxg6 Kxh2 3. Lf4#
1. ... Sf5 2. Lxf5 Kxh2 3. Lf4#
1. ... Kxh2 2. Lf4+ Kh1 3. Le4#
2. ... Kh3 3. Lf5# (2023-08-18)
comment
Keywords: Miniature Collection (0054904)
Genre: 3#
FEN: 6R1/7B/7B/8/7n/8/7P/5K1k
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2010-09-12 more...
Genre: 3#
FEN: 6R1/7B/7B/8/7n/8/7P/5K1k
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2010-09-12 more...
1. Ke2 Kg5 (1... g6 2. Th6) (1... g5 2. Te4) 2. De6 g6 3. De5#
Keywords: Miniature Collection (0334437)
Genre: 3#
FEN: 8/6p1/Q7/5k2/7R/6B1/8/5K2
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
Genre: 3#
FEN: 8/6p1/Q7/5k2/7R/6B1/8/5K2
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
1. Dh6! Sxh6 2. Sf3#
1. ... Kh3 2. Dxh5#
1. ... Sd4 2. Sg6#
1. ... Se7 2. Sf3#
1. ... Kh3 2. Dxh5#
1. ... Sd4 2. Sg6#
1. ... Se7 2. Sf3#
Keywords: Miniature Collection (0023839)
Genre: 2#
FEN: 2B5/8/8/4Nn1n/7k/8/5K2/2Q5
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2023-05-16 more...
Genre: 2#
FEN: 2B5/8/8/4Nn1n/7k/8/5K2/2Q5
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2023-05-16 more...
1. Da3
CC3
SCHRECKE: C+, popeye 4.85
1.Da3! (2.De3#)
1. ... Lc3 2.Dd6#
1. ... Sc3 2.Da7#
1. ... c3 2.Db4# (2020-11-24)
comment
SCHRECKE: C+, popeye 4.85
1.Da3! (2.De3#)
1. ... Lc3 2.Dd6#
1. ... Sc3 2.Da7#
1. ... c3 2.Db4# (2020-11-24)
comment
Keywords: Miniature Collection (0024615)
Genre: 2#
FEN: 8/8/8/8/nQpkBK2/8/8/b7
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2010-09-12 more...
Genre: 2#
FEN: 8/8/8/8/nQpkBK2/8/8/b7
Input: Felber, Volker, 2010-09-12
Last update: Felber, Volker, 2010-09-12 more...
1. Lc2
T12c mm
vf: a1<>h1, Alena+Wladimir Koschakin, 10.08.2000, Kudesnik
SCHRECKE: C+, popeye 4.87
1. Lc2! (Zugzwang)
1. ... d:c2 2.Kf7 K:h7 3.Th1#
1. ... d2 2.Tg1 d1D 3.Tg8#
1. ... K:h7 2.Lb3 ~ 3.Th1# (2022-03-30)
comment
vf: a1<>h1, Alena+Wladimir Koschakin, 10.08.2000, Kudesnik
SCHRECKE: C+, popeye 4.87
1. Lc2! (Zugzwang)
1. ... d:c2 2.Kf7 K:h7 3.Th1#
1. ... d2 2.Tg1 d1D 3.Tg8#
1. ... K:h7 2.Lb3 ~ 3.Th1# (2022-03-30)
comment
Keywords: Miniature Collection (0056633)
Genre: 3#
FEN: 7k/7P/5K2/8/8/2pp4/8/2RB4
Input: Felber, Volker, 2010-09-12
Last update: Roland Ott, 2022-03-30 more...
Genre: 3#
FEN: 7k/7P/5K2/8/8/2pp4/8/2RB4
Input: Felber, Volker, 2010-09-12
Last update: Roland Ott, 2022-03-30 more...
1. Ta8 Kxh7 2. Txa1 Kg8 3. Th1 Kf8 4. Th8#
H42 mm
vf: a1<>h1, Ernst Komoraus, 23.05.1965, Schach-Echo
SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-10-01)
comment
vf: a1<>h1, Ernst Komoraus, 23.05.1965, Schach-Echo
SCHRECKE: C+, Gustav 4.2b, Brute Force (2022-10-01)
comment
1. Dc5! droht 2. Df8#
1. ... Txf5+ 2. Dxf5#
1. ... Td4 2. Sfe7#
1. ... Te4 2. Sd6#
1. ... Txf5+ 2. Dxf5#
1. ... Td4 2. Sfe7#
1. ... Te4 2. Sd6#
Keywords: Miniature Collection (0025415), Aristocrat, Minimal, Miniature, Unpinning
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2k5/R7/2N2K2/5N2/5r2/8/5Q2/8
Reprints: 66 Schachminiaturen Zweizüger , p. 25, 1965
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-01-13 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: 2k5/R7/2N2K2/5N2/5r2/8/5Q2/8
Reprints: 66 Schachminiaturen Zweizüger , p. 25, 1965
Input: Felber, Volker, 2010-09-12
Last update: Dieter Berlin, 2023-01-13 more...
1. b8=T Lxf2+ 2. Kxf2 Kh2 3. Th8#
1. ... Lh2+ 2. Txh2+ Kg1 3. Tb1#
1. ... Lh2+ 2. Txh2+ Kg1 3. Tb1#
Keywords: Miniature Collection (0334410), Minimal, Miniature, Promotion key (T)
Genre: 3#
FEN: 8/1P6/8/8/8/6K1/5R2/6bk
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-06-01 more...
Genre: 3#
FEN: 8/1P6/8/8/8/6K1/5R2/6bk
Input: Zuncke/Bruder, 2010-09-12
Last update: Rainer Staudte, 2022-06-01 more...
Anton Baumann: gemäss Diagramm unlösbar.
Ohne sBd7 ist die Aufgabe korrekt:
1.d4 c6 2.Kh6 c5 3.d5 c4 4.d6 c3 5.Lg6 Kg8 nebst 7.d8=D,T# (2024-01-24)
comment
Ohne sBd7 ist die Aufgabe korrekt:
1.d4 c6 2.Kh6 c5 3.d5 c4 4.d6 c3 5.Lg6 Kg8 nebst 7.d8=D,T# (2024-01-24)
comment
Keywords: Miniature Collection (0334487), no solution
Genre: n#
FEN: 7k/2pp3B/6K1/8/8/8/2PP4/8
Input: Zuncke/Bruder, 2010-09-12
Last update: SBD, 2013-07-15 more...
