257 problem(s) found in 875 milliseconds (displaying 100 problem(s)).

1 - P0000007
Andrej N. Kornilow
Andrey Frolkin
Dmitri W. Pronkin

5408 Die Schwalbe 97 02/1986
P0000007
(15+15)
BP in 33,0
1. Sc3 Sc6 2. Se4 Se5 3. c3 c6 4. Da4 Da5 5. b3 b6 6. La3 La6 7. Lc5 Lc4 8. Le3 Le6 9. Lh6 Lh3 10. gxh3 gxh6 11. h4 h5 12. Lh3 Lh6 13. Lf5 Lf4 14. Sh3 Sh6 15. Tg1 Tg8 16. Tg3 Tg6 17. Te3 Te6 18. f3 f6 19. Kf2 Kf7 20. Tg1 Tg8 21. Tg4 Tg5 22. Sg3 Sg6 23. Lb1 Lb8 24. Td4 Td5 25. Tdd3 Tdd6 26. Df4 Df5 27. Te4 Te5 28. Ke3 Ke6 29. Sf2 Sf7 30. Sg4 Sg5 31. Sh6 Sh3 32. Sg8 Sg1 33. Dh6 Dh3
play all play one stop play next play all
Henrik Juel: After a couple of hours Natch 3.1 had not even found the symmetrical solution (2018-12-7)
comment
Keywords: Unique Proof Game, Symmetrical position
Genre: Retro
Reprints: 581 Ukrainisches Album 1986-1990
111 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Nikolai Beluhov, 2011-5-6 more...
2 - P0000108
Andrey Frolkin
6272 Die Schwalbe 111 06/1988
1. Lob
P0000108
(30+0) C+
Färbe die Steine!
BP in 19,0
1. h4 d6 2. Th3 Sd7 3. Tb3 Sdf6 4. Tb6 axb6 5. f4 Ta3 6. Kf2 Th3 7. a4 Th1 8. Ta3 Lh3 9. Tg3 Dd7 10. Tg6 hxg6 11. a5 Th5 12. a6 Ta5 13. h5 Ta1 14. h6 Da4 15. h7 b5 16. h8=T Sh7 17. a7 f6 18. a8=T+ Kf7 19. Ta7 Dd4+
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (16 min.)
The colored position has black Ta1,h1 and Pb5,g6, and white Ta7,h8, otherwise 'natural' (2018-12-7)
François Labelle: Henrik, did you really test all 2^30 possible colorings with Natch, or did you use human deductions to reduce the possibilities (making this HC+), or did you only test the intended coloring (making this a partial C+)? (2018-12-9)
comment
Keywords: Unique Proof Game, Coloring problem, under-promotion (TT), Phoenix
Genre: Retro
Computer test: Natch 3.1 (16 min.)
Reprints: 158 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-7 more...
3 - P0000111
Andrey Frolkin
Leonid Lyubashevsky

6330 Die Schwalbe 112 08/1988
4. ehrende Erwähnung
P0000111
(28+0)
Färbe die Steine!
BP in 11,0
1. h4 f5 2. Th3 Kf7 3. Tb3 De8 4. Tb6 axb6 5. g3 Ta3 6. Lg2 Tc3 7. Lc6 dxc6 8. dxc3 Le6 9. Dd8 Lb3 10. axb3 Dd7 11. Ta8 Dd1+
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1
The colored position is 'natural' except for wTa8, wDd8, and sDd1 (2018-12-7)
comment
Keywords: Unique Proof Game, Coloring problem, Interchange
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-27 more...
4 - P0000127
Frank Christiaans
6573 Die Schwalbe 116 04/1989
P0000127
(8+11)
#3
1. Kg7xf6 Th6+ 2. Sxh6 ... 3. c8=D,T#
play all play one stop play next play all
s. P0000133
NN: It seems we fall short of one retro-move and fail to keep either the bK or bR still.
Let's analyse, the distribution of bPs indicate 5 captures (bPh7×g6×f5×e4×d3×c2) plus 3 captures (bPc7×d6, bPb7×c6, bg7×f6) equalling a total of 8 captures, thus accounting for all of white's missing pieces. Next, wPs captured at least 3 (fxexdxc) plus wPc2×b3. Now, in order to keep the bK & bR still, we require sufficient supply of retro-moves for black. Thus, we must strive to release the bNa1 (as pawns are not enough!) at the earliest. But this can only be done through uncapturing the bishop on c1 followed by retracting bPd3×c2, wPd2-d3. An optimal way of doing this may be: -1.bPb7×wNc6 wNc6-d4, -2.bPa4-a3 wPc6-c7, -3.bPc7×wBd6 wBd6-b4, -4.bPa5-a4 wBb4-d2 -5.bPe6-e5 wBd2-c1 and here we can't retract anymore moves without violating bK's right to castle. Retracting bPa6-a5 for instance would mean that bRa8 got out of the pawn to be captured by a wP (as bBc8 never left its homesquare) forcing the bKe8 to move.
Thus, Black can't castle and the solution is 1.Kxf6 Rh6+ (1...0-0 is illegal) 2.Nxh6 ... 3.c8R/Q# (2018-11-30)
Mario Richter: If we assume that Black can still Castle, White needs a fifth capture to provide wPh2 as a capture object.
Furthermore, before d2-d3 can be retracted, both wRa1 and wBc1 have to return home (to b1 and c1) (2018-12-1)
comment
Keywords: Castling (sk), Cant Castler
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2014-1-15 more...
5 - P0000129
Manfred Seidel
6575 Die Schwalbe 116 04/1989
P0000129
(13+12) cooked
BP in 18,5
1. c4 Sa6 2. c5 Sxc5 3. Sf3 Se4 4. Se5 Sg3 5. Sxd7 e5 6. Sb6 axb6 7. hxg3 Ta3 8. Txh7 Tf3 9. gxf3 Lf5 10. Lh3 Lxh7 11. Lc8 f5 12. d3 Kf7 13. Le3 Kg6 14. Sd2 Kh5 15. Tc1 g6 16. Tc4 Lh6 17. Te4 Df8 18. Ld4 Le3 19. Le6
play all play one stop play next play all
Henrik Juel: Here is one of the three similar cooks
1.Sg1-f3 Sb8-c6 2.Sf3-e5 Sc6-d4 3.Se5xd7 Be7-e5
4.Sd7-b6 Ba7xb6 5.Sb1-c3 Ta8-a3 6.Sc3-b1 Ta3-g3
7.Bh2xg3 Sd4-f3 8.Bg2xf3 Lc8-f5 9.Th1xh7 Lf5xc2
10.Lf1-h3 Lc2xh7 11.Lh3-c8 Bf7-f5 12.Bd2-d3 Ke8-f7
13.Lc1-e3 Kf7-g6 14.Sb1-d2 Kg6-h5 15.Ta1-c1 Bg7-g6
16.Tc1-c4 Lf8-h6 17.Tc4-e4 Dd8-f8 18.Le3-d4 Lh6-e3
19.Lc8-e6 (2018-12-7)
comment
Keywords: Unique Proof Game
Genre: Retro
Reprints: 146 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2004-8-27 more...
6 - P0000172
Dmitri W. Pronkin
6991v Die Schwalbe 123 06/1990
P0000172
(13+13)
BP in 24,5
1. Sc3 Sf6 2. Se4 Sd5 3. Sg5 Sc3 4. Sxh7 Sb1 5. Sxf8 Th5 6. h4 Tg5 7. hxg5 Kxf8 8. Th6 Kg8 9. Tb6 Kh7 10. g6+ Kh6 11. e4 Kg5 12. Lb5 Kf4 13. Ke2 Ke5 14. Kf3 Kd4 15. Kf4 Kc5 16. b4+ Kxb4+ 17. La3+ Kxa3 18. Df3+ Kb2 19. a4 Kc1 20. Se2+ Kd1 21. Sc1+ Ke1 22. Sd3+ Kf1 23. Sb2+ Kg1 24. Lf1 Kh1 25. Dd3
play all play one stop play next play all
Henrik Juel: The long promenade is made by k, not K (2018-12-7)
comment
Keywords: Unique Proof Game, Promenade (K)
Genre: Retro
Reprints: 579 Ukrainisches Album 1986-1990
113 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-27 more...
7 - P0000231
Jasper van Atten
7376 Die Schwalbe 129 06/1991
3. Preis
P0000231
(16+13)
BP in 20,0
1. h4 a5 2. h5 a4 3. h6 Ta5 4. hxg7 Sh6 5. g8=T Sa6 6. Tg3 Tg8 7. c4 Tg6 8. c5 Lg7 9. c6 Kf8 10. cxb7 De8 11. b8=T Lb7 12. Td8 d6 13. Td7 Dd8 14. b3 Ke8 15. Lb2 Lf8 16. Lg7 Tf5 17. Tc3 Tf3 18. exf3 Sb8 19. La6 Lc8 20. Lb7 Sg8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (5 min.) (2018-12-7)
comment
Keywords: Unique Proof Game, Non-standard material, Promotion (TT)
Genre: Retro
Reprints: 131 Shortest Proof Games 11/1991
feenschach 137 08-09/2000
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2006-1-9 more...
8 - P0000372
Andrey Frolkin
8422 Die Schwalbe 145 02/1994
1. ehrende Erwähnung
P0000372
(14+12)
BP in 23,5
1. Sh3 g5 2. Sf4 g4 3. h3 g3 4. Th2 gxh2 5. Sh5 h1=S 6. f4 Sg3 7. f5 Sxf1 8. f6 Sh2 9. fxe7 f5 10. Kf2 f4 11. Dg1 f3 12. Kg3 Sf6 13. Dxa7 c5 14. Sc3 Sc6 15. Db8 Ta3 16. Sa4 Tc3 17. bxc3 f2 18. La3 f1=T 19. Lb4 Th1 20. Tf1 Db6 21. Tf3 Sd8 22. Te3 Sf1+ 23. Kf3 De6 24. exd8=T+
play all play one stop play next play all
"Uff, das war bannig oder sakrisch schwierig, je nach landschaftlicher Mundart. Daß die schwarzen UW-Steine den Platz tauschen, war wohl das Uranliegen des Autors. Aber dazu hat er sich doch ganz Hübsch etwas einfallen lassen: Falsche Fährten legen und Unerwünschtes verunmöglichen - das ist ihm bestens gelungen" (HHS) "Dieser Platztausch der umgewandelten Figuren fasziniert mich sehr" (RS) 3,5/III/6L.
Henrik Juel: Unfortunately cooked
1.Sg1-h3 Sb8-c6 2.Bf2-f4 Sc6-e5 3.Bf4-f5 Bg7-g5
4.Sh3-f4 Bg5-g4 5.Bf5-f6 Bg4-g3 6.Bf6xe7 Bf7-f5
7.Sf4-h5 Bf5-f4 8.Bh2-h3 Bf4-f3 9.Th1-h2 Bg3xh2
10.Ke1-f2 Bh2-h1=T 11.Kf2-g3 Th1xf1 12.Sb1-c3 Tf1-h1
13.Dd1-g1 Se5-g4 14.Dg1xa7 Sg4-h2 15.Da7-b8 Ta8-a3
16.Sc3-a4 Ta3-c3 17.Bb2xc3 Bf3-f2 18.Lc1-a3 Bf2-f1=D
19.La3-b4 Df1-f5 20.Ta1-f1 Df5-e6 21.Tf1-f3 Sg8-f6
22.Tf3-e3 Sh2-f1 23.Kg3-f3 Bc7-c5 24.exd8=T+ (2018-12-7)
comment
Keywords: Unique Proof Game, Interchange, Promotion (ts)
Genre: Retro
Reprints: H22 FIDE Album Annexe 1992-1994 2003
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-27 more...
9 - P0000393
Pascal Wassong
8552 Die Schwalbe 147 06/1994
2. ehrende Erwähnung
P0000393
(10+16) C+
BP in 23,0
1. h4 Sc6 2. Th3 Se5 3. Tb3 Sg4 4. Tb6 axb6 5. c4 Ta3 6. Da4 Th3 7. g3 Th1 8. Lg2 Sh2 9. Lc6 dxc6 10. Kd1 Lh3 11. Kc2 e6 12. Kb3 Lb4 13. c5 Lxd2 14. Db4 Lh6 15. Le3 Dxh4 16. Sd2 f6 17. Tc1 Kf7 18. Tc4 Kg6 19. Tg4+ Kh5 20. Tg6 hxg6 21. Lg5 fxg5 22. Ka4 Sf6 23. b3 Sh7
play all play one stop play next play all
more ...
comment
Keywords: Unique Proof Game, Ornament
Genre: Retro
Computer test: Henrik Juel: C+ by Natch 3.1 (4 min.) (2018-12-8)
Reprints: (I) Phénix 91 12/2000
Input: Gerd Wilts, 1995-6-3
Last update: Erich Bartel, 2018-12-8 more...
10 - P0001110
Michel Caillaud
3396 Die Schwalbe 67 02/1981
4. Preis
P0001110
(14+12)
Wieviele Züge sind seit dem letzten Bauernzug mindestens geschehen?
Renny Bosch: I believe the minimum number of moves since the last pawn move is 68, based on the following PG (or SPG?): 1. g4 Nc6 2. Bg2 Na5 3. Bc6 Nb3 4. axb3 Nf6 5. Nc3 Ne4 6. Nd5 Nc3 7. dxc3 Rg8 8. Qd4 Rh8 9. Qb6 axb6 10. Be3 Rg8 11. Bc5 Rh8 12. Bb4 Rg8 13. Ra5 Rh8 14. Rc5 bxc5 15. Ba5 Rg8 16. Bb6 Rh8 17. Ba7 Rg8 18. Bb8 Rh8 19. Ba4 Ra6 20. Kd2 Re6 21. Kd3 Re5 22. Kc4 Re4+ 23. Kb5 Rc4 24. bxc4 Rg8 25. Bb3 Rh8 26. Nh3 Rg8 27. Ra1 Rh8 28. Ra7 Rg8 29. Nb6 Rh8 30. Na8 Rg8 31. Nf4 Rh8 32. Nd5 Rg8 33. Ndb6 h6 34. Na4 b6 35. Ba2 Bb7 36. Bb1 Be4 37. g5 Bh7 38. g6 Rh8 39. gxh7 { the last pawn move } g6 40. Rb7 Bg7 { move bB, bK, bQ out of row 8 } 41. Ba7 Be5 42. Rb8 Kf8 43. Ka6 Kg7 44. Kb7 Qg8 45. Rf8 Kf6 46. Kc8 { allow bR to pass wK } Qg7 47. Rg8 Ke6 48. Kd8 Qf6 49. Ke8 Qf5 50. Kf8 Bf4 51. Kg7 Qg5 { reverse order of the two rooks }52. Rb8 Rc8 53. Rb7 Rd8 54. Bb8 Rc8 55. Ra7 Rd8 56. Ra5 Rc8 57. Ba7 Rb8 58. Rb5 Rb7 59. Bb8 Ra7 60. Rb3 Ra5 61. Ra3 Rb5 62. Ra1 Rb3 63. Ba2 Ra3 64. Bb3 Ra2 65. Rd1 Ra1 66. Rd2 Re1 67. Rd1 Rf1 68. Ra1 Rb1 69. Ra3 Rc1 70. Ba2 Ra1 71. Bb1 Ra2 72. Rb3 Ra3 73. Rb5 Rb3 74. Ra5 Ra3 75. Ra7 Rb3 76. Rb7 Ra3 77. Ba7 Rb3 78. Rb8 Ra3 79. Rh8 Qf6+ 80. Kf8 { move bK past wR } Qg7+ 81. Ke8 Kf6 82. Kd8 Be5 83. Kc8 Qg8+ 84. Kb7 Kg7 85. Ka6 Kf8 86. Kb5 Ke8 87. f3 Kd8 88. Ba2 Kc8 89. Bb1 Kb7 90. Ba2 Qg7 91. Rg8 Qf6 92. Bb1 Qe6 93. Ba2 Bh8 94. Rg7 { put wR into pocket, and final cleanup } Kc8 95. Ka6 Kd8 96. Kb7 Ke8 97. Kc8 Kf8 98. Kd8 Rb3 99. Bb1 Rb5 100. Ba2 Ra5 101. Bb8 Ra7 102. Bb1 Rb7 103. Ba7 Qc6 104. Ba2 Qb5 105. Bb1 Qb4 106. Ba2 Qa3 107. Rg8# (2007-4-24)
Michel Caillaud: the exact stipulation ends "mindestens geschehen".
(in english : "minimum number of moves since the last Pawn move?").
the last Pawn move is f2-f3,that must be interposed before g7-g6 as otherwise the 50-moves rule would have been violated.
the answer is a minimum of 15,0 moves with a retro-play running as :
-1.Tg7-g8# ...-16.f2-f3! ... -65...g7-g6
with 49,5 moves between g7-g6 and f2-f3 the 50-moves rule has been respected (2007-9-12)
Michel Caillaud: more detail on intended retro-play :
-1.Tg7-g8# … -4…De6-c6 … -8…Tb3-b5 -9.Kb5-a6 Ta3-b3+ -10.La7-b8 … -13…Kb7-c8 -14.Tg8-g7 Ld4-h8
-15.Tf8-g8 Df6-e6 -16.f2-f3! Dg7-f6 -17.Th8-f8 Dg8-g7 -18.Lb1-a2 Ta1-a3 -19.La2-b1 … -24… Kf6-g7 -25.Kb7-a6 Dg7-g8 -26.Tb8-h8 Ke5-f6 -27.Kc8-b7 … -28… Dh4-f6 -29.Ke8-d8 … -35… Td2-d1 -36.Ta3-b3 … -37.Lb3-a2 … -39.Th1-a1 Td1-d2 -40… Ta1-d1 -41.Kg7-f8 Ta3-a1 -42.La2-b3 …-48… Th8-b8 -52.Tb7-a7 … -53.La7-b8 … -55.Tg8-b8 … -59.Kç8-d8 Kf6-e5 -60.Kb7-ç8 Kg7-f8 -61.Tb8-g8+ Kf8-g7 -62.Kc8-b7+ Ke8-f8 -63.Tb7-b8 Lg7-d4 -64.Lb8-a7 Lf8-g7 -65.Ta7-b7 g7-g6 (2007-9-18)
Henrik Juel: After -1.Tg7-g8# the main parts of the resolution are
(s/w mean black/white)
sDa3 out, sTb7 to a3, wKe8 to b5, sKf8 to b7, wTg7 to h8 and sLh8 to d4, sD to g8, sKb7 via g7 to e5, sDg8 out, wKb5 to g7, sTa3 to d2, wTh8 to e1, sTd2 to h8, wTe1 to g8,
(the rooks have switched place)
wKg7 to b7, wTg8 to b8, wKb7 to c8, sKe5 to e8, sLd4 to f8,
-65... g7-g6 -66.g6xLh7
(so -16.f2 was needed to avoid draw by the 50 moves rule)
wTb8 to h1, wKc8 to b5, sD to d8, sLh7 to c8,
-88... b7-b6
wSa8 out, wLa7 to a5,
-99... b6xTc5
wTc5 to a1, wLa5 to c1,
-111.d2xTc3
sTc3 to a8 and wSa4 to b1, wLa2 to a4
-222.b3xSc4 a7xDb6 -223.a2xSb3 (2018-12-5)
Henrik Juel: It is difficult to avoid typos in such a mess
in line 3, wKd8 to b5, not e8
Michel also seems to have made some typos:
49.0 moves between -16.f2 and -65... g7, not 49.5
-25... Kf6, not 24 (may have implications for the solution) (2018-12-5)
more ...
comment
Keywords: 50 move rule
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: hpr, 2008-8-26 more...
11 - P0001404
Jean Roche
278 Europe Echecs 182 01/1974
Lob
P0001404
(7+13) C+
h#2
if white can castle: 1. Td7 0-0-0 2. Kd8 Dxd7#
if black can castle: 1. Td7 Txa7 2. 0-0-0 Ta8#
play all play one stop play next play all
NN: The above is basically two parts of a single solution depending on the history of the game and not two different solutions.

Proof of why castling rights are mutually exclusive: Let's assume black CAN castle. Now, the bPs piled up on h-file implies six captures of white units and these can only be wRBBNN & wPe2. Because all other possibilities involve promotion of wPs on d8/e8/f8 followed by their capture by bPs, interfering with black's castling right. Next, we observe that wRh1 getting captured by bPs implies one of the following two things: (i) wKe1 moved to let wRh1 out of the pawn-chain or (ii) wPg2,h2 cross-captured on h3,g3 respectively to facilitate the escape of wRh1. Furthermore, option (ii) necessitates bPd7 to be promoted to d1 so that it can be captured by wPs, implying wKe1 had to move anyway to let bPd7 promote.
Thus, Black can castle implies wKe1 moved and white can't castle. Contrapositively, white can castle will imply that black can't. (2018-11-29)
Henrik Juel: Nice analysis, Satanick (2018-11-29)
NN: Thanks Henrik Juel. Hope there are no mistakes. (2018-11-29)
Yoav Ben-Zvi: The claim that retaining Black castling requires an uncapture of a wR by Black's h-file pawns is not accurate. Consider the case that all 6 of these bP uncaptures are of wBs and wNs. In this case 2 of the uncaptured White pieces unpromote. Both could be unpromoted (on f8 or d8) by an uncapture from e7. This scenario requires a third wP uncapture (on the e file) so one of White's uncaptures is accounted for by [bPd7]. The direct uncapture of [bPd7] (on the e file) or its unpromotion without stepping on d2 requires this pawn to uncapture the wR, confirming the conclusion of mutually exclusive castling. A similar argument works for the case that the Black h file pawns play bPe7xwPf6 along with 5 uncaptures of WNs and wBs. (2018-12-3)
Henrik Juel: Now we can test
C+ by Popeye 4.61 (and analysis)
The main content is the retro analysis, of course, but as a helpmate problem the repeated 1.Td7 detracts (2018-12-3)
more ...
comment
Keywords: Partial Retro Analysis (PRA), Castling (wgsg), Castling, mutual exclusive
Genre: h#, Retro
Computer test: Popeye 4.61
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-3 more...
12 - P0001430
Luis Alberto Garaza
304 Europe Echecs 205 01/1976
P0001430
(13+14)
#3
if Black can castle long: 1. Dxc7! droht 2. Dxe7#
1. ... Sf5,Se7~ 2. Dd7+ Kf8 3. Df7#
1. ... Kf8 2. Dxe7+ Kg8 3. Dxg7#

if Black can castle short: 1. Dxg7! droht 2. Dxe7#
1. ... Sf5,Se7~ 2. Df7+ Kd8 3. Dd7#
1. ... Kd8 2. Dxh8+ Sg8 3. Dxg8#
play all play one stop play next play all
Satanick: Castling for black is legal only on one side. The above solution cover the two mutually exclusive cases.
NN: Solution: If Black can castle long: 1.Qxc7! (Threat: Qxe7#) 1...N moves (1...Kf8 2.Qxe7+ Kg8 3.Qxg7#) 2.Qd7+ Kf8 3.Qf7# & if Black can castle short: 1.Qxg7! (Threat: Qxe7#) 1...N moves (1...Kd8 2.Qxh8+ Ng8 3.Qxg8#) 2.Qf7+ Kd8 3.Qd7#

The bBe1 is obviously a promotee. This implies bPd7,e7 made one capture each namely, dxe & fxe. Consequently, either the missing wPg2 or wPb2 (but not both!) had to be captured by bP on the e-file. But neither wPg2 nor wPb2 could have gone to the e-file capturing white units because that, together with wPe2×d3, make three captures in all and black is missing only two units. Hence, either one of them promoted to h8/a8 first prior to be captured on the e-file. This shows exactly one of bRh8 and bRa8 has moved before facilitating the promotion and therefore, black has right to castle only on one side. Accordingly,1.Qxc7 is the key if black has the right to castle long and 1.Qxg7 is the key if otherwise. (2018-11-29)
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comment
Keywords: Cant Castler, Castling (sksg), Promotion (l), Partial Retro Analysis (PRA), Promoted material on the board (sLe1)
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-11-30 more...
13 - P0001613
Andrey Frolkin
483 Europe Echecs 343/344 07/1987
P0001613
(13+14) C+
BP in 21,5
1. a4 Sc6 2. Ta3 Sd4 3. Tg3 Sxe2 4. Kxe2 g5 5. Ke3 Lh6 6. Lc4 Kf8 7. La2 Kg7 8. c4 Kf6 9. Db3 Ke6 10. Db6+ axb6 11. b4 Ta5 12. Lb2 Tb5 13. Lg7 Sf6 14. Sf3 Dg8 15. Lf8 Dg6 16. Te1 Tg8 17. Te2 Tg7 18. Se1 g4+ 19. f4 gxf3ep+ 20. Tg5 Sg8 21. c5+ d5 22. cxd6ep+
play all play one stop play next play all
Ein schwarzer und ein weißer ep-Schlag.
more ...
comment
Keywords: Unique Proof Game, En passant
Genre: Retro
Computer test: Natch 3.1 (5 min.)
Reprints: 575 Ukrainisches Album 1986-1990
94 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-6 more...
14 - P0002272
Andrey Frolkin
Themes-64 1985
Lob e.a.
P0002272
(12+14) C+
BP in 20.5
1. Sf3 a5 2. Sd4 a4 3. Sb3 axb3 4. a3 Ta4 5. Ta2 bxa2 6. h4 axb1=S 7. h5 Sc3 8. h6 Sxd1 9. hxg7 h6 10. Th5 Th7 11. Ta5 b5 12. Ta8 Ta7 13. f3 La6 14. f4 Dc8 15. f5 Db7 16. f6 Df3 17. gxf3 Kd8 18. Lh3 Kc8 19. Lg2 Kb7 20. Lh1 Kc6 21. f4+
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (2 min.)
Tempo loss at 13.f2-f3-f4 and 18.Lf1-h3-g2-h1 (2018-12-6)
Joost de Heer: IMO f2-f3-f4 isn't a tempo loss, as the pawn is needed for shielding. (2018-12-7)
Henrik Juel: I see no shielding by [Pf2], Joost
White could play 13.f4?, but he would run out of moves
White plays 17.gxf3, and this wP will later shield, so wLg2 does not check sKb7, but that is a different story (2018-12-7)
comment
Keywords: Unique Proof Game, Non-standard material, Loss of tempo (BL3), Promotion
Genre: Retro
Computer test: Natch 3.1 (2 min.)
Reprints: 63 Shortest Proof Games 11/1991
3397 U.S. Problem Bulletin 102/103 07-10/1995
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-7 more...
15 - P0002281
Andrey Frolkin
2320 diagrammes 94 07-09/1990
1. Preis
P0002281
(14+16)
BP in 15,5
1. d3 d5 2. Le3 d4 3. Sd2 dxe3 4. Sb3 Dd4 5. Dd2 Ld7 6. 0-0-0 exd2+ 7. Kb1 De3 8. Tc1 d1=T 9. d4 Td3 10. Td1 Tc3 11. Td2 Tc6 12. Kc1 Td6 13. Kd1 Lc6 14. Ke1 Sd7 15. Td1 0-0-0 16. Ta1
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (28 min.) (2018-12-8)
Henrik Juel: No solution in 15.0 or 14.5, so C++... (2018-12-8)
comment
Keywords: Unique Proof Game, Castling (wgsg), Castling Paradox (wg hidden), Non-standard material (t), Promoted material on the board (t)
Genre: Retro
Reprints: 88 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: TBr, 2018-3-23 more...
16 - P0002284
Andrey Frolkin
Kalininskaja Prawda 1988
Spezialpreis
P0002284
(14+13)
BP in19,5
1. Sf3 Sc6 2. Se5 Sd4 3. Sc6 dxc6 4. b4 Dd5 5. b5 Ld7 6. b6 0-0-0 7. bxa7 Le8 8. a8=S Kb8 9. Sb6 Ka7 10. Sd7 Ka6 11. Sxf8 Td7 12. Sg6 hxg6 13. c4 Th5 14. e4 Te5 15. Le2 f5 16. 0-0 Sf3+ 17. Kh1 Sg1 18. f3 Sf6 19. c5+ b5 20. cxb6ep+
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Henrik Juel: C+ by Natch 3.1
No solution in 18.5 or 17.5, so C++ (2018-12-8)
comment
Keywords: Unique Proof Game, En passant, Castling, Promotion (S), Valladao Task
Genre: Retro
Reprints: 96 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2004-11-13 more...
17 - P0002289
Andrey Frolkin
Andrej N. Kornilow