Genre: n#
FEN: 7k/2pp3B/6K1/8/8/8/2PP4/8
Input: Zuncke/Bruder, 2010-09-12
Last update: SBD, 2013-07-15 more...
79 - P1169005
Aleksandr Maksimovskikh
12 Shakhmaty v SSSR 02/1966
5. Ehrende Erwähnung
(4+1)
#3
b) sKa1 c) sKh2 d) sKc6
Aleksandr Maksimovskikh
12 Shakhmaty v SSSR 02/1966
5. Ehrende Erwähnung
(4+1)
#3
b) sKa1 c) sKh2 d) sKc6
a) 1. a4 Ka7 2. Dc7 Ka6 3. b8=S#
b) 1. b8=L Kb1,Kb2 2. Db3+ Ka1 3. Le5#
2. ... Kc1 3. Lf4#
c) 1. Dg6 Kh1 2. b8=T Kh2 3. Th8#
d) 1. b8=D Kc5 2. Dff4 Kc6 3. Dfd6#
2. ... Kd5 3. Dbd6#
b) 1. b8=L Kb1,Kb2 2. Db3+ Ka1 3. Le5#
2. ... Kc1 3. Lf4#
c) 1. Dg6 Kh1 2. b8=T Kh2 3. Th8#
d) 1. b8=D Kc5 2. Dff4 Kc6 3. Dfd6#
2. ... Kd5 3. Dbd6#
BUS12 BUL30 BUT22 AL
Henrik Juel: a,b,d are C+ Popeye 4.61
c is damaged by the dual 1.Dg6 Kh3 2.b8=DT (2022-04-11)
comment
Henrik Juel: a,b,d are C+ Popeye 4.61
c is damaged by the dual 1.Dg6 Kh3 2.b8=DT (2022-04-11)
comment
Keywords: Miniature Collection (0293275), Miniature, Allumwandlung
Genre: 3#
FEN: 1k6/1P3QK1/8/8/8/8/P7/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-04-10 more...
Genre: 3#
FEN: 1k6/1P3QK1/8/8/8/8/P7/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-04-10 more...
1. Lg4 h6 (1... h5 2. Kh7 hxg4 3. Kh6 g3 4. hxg3#) 2. Kf7 h5 3. Kf6 hxg4 4. Th7#
Keywords: Miniature Collection (0334506)
Genre: n#
FEN: 6K1/6Rp/8/8/7k/5B1p/7P/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
Genre: n#
FEN: 6K1/6Rp/8/8/7k/5B1p/7P/8
Input: Zuncke/Bruder, 2010-09-12
Last update: Zuncke/Bruder, 2010-09-12 more...
1. Lg2? d5 2. Lh1 d4 3. Td5 d3 4. Kg2 Ke4 5. Kg3#
1. ... d6!
1. Ld5! d6 2. Lg2 d5 3. Lh1 d4 4. Td5 d3 5. Kg2 Ke4 6. Kg3#
1. ... d6!
1. Ld5! d6 2. Lg2 d5 3. Lh1 d4 4. Td5 d3 5. Kg2 Ke4 6. Kg3#
Duplicate Diagram: P1398988
Keywords: Miniature Collection (0086115), anticipated (P1398988), Hesitation Indian, Minimal, Miniature
Genre: n#
FEN: B7/3p4/8/7R/5k2/7P/3P3K/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-02-10 more...
Genre: n#
FEN: B7/3p4/8/7R/5k2/7P/3P3K/8
Input: Felber, Volker, 2010-09-12
Last update: Rainer Staudte, 2022-02-10 more...
1. Dd4 d6 2. Da1+ Tf1 3. Da7+ Tf2 4. Dd4 d5 5. Dd1+ Tf1 6. De2 Tf2 7. De1+ Tf1 8. De3+ Tf2 9. Dd4 f4 10. Dd1+ Tf1 11. De2 Tf2 12. Dg4+ Kh1 13. Dd1+ Tf1 14. Dxf1#
Die Originalität ist durch die P1182323 stark beeinträchtigt.
Eleganter ist die spätere P1237684.
Die Originalität ist durch die P1182323 stark beeinträchtigt.
Eleganter ist die spätere P1237684.
F1DT
Frank Müller: Ich hatte A. Moldawski als Autor notiert. (2015-03-05)
Anton Baumann: C+ Gustav 4.1d (2021-08-30)
comment
Frank Müller: Ich hatte A. Moldawski als Autor notiert. (2015-03-05)
Anton Baumann: C+ Gustav 4.1d (2021-08-30)
comment
Keywords: Miniature Collection (0334474), Minimal, Alleinunterhalter
Genre: n#
FEN: 8/3p4/8/2Q2p2/7p/7K/5r2/6k1
Input: Zuncke/Bruder, 2010-09-12
Last update: Frank Müller, 2012-04-30 more...
Genre: n#
FEN: 8/3p4/8/2Q2p2/7p/7K/5r2/6k1
Input: Zuncke/Bruder, 2010-09-12
Last update: Frank Müller, 2012-04-30 more...
1. Kh8 droht 2. Tg4
1. ... Lg2 2. Dg3+ hxg3 3. Th7#
1. ... Le2 2. Dh1
1. ... Lh5 2. Df1+ Kxh2 3. Dg2#
1. ... Lg2 2. Dg3+ hxg3 3. Th7#
1. ... Le2 2. Dh1
1. ... Lh5 2. Df1+ Kxh2 3. Dg2#
84 - P1183992
Luigi Ceriani
La Genesi delle Posizioni 1961
(13+12)
Were any diagrams repeated during the game?
Luigi Ceriani
La Genesi delle Posizioni 1961
(13+12)
Were any diagrams repeated during the game?