2235 diagrammes 92 01-03/1990
P0002289
(14+14)
BP in 21,0
1. f3 Sc6 2. Kf2 Sd4 3. Kg3 Sxe2+ 4. Kg4 Sg3 5. hxg3 Tb8 6. Th5 Ta8 7. Ta5 Tb8 8. Lb5 Ta8 9. c4 Tb8 10. Dc2 Ta8 11. Dg6 Tb8 12. d3 Ta8 13. Ld2 Tb8 14. Le1 Ta8 15. Sd2 Tb8 16. Tc1 Ta8 17. Tc3 Tb8 18. Tca3 Ta8 19. T3a4 Tb8 20. a3 Ta8 21. Lxd7+ Dxd7+
play all play one stop play next play all
Henrik Juel: Natch 3.1 tests the first 20.0 moves OK in 13 seconds, but the first 20.5 moves would take more than an hour, and the entire problem more than a couple of hours, because of the possibility of [Pd7] promoting
So we may never know for sure whether this proof game with 16 oscillations by Ta8 is correct (2018-12-8)
more ...
comment
Keywords: Unique Proof Game
Genre: Retro
Reprints: 101 Shortest Proof Games 11/1991
58b 64 Proof Games 2012
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2012-12-26 more...
18 - P0002312
Kostas Prentos
5673 feenschach 93 11-12/1989
P0002312
(14+11)
BP in 17,5
1. e3 b5 2. Ld3 b4 3. Lg6 b3 4. axb3 hxg6 5. Ta5 Th3 6. Tb5 Tg3 7. hxg3 a5 8. Th8 a4 9. Dh5 a3 10. Se2 Ta4 11. bxa4 gxh5 12. b3 g6 13. Lb2 Lh6 14. Lg7 Lg5 15. Lh6 Lh4 16. gxh4 a2 17. Sg3 a1=T 18. Txg8#
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Henrik Juel: The content is concealed pawn captures
Despite no visible captures White captured a2xPb3xTa4 to open the a-line for [Ta1,Pa7], and h2xTg3xLh4 with black h7xLg6xDh5 to open the h-line for [Th1,Th8]
This makes life difficult for the human solver and for Natch 3.1, who tested the first 15.0 moves correct in 40 sec.
Testing the entire proof game would need more than a couple of hours by Natch (2018-12-8)
comment
Keywords: Unique Proof Game, Promotion (t)
Genre: Retro
Reprints: 143 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2014-11-7 more...
19 - P0002313
Yaakov Mintz
The Problemist 1987-1988
3.-5. ehrende Erwähnung e.a.
P0002313
(12+11)
BP in 17,5
1. f3 e5 2. Kf2 e4 3. De1 e3+ 4. Kxe3 Ke7 5. Dg3 De8 6. Kf2 Kd8 7. Ke1 Lc5 8. Kd1 Lxg1 9. De1 Lxh2 10. Txh2 d6 11. Txh7 Le6 12. Txg7 Th1 13. Th7 Lxa2 14. Th8 Lxb1 15. Txa7 b5 16. Tb7 Ta1 17. Ta7 b4 18. Ta8
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Cook: NL
1. f3 e5 2. Kf2 e4 3. De1 e3+ 4. Kxe3 b5 5. Dg3 b4 6. Kf2 Lc5+ 7. Ke1 Lxg1 8. Kd1 Lxh2 9. Txh2 d6 10. Txh7 Le6 11. Txg7 Th1 12. Th7 Lxa2 13. Th8 Lxb1 14. Txa7 Ke7 15. Tb7 Ta1 16. Ta7 De8 17. Ta8 Kd8 18. De1 (Mario Richter)
paul: C+ (Euclide 1.11) for the first 13 moves (in about 51 hours). I do not dare to check for 13.5 moves. (2018-3-8)
Henrik Juel: Tiny typo in Mario's cook: 10.Txh7 (2018-3-8)
Mario Richter: The typo comes from a "by hand conversion" of the output of several tools I'm using (here: rawbats and chessbase) - unfortunately each tool has it's own output format, incl. the PDB solution field format ... (2018-3-9)
A.Buchanan: I have a janitor's tool which allows me to change the representation of positions & solutions.
Try to copy the file here: https://www.dropbox.com/sh/ld64s00zm0f9tx8/AAA7r8BsA0vuLcZOOKNvKkmua?dl=0
Click on it, and then hit the download button on the right.
The most useful is the one which converts from FEN to PDB "pieces" format.
Stick the input string in the yellow cell, and pick up the result from the green cell.
If you want to see how it's done, unhide the hidden rows and columns: no VBA just simple Excel.
Only 1% as clever as rawbats, but it still saves me a lot of time.
Feel free to use and to improve. (2018-3-9)
Mario Richter: @Andrew: Thanks for your offer - but I have such tools myself. My fault was not to use them (I thought that I'll be able to transform such a short PG by hand without errors ...)
Would be nice if the PDB-System would be more helpful with respect to language support.
I've decided to use 'english' in the language settings, but that doesn't help here, since solutions still have to be given in german piece notation.
Might be difficult to change this, especially when thinking of fairy piece names, so I can live with that, but there are other aspect which sometimes drive me crazy, e.g. the handling of source names in different languages ... (2018-3-9)
A.Buchanan: I thought you might have such a tool, but I thought it was a nice opportunity to announce it for others who might find it useful. (2018-3-9)
Henrik Juel: this problem should be labelled cooked (2018-12-8)
more ...
comment
Keywords: Unique Proof Game, Interchange, Belfort
Genre: Retro
Reprints: 144 Shortest Proof Games 11/1991
Best Problems 47 07/2008
Input: Gerd Wilts, 1995-6-3
Last update: Mario Richter, 2018-3-9 more...
20 - P0002314
Valentin Balanovsky
Andrey Frolkin

Mat (Belgrad) 1985
P0002314
(11+14)
BP in 18,0
1. h4 d5 2. Th3 d4 3. Ta3 Lh3 4. Txa7 e6 5. a4 Ld6 6. Ta3 Lh2 7. Tf3 d3 8. Tf6 Dd4 9. f4 Dxb2 10. Kf2 Dxc1 11. Ke3 Dxd1 12. Kd4 Dxf1 13. Kc3 Dxg1 14. Kb2 De3 15. Kc1 Sd7 16. Kd1 0-0-0 17. Ke1 Kb8 18. Txb7+ Ka8
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Version A. Frolkin
Henrik Juel: Cooked by
1.Ba2-a4 Bd7-d5 2.Ta1-a3 Bd5-d4 3.Bh2-h4 Lc8-h3
4.Ta3-f3 Be7-e6 5.Tf3-f6 Lf8-d6 6.Sb1-a3 Ld6-h2
7.Bf2-f4 Bd4-d3 8.Ke1-f2 Dd8-d4 9.Kf2-f3 Dd4xg1
10.Dd1-e1 Dg1xf1 11.De1-f2 Df1xc1 12.Df2xa7 Dc1xb2
13.Kf3-f2 Db2-e5 14.Da7-e3 Sb8-d7 15.Th1-b1 O-O-O
16.Kf2-e1 Kc8-b8 17.Tb1xb7 Kb8-a8 18.Sa3-b1 De5xe3
with lots of variations (2018-12-6)
comment
Keywords: Unique Proof Game, Castling
Genre: Retro
Reprints: 145 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2006-1-10 more...
21 - P0002315
Jasper van Atten
Probleemblad 1985
4.-5. ehrende Erwähnung
P0002315
(16+15)
BP in 23,0
1. d4 g6 2. Kd2 Lg7 3. Ke3 Lf6 4. Kf4 Le5+ 5. Kg5 Sf6 6. Kh6 Lf4+ 7. Kg7 Lh6+ 8. Kxh8 Lf8 9. Lh6 Sg8 10. e3 f6 11. Dh5 Kf7 12. Sf3 Ke6 13. Lc4+ Kd6 14. Td1 De8 15. Td3 Df7 16. Ta3 Dd5 17. Sc3 Ke6 18. Ta6+ Kf7 19. a3 De6 20. Dc5 Ke8 21. Se5 Df7 22. Le6 Kd8 23. Sd5 De8
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Henrik Juel: C+ by Natch 3.1 (59 min.)
The content is given by the diagram position: Get wKe1 to h8 and interchange the black royals
Lf8 makes the roundtrip f8-g7-f6!-e5-f4-h6-f8
[Dd8] goes d8-e8-f7-d5-e6!-f7-e8
Resentful of the dissipation by some of his officers [Ke8] wastes no time going e8-f7-e6-d6-e6-f7-e8-d8 (2018-12-8)
comment
Keywords: Unique Proof Game
Genre: Retro
Reprints: 149 Shortest Proof Games 11/1991
Best Problems 47 07/2008
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2010-6-4 more...
22 - P0002318
Andrey Frolkin
The Problemist 1989
3. Preis
P0002318
(31+0)
Färbe die Steine!
BP in 17,5
1. e4 c5 2. Dg4 Da5 3. De6 fxe6 4. Ke2 Kf7 5. Kf3 Kf6 6. Kg4 Ke5 7. Kg5 h5 8. Kg6 Kf4 9. Kf7 Sh6+ 10. Ke8 Sf7 11. Lb5 Th6 12. d3+ Dd2 13. g4 a5 14. Sh3+ Kf3 15. g5 Ke2 16. Sg1+ Ke1 17. h3 Dd1 18. Sf3++
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Henrik Juel: The capture was fxDe
If White made it, Dd1 is white and so is Ke1, but he would stand in an illegal check from sPf2
So Dd1 and Ke1 are black (and Ke8 is white), and the rest of the men have a 'natural' color because of the shortish proof game, which is
C+ by Natch 3.1 (2 sec.) (2018-12-8)
comment
Keywords: Unique Proof Game, Coloring problem
Genre: Retro
Reprints: 155 Shortest Proof Games 11/1991
feenschach 137 08-09/2000
Input: Gerd Wilts, 1995-6-3
Last update: TBr, 2015-11-22 more...
23 - P0002319
Andrey Frolkin
Leonid Lyubashevsky

The Problemist 1988
1. Preis
P0002319
(30+0)
Färbe die Steine!
BP in 19,5
1. h4 h5 2. Th3 Th6 3. Tb3 Ta6 4. g3 g6 5. Lh3 Lh6 6. Le6 Le3 7. dxe3 dxe6 8. Ld2 Kd7 9. Lb4+ Kc6 10. Sc3 De8 11. Dd8 Sd7 12. 0-0-0 Sdf6 13. Kb1 Dd7 14. Ka1 Se8 15. Tb1 Dd1 16. Sd5 Kb5 17. Ld6+ Ka4 18. Tb6 Ld7 19. Sb4 Lb5 20. b3+
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Henrik Juel: The fastest captures are d2xLe3 and d7xLe6, so Lb5/Ld6 are black/white respectively
If Ka4 were white, so that Ka1,Tb1 would be black, more than 19 black moves would be needed
So Ka1, Tb1 (and Tb6) are white, needing white castling, which entails that Dd8 is white, because this saves a white move; then Dd1 and Ta6 are black, and the rest are 'naturally' colored, with Sb4/Se8 white/black
The colored position is C+ by Natch 3.1 (0.3 sec.)
The position after switching the colors of Sb4/Se8 cannot be reached in 19.5 moves (2018-12-8)
comment
Keywords: Unique Proof Game, Coloring problem, Castling
Genre: Retro
Reprints: 588 Ukrainisches Album 1986-1990
156 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-27 more...
24 - P0002320
Andrey Frolkin
Henri Nouguier

(8) diagrammes 92 01-03/1990
4. ehrende Erwähnung
P0002320
(31+0)
Bestimme die Art und Farbe der Steine für eine KBP!
1. h4 Sh6 2. Th3 Sf5 3. Te3 Sd4 4. Te6 dxe6 5. e3 Dd7 6. Lb5 Kd8 7. De2 De8 8. Ld7 Sbc6 9. Kd1 Tb8 10. De1
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Henrik Juel: The decoding is easy, with letters ABCDEF representing the men DKPLST; the coloring is natural, with Ld7 being white
The shortest proof game lasts 9.5 moves and is
C+ by Natch 3.1 (2018-12-8)
comment
Keywords: Letter problem, Unique Proof Game
Genre: Retro
Reprints: 591 Ukrainisches Album 1986-1990
159 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2004-8-10 more...
25 - P0002333
Jasper van Atten
The Problemist 1987-1988
3.-5. Ehrende Erwähnung
P0002333
(16+15)
BP in 19,0
1. e4 Sf6 2. Lc4 Sd5 3. d3 f6 4. Lf4 Kf7 5. Dh5+ Ke6 6. Se2 De8 7. 0-0 Dg6 8. Kh1 Dg3 9. De8 De3 10. fxe3 Sc6 11. Tf3 Se5 12. Th3 Kd6 13. Sg3 Sb4 14. Lf7 Kc6 15. c4 Sg4 16. Sc3 Sh6 17. Tg1 Sg8 18. Th6 Sa6 19. h3 Sb8
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Henrik Juel: C+ by Natch 3.1 (1 min.) (2018-12-8)
comment
Keywords: Unique Proof Game, Interchange (ss), Castling
Genre: Retro
Reprints: 70 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2006-1-10 more...
26 - P0002373
Alexander Kislyak
Die Schwalbe 136 08/1992
P0002373
(12+7)
BP in 15,5
1. d3 Sh6 2. Lxh6 c5 3. Lxg7 c4 4. Lxf8 c3 5. Lxe7 cxb2 6. Lxd8 0-0 7. c4 Kh8 8. c5 Tg8 9. c6 Txg2 10. c7 Txh2 11. Lh3 d5 12. Lxc8 f5 13. Lxb7 f4 14. Lxa8 f3 15. Lxd5 fxe2 16. Lf6#
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Henrik Juel: C+ by Natch 3.1 (3 min.) (2018-12-8)
comment
Keywords: Unique Proof Game, Castling
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-27 more...
27 - P0002534
Dirk Borst
Markus Ott