Nikolai Beluhov: This problem was published as a part of the Shakhmaty v SSSR 1977 New Year solving tourney. It is probably a version of P0002948 (Luigi Ceriani, La Genesi delle Posizioni, 1961, N49), even though I think that the CPDB diagram for the last problem must contain some typo.
Throughout the game, two different positions had to be repeated two times each (with the other side on the move) in order for the position to arise. Compare P0005418 (S. Volobuev, Thèmes-64, 1986) as well as the threefold implementation in P1183971 (D. Baibikov, Schachmatnaja komposizija, 2010). (2011-01-02)
Hans-Jürgen Manthey: R: 1. ... g2xSf1S+ (2. La2-b1 Kc2-d1 3. Te1-e2 Tb1-a1 4. Se2-g1 Ta1-b1 5. Kg1-h2 Tb1-a1 6. Sh2-f1 Ta1-b1 7. Td1-e1 Tb1-a1 8. Tf1-d1 Ta1-b1 9. Te1-f1 Tb1-a1 10. Sf1-h2 Ta1-b1 11. Kh2-g1 Tb1-a1 12. Sg1-e2 Ta1-b1 13. Te2-e1 Kd1-c2 14. Lb1-a2 Ta5-a1 1.mal Zugwechsel) 15. La2-b1 Th5-a5 16. Lb1-a2 Th6-h5 17. La2-b1 Th5xh6 18. Lb1-a2 Ta5-h5 19. La2-b1 Ta3-a5 20. Lb1-a2 Ta1-a3 (21. La2-b1 Kc2-d1 22. Te1-e2 Tb1-a1 23. Se2-g1 Ta1-b1 24. Kg1-h2 Tb1-a1 25. Sh2-f1 Ta1-b1 26. Td1-e1 Tb1-a1 27. Tf1-d1 Ta1-b1 28. Te1-f1 Tb1-a1 29. Sf1-h2 Ta1-b1 30. Kh2-g1 Tb1-a1 31. Sg1-e2 Ta1-b1 32. Te2-e1 Kd1-c2 33. Lb1-a2 a2-a1=T 2.mal Zugwechsel) 34. h5-h6 a3-a2 35. a2xTb3 Tb8-b3 36. h4-h5 b3-b2 37. Lb2-c1 a4-a3 38. La3-b2 Th8-b8 39. Lc5-a3 Kc1-d1 40. Lb6-c5 Kb2-c1 41. Te1-e2 Ka3-b2 42. Lc2-b1 a5-a4 43. Ta1-e1 Ka4-a3 44. Lc5-b6 Kb5-a4 45. La3-c5 Kc6-b5 46. Lc1-a3 a7-a5 47. b2xSc3 Se4-c3 48. c3xSd4 Kd7-c6 49. Ld1-c2 Sc6-d4 50. c2-c3 Ld4-e3 51. Se2-g1 Lg7-d4 52. Sc3-e2 Ke8-d7 53. Sb1-c3 Sf6-e4 54. Te3-f3 Sg8-f6 55. Te1-e3 Te3-g3 56. Kg1-h2 Te5-e3 57. Sh2-f1 f3xDg2 58. e3xDf4 Td5-e5 59. Le2-d1 Td8-d5 60. Tf1-e1 Dd6-f4 61. 0-0 f4-f3 62. Df3-g2 Ta8-d8 63. Lf1-e2 Dd8-d6 64. Dd1-f3 Sb8-c6 65. Sf3-h2 Lf8-g7 66. Sg1-f3 g7-g6 67. g2-g4 Lc8-h3 68. e2-e3 f5-f4 69. Th3-h1 b4-b3 70. Th1-h3 b5-b4 71. Th3-h1 d4-d3 72. Th1-h3 d5-d4 73. Th3-h1 b7-b5 74. Th1-h3 d7-d5 75. h3-h4 f7-f5 76. h2-h3 (2021-02-27)
comment
Throughout the game, two different positions had to be repeated two times each (with the other side on the move) in order for the position to arise. Compare P0005418 (S. Volobuev, Thèmes-64, 1986) as well as the threefold implementation in P1183971 (D. Baibikov, Schachmatnaja komposizija, 2010). (2011-01-02)
Hans-Jürgen Manthey: R: 1. ... g2xSf1S+ (2. La2-b1 Kc2-d1 3. Te1-e2 Tb1-a1 4. Se2-g1 Ta1-b1 5. Kg1-h2 Tb1-a1 6. Sh2-f1 Ta1-b1 7. Td1-e1 Tb1-a1 8. Tf1-d1 Ta1-b1 9. Te1-f1 Tb1-a1 10. Sf1-h2 Ta1-b1 11. Kh2-g1 Tb1-a1 12. Sg1-e2 Ta1-b1 13. Te2-e1 Kd1-c2 14. Lb1-a2 Ta5-a1 1.mal Zugwechsel) 15. La2-b1 Th5-a5 16. Lb1-a2 Th6-h5 17. La2-b1 Th5xh6 18. Lb1-a2 Ta5-h5 19. La2-b1 Ta3-a5 20. Lb1-a2 Ta1-a3 (21. La2-b1 Kc2-d1 22. Te1-e2 Tb1-a1 23. Se2-g1 Ta1-b1 24. Kg1-h2 Tb1-a1 25. Sh2-f1 Ta1-b1 26. Td1-e1 Tb1-a1 27. Tf1-d1 Ta1-b1 28. Te1-f1 Tb1-a1 29. Sf1-h2 Ta1-b1 30. Kh2-g1 Tb1-a1 31. Sg1-e2 Ta1-b1 32. Te2-e1 Kd1-c2 33. Lb1-a2 a2-a1=T 2.mal Zugwechsel) 34. h5-h6 a3-a2 35. a2xTb3 Tb8-b3 36. h4-h5 b3-b2 37. Lb2-c1 a4-a3 38. La3-b2 Th8-b8 39. Lc5-a3 Kc1-d1 40. Lb6-c5 Kb2-c1 41. Te1-e2 Ka3-b2 42. Lc2-b1 a5-a4 43. Ta1-e1 Ka4-a3 44. Lc5-b6 Kb5-a4 45. La3-c5 Kc6-b5 46. Lc1-a3 a7-a5 47. b2xSc3 Se4-c3 48. c3xSd4 Kd7-c6 49. Ld1-c2 Sc6-d4 50. c2-c3 Ld4-e3 51. Se2-g1 Lg7-d4 52. Sc3-e2 Ke8-d7 53. Sb1-c3 Sf6-e4 54. Te3-f3 Sg8-f6 55. Te1-e3 Te3-g3 56. Kg1-h2 Te5-e3 57. Sh2-f1 f3xDg2 58. e3xDf4 Td5-e5 59. Le2-d1 Td8-d5 60. Tf1-e1 Dd6-f4 61. 0-0 f4-f3 62. Df3-g2 Ta8-d8 63. Lf1-e2 Dd8-d6 64. Dd1-f3 Sb8-c6 65. Sf3-h2 Lf8-g7 66. Sg1-f3 g7-g6 67. g2-g4 Lc8-h3 68. e2-e3 f5-f4 69. Th3-h1 b4-b3 70. Th1-h3 b5-b4 71. Th3-h1 d4-d3 72. Th1-h3 d5-d4 73. Th3-h1 b7-b5 74. Th1-h3 d7-d5 75. h3-h4 f7-f5 76. h2-h3 (2021-02-27)
comment
Keywords: Tempo Loss
Genre: Retro
FEN: 8/2p1p2p/6p1/8/3P1PP1/1PPpbRrb/1p1PRP1K/rBBk1nN1
Reprints: 4 Shakhmaty v SSSR 12 12/1977
32 Shakhmatnaya Kompozitsiya 15, p. 56, 1996
Input: Nikolai Beluhov, 2011-01-02
Last update: A.Buchanan, 2021-02-27 more...
Genre: Retro
FEN: 8/2p1p2p/6p1/8/3P1PP1/1PPpbRrb/1p1PRP1K/rBBk1nN1
Reprints: 4 Shakhmaty v SSSR 12 12/1977
32 Shakhmatnaya Kompozitsiya 15, p. 56, 1996
Input: Nikolai Beluhov, 2011-01-02
Last update: A.Buchanan, 2021-02-27 more...
1. Tg1! Tg3 2. hxg3+ Kg4 3. gxh4+ Kh5 4. hxg5+ Kg6 5. gxh6+ Kh7 6. hxg7+ Kg8 7. gxh8=S#
Keywords: Excelsior, under-promotion in mating move (S)
Genre: n#
FEN: 7b/Kp4q1/1p2bp1n/p1B2pp1/7p/5r1k/6RP/7Q
Reprints: 1145 Beispiele zur Ideengeschichte des Schachproblems , p. 233, 1982
2 Sahovska kompozicija 01/1993
Mat Plus (11) 1996
K212 Problemkiste (123) 06/1999
Input: Erich Bartel, 2011-08-24
Last update: Dieter Berlin, 2022-12-15 more...
Genre: n#
FEN: 7b/Kp4q1/1p2bp1n/p1B2pp1/7p/5r1k/6RP/7Q
Reprints: 1145 Beispiele zur Ideengeschichte des Schachproblems , p. 233, 1982
2 Sahovska kompozicija 01/1993
Mat Plus (11) 1996
K212 Problemkiste (123) 06/1999
Input: Erich Bartel, 2011-08-24
Last update: Dieter Berlin, 2022-12-15 more...
1. Db6? droht 2. Dd4
1. Db6? g5!
1. Tf6! gxf6 2. Db6 f5 3. Sc2#
1. Db6? g5!
1. Tf6! gxf6 2. Db6 f5 3. Sc2#
Genre: 3#
FEN: 4n1nq/1Q1p2pb/R7/p2p4/p7/N3P2P/6p1/kB4K1
Reprints: 1918 Deutsche Schachblätter 7, p. 167, 07/1976
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2021-06-27 more...
1. Sd6! droht 2. Sd3#
1. ... Sb5+,Scd5 2. Sf7#
1. ... Se6+ 2. Sd7#
1. ... Ld5 2. f4#
1. ... Kd5 2. Sf7#
1. ... d3 2. Sxc4#
1. ... Sb5+,Scd5 2. Sf7#
1. ... Se6+ 2. Sd7#
1. ... Ld5 2. f4#
1. ... Kd5 2. Sf7#
1. ... d3 2. Sxc4#
Keywords: Provoked check, Cross check, double-check mate, Pawn mate, Blocknutzung, discovered checkmate
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: nBBRNR2/r1n4K/p1p3p1/Q1N1k1P1/2pp4/5b2/4qP2/8
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-02-14 more...
Genre: 2#
Computer test: SCHRECKE: popeye 4.87
FEN: nBBRNR2/r1n4K/p1p3p1/Q1N1k1P1/2pp4/5b2/4qP2/8
Input: Felber, Volker, 2011-11-08
Last update: Dieter Berlin, 2023-02-14 more...
1. Sf3! Zugzwang
1. ... Kg3 2. Kf1 Kxf3 3. Th3#
1. ... Kxf3 2. Tg1 Kxe3 3. Tg3#
1. ... Kxh1 2. Ta2
1. ... Kg3 2. Kf1 Kxf3 3. Th3#
1. ... Kxf3 2. Tg1 Kxe3 3. Tg3#
1. ... Kxh1 2. Ta2
Genre: 3#
FEN: 8/8/8/p5p1/R5P1/4P3/6k1/4K1NR
Reprints: 184 Volksstimme (Chemnitz) 16/06/1962
Input: Felber, Volker, 2014-10-20
Last update: Rainer Staudte, 2021-06-08 more...