FIDE Kongress 37 Belfort 07/1994
2. Preis
P0002534
(13+15)
BP in 15,0
1. h4 e5 2. Th3 Df6 3. Ta3 Lxa3 4. b3 Lxc1 5. Sc3 La3 6. Db1 Lf8 7. Kd1 Ke7 8. Kc1 Kd6 9. Kb2 Kc5 10. De1 Kb4 11. Kc1 Ka3 12. Kd1 Kb2 13. Sd5 La3 14. Se7 Kxa1 15. Sxg8 Lc1
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(note: location of BK is not thematic for Belfort Theme).
Henrik Juel: C+ by Natch 3.1 (9 hours)
The two Belfort officers are wSg8 and sLc1
Here is the added feature that [Lf8] goes to c1 (to capture wLc1), then back to f8 (to make room for [Dd1] and [Ke1] to interchange, while clearing the way for [Ke8]'s march to a1), and then to c1 a second time (2018-12-9)
more ...
comment
Keywords: Unique Proof Game, Belfort
Genre: Retro
Reprints: (24) diagrammes 110 07-09/1994
(8) feenschach 114 12/1994
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2014-12-21 more...
28 - P0002795
Alexander Kislyak
32 Powerschennii Monarch 1993
P0002795
(9+13)
BP in 15,5
1. a4 Sc6 2. Ta3 Sd4 3. Tf3 Sxe2 4. Txf7 Sxc1 5. Txf8+ Kxf8 6. Lc4 De8 7. Lxg8 Txg8 8. f4 Kf7 9. Sf3 Ke6 10. 0-0 Kd5 11. c4+ Kxc4 12. Te1 Kd3 13. Te6 dxe6 14. De2+ Kxe2 15. a5 Sd3 16. Sc3#
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Henrik Juel: C+ by Natch 3.1 (57 min.)
The author made 64 proof games, all ending in Black being mated, on the 64 squares of the board
This is a neat model mate (2018-12-9)
comment
Keywords: Unique Proof Game, Castling
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-28 more...
29 - P0003038
Luigi Ceriani
4338v The Fairy Chess Review 3 28/11/1939
T. R. Dawson zum 50. Geburtstag
P0003038
(16+16)
BP in 26,0
1. h4 h5 2. Th3 Th6 3. Tc3 Te6 4. e3 Te4 5. De2 e6 6. Da6 La3 7. Lc4 De7 8. d3 Db4 9. Sd2 d6 10. Sdf3 Sd7 11. Ld2 Sdf6 12. 0-0-0 Ld7 13. Tf1 0-0-0 14. Se1 Tf8 15. Sgf3 Se8 16. Th1 Sgf6 17. Th3 Th8 18. Tg3 Th6 19. Tg5 Tg6 20. Ta5 Tg3 21. Lb5 Th3 22. Tc6 Th1 23. Sh2 Tf1 24. f3 Tf2 25. Lc3 Td2 26. Kb1 Td1#
play all play one stop play next play all
corrected version by V. Onitiu
Henrik Juel: Natch 3.1 did find a strategy, but otherwise nothing happened in more than an hour (2018-12-6)
comment
Keywords: Unique Proof Game, Castling, Capture-free
Genre: Retro
Reprints: The Fairy Chess Review 08/1940
147 La Genesi delle Posizioni 1961
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2014-5-22 more...
30 - P0003821
Pierre Gre
RA23 diagrammes 18 11-12/1975
P0003821
(6+5)
h#2
1) 1. Lf8 0-0-0 2. Lb4 Sb1#
2) 1. Kb2 0-0 2. Lc3 Tfb1#
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NN: White can't have rights to castle on both sides as his only legal last moves are with wK or wRs. (2018-11-30)
more ...
comment
Keywords: Castling (wkwg), Partial Retro Analysis (PRA)
Genre: h#, Retro
Reprints: (3) StrateGems SG19, p. 156, 07/2002
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2017-12-4 more...
31 - P0004176
Leon Loewenton
(IV) Problem 33-36 02/1956
P0004176
(9+8) cooked
BP in 16,0
1. a4 Sf6 2. a5 Sd5 3. Ta4 Sb6 4. axb6 h5 5. bxc7 h4 6. cxd8=L h3 7. Lxe7 hxg2 8. Lxf8 gxh1=L 9. Lxg7 Lg2 10. Lxh8 Lxf1 11. Le5 Lxe2 12. Lxb8 Lxd1 13. Lg3 Lxc2 14. f4 Lxb1 15. Kf2 Lg6 16. Te4+ Kf8
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Cook: NL
1. a4 h5 2. a5 Th6 3. Ta4 Tb6 4. axb6 Sf6 5. bxc7 h4 6. cxd8=L h3 7. Lxe7 hxg2 8. Lxf6 gxh1=L 9. Lxg7 Lg2 10. Lxf8 Lxf1 11. Ld6 Lxe2 12. Lxb8 Lxd1 13. Lg3 Lxc2 14. f4 Lxb1 15. Kf2 Lg6 16. Te4+ Kf8
Henrik Juel: Jacobi got nowhere in more than an hour (2018-12-6)
Mario Richter: Cook found by rawbats:
1. a4 h5 2. a5 Th6 3. Ta4 Tb6 4. axb6 Sf6 5. bxc7 h4 6. cxd8=L h3 7. Lxe7 hxg2 8. Lxf6 gxh1=L 9. Lxg7 Lg2 10. Lxf8 Lxf1 11. Ld6 Lxe2 12. Lxb8 Lxd1 13. Lg3 Lxc2 14. f4 Lxb1 15. Kf2 Lg6 16. Te4+ Kf8 (2018-12-7)
Henrik Juel: Thanks for bringing your versatile program out, Mario
I was pretty sure that this proof game must be cooked, but could not show it by my own tools (2018-12-7)
comment
Keywords: Unique Proof Game, Promotion, under-promotion (L l), Promoted material on the board (wLg3 sLg6)
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-7 more...
32 - P0004263
George A. Teodoru
(11) Problem 52-54 08/1958
Lob
P0004263
(11+10)
BP in 19,0
1. a4 Sf6 2. a5 Sd5 3. Ta4 Sb6 4. axb6 Sc6 5. bxa7 Tb8 6. axb8=S Se5 7. Sxd7 c6 8. Sxf8 Lg4 9. Sxh7 Lxe2 10. Sg5 Lxf1 11. Se4 Le2 12. Sec3 Lxd1 13. Sa2 Lxc2 14. Ke2 Lf5 15. Ke3 Th3+ 16. Kf4 Ta3 17. Kg5 Lh3 18. Tg4 Ta8 19. Sa3 Kf8
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Henrik Juel: The given solution implies that wSg1 is missing in diagram
With this added, there are lots of cooks, e.g.
1.Sb1-c3 Sb8-c6 2.Ba2-a4 Ta8-b8 3.Ba4-a5 Sg8-f6
4.Ta1-a4 Sf6-d5 5.Sc3-a2 Sd5-b6 6.Ba5xb6 Bd7-d5
7.Bb6xa7 Bd5-d4 8.Ba7-a8=S Bd4-d3 9.Sa8-b6 Bd3xe2
10.Sb6-c4 Be2xf1=S 11.Ke1-e2 Tb8-a8 12.Ke2-f3 Sc6-e5
13.Kf3-f4 Sf1-e3 14.Kf4-g5 Bh7-h5 15.Dd1xh5 Se3xc2
16.Dh5xh8 Sc2-a3 17.Dh8xf8 Ke8xf8 18.Sc4xa3 Lc8-h3
19.Ta4-g4 Bc7-c6
With the given diagram position, the problem is also badly cooked (2018-12-6)
comment
Keywords: Unique Proof Game, Interchange
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2006-1-10 more...
33 - P0004367
Andrey Frolkin
560 Europe Echecs 403 07-08/1992
P0004367
(10+12)
KBP
a) Weiß am Zug
b) Schwarz am Zug
a) 1. e4 h5 2. Dxh5 Txh5 3. h3 Txh3 4. a3 Txa3 5. Txa3 a6 6. Txa6 Sf6 7. Txf6 gxf6 8. Th6 Lxh6 9. d3 Lxc1
b) 1. d3 h6 2. Lxh6 Txh6 3. h4 Txh4 4. a4 Txa4 5. Txa4 a6 6. Txa6 Sf6 7. Txf6 gxf6 8. Th6 Lxh6 9. Dc1 Lxc1 10. e4
play all play one stop play next play all
paul: Dual: a) 6.- Sh6! 7.Tf6 gxf6 8.Txh6 Lxh6 9.d3 Lxc1. (2010-7-30)
Henrik Juel: Part b) is also ruined, by the same dual (2018-12-9)
Henrik Juel: ... almost the same, namely
6... Sh6 7.Tf6 gxf6 8.Txh6 Lxh6 9.Dc1 Lxc1 10.e4 (2018-12-9)
comment
Keywords: Unique Proof Game
Genre: Retro
Reprints: (12) diagrammes 15 07-09/1994
Input: Gerd Wilts, 1995-6-3
Last update: A.Buchanan, 2015-4-3 more...
34 - P0004845
Dmitri W. Pronkin
4833v Die Schwalbe 1984
1. Preis
P0004845
(14+1)
BP in 26,5
1. Sh3 g5 2. Sf4 gxf4 3. Sa3 f3 4. gxf3 Sf6 5. Lg2 Se4 6. fxe4 d5 7. exd5 Sc6 8. dxc6 Dd3 9. exd3 h5 10. Dg4 hxg4 11. cxb7 g3 12. hxg3 f5 13. Th2 f4 14. gxf4 e5 15. fxe5 Ld6 16. exd6 Th3 17. dxc7 Te3+ 18. fxe3 a5 19. Kf2 Ta6 20. Kg3 Tc6 21. Kh4 Tc3 22. dxc3 Le6 23. Ld2 Lb3 24. cxb3 a4 25. bxa4 Kf7 26. Ld5+ Kg6 27. Lf7+
play all play one stop play next play all
Henrik Juel: Mario, can your rawbats test this one? (2018-12-9)
comment
Keywords: Unique Proof Game, Massacre PG
Genre: Retro
Reprints: 118 Shortest Proof Games 11/1991
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2005-12-28 more...
35 - P0005301
Ludwig Zagler
3673 Problemkiste 98 04/1995
P0005301
(1+2)
-1(w+s), dann h#1
Anticirce
R: 1. Ka7-a8 Lc7xDe5[+sLf8], dann 1. Kd8 De8#
play all play one stop play next play all
Gerald Ettl: Wichtig Typ Calvet. Nicht schlecht. (2009-2-10)
Alfred Pfeiffer: Beim Typ Calvet sind Schläge auf das eigene Wiedergeburtsfeld erlaubt. Wäre deshalb hier nicht der Typ Cheylan zu fordern, um 2. Kxe8 auszuschließen ? (2018-12-6)
Henrik Juel: You are right, Alfred (2018-12-7)
Gerald Ettl: ja das stimmt. (2018-12-7)
comment
Keywords: Circe (Anti-), Help retractor, Aristocrat, Rex solus (w)
Genre: Retro, Fairies
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-6 more...
36 - P0005325
Michel Caillaud
13 Rex Multiplex 1 01-03/1982
3. ehrende Erwähung
P0005325
(12+8)
#2
b) wKa4 nach a3
a) 1. Dd6? Th4!
1. Sc6! droht 2. Dd8# (1. ... 0-0?? illegal)

b) 1. Sc6? 0-0!
1. Dd6! droht 2. Lb5#
R: 1. g6-g5 Kb3xBa3 2. h7xTg6 Kc3xBb3 3. a4-a3 Kd3xBc3 4. a5-a4 Ke3xBd3 5. a6-a5 Dd5-d4 6. b4-b3 Dg2-d5 7. b5-b4 Df1-g2 8. b6-b5 Dd1-f1 9. b7-b6 Kf3-e3 10. d4-d3 Kg2-f3 11. d5-d4 Kf1-g2 12. d6-d5 Ld5-c4 13. c4-c3 Ke1-f1 14. c5-c4 Lg2-d5 15. c6-c5 Lf1-g2 16. c7-c6 g2-g3 17. Sg3-h1
play all play one stop play next play all
In a) fehlt ein Tempo zur Auflösung.
Schlagfälle: hxgxfxexd, e7xf6, h7xg6, wLc1, wTa1 auf a1, b1 oder c1.
Renny Bosch: The answer given as "a) 1. Sc3 0. 0?" was probably intended to be "a) 1. Sc6 0-0 2. ?", implying that in a) B may still have castling rights. But regardless of B's castling right, 1. Qd6 ... 2. Bb5# works in either case. Clearly there must be a reason why that is impossible in one of the two cases.

Most likely there is a misprint in the given position: wBc4 should be at b3. Then 1. Qd6 ... 2. Bc4# works in b) but not in a). And in a), the retro play shows that B can no longer castle, because he has to make a move after wKa4.

Also, the retro play as given leads to an initial position which is illegal, because with bPs at c7, d6, f6 and g7, the wB created on d8 would not be able to get out. And if the bPd6 were still at d7, then the bBc8 would not have been able to get captured by the wPh2. So bPb7 must already be at b6.

Here is a PG for a) that preserves B's castling right as long as possible, but in the end must lose it, leading to the #2.

1. Nc3 Nf6 2. Nb5 Ng4 3. h3 a6 4. hxg4 b6 5. Rh6 Bb7 6. Rf6 Be4 7. Nf3 Bf5 8. gxf5 exf6 9. Nh4 Qe7 10. Ng6 Qe6 11. fxe6 Nc6 12. e7 Rd8 13. exd8=B Bd6 14. Be7 Bh2 15. Bd6 Bg1 16. Bh2 Nd4 17. Na7 Nb3 18. Nb5 Nxa1 19. Na7 Nb3 20. Nb5 Nxc1 21. Na7 Nb3 22. Nb5 Nd4 23. Na7 Nf5 24. Nb5 Ng3 25. Na7 Nh1 26. g3 d6 27. Bh3 d5 28. Be6 d4 29. Kf1 d3 30. Kg2 c6 31. Kf3 c5 32. Ke3 c4 33. Qf1 c3 34. Qg2 b5 35. Qe4 b4 36. Qd4 b3 37. Kxd3 a5 38. Kxc3 a4 39. Kb4 a3 40. Kxa3 hxg6 41. Bxb3 g5 42. Kb4 Rg8 43. Ka4 Rh8 {the given position} 44. Nc6 Rg8 45. Qd8# (2008-5-16)
Michel Caillaud: in a), 1.Qd6? ~ 2.Lb5# doesn't work because of 1...Rh4! (2008-5-19)
Henrik Juel: Typos in the solution for part a)
Here are the correct solutions and tries:
a) 1.Sc6 thr. 2.Dd8# (1... 0-0?? is illegal), not 1.Dd6? Th4!
b) 1.Dd6 thr. 2.Lb5#, not 1.Sc6? 0-0!

Very elegant twinning (2018-12-4)
Henrik Juel: Thanks for your update, Alfred
There still are errors in the given retroplay
The black b-pawn should retract to b6 only, and the d-pawn all the way to d7
Then e7xTd8=L can be retracted, and [Lc8] is not locked out (2018-12-4)
comment
Keywords: Castling, Promotion
Genre: Retro
Reprints: B 64 Proof Games 2012
Input: Gerd Wilts, 1995-6-3
Last update: Alfred Pfeiffer, 2018-12-4 more...
37 - P0005393
Alexander Kislyak
38 Shakhmatnaya Kompozitsiya 04/1993
P0005393
(11+13)
BP in 16,0
1. e4 a5 2. De2 Ta6 3. Dxa6 a4 4. Dg6 hxg6 5. h3 Txh3 6. e5 Ta3 7. e6 Txa2 8. exd7+ Lxd7 9. Th3 e6 10. Ta3 Lb4 11. Sf3 Lc3 12. dxc3 Df6 13. Lg5 Se7 14. Lh4 g5 15. c4 Dg6 16. Sc3 Txa1+
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (1 hour 40 min.) (2018-12-9)
comment
Keywords: Unique Proof Game
Genre: Retro
Input: Gerd Wilts, 1995-6-3
Last update: Gerd Wilts, 2006-1-10 more...
38 - P0005787
Andrey Frolkin
Leonid Lyubashevsky

Zaporizka pravda 1988
Spezialpreis
P0005787
(26+0)
Färbe die Steine!
KBP?
1. Sa3 d5 2. Sc4 Lg4 3. Se5 Lf3 4. Sg6 hxg6 5. gxf3 Th3 6. f4 Tg3 7. Lh3 c6 8. Lc8 e6 9. hxg3 Lb4 10. Th8 Lc3 11. bxc3 Ke7 12. La3+ Kf6 13. Db1 Sh6 14. Db6 axb6 15. Lf8 Ta3 16. Sh3 Tb3 17. axb3 Dd6 18. Ta8 Sa6
play all play one stop play next play all
Henrik Juel: The fastest pawn captures are a2xb3, b2xc3, g2xf3, h2xg3, and a7xb6, h7xg6
Surprisingly, in the intended coloring, the four men on row 8 are white; the rest is 'normal' (2018-12-9)
Henrik Juel: The colored position is C+ by Natch 3.1 (1 sec.)
No solution in 17.5 or 17.0 moves (2018-12-9)
comment
Keywords: Unique Proof Game, Coloring problem
Genre: Retro
Reprints: 586 Ukrainisches Album 1986-1990
(4) Die Schwalbe 144 12/1993
Input: Gerd Wilts, 1995-6-7
Last update: Gerd Wilts, 2005-12-27 more...
39 - P0005845
Unto Heinonen
U.S. Problem Bulletin 1993
1. Preis
P0005845
(16+16)
BP in 21,5
1. d4 h5 2. Lh6 Sf6 3. f4 Se4 4. Sf3 Sd2 5. e4 a5 6. La6 e5 7. c4 Lb4 8. Da4 c5 9. Dc6 b5 10. Lb7 Ta6 11. a4 Tb6 12. Sa3 Sa6 13. 0-0-0 Sf1 14. Td3 Le1 15. b4 Dh4 16. Tb3 Df2 17. h4 Kd8 18. Th3 d5 19. Tg3 Lh3 20. Tg6 f5 21. Tf6 g5 22. g4
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (1 min.) (2018-12-9)
comment
Keywords: Unique Proof Game, Castling, Ornament, Capture-free
Genre: Retro
Reprints: feenschach 121 11/1996
H28 FIDE Album 1992-1994 2001
feenschach 141 06/2001
Input: Gerd Wilts, 1995-6-20
Last update: A.Buchanan, 2014-5-23 more...
40 - P0005880
Michel Caillaud
R222v The Problemist 01/1994
Ladislav Packa gewidmet
P0005880
(12+14)
BP in 29,0
1. h4 a5 2. h5 a4 3. h6 a3 4. hxg7 axb2 5. Th6 bxa1=T 6. Tc6 h5 7. Sh3 h4 8. Sf4 h3 9. Sd5 h2 10. f4 h1=T 11. Kf2 Txf1 12. Kg3 Thh1 13. a4 Sh6 14. g8=L dxc6 15. Lh7 Sd7 16. Lf5 Sb6 17. Lh3 Lf5 18. a5 e6 19. a6 Lc5 20. a7 Le3 21. dxe3 Dd6 22. Dd3 Kd7 23. Ld2 Th8 24. a8=D Lh7 25. Dg8 Ta8 26. Dgg6 Kc8 27. La5 Kb8 28. Sbc3 Ta1 29. Kh4 Dd8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (21 min.)
A fantastic idea: By move 10 Black has promoted on a1,h1, so he has rooks in all four corners; during the next 18 moves the rooks interchange cyclically clockwise, motivated by the need for white to play a8=D-g8-g6
This leaves an ugly promoted wD on the board, whereas the promoted wLh3 is more discrete; maybe the author had a8=T in the first version, which was then cooked (2018-12-9)
comment
Keywords: Unique Proof Game, Non-standard material, Interchange (tttt)
Genre: Retro
Reprints: H32 FIDE Album 1992-1994 2001
(1) Quartz 18 10-12/2002
Input: Gerd Wilts, 1995-6-26
Last update: Gerd Wilts, 2006-1-11 more...
41 - P0005881
Yukio Hirose
Tume-Shogi Paradise 10/1994
P0005881
(12+16)
BP in 29,5
1. d4 f5 2. Lh6 gxh6 3. g4 Lg7 4. g5 Lf6 5. g6 Lh4 6. g7 Sf6 7. g8=T+ Kf7 8. Tg4 Tg8 9. Te4 Tg3 10. f4 fxe4 11. f5 Sd5 12. f6 Kg6 13. f7 Dh8 14. f8=S+ Kg5 15. Se6+ dxe6 16. b4 Ld7 17. b5 Sb4 18. b6 Lb5 19. d5 S8c6 20. d6 Tf8 21. d7 Tf2 22. d8=D Ta3 23. e3 Le2 24. D8d3 Db2 25. Da6 bxa6 26. b7 Sd4 27. b8=L c6 28. Lg3 Tg2 29. Lf2
play all play one stop play next play all
Henrik Juel: Diagram error: sKg5, not g6
Then C+ by Natch 3.1 (3 min.) (2018-12-9)
comment
Keywords: Allumwandlung, Ceriani-Frolkin Theme (DTS), Unique Proof Game
Genre: Retro
Reprints: The Problemist 01/1995
Input: Gerd Wilts, 1995-6-26
Last update: Gerd Wilts, 2005-12-28 more...
42 - P0005887
Valentin Balanovsky
4607 Mat (Belgrad) 07-08/1985
P0005887
(15+12) cooked
BP in 17,0
1. a4 h5 2. Ta3 h4 3. Tg3 hxg3 4. h4 Th6 5. h5 Tf6 6. h6 Tf3 7. h7 Sf6 8. Th6 Sh5 9. c4 f6 10. Db3 Kf7 11. Dxb7 Ke6 12. Dxc8 Kd6 13. Dxd8 Kc6 14. Dxf8 Kb7 15. Df7 Kc8 16. c5 Kd8 17. Da2 Ke8
play all play one stop play next play all
Cook: 1. c4 h6 2. Db3 h5 3. Dxb7 Th6 4. Dxc8 Tb6 5. c5 h4 6. a4 Sf6 7. Ta3 Sd5 8. Tg3 hxg3 9. h4 f6 10. Dxd8 Kf7 11. Dxf8 Kg6 12. Dg8 Sf4 13. Da2 Tb3 14. h5 Kf7 15. h6 Ke8 16. h7 Tf3 17. Th6 Sh5
Autorangabe: V. Z. Balanovskij SSSR,
Forderung: "Shortest game?" (kein Zusatz "2 Lösungen", und die mit 1. c4 beginnende BP ist explizit als NL gekennzeichnet).
Henrik Juel: Natch 3.1 found thousands of solutions, so badly cooked, regardless of the number of solutions stipulated (unless this number is 8605, but that would be silly) (2018-12-6)
comment
Keywords: Unique Proof Game, Pure Round Trip (k)
Genre: Retro
Input: Gerd Wilts, 1995-6-26
Last update: Mario Richter, 2018-12-7 more...
43 - P0005903
Jasper van Atten
R195 The Problemist 09/1993
P0005903
(14+15)
BP in 20,0
1. d3 a5 2. Le3 Ta6 3. La7 h5 4. e3 h4 5. Dh5 Tah6 6. Le2 T6h7 7. Dh6 b6 8. Lh5 Lb7 9. Ke2 La6 10. Kf3 a4 11. Se2 a3 12. Sxa3 h3 13. Tag1 hxg2 14. Sc1 gxh1=S 15. Tg4 Sf6 16. Tb4 Tg8 17. Sc4 Thh8 18. a3 Sh7 19. Ke4 Lc8 20. f3 Sa6
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (7 sec.) (2018-12-9)
comment
Keywords: Unique Proof Game, Loss of tempo (l3), Promotion
Genre: Retro
Input: Gerd Wilts, 1995-6-26
Last update: Gerd Wilts, 2006-1-11 more...
44 - P0005936
Nikita M. Plaksin
2999 feenschach 49 01-03/1980
2. Lob
P0005936
(11+14)
BP in 28,0
1. h4 a5 2. h5 a4 3. h6 Ta5 4. hxg7 h5 5. g4 Sh6 6. g8=L! Lg7 7. g5 Sc6 8. g6 Tg5 9. Th2 Le5 10. g7 f6 11. Lb3 axb3! 12. g8=L! b5 13. Lc4 d5 14. a4 dxc4! 15. a5 Dd3 16. a6 Dg3 17. e3 Sb4 18. Le2 Sa2 19. Kf1 Sxc1 20. f4 Sa2 21. fxg5 Lb7 22. g6 Lh1 23. g7 c3 24. g8=L! h4 25. Lc4 bxc4! 26. a7 Sg8 27. a8=L! h3 28. Lg2 hxg2!
play all play one stop play next play all
Henrik Juel: The moves edified by an exclamation mark are not particularly good or surprising
The marks just highlight the four white promotions to L and the black pawn captures getting rid of them (2018-12-6)
Henrik Juel: Many cooks, e.g.
1.Bg2-g4 Sb8-c6 2.Bh2-h4 Ba7-a5 3.Bh4-h5 Ba5-a4
4.Bh5-h6 Ta8-a5 5.Bh6xg7 Bh7-h5 6.Bg4-g5 Sg8-h6
7.Bg5-g6 Ta5-g5 8.Bg7-g8=L Lf8-g7 9.Th1-h2 Lg7-e5
10.Bg6-g7 Bf7-f6 11.Lg8-b3 Sc6-b4 12.Bg7-g8=L Ba4xb3
13.Ba2-a4 Sb4-a2 14.Lg8-c4 Bd7-d5 15.Ba4-a5 Bd5xc4
16.Ba5-a6 Dd8-d3 17.Ba6-a7 Dd3-g3 18.Be2-e3 Sa2xc1
19.Lf1-e2 Sc1-a2 20.Ke1-f1 Bb7-b5 21.Bf2-f4 Lc8-b7
22.Bf4xg5 Lb7-h1 23.Bg5-g6 Bc4-c3 24.Bg6-g7 Bh5-h4
25.Bg7-g8=L Bh4-h3 26.Lg8-c4 Sh6-g8 27.Ba7-a8=L Bb5xc4
28.La8-g2 Bh3xg2 (2018-12-6)
comment
Keywords: Unique Proof Game, Ceriani-Frolkin Theme
Genre: Retro
Input: Gerd Wilts, 1995-6-26
Last update: A.Buchanan, 2012-4-8 more...
45 - P0005946
Yis Yoront
5508 feenschach 91 05-08/1989
P0005946
(16+15)
Kürzeste BP, dann #1 (wer?)
1. h4 g5 2. hxg5 d6 3. Th4 Lh3 4. g4 Dd7 5. Lg2 Db5 6. Lc6+ Sd7 7. e4 0-0-0 8. Df3 Kb8 9. Db3 Dd3 10. Dxb7#
play all play one stop play next play all
FJS: "Einfaches Auszählen ergibt, daß beide Parteien schon mindestens 9 Züge gemacht haben. Eine 9-zügige Beweispartie ist leicht zu finden: "1.h4 g5 2.hxg5 d6 3.Th4 Lh3 4.g4 Dd7 5.Lg2 Db5 6.Lc6+ Sd7 7.e4 000 8.Df3 Kb8 9.Db3 Dd3, also ist Weiß am Zug: 10.Dxb7#
JV: "Ich würde sagen: Das ist eine Aufgabe für Retro-Unerfahrene." Retro für alle, wie GL das in der Schwalbe nennt. [2,6/II]
Henrik Juel: C+ by Natch 3.1 (2018-12-9)
comment
Keywords: Unique Proof Game, Castling
Genre: Retro
Input: Gerd Wilts, 1995-6-26
Last update: Alfred Pfeiffer, 2015-5-27 more...
46 - P0005949
Andrey Frolkin
Gerd Wilts
Alexander Kislyak