1. Sd4+ Kd7 2. Dh7+ Kc8 3. Dg8+ Kb7 4. Dd5+ Kc7 5. Df7+ Kb6 6. Db3+ Kc7 7. Se6+ Kc8 8. Dc4+ Kd7 9. Sc5+ Ke7 10. De6+
5. ... Kc8 6. De8+ Kc7 7. Se6+ Kb7 8. Sc5+ Ka8 9. Dc6+ Ka7 10. Da6#
4. ... Kc8 5. De6+ Kb7 6. Dc6+ Ka7 7. Sb5+
4. ... Ka6 5. Dc4+ Kb6 6. Db4+
3. ... Kc7 4. Df7+ Kb6 5. Db3+
1. ... Kf6 2. Dh6+ Kf7 3. Dh7+ Kf6 4. Df5+ Kg7 5. Se6+ Kh6 6. Dg5+ Kh7 7. Dg7#
5. ... Kc8 6. De8+ Kc7 7. Se6+ Kb7 8. Sc5+ Ka8 9. Dc6+ Ka7 10. Da6#
4. ... Kc8 5. De6+ Kb7 6. Dc6+ Ka7 7. Sb5+
4. ... Ka6 5. Dc4+ Kb6 6. Db4+
3. ... Kc7 4. Df7+ Kb6 5. Db3+
1. ... Kf6 2. Dh6+ Kf7 3. Dh7+ Kf6 4. Df5+ Kg7 5. Se6+ Kh6 6. Dg5+ Kh7 7. Dg7#
Genre: Studies
FEN: 1q6/8/4k3/8/8/8/2N5/K6Q
Input: Rainer Staudte, 2015-01-08
Last update: Rainer Staudte, 2015-01-08 more...
1. Kf5? Ke3 2. Sg4+ Kd4
1. Kf4! Kd2 2. Ke4 Dd4+ 3. Kf5 Ke3 4. Ke6 Ke4 5. Sc6 Dxc4+ 6. Kd6 Dd5+ 7. Kc7 c4 8. d8=D Dxd8+ 9. Kxd8 c3 10. Sb4 remis
7. ... Df7 8. Kd6!
8. Kc8? Kd5 9. d8=D+ Kxc6
1. Kf4! Kd2 2. Ke4 Dd4+ 3. Kf5 Ke3 4. Ke6 Ke4 5. Sc6 Dxc4+ 6. Kd6 Dd5+ 7. Kc7 c4 8. d8=D Dxd8+ 9. Kxd8 c3 10. Sb4 remis
7. ... Df7 8. Kd6!
8. Kc8? Kd5 9. d8=D+ Kxc6
Anton Baumann: unlösbar, d.h. Weiss verliert:
1.Kf4 Kf2! 2.Ke4 Kg3 3.Kf5 De7 4.Ke4 Dg5 5.Kd5 Kf4 6.Ke6 Dxe5 und Schwarz gewinnt nach Nalimov (2022-05-09)
comment
1.Kf4 Kf2! 2.Ke4 Kg3 3.Kf5 De7 4.Ke4 Dg5 5.Kd5 Kf4 6.Ke6 Dxe5 und Schwarz gewinnt nach Nalimov (2022-05-09)
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Genre: Studies
FEN: 8/3P4/3q4/2p1N3/2P1K3/8/4k3/8
Input: Rainer Staudte, 2015-05-02
Last update: Rainer Staudte, 2015-05-02 more...
1. Lc6+ Kf8 2. Tf3 Te1 3. Se2! Txe2 4. Td3! d1=D! 5. Txd1 Td2 6. Te1! Le2 7. Tg1! Lg4 8. Te1! Te2 9. Td1 Ld2 10. Ta1! La5 11. Td1 Td2 12. Te1 Le2 13. Tg1 remis
3. ... Lxe2 4. Te3!
Judge Al.P. Kuznetsov
Award 08/1976
In Version 2022 wurde der schwarze unnötige Bauer f3 entfernt (Rusinek).
Die Lösung bleibt unverändert.
3. ... Lxe2 4. Te3!
Judge Al.P. Kuznetsov
Award 08/1976
In Version 2022 wurde der schwarze unnötige Bauer f3 entfernt (Rusinek).
Die Lösung bleibt unverändert.
Polnisches Championat 1974-1976 1. Platz (Original)
Details zur Lösung hier
HBae: Laut YACPDB 276801 muss der sBh6 auf h5 stehen (sonst ginge 8. Txg4 Tg2 9. Te4! mit Gewinn) (2022-07-29)
comment
Details zur Lösung hier
HBae: Laut YACPDB 276801 muss der sBh6 auf h5 stehen (sonst ginge 8. Txg4 Tg2 9. Te4! mit Gewinn) (2022-07-29)
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Keywords: Nowotny
Genre: Studies
FEN: 4k2K/5p2/1p3B1p/b1p2P2/4B3/1p5p/3p1R2/3r1bNn
Reprints: 2969 EG 48 07/1977
5087 Sachove umeni 05/1978
800orig FIDE Album 1974-1976 1980
1613 Problemista 163-165 01-02/1982
Input: Rainer Staudte, 2015-08-23
Last update: Marcin Banaszek, 2022-07-31 more...
Genre: Studies
FEN: 4k2K/5p2/1p3B1p/b1p2P2/4B3/1p5p/3p1R2/3r1bNn
Reprints: 2969 EG 48 07/1977
5087 Sachove umeni 05/1978
800orig FIDE Album 1974-1976 1980
1613 Problemista 163-165 01-02/1982
Input: Rainer Staudte, 2015-08-23
Last update: Marcin Banaszek, 2022-07-31 more...
92 - P1325919
Vitaly S. Kovalenko
Leopold A. Mitrofanow
Shakhmaty v SSSR 1982
Platow-Memorial
Lob
(4+4)
Remis
Vitaly S. Kovalenko
Leopold A. Mitrofanow
Shakhmaty v SSSR 1982
Platow-Memorial
Lob
(4+4)
Remis
1. Tg4+ Sg6 2. Txg6+ Kf8 3. Th6 Kg8 4. Sg5 c1=D 5. Tg6+ Kf8 6. Se6+ Ke8 7. Tg8+ Kd7 8. c6+ Dxc6 9. Td8#
8. ... Kxc6 9. Tc8+
8. ... Kxc6 9. Tc8+
Keywords: Block (d)
Genre: Studies
FEN: 6kn/8/5K2/2P5/7R/7N/2p4p/8
Input: Rainer Staudte, 2016-09-29
Last update: Rainer Staudte, 2016-10-03 more...