unveröffentlicht?
P0005949
(11+13)
a) BP in 15,5
b) -4 Züge, dann BP in 13,0
a) 1. a4 h5 2. a5 Th6 3. a6 Txa6 4. Txa6 bxa6 5. b4 Lb7 6. b5 Le4 7. b6 Lh7 8. e4 cxb6 9. Lxa6 Dc7 10. De2 Dxh2 11. Df1 Dxg1 12. Dxg1 f5 13. Df1 Kf7 14. Db5 Kg6 15. 0-0 Kh6 16. d3+
b) 1. a4 h5 2. a5 Th6 3. a6 Txa6 4. Txa6 bxa6 5. b4 Lb7 6. b5 Le4 7. b6 Lh7 8. e4 cxb6 9. Lxa6 Dc7 10. De2 Dxh2 11. Db5 Dxg1 12. Txg1 f5 13. Th1 Kf7
play all play one stop play next play all
Henrik Juel: Paradoxical twins
a) needs 31 single moves, but the position obtained after 27 single moves can be reached from the initial array in just 26 single moves, as shown in b)
There is no real paradox of course, in a) you must use an extra white move to preserve the castling right
Gerd may know the reason for not publishing, maybe it is because the first 20 single moves are identical in the twins (2018-12-6)
comment
Keywords: Unique Proof Game, Castling
Genre: Retro
Input: Gerd Wilts, 1995-6-26
Last update: Gerd Wilts, 2004-8-11 more...
47 - P0006245
Peter Wong
2024 Phénix 31 07/1995
1. Preis
P0006245
(12+15)
BP in 27,5
1. Sf3 a6 2. Sd4 Ta7! 3. Sb5 axb5 4. f3! Ta3 5. bxa3 Sc6 6. Lb2 Sa5 7. Le5 Sc4 8. Ld6 cxd6 9. c3 Da5 10. Dc2 Da4 11. Dg6 Dc2 12. Dh6 gxh6 13. f4 Lg7 14. f5 Ld4 15. f6 Sxf6 16. h3! Tg8 17. h4 Tg3 18. h5 Th3 19. g3! La7 20. Lg2 b6 21. La8 Lb7 22. 0-0 Lg2 23. Lf3 Se4 24. g4 f6 25. g5 Kf7 26. g6 Ke6 27. g7 Kd5 28. g8=S
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (2 min.) (2018-12-9)
more ...
comment
Keywords: Bahnung, Räumung, Unique Proof Game, Castling, Loss of tempo (t1), Promotion
Genre: Retro
Reprints: 3402 U.S. Problem Bulletin 102/103 07-10/1995
H17 FIDE Album Annexe 1995-1997 2004
(66) Parallel Strategy 2004
Input: Gerd Wilts, 1995-8-17
Last update: Alfred Pfeiffer, 2014-3-26 more...
48 - P0006428
Andrey Frolkin
9133v Die Schwalbe 157, p. 283, 02/1996
P0006428
(13+12)
BP in 20,0
May White castle?
Weiß darf noch rochieren: 1. h4 Sa6 2. h5 Sc5 3. h6 a6 4. hxg7 h5 5. f4 h4 6. f5 h3 7. f6 h2 8. fxe7 Sf6 9. g8=L Lh6 10. Lxf7 Kxf7 11. e8=T Kg6 12. Te6 Dg8 13. Tc6 Db3 14. axb3 dxc6 15. Ta4 Lh3 16. Te4 Tag8 17. Te8 hxg1=D 18. e4 Dd4 19. Lc4 Tg7 20. Lg8 Dd8
Ohne die Bedingung, daß Weiß rochieren darf, gibt es andere BPs: 1. f4 Sa6 2. f5 Sc5 3. f6 a6 4. fxe7 f5 5. e4 f4 6. Lb5 f3 7. Lc6 f2+ 8. Ke2 fxg1=D 9. h4 dxc6 10. h5 Lf5 11. h6 Sf6 12. hxg7 Dd5 13. g8=L Db3 14. Lxh7 Kf7 15. axb3 Lh6 16. Ta4 Tag8 17. Td4 Dxd4 18. e8=T Tg7 19. Lg8+ Kg6 20. Ke1 Dd8
play all play one stop play next play all
SH: Cooked?:
1. e4 f5 2. Ne2 f4 3. h4 f3 4. h5 fxe2 5. f4 exf1B 6. f5 Bc4 7. f6 Bb3 8. axb3 Na6 9. fxe7 Nc5 10. Ra6 Nf6 11. Rc6 dxc6 12. h6 Bh3 13. hxg7 Qd7 14. g8B Bh6 15. Bxh7 Kf7 16. Qf3 Rag8 17. Qe2 Rg7 18. Bg8+ Kg6 19. Qd1 a6 20. e8R Qd8 (2005-6-20)
Henrik Juel: The stipulation question was probably intended as an implicit condition; when answered affirmatively, there should be a unique solution
But SH's solution shows that the problem is cooked (2018-12-9)
comment
Keywords: Anti-Pronkin Theme, Conditional problem, Unique Proof Game, Castling in the forward play
Genre: Retro
Input: Gerd Wilts, 1996-6-12
Last update: Gerd Wilts, 2004-8-11 more...
49 - P0006438
Andrey Frolkin
9191 Die Schwalbe 158, p. 343, 04/1996
Werner Keym gewidmet
2. ehrende Erwähnung Abt. II
P0006438
(15+15)
KBP?
UWF sind in der Diagrammstellung 1) zulässig, 2) nicht zulässig
1) 1. h4 h5 2. Th3 Th6 3. Te3 Tc6 4. Te6 dxe6 5. a4 Dd5 6. a5 Kd7 7. a6 Kd6 8. axb7 a5 9. Sh3 Sa6 10. b8=T a4 11. Tb7 Tb8 12. Ta7 Lb7
2) 1. a4 h5 2. a5 Th6 3. a6 Tc6 4. axb7 a5 5. h4 Sa6 6. b8=D a4 7. Db3 Tb8 8. De6 dxe6 9. Th3 Dd5 10. Tb3 Kd7 11. Tb7 Kd6 12. Ta7 Lb7 13. Sh3
play all play one stop play next play all
Henrik Juel: Part 1) is C+ by Natch 3.1 (2018-12-9)
comment
Keywords: Ceriani-Frolkin Theme (D), Unique Proof Game, Promotion
Genre: Retro
Input: Gerd Wilts, 1996-6-12
Last update: Gerd Wilts, 2006-11-2 more...
50 - P0006626
Andrey Frolkin
(56v) Die Schwalbe 159, p. 362, 06/1996
1. ehrende Erwähnung Ceriani-Gedenkturnier, 1. Abteilung
P0006626
(13+12)
BP in 20,0
(21. 0-0 is possible)
1. h4 Sa6 2. h5 Sc5 3. h6 a6 4. hxg7 h5 5. f4 h4 6. f5 h3 7. f6 h2 8. fxe7 Sf6 9. g8=L Lg7 10. Lxf7 Kxf7 11. e8=T Kg6 12. Te6 Dg8 13. Tc6 Db3 14. axb3 dxc6 15. Ta4 Lg4 16. Te4 Taf8 17. Te8 hxg1=D 18. e4 Dd4 19. Lc4 Dd8 20. Lg8 Tf7
play all play one stop play next play all
Henrik Juel: Seems to be cooked by
1. e4 f5 2. Ne2 f4 3. h4 f3 4. h5 fxe2 5. f4 exf1=B 6. f5 Bc4 7. f6 Bb3 8. axb3 Na6 9. fxe7 Nc5 10. Ra6 Nf6 11. Rc6 dxc6 12. h6 Bh3 13. hxg7 Qd7 14. g8=B Bg7 15. Bxh7 Kf7 16. Qf3 Raf8 17. Bg8+ Kg6 18. Qe2 Rf7 19. Qd1 a6 20. e8R Qd8 (2018-12-9)
comment
Keywords: Unique Proof Game, Castling
Genre: Retro
Input: Gerd Wilts, 1996-7-11
Last update: Gerd Wilts, 2004-8-11 more...
51 - P0007032
Henrik Juel
3000 Probleemblad 05/1996
P0007032
(15+16)
BP in 19,0
1. c3 h5 2. Dc2 Th6 3. Dh7 f5 4. Kd1 Kf7 5. Kc2 Ke6 6. Kd3 Kd5 7. Ke3 Kc4 8. a3 Kb3 9. Sh3 Kc2 10. Sf4 Kd1 11. h3 Ke1 12. Th2 Kxf1 13. Kf3 Ke1 14. Kg3 Kd1 15. Th1+ Kc2 16. Kh2 Td6 17. Kg1 Td5 18. Kf1 d6 19. Ke1 Le6
play all play one stop play next play all
Henrik Juel: C+ by Jacobi using the constraints
Ke8-c2-d1-e1xf1-e1-d1-c2 Ke1-d1-c2-d3-g3-h2-g1-f1-e1
which are valid, because [Ke8] is the only black man who could capture [Lf1] in time, so [Ke1] would have to get out via c2-d3 and back home via g3-h2
It is recommended that HC+ is used, but this is not available on the PDB (yet)
Ke1 made a round trip (which is stronger than a promenade) (2018-12-9)
comment
Keywords: Unique Proof Game, Promenade (Kk)
Genre: Retro
Reprints: Ex2 64 Proof Games 2012
Input: Gerd Wilts, 1996-8-12
Last update: Gerd Wilts, 2012-12-28 more...
52 - P0008429
Peter Wong
U.S. Problem Bulletin 102/103 07-10/1995
P0008429
(12+14)
BP in 22,5
1. Sf3 a6 2. Sd4 Ta7 3. Sb5 axb5 4. h3 Ta3 5. bxa3 Sa6 6. Lb2 Sc5 7. Lf6 gxf6 8. c3 Lh6 9. Db3 Lg5 10. De6 dxe6 11. h4 Dd3 12. hxg5 Dc2 13. g6 hxg6 14. f3 Th3 15. f4 Td3 16. g3 Kd7 17. Lh3 Kc6 18. Lg2+ Kb6 19. Lc6 Se4 20. Le8 Ld7 21. 0-0 Lc6 22. Ld7 Ld5 23. Lc8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1 (12 sec.) (2018-12-10)
comment
Keywords: Unique Proof Game, Castling, Loss of tempo (tBL)
Genre: Retro
Input: Gerd Wilts, 1996-9-18
Last update: Mario Richter, 2009-11-15 more...
53 - P0501285
Jan Hartong
Demetrio Gussopulo

11393 feenschach 06/1978
P0501285
(3+5) C+
h#3
1. Tf3 Th5 2. Kf4 Lh3 3. Te3 Tf5#
play all play one stop play next play all
Alfred Pfeiffer: Aufgabe nicht gefunden. Eine Quelle "11393 feenschach 06/1978" gibt es nicht. (2018-12-3)
comment
Keywords: Interchange (TLkt)
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: hpr, 1996-6-14
Last update: Alfred Pfeiffer, 2018-12-3 more...
54 - P0502176
John Niemann
789 Schachmatt 60 25/12/1947
P0502176
(3+3)
h#4
Wieviele Lösungen?

275 Lösungen (genaue Angaben siehe Blatt 89, 27. VI.1948) .
Popeye findet 277 Lösungen: klären
Anton Baumann: Alybadix und Gustav 4.0e finden ebenfalls 277 Lösungen:
1.Sh3: 20 1.Se4: 94 1.Sf7: 76 1.Sh7: 87 total = 277 (2018-11-24)
comment

Genre: h#
Input: hpr, 1996-7-23
Last update: Alfred Pfeiffer, 2018-11-24 more...
55 - P0523005
A. Faisant
2890 Themes-64 04-06/1975
P0523005
(2+3) C+
h#5
1. e1=S Ke8 2. Sf3 Le7 3. Sg5 Lf8 4. Sh7 Kf7 5. f5 Lg7#
1. ... Kxf6? 2. Sf3 Le7 3. Sg5 Lf8 4. Sh7 Kf7 5. ?? Lg7# Black has no a tempo-move!
play all play one stop play next play all
Alexej Oganesjan: Additional try: 1...Kxf6? 2.Sf3 Le7 3.Sg5 Lf8 4.Sh7 Kf7 5.?? Lg7# - Black has no a tempo-move! (2018-11-19)
comment
Keywords: tempo play (Kb), Umwandlung im Schlüsselzug, under-promotion (s)
Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Input: Markus Manhart, 1998-2-10
Last update: Alfred Pfeiffer, 2018-11-19 more...
56 - P0536116
Roland Baier
Bernd Ellinghoven
Hans Gruber
Hans Peter Rehm
Kjell Widlert

WCCC Belfort 07/1994
3. Preis
Schnellturnier h#2
P0536116
(5+16) C+
h#2
b) Tausch wTa6<->sTg6
a) 1. Tc7+ Dc6 2. Sd7 Df3#
b) 1. Tc2+ Dd7 2. Sc6 Dxd3#
play all play one stop play next play all
Sally: Thema :
Verzicht auf Fesselung einer schwarzen Figur.
"Diese ambitiöse Darstellung bedurfte die die Mitwirkung von fünf Personen und einer Flasche Longrow; eines der seltensten Single Malt Scotch Whiskys".
Zu bewundern ist nicht zuletzt die "Nachtwächter - vermeidende Zwillingsbildung". (2018-12-5)
comment

Genre: h#
Computer test: Popeye C-Version 3.52 (2048 KB)
Reprints: 3 Die Schwalbe 149, p. 536, 10/1994
E92 FIDE Album 1992-1994 2001
Input: Michal Dragoun, 1998-4-6
Last update: Alfred Pfeiffer, 2018-6-21 more...
57 - P0577704
Josef Kupper
Rolf Wiehagen