Genre: Studies
FEN: 6kn/8/5K2/2P5/7R/7N/2p4p/8
Input: Rainer Staudte, 2016-09-29
Last update: Rainer Staudte, 2016-10-03 more...
Lösung z.T. laut yacpdb:
1. a7 Lf4+ 2. Kd7 Lg4+ 3. Kd8! Lxf3 4. exf3 h1=D 5. a8=D Dh8+ 6. Kd7 Dh3+ 7. Kd8! De6 8. Dc6 Dxc6 patt
7. Kc6? Dxf3+ 8. Kd7 Dh3+ 9. Kc6 Dh1+ 10. Kd7 Dh7+ 11. Kc6 De4+ 12. Kd7 De6+ 13. Kd8 Dd6+ nebst 14. ... Dc7,De7#
6. ... Dxa8? patt
3. Ke8 Lxf3 4. exf3 h1=T!
3. Kc6? Lxf3+ 4. exf3 h1=L!
4. ... h1=D 5. a8=D Dxf3+ 6. Kd7 Dh3+ Schwarz gewinnt
In seinem Artikel "Etjudy, kotoryje ne reschajutsja" in 'Shakhmaty v SSSR' meint V.A. Chechover, einen Defekt in der Studie entdeckt zu haben: 3. Kc6? scheitert nicht nur an der vom Autor geplanten Unterverwandlung 3. ... Lxf3+ 4. exf3 h1=L!, sondern trotz der Pattgefahr auch an 4. ... h1=D 5. a8=D Dxf3+ 6. Kd7 und nun nicht 6. ... Dxa8?? patt, sondern stärker 6. ... Dh3+! 7. Kc6 Dh1+ 8. Kd7 Dh7+! 9. Kc6 De4+ 10. Kd7 De6+ +-
1. a7 Lf4+ 2. Kd7 Lg4+ 3. Kd8! Lxf3 4. exf3 h1=D 5. a8=D Dh8+ 6. Kd7 Dh3+ 7. Kd8! De6 8. Dc6 Dxc6 patt
7. Kc6? Dxf3+ 8. Kd7 Dh3+ 9. Kc6 Dh1+ 10. Kd7 Dh7+ 11. Kc6 De4+ 12. Kd7 De6+ 13. Kd8 Dd6+ nebst 14. ... Dc7,De7#
6. ... Dxa8? patt
3. Ke8 Lxf3 4. exf3 h1=T!
3. Kc6? Lxf3+ 4. exf3 h1=L!
4. ... h1=D 5. a8=D Dxf3+ 6. Kd7 Dh3+ Schwarz gewinnt
In seinem Artikel "Etjudy, kotoryje ne reschajutsja" in 'Shakhmaty v SSSR' meint V.A. Chechover, einen Defekt in der Studie entdeckt zu haben: 3. Kc6? scheitert nicht nur an der vom Autor geplanten Unterverwandlung 3. ... Lxf3+ 4. exf3 h1=L!, sondern trotz der Pattgefahr auch an 4. ... h1=D 5. a8=D Dxf3+ 6. Kd7 und nun nicht 6. ... Dxa8?? patt, sondern stärker 6. ... Dh3+! 7. Kc6 Dh1+ 8. Kd7 Dh7+! 9. Kc6 De4+ 10. Kd7 De6+ +-
Originalquelle laut YACPDB (id=280730): "Eskilstuna Kuriren 1917"
Anton Baumann: Lösung laut yacpdb: 1.a7 Lf4+ 2.Kd7 Lg4+ 3.Kd8! Lxf3 4.exf3 h1=D 5.a8=D Dh8+ 6.Kd7 Dh3+ (Dxa8? patt) 7.Kd8! De6 8.Dc6 Dxc6 patt
7.Kc6? Dxf3+ Kd7 Dh3+ 9.Kc6 Dh1+ 10.Kd7 Dh7+ 11.Kc6 De4+ 12.Kd7 De6+ 13.Kd8 Dd6+ nebst 14. - Dc7,De7#
3.Kc6? Lxf3+ 4.exf3 h1=D 5.a8=D Dxf3+ 6.Kd7 Dh3+ Schwarz gewinnt (2023-03-14)
comment
Anton Baumann: Lösung laut yacpdb: 1.a7 Lf4+ 2.Kd7 Lg4+ 3.Kd8! Lxf3 4.exf3 h1=D 5.a8=D Dh8+ 6.Kd7 Dh3+ (Dxa8? patt) 7.Kd8! De6 8.Dc6 Dxc6 patt
7.Kc6? Dxf3+ Kd7 Dh3+ 9.Kc6 Dh1+ 10.Kd7 Dh7+ 11.Kc6 De4+ 12.Kd7 De6+ 13.Kd8 Dd6+ nebst 14. - Dc7,De7#
3.Kc6? Lxf3+ 4.exf3 h1=D 5.a8=D Dxf3+ 6.Kd7 Dh3+ Schwarz gewinnt (2023-03-14)
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Genre: Studies
FEN: 8/8/P2K1k2/7b/8/5B2/4P2p/2b5
Reprints: 17 Dom Rodzinny (Torun) 07/06/1931
7 Shakhmaty v SSSR , p. 255, 08/1936
236 1234 Modern Chess Endings [Sutherland & Lommer] , p. 40, 1968
Input: Mario Richter, 2018-04-20
Last update: Mario Richter, 2023-03-14 more...
1. La5 Kb8 2. Sh6 Ka8 3. Sf7 Kb8 4. Sd8 Ka8 5. Lb4 Kb8 6. Lxd6+ Ka8 7. Lb7#
Duplicate Diagram: P1406256
Keywords: anticipated (P1406256a)
Genre: n#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-16)
FEN: k5N1/p1B5/B2p4/3p4/3P4/7K/8/8
Input: Rainer Staudte, 2021-03-16
Last update: Felber, Volker, 2022-11-29 more...
Genre: n#
Computer test: SCHRECKE: C+, Gustav 4.1d, Brute Force (2021-03-16)
FEN: k5N1/p1B5/B2p4/3p4/3P4/7K/8/8
Input: Rainer Staudte, 2021-03-16
Last update: Felber, Volker, 2022-11-29 more...
1. Dh8! Kxd3 2. Db2
1. ... d4 2. Dc8
1. ... Kxf5 2. Ld7+
1. ... d4 2. Dc8
1. ... Kxf5 2. Ld7+
Genre: 3#
Computer test: Popeye 4.61, except for the mate dual 1... d4 2.Dc8 Kd5 3.De6,Dc6#
FEN: 6Q1/8/K7/3p1P2/BP2kp1P/3N1p2/5P2/8
Reprints: 487 Deutsche Schachzeitung 6, p. 152, 03/1954
Input: Dieter Berlin, 2021-06-20
Last update: Alfred Pfeiffer, 2021-11-02 more...
1. Lb2! droht 2. Da3#
1. ... Lxb2 2. La2#
1. ... Txb2 2. Tc3#
1. ... Kxb2 2. Da2#
1. ... Dxc8 2. Db5#
1. ... Da4 2. Dc3#
1. ... Db4 2. Da2#
1. ... Lxb2 2. La2#
1. ... Txb2 2. Tc3#
1. ... Kxb2 2. Da2#
1. ... Dxc8 2. Db5#
1. ... Da4 2. Dc3#
1. ... Db4 2. Da2#
Henrik Juel (2021-07-23): Nowotny without the usual double threat
gespiegelter Nachdruck im FIDE-Album s. P1034719
Henrik Juel: C+ Popeye 4.61
Nowotny without the usual double threat (2021-07-23)
comment
gespiegelter Nachdruck im FIDE-Album s. P1034719
Henrik Juel: C+ Popeye 4.61
Nowotny without the usual double threat (2021-07-23)
comment
Genre: 2#
Computer test: Henrik Juel (2021-07-23): C+ Popeye 4.61
FEN: 2R4B/1p6/8/Q7/6q1/1k6/6rp/bB4nK
Reprints: 159 Nieuw Nederland 23/01/1948
Input: Mario Richter, 2021-07-23
Last update: Mario Richter, 2021-07-24 more...
* 1. ... a6 2. Dxa6#
* 1. ... Lxd6,Lc7 2. Dxa7#
* 1. ... Kc8 2. Dc7#
* 1. ... Kxa8 2. Lxc6#
1. Dd8! (Zugzwang)
1. ... a6,a5 2. Dxb8#
1. ... Ka6 2. Db6#
1. ... Kxa8 2. Lxc6#
1. ... Lxd6,Lc7 2. Dc8#
* 1. ... Lxd6,Lc7 2. Dxa7#
* 1. ... Kc8 2. Dc7#
* 1. ... Kxa8 2. Lxc6#
1. Dd8! (Zugzwang)
1. ... a6,a5 2. Dxb8#
1. ... Ka6 2. Db6#
1. ... Kxa8 2. Lxc6#
1. ... Lxd6,Lc7 2. Dc8#
FEN: Rb6/pk6/2pP4/Q1P5/5p2/5Bp1/6K1/8
Reprints: 25 Amitie et nature 04/1964
Input: Mario Richter, 2021-07-28
Last update: Alfred Pfeiffer, 2022-03-22 more...
1. Sb1? Le5! 1. Sb5? De3!
1. f4! Dxf4 2. Sb1 Lg1 3. e3!
1. ... Lxf4 2. Sb5 Dg7 3. e5!
1. f4! Dxf4 2. Sb1 Lg1 3. e3!
1. ... Lxf4 2. Sb5 Dg7 3. e5!
Keywords: Plachutta
Genre: n#
FEN: 8/pR3p2/6pq/3p4/1PkpP1n1/K1Nb1P2/1Q1pP2b/B1n2r2
Reprints: F Die Schwalbe 42, p. 581, 12/1976
Input: Dieter Berlin, 2021-09-27
Last update: Dieter Berlin, 2021-09-27 more...
Genre: n#
FEN: 8/pR3p2/6pq/3p4/1PkpP1n1/K1Nb1P2/1Q1pP2b/B1n2r2
Reprints: F Die Schwalbe 42, p. 581, 12/1976
Input: Dieter Berlin, 2021-09-27
Last update: Dieter Berlin, 2021-09-27 more...
1. Kc6! Sb4+ 2. Kc5 Sa6+ 3. Kb6 Th6+ 4. Ka5 Sa3 5. Tc1 Ke7 6. Ka4 Th3 7. Ka5 Sb8 8. Kb4 Kd6 9. Tc3 Sc6+ 10. Ka4 Txc3=
4. ... Sc3 5. Td6 Txd6=
Cook: Widerlegung:
4. ... Sa3 5. Tc1 Sb8 6. Tc7 Kg6 7. Ka4 Th3 8. Tb7 Sc2 9. Txb8 Ta3+ 10. Kb5 Tb3+
7. Tc3 Sb1 8. Tb3 Sc6+ 9. Kb6 Sd2 10. Td3 Sc4+ 11. Kxc6 Se5+
4. ... Sc3 5. Td6 Txd6=
Cook: Widerlegung:
4. ... Sa3 5. Tc1 Sb8 6. Tc7 Kg6 7. Ka4 Th3 8. Tb7 Sc2 9. Txb8 Ta3+ 10. Kb5 Tb3+
7. Tc3 Sb1 8. Tb3 Sc6+ 9. Kb6 Sd2 10. Td3 Sc4+ 11. Kxc6 Se5+
SCHRECKE: Unlösbar!
1.Kc6 Sb4+ 2.Kc5 Sa6+ 3.Kb6 Th6+ 4.Ka5 Sa3 5.Tc1 Sb8! und Schwarz gewinnt (Namilov) (2021-10-17)
comment
1.Kc6 Sb4+ 2.Kc5 Sa6+ 3.Kb6 Th6+ 4.Ka5 Sa3 5.Tc1 Sb8! und Schwarz gewinnt (Namilov) (2021-10-17)
comment
Keywords: Aristocrat, Minimal, Miniature
Genre: Studies
FEN: 8/5k1r/8/3K4/8/8/n7/1n1R4
Reprints: 2037 Problemista 194-197 07-09/1984
Input: Marcin Banaszek, 2021-10-17
Last update: Marcin Banaszek, 2021-10-17 more...