14340v Schach , p. 88, 01/2000
P0577704
(4+7) C+
h#4
2.1...
1) 1. La8 Lb7 2. Tf3 Lc8 3. Db3 Se2 4. Ld5 La6#
2) 1. Lc6 Le4 2. Tf3 Lf5 3. Dd3 Se2 4. Lb5 Le6#
play all play one stop play next play all
Sally: Unter Beibehaltung der Mustermatts wird hier schwarzweiße Bahnung einheitlich in beiden Lösungen gezeigt. Das Ganze ökonomisch mit nur elf Steinen und schlagfrei. (2018-12-6)
comment

Genre: h#
Computer test: (Popeye WIN32-Version 3.64 (2048 KB))
Input: hpr, 2000-11-19
Last update: hpr, 2000-11-19 more...
58 - P0582073
Sergey Radchenko
9214 Ideal-Mate Review 07-09/1998
P0582073
(4+1) C+
h#2
2.1...
1) 1. Kg3 0-0 2. Kxh3 Tf3#
2) 1. Kg2 Ke2 2. Kg3 Tg4#
play all play one stop play next play all
Mario Richter: vgl. mit P0533984 (2018-11-15)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit-Version 3.65 (2048 KB))
Input: hpr, 2001-3-18
Last update: hpr, 2001-3-18 more...
59 - P0584458
A. Solovej
1649 Shakhmatnaya Kompozitsiya 1999
4. Lob
P0584458
(2+15) C+
h#6
0.1...
b) sDd3 nach f7
a) 1. ... exd3 2. Kd4 dxc4 3. Kc5 cxd5 4. Kb6 dxc6 5. Kc7 cxb7 6. Kd8 b8=D#
b) 1. ... exf3 2. Kf4 fxe4 3. Kg5 exd5 4. Kh6 dxe6 5. Kg7 exf7 6. Kh8 f8=D#
play all play one stop play next play all
klären Autor
: Autor: A. Solowej (2006-11-22)
Alfred Pfeiffer: No.1649 in SK 32, 11/1999, ist eine andere Aufgabe (#2) von anderen Autoren. (2018-11-28)
comment
Keywords: Promoted material on the board (sLd5)
Genre: h#
Computer test: Popeye WINDOWS-32Bit-Version 3.70 (2048 KB)
Input: hpr, 2001-8-17
Last update: Alfred Pfeiffer, 2018-11-28 more...
60 - P1003879
Michel Caillaud
StrateGems 2001
1. Preis ex aequo
Volet 50 JT
P1003879
(11+7)
Weg des wBg2?
Henrik Juel: wPb7 is orig. Pg2. The NE corner can release only by -1.Kh5 g7, and the SW corner can release only by -9.d2xc3 (after wL uncaptured on g5 has been brought home), so sLa3 is orig. Pc7 promoted on g1 after f3xg2 (not f4xg3, because the lightsquared wL was captured by the sP). Wonderful lightweight. (2004-4-26)
Henrik Juel: Theoretically, the NE corner could also be opened by retracting f6xg5, later Kg5-h6 and the uncheck g7xf6, so sLa3 is promoted on g1 no matter what; but g7xf6xg5 would require too many black captures (thus the somewhat unsightly Sd8 makes the NE opening unique) (2018-11-30)
comment
Keywords: Volet Pawn, Phoenix
Genre: Retro
Reprints: feenschach 141 06/2001
Input: Gerd Wilts, 2002-3-24
Last update: TBr, 2018-3-23 more...
61 - P1010188
Theodor Steudel
4461 Problem 206-210 07/1981
P1010188
(15+2)
r#106
Published in issue 206-210. Solution never published !
Keyword=Solution Unknown !
Gerald Ettl: steht der wSa4 wirklich auf dem Brett?
1.Sc3 Kg6 2.Df5+ Kf7 3.Dh5+ Kg8 4.Dd5+ Kh7 5.Sb1 9.Sd2 13.Sf3 17.Sg1 Kg6 18.Lg2 Sf2# (2018-12-6)
Gerald Ettl: 1.Sc5 5.Kg2 9.Kf3 13.Ke3 17.Kd2 21.Kc3 25.Kb4 29.K5 33.Ka6 37.Kb7 41.Kc8 45.b7 49.b8L 53.Sb6 57.a8T 61.Ta1 65.Kb7 69.Ka6 73.Ka5 77.Kb4 81.Kc3 85.Kd2 89.Ke3 93.Kf3 97.Kg2 101.Kh1 105.Lg2 106.Tg1 Sf2#
aber warum nicht 53.Sc7? muss ich mir nochmal ansehen. (2018-12-6)
Gerald Ettl: auch 49.b8S geht in der Loesung. (2018-12-7)
Gerald Ettl: Die Autorabsicht koennte 45.Sc7 49.Sa6 53.Sb8 57,a8T usw. gewesen sein. Waere eindeutig.
1.Sc5 Kg6 2.Df5+ Kf7 3.Dh5+ Kg8 4.Dd5+ Kh7 5.Kg2 9.Kf3 13.Ke3 17.Kd2 21.Kc3 25.Kb4 29.K5 33.Ka6 37.Kb7 41.Kc8 45.Sc7 49.Sa6 53.Sb8 57.a8T 61.Ta1 65.Kb7 69.Ka6 73.Ka5 77.Kb4 81.Kc3 85.Kd2 89.Ke3 93.Kf3 97.Kg2 101.Kh1 105.Lg2 106.Tg1 Sf2#
(siehe aber Cook mit 45.b7 49.b8S,L 53.Sc7,Sb6 usw.) (2018-12-7)
comment

Genre: r#
Input: Paul Valois, 2001-4-11
Last update: Alfred Pfeiffer, 2018-12-7 more...
62 - P1011752
Kostas Prentos
FIDE Tagung 08/2003
1. Preis
Champagner TT
46. WCCC Moskau 2003
P1011752
(12+13) cooked
BP in 21,0
1. h4 h5 2. Th3 Th6 3. Tg3 Te6 4. Tg4 hxg4 5. h5 g6 6. h6 Lg7 7. h7 Lc3 8. dxc3 Kf8 9. Dd6 Kg7 10. Dxe7 d6 11. Lf4 Sd7 12. e3 Tb8 13. La6 bxa6 14. h8=T Tb3 15. Th1 Lb7 16. Lh2 Da8 17. g3 Lxh1 18. axb3 Dg2 19. Ta5 c6 20. Th5 d5 21. Th8 Kxh8
play all play one stop play next play all
Cook: NL
1. Sc3 h5 2. Sd5 Th6 3. Sxe7 Te6 4. Sd5 Lb4 5. Sc3 Dh4 6. Sb1 Lc3 7. dxc3 g6 8. Lf4 Kf8 9. e3 Kg7 10. La6 bxa6 11. h3 Lb7 12. Lh2 Kh8 13. g3 Lxh1 14. Dg4 d5 15. Dg5 Sd7 16. Dd8 Tb8 17. De7 Tb3 18. axb3 Dxh3 19. Ta4 Dg2 20. Th4 c6 21. Tg4 hxg4 (M.Caillaud)
TT: proof game with capture of Anti-Pronkin piece
paul: Cooked by: 1.Sc3 h5 2.Sd5 Th6 3.Sxe7 Te6 4.Sd5 Lb4 5.Sc3 Dh4 6.Sb1 Lc3 7.dxc3 g6 8.Lf4 Kf8 9.e3 Kg7 10.La6 bxa6 11.h3 Lb7 12.Lh2 Kh8 13.g3 Lxh1 14.Dg4 d5 15.Dg5 Sd7 16.Dd8 Tb8 17.De7 Tb3 18.axb3 Dxh3 19.Ta4 Dg2 20.Th4 c6 21.Tg4 hxg4 (M.Caillaud) (2018-11-17)
paul: See P1067990 as a correction. (2018-11-17)
comment
Keywords: Anti-Pronkin Theme (T), Unique Proof Game, Pronkin Theme (T)
Genre: Retro
Reprints: feenschach 154, p. 254, 2004
Input: Gerd Wilts, 2003-9-28
Last update: Alfred Pfeiffer, 2018-11-17 more...
63 - P1012796
Thomas Volet
The Problemist 1980
P1012796
(12+11)
Weg des Te5?
R: 1. Te6-e5 ... 2. Th6-e6 ... 3. Th8-h6 ... 4. Ta8-h8 ... 5. Ta1-a8 ... 6. Th1-a1 Lg1-h2 7. Th4-h1 Dh2-g3
play all play one stop play next play all
Der wLe4 ist eine UWf, die durch Umwandlung des wBh2 auf g8 entstanden ist. Der wBa2 hat viermal geschlagen, der wBh2 einmal. Die sBBe und h haben dreimal geschlagen, der wLf1 wurde auf seinem Ausgangsfeld geschlagen. Um die Stellung aufzulösen, muss der wTe5 auf h3 oder h4 gestellt werden, um die sDg3 zu befreien. Der wTe5 stand auf allen vier Ecken.
No. 656 HN
Henrik Juel: Note that -1... e6xYd5?? fails, because the black capture exd must have been e7xLd6, as the dark-squared [Lc1] could have been captured on g6,f5
In fact, after the position has been opened, the further retroplay must include
Retract Lf3 to c8, d7-d6, c5xd6xe7, Kf4 to e8, Dg3 to d8, Lh2 to f8, e7xLd6-d5 (2018-11-26)
Henrik Juel: The white pawn-play could also have been d5xe6-e7, so the black play e7xLd6 and d7-d5 is also possible... (2018-11-26)
Henrik Juel: ... and of course, in my first comment,
[Lc1] could NOT have been captured on g6,f5 (2018-11-26)
comment
Keywords: Retro Shield, Promoted material on the board (L)
Genre: Retro
Input: Henri Nouguier, 2004-1-11
Last update: Alfred Pfeiffer, 2018-11-27 more...
64 - P1013615
Hans Gruber
10252 Schach 12/1983
P1013615
(16+16) C+
BP in 8.5
1. e4 f6 2. La6 Kf7 3. Dh5+ Ke6 4. f3 De8 5. Kf2 Df7 6. Kg3 Dg6+ 7. Kh4 De8 8. g3 Dd8 9. Dd5#
play all play one stop play next play all
Tempoverlust der schwarzen Dame.
Originalforderung war "Kürzeste Beweispartie?"
more ...
comment
Keywords: Unique Proof Game, Capture-free
Genre: Retro
Computer test: Natch 3.1
Input: Hans Gruber, 2004-5-1
Last update: Alfred Pfeiffer, 2018-12-7 more...
65 - P1013628
Hans Gruber
1476 Rokada 12/1983
P1013628
(16+15) C+
BP in 12.5
1. h4 c6 2. h5 Da5 3. Th4 Dc3 4. dxc3 Kd8 5. Lh6 Kc7 6. Dd6+ Kb6 7. Da3 Kb5 8. Tb4+ Kc5 9. g4 Kd6 10. Lg2 Kc7 11. Ld5 Kd8 12. f3 Ke8 13. Kf2
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1
4... Ke8-d8-c7-b6-b5-c5-d6-c7-d8-e8 to correct the tempo
Ez. is short for single moves, nowadays 12.5 (2018-12-7)
comment
Keywords: Unique Proof Game
Genre: Retro
Computer test: Natch 3.1
Input: Hans Gruber, 2004-5-1
Last update: Alfred Pfeiffer, 2018-12-7 more...
66 - P1013676
Hans Gruber
10891 Schach-Echo 06/1984
1. ehrende Erwähnung
P1013676
(13+16) C+
BP in 8.0
16 Einzelzüge: 1. f3 c6 2. Kf2 Db6+ 3. Kg3 Dxg1 4. h3 Dxf1 5. Kh2 De1 6. Tf1 Dxd2 7. Kg1 Da5 8. Sd2 Dd8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1
Fake castling
now 8.0, not 16 single moves (2018-12-7)
comment
Keywords: Unique Proof Game, Castling Paradox
Genre: Retro
Computer test: Natch 3.1
Input: Hans Gruber, 2004-5-1
Last update: Alfred Pfeiffer, 2018-12-7 more...
67 - P1015498
Alexander Hildebrand
214 Springaren 03/1988
P1015498
(4+3) C+
s#6
1. e8=L h5 2. Lxh5 h6 3. Lf3 h5 4. Lg2 h4 5. 0-0 h3 6. Lh1 h2#
Bereichert bekannte Schemata (z. ,B. Nr. , ref{0807}) um die Unterverwandlung.
play all play one stop play next play all
1230
more ...
comment

Genre: s#
Computer test: SCHRECKE: C+, Gustav 4.0f, Brute Force (2018-12-8) comment
Input: Selbstmatt-Miniaturen/Reflexmatt-Miniaturen, 2004-5-1
Last update: Erich Bartel, 2018-12-8 more...
68 - P1038249
Heinrich S. Eichstädt
450 Neue Berliner Schachzeitung , p. 317, 10/1867
P1038249
(6+8) C+
#5
1. Sd3+ Kxe4 2. Sc5+ Ke5 3. Ld4+ Kxd4 4. Te6 ... 5. Te4#
play all play one stop play next play all
Felber, Volker: Original hatte Nebenlösung 1. Lg3! Wann und wo wurde der sBa2 hinzugefügt. Im Originaldiagramm und in der Notation der Lösungsbesprechung ist er nicht vorhanden. (2018-11-16)
more ...
comment
Keywords: Brian Stephenson Collection (23200), Sacrifice of white pieces (S L)
Genre: n#
Computer test: Popeye Windows-64Bit v4.69
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2018-11-16 more...
69 - P1039948
Hermann Weißauer
(A) Die Schwalbe 29, p. 217, 10/1974
P1039948
(10+8)
#3
1. Th6? Lxf4!
1. Le4? Ld5! 2. Lxd5 Dc4!
1. Ld3! droht 2. Sc8+ Kc6 3. Lb5#
1. ... Dxa4,Lxa4 2. Lb5 ... 3. Sc8,Lc5#
1. ... Te5 2. Th6+ ... 3. e8=S#
1. ... Lc4 2. Lc5+! bxc5 3. Lxc4#
play all play one stop play next play all
Alfred Pfeiffer: Fehlenden wBe7 ergänzt. (2018-11-28)
Henrik Juel: Something must be wrong (besides the promoted Lb3)
Popeye 4.61 reports 1.Lc2,Ld3,Le4,Lxe6 (2018-11-29)
comment
Keywords: Brian Stephenson Collection (24904), Batteriewechsel, under-promotion (S), Umwandlung im Mattzug
Genre: 3#
Input: Brian Stephenson, 2004-8-12
Last update: Alfred Pfeiffer, 2018-11-28 more...
70 - P1043307
William S. Pavitt
547 Neue Berliner Schachzeitung , p. 317, 10/1868
P1043307
(8+8) cooked
#4
1. De8! Lxc1 2. Da4 Txa4 3. Tb3+ Sxb3 4. Sc3#
play all play one stop play next play all
Cook: NL
1. Dxa7! droht 2. Dxa3 ... 3. Db2#, 3. Txa1#, 3. Tb2#
1. Tcxa3! droht 2. Sd3 ... 3. Tb2#
2. ... Tc2 3. Txa1#
2. ... Tb4 3. Sc3#
1. ... Txc1 2. Da4 droht 3. Txa1+ Kb2 4. Db3#, 4. Ta2#
Felber, Volker: Die AL soll lt. NBSZ mit 1. De8! beginnen. Die 2. NL mit 1. Tcxa3! wurde von den Preisrichtern ebenfalls nicht erkannt. (2018-12-2)
more ...
comment
Keywords: Brian Stephenson Collection (28295)
Genre: n#
Reprints: 159 The English Mechanic and World of Science , p. 367, 19/06/1874
402 English Chess Problems 1876
Input: Brian Stephenson, 2004-8-12
Last update: Felber, Volker, 2018-12-2 more...
71 - P1060400
Hans Peter Rehm
Roland Baier