Genre: Studies
FEN: 8/5k1r/8/3K4/8/8/n7/1n1R4
Reprints: 2037 Problemista 194-197 07-09/1984
Input: Marcin Banaszek, 2021-10-17
Last update: Marcin Banaszek, 2021-10-17 more...
1. e7+! Kc7 2. e8=S+ Kd8 3. h7 Lb3+ 4. Kf8! Lh6+ 5. Sg7 Sd3 6. h8=L! Sc5=
Anton Baumann: unlösbar! Schwarz gewinnt nach Syzygy
6. ... Lf4 7.Sf5 Se5 8.Lxe5? Schwarz gewinnt nach Nalimov
8.Lf6+ Kd7 9.Kg7 Lc2 ... (2022-07-06)
comment
6. ... Lf4 7.Sf5 Se5 8.Lxe5? Schwarz gewinnt nach Nalimov
8.Lf6+ Kd7 9.Kg7 Lc2 ... (2022-07-06)
comment
Show statistic for complete result. Show search result faster by using ids.
https://pdb.dieschwalbe.de/search.jsp?expression=COMMENTDATE%3E%3D20200919+AND+NOT+K%3D%27Hilfsr%C3%BCckz%C3%BCger%27+AND+NOT+K%3D%27Funktionswechsel%27+AND+S%3D%27Schachmaty+w+SSSR%27
The problems of this query have been registered by the following contributors:
Gerd Wilts (8)Brian Stephenson (24)
Ivan Antonov (1)
Felber, Volker (36)
Zuncke/Bruder (17)
Nikolai Beluhov (1)
Erich Bartel (1)
Rainer Staudte (5)
Mario Richter (3)
Dieter Berlin (2)
Marcin Banaszek (2)
Na2 Nh4 9. Nb4 axb4 10. a5 Rb8 11. a6 Na8 12. a7 Nb6 13. a8=Q Rg8 14. Qa2
Ra8 15. Qe6 Ra3 16. Qg6 hxg6 17. Qb1 Na8 18. Ba7 b6 19. Qb3 Bb7 20. Qd3 Bf3
21. Qf5 gxf5 22. Nh3 Bh5 23. Nf4 Bg6 24. e3 Rh8 25. Bc4 Rh6 26. f3 Bh7 27.
Ng6 Bg8 28. Nh8 Rd6 29. h3 g6 30. Rf1 Bh6 31. Rf2 Bf4 32. Rf1 Bh2 33. f4
Rdd3 34. Rf3 Rac3 35. Rg3 Kf8 36. Rg5 Kg7 37. Rh5 Kf6 38. Rh7 Qc8 39. Rg7
Bh7 40. Rg8 Qa6 41. Rb8 Qa3 42. Rb7 Qb2 43. Bb8 Rb3 44. Rba7 Qd4 45. R7a2
Ra3 46. Rb2 Ra7 47. Rba2 Rb7 48. Ba7 Rb8 49. Rb2 Rg8 50. Rba2 Rg7 51. Bb8
Bg8 52. Rb2 Rh7 53. Rba2 Rh5 54. Rb2 Rg5 55. Rba2 Rg3 56. Rb2 Rf3 57. Rba2
Rf2 58. Rb2 Ra3 59. Rba2 Ra7 60. Rb2 Rb7 61. Ba7 Rb8 62. Rba2 Bh7 63. Ra6
Rg8 64. Bb8 Rg7 65. Ra7 Bg8 66. Rb7 Rh7 67. Ba7 Rh5 68. Rb8 Bh7 69. Rg8 Rg5
70. Rg7 Bg8 71. Rh7 Rg3 72. Rh6 Rgf3 73. Bb3 Kg7 74. Ba4 Kf8 75. Rh7 Ke8
76. Rg7 Bh7 77. Bb8 Kd8 78. Bb3 Kc8 79. Rg8+ Kb7 80. Ba4 Qg7 81. Re8 Bg8
82. Rf8 Bg3 83. O-O-O {50 moves rule} 1/2-1/2 (2012-11-14)
Olaf Jenkner: Warum nicht z.B. 83. Te8 remis?
Was bedeutet das Schlüsselwort unused? (2012-11-14)
Henrik Juel: The castling shows that White never moved his king before; otherwise the position could be reached faster, and the 50 moves rule could not be applied.
The keyword unused seems non-sensical here and should be deleted (2012-11-14)
A.Buchanan: This problem is very interesting. It's orthodox 50M, so that castling does not reset the counter, and the timing works out nicely. But it makes me wonder... suppose we have a problem where it is B32 which was the last reset. Then W83 0-0-0 would prove that the position had already been at 50.0. If 50M convention (which needs to be rewritten because it's a mess) operated like 3Rep, then the game end would have been mandatory after B82. So castling W83 would be illegal. Is this how one would want 50M convention to work? Or should there be a carve-out to say: if you can definitely prove that no-one claimed, then no-one claimed. And should there be a similar carve-out for 3Rep rule? See https://www.thehoppermagazine.com/AA010 (2022-01-20)
A.Buchanan: Personally, I think no carve-outs. The 50M convention should be rewritten as: "A position is considered as a draw if it can be proved that the last 50.0 moves in the proof game combined with the solution did not contain a capture or pawn move. Unless expressly stipulated, this applies only to retro-problems." (2022-01-20)
Thomas Volet: What if the composer intends the retroplay to go beyond 50 non-P and non-capturing moves? (2022-01-20)
A.Buchanan: Hi Thomas - thanks for your question. I think it’s best if we take this offline. I will email you, if that’s ok (2022-01-21)
James Malcom: This is the Volet problem in question: P0008399 In hindsight, it is quite humorous that the 75 move rule was later introduced in the 21st century. (2022-01-21)
Thomas Volet: The question was not directed specifically to P0008399, which is just one of several compositions with the property at issue. (2022-01-22)
A.Buchanan: I've emailed Thomas. My earlier comment should have include checkmate as a third mechanism to zero the count. (2022-01-22)
James Malcom: You can always carry it on over to MatPlus. (2022-01-24)
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