The Problemist 1988
1. Preis
P1060400
(14+12) C+
#3
* 1. ... Lxc6 2. Sbd7+ (A) Kd6,Lxd7 3. Txc6,Sfxd7# (B)
* 1. ... Lxe6 2. Sfd7+ (B) Kd6,Lxd7 3. Txe6,Sbxd7# (A)
1. d6! droht 2. Lf4+ ... 3. Dd5#
1. ... Lxc6 2. Sfd7+ (B) Lxd7,Kxd6 3. Lf4,Sbxd7# (A)
1. ... Lxe6 2. Sbd7+ (A) Lxd7,Kxd6 3. Lf4,Sfxd7# (B)
1. ... Kxd6,Sxd1,Kxe6 2. Lf4+,Sfxd7+,Se8#
1. ... Ta1 2. Lf4 Kxe6 3. Dd5#
1. ... Lf4 2. Lxf4+ Kxe6 3. Dd5#
play all play one stop play next play all
Sally: Satz:
1.... - Lxc6, 2. Sbd7+ (A) - Lxd7/Kd6, 3. Sfxd7 (B)/Txc6#.
1.... - Lxe6, 2. Sfd7+ (B) - Lxd7/Kd6, 3. Sbxd7 (A)/Txe6#
Lösung : 1. d6! [2. Lf4+ und 3. Dd5#)
1.... - Lxc6, 2. Sfd7+ (B) - Lxd7/Kxd6,3. Sbxd7 (A)/Lf4#
1.... - Lxe6, 2. Sbd7+ (A) - Lxd7/Kxd6,3. Sfxd7 (B)/Lf4#.
(1... - Kxd6/Sxd1/Kxe6, 2. Lf4+/Sfxd7+/Se8#)
(1... - Ta1, 2. Lf4 - Kxe6, 3. Dd5#.
(1... - Lf4, 2. Lxf4+- Kxe6, 3. Dd5#.
Wohl die erste , einzige und vielleicht letzte Kombination von Umnow I und dem Tura-Thema! Eine konstruktive und kompositorische Sonderleistung. (2018-12-5)
more ...
comment
Keywords: Brian Stephenson Collection (45479), Umnov
Genre: 3#
Computer test: Popeye 4.61
Input: Brian Stephenson, 2004-8-12
Last update: Alfred Pfeiffer, 2018-12-5 more...
72 - P1067990
Kostas Prentos
Andrey Frolkin

R255 Probleemblad 07-08/2004
P1067990
(11+15) C+
BP in 23,0
1. h4 h5 2. Th3 Th6 3. Tg3 Ta6 4. Tg4 hxg4 5. h5 g6 6. h6 Lg7 7. h7 Lc3 8. bxc3 Kf8 9. La3 Kg7 10. Ld6 c5 11. h8=T Da5 12. Th1 b6 13. Lh2 Lb7 14. g3 Lxh1 15. Lg2 d5 16. Lf3 gxf3 17. Sa3 fxe2 18. f3 Sd7 19. Kf2 e1=T 20. Tb1 Te6 21. Tb4 Td6 22. Th4 e6 23. Th8 Kxh8
play all play one stop play next play all
Schlag eines Pronkin- und eines Antipronkin-Turms.
paul: Version of P1011752. (2018-11-17)
more ...
comment
Keywords: Anti-Pronkin Theme, Unique Proof Game, Pronkin Theme (T)
Genre: Retro
Computer test: Euclide 0.96
Reprints: H37 FIDE Album Annexe 2004-2006 2013
H37 Phénix 261/262, p. 10355, 05-06/2016
Input: Gerd Wilts, 2005-8-21
Last update: Alfred Pfeiffer, 2018-11-17 more...
73 - P1070020
Aleksandr Semenenko
Valery Semenenko

2079 Orbit 34 04/2007
P1070020
(12+13) C+
BP in 14.0
1. h4 Sf6 2. h5 Tg8 3. h6 gxh6 4. Sf3 Lg7 5. Se5 Lh8 6. Sxd7 Sbxd7 7. a4 Sf8 8. a5 Dd4 9. a6 Dxb2 10. axb7 Lxb7 11. f4 0-0-0 12. f5 Se8 13. f6 La8 14. fxe7 Db8
play all play one stop play next play all
Henrik Juel: C+ by Natch 3.1
Cyclical interchanges
La8-Td8-Db8-Se8-Kc8(-La8), Sf8-Lh8-Tb8(-Sf8) (2018-12-7)
more ...
comment
Keywords: Unique Proof Game, Interchange (kstlsdtl), Castling, Homebase (w)
Genre: Retro
Computer test: Natch 3.1
Input: Gerd Wilts, 2008-9-8
Last update: Alfred Pfeiffer, 2018-12-7 more...
74 - P1070962
Fadil Abdurahmanovic
Bernd Ellinghoven

Die Schwalbe 08/1999
4. Preis
P1070962
(2+8) C+
h#6
0.1...
1. ... Lxc1 2. Ld2 La3 3. c1=T Lc5 4. Tf1 Le3 5. Tf5 Lh6 6. Lg5 Lg7#
play all play one stop play next play all
Sally: Hier sieht man eine reziproke L-L-Bahnung, die allerdings zurücktritt gegenüber dem dominierenden Rehm-Thema und dem Rundlauf des wL. Es ist dem Autorenduo gelungen, eine sehr elegante, ausgefeilte Darstellung gelungen; durch die für den sT freizuhaltenden Linien wird eine überraschende ökonomische Stellung ermöglicht. (2018-12-9)
comment

Genre: h#
Computer test: (Popeye WINDOWS98-32Bit-Version 3.75 (2048 KB))
Input: hpr, 2003-10-3
Last update: hpr, 2010-2-6 more...
75 - P1071872
Fadil Abdurahmanovic
12350 Die Schwalbe 2004
3. Preis
P1071872
(3+9) C+
h#6
0.1...
1. ... Lb8 2. Dc7 a6 3. Db7+ axb7 4. Kg6 Lh2 5. Kg5 b8=D 6. Kh4 Dg3#
play all play one stop play next play all
Sally: Eine sowohl visuell wie auch logisch attraktive Bahnungsidee. (2018-12-9)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit V4.05 (1678636 KB))
Input: hpr, 2007-1-21
Last update: hpr, 2007-1-21 more...
76 - P1071991
Fadil Abdurahmanovic
Bernd Ellinghoven

13167 Die Schwalbe 10/2006
1. Preis
P1071991
(3+8) C+
h#6
1. De6 Kc2 2. Ta3 b3 3. Sh5 Kd3 4. Dxb3+ Ke4 5. Dh3 Kf5 6. Tg3 Lg5#
play all play one stop play next play all
Sally: Ein schwieriges, aber sehr strategisch, wunderschönes Problem. Die wD verlässt das kritische Feld, um den sT durchzulassen (und dem wK das Feld c2 zu geben) und kehrt zurück, um den dort verstellten wB zu schlagen. (2018-12-9)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit V4.05 (1713184 KB))
Input: hpr, 2007-1-26
Last update: hpr, 2009-2-25 more...
77 - P1071997
Fadil Abdurahmanovic
Die Schwalbe , p. 622, 12/2006
3. Preis
A.Schöneberg-50-Jubiläumssturnier
P1071997
(6+8) C+
h#2
3.1...
1) 1. Dd5 d3 2. Kc5 e4#
2) 1. Dxe3 Txe3 2. La5 Tb3#
3) 1. Dxh4 Lxh4 2. Ka5 Ld8#
play all play one stop play next play all
Sally: Einheitlich beginnt die sD in jeder Lösung.
Zwei mal wird sie geopfert.
Dreimal muss der wT fesseln. Eine klare Darstellung. (2018-12-9)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit V4.05 (1680204 KB))
Input: hpr, 2007-1-26
Last update: hpr, 2007-1-26 more...
78 - P1072002
Fadil Abdurahmanovic
Die Schwalbe , p. 623, 12/2006
Lob
A.Schöneberg-50-Jubiläumssturnier
P1072002
(7+11) C+
h#2
3.1...
1) 1. e1=S Se5 2. Kxd4 Sd7#
2) 1. e1=T Ld8 2. Te7 Lxa5#
3) 1. e1=L+ Kg1 2. Ld2 d5#
play all play one stop play next play all
Sally: Der sB muss den wL ins Spiel bringen und wandelt sich dreimal um. (2018-12-9)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit V4.05 (1679636 KB))
Input: hpr, 2007-1-26
Last update: hpr, 2007-1-26 more...
79 - P1072010
Fadil Abdurahmanovic
13217 Die Schwalbe 12/2006
P1072010
(2+9) C+
h#5
2.1...
1) 1. Lb8 e5 2. Ld6 exd6 3. c1=L d7 4. Lb2 d8=D 5. Lg7 Dd3#
2) 1. Ta5 Kh2 2. Tf5 exf5 3. c1=T f6 4. Tg1 f7 5. Tg7 f8=S#
play all play one stop play next play all
Sally: Alte Idee in neuen Gewändern. Gefällige gemischte Allumwandlung mit zwei s Phönix Figuren, und dies in Meredith Fassung. (2018-12-9)
comment

Genre: h#
Computer test: (Popeye WINDOWS-32Bit V4.05 (1679388 KB))
Input: hpr, 2007-1-26
Last update: hpr, 2007-1-26 more...
80 - P1081145
Milos Tomasevic
Radovan Tomasevic

The Problemist , p. 376, 01/1988
1. Preis
P1081145
(15+2) cooked
s#40
1. Sa2 Kxa2 2. Sc1+ Ka1 3. Sa2 Kxa2 4. Dh5 Ka1 5. Dd1+ Ka2 6. Df3 Ka1 7. Dh1+ Ka2 8. Da8 Ka1 9. Tb1+ Ka2 10. T1b2+ Ka1 11. Ta2+ Kxa2 12. c4 Ka1 13. Dh1+ Ka2 14. De4 Ka1 15. De1+ Ka2 16. De5 Ka1 17. d5+ Ka2 18. Db8 Ka1 19. Dh8+ Ka2 20. f6 Ka1 21. f7+ Ka2 22. Kf6 Ka1 23. Kf5+ Ka2 24. Ke5 Ka1 25. Ke4+ Ka2 26. Kd4 Ka1 27. Kd3+ Ka2 28. Kc3 Ka1 29. Kd2+ Ka2 30. Dh5 Ka1 31. Dd1+ Ka2 32. Kc1 Ka1 33. Tb1+ Ka2 34. Tb3 Ka1 35. Lf6+ Ka2 36. Tc3 Ka1 37. Td3+ Ka2 38. Td4 Ka1 39. Td2+ Ka2 40. Lb2 axb2#
play all play one stop play next play all
Cook: 1. Sa2 Kxa2 2. Sc1+ Ka1 3. Sa2 Kxa2 4. Dh5 Ka1 5. Tb1+ Ka2 6. Tc4 Kxb1 7. Dd1+ Kb2 8. f6 Ka2 9. b6 Kb2 10. Tc8 Ka2 11. b7 Kb2 12. b8=D+ Ka2 13. Da7 Kb2 14. Tc5 Ka2 15. Da8 Kb2 16. Dd5 a2 17. Dd7 Ka3 18. Da1 Ka4 19. f7+ Ka3 20. Kh7 Ka4 21. Kh8+ Ka3 22. h5 Ka4 23. h6+ Ka3 24. h7 Ka4 25. g6+ Ka3 26. g7 Ka4 27. Tc4+ Ka5 28. Da7+ Kb5 29. Df1 a1=S 30. Ld8 Sxc2 31. Ta4+ Kc6 32. Da8+ Kd6 33. f8=D+ Kxe6 34. Ta6+ Kd7 35. Ta7+ Ke6 36. De2+ Se3 37. Dg4+ Sxg4 38. De4+ Se5 39. Dg8+ Kd6 40. Dg6+ Sxg6#
37. ... Sf5 38. Dg8+ Kd6 39. Le7+ Sxe7 40. Dg6+ Sxg6#
30. ... Sb3 31. Da5+ Sxa5 32. Tb4+ Kc6 33. Df3+ Kd6 34. Tb6+ Sc6 35. f8=D+ Kxe6 36. Lh4 Kd7 37. Tb7+ Ke6 38. Dg8+ Kd6 39. Dg3+ Se5 40. Dg6+ Sxg6#
29. ... a1=T 30. Df5+ Kxc4 31. Dd3+ Kd5 32. Db7+ Kxe6 33. Dh3+ Kxf7 34. g8=L+ Kg6,Ke8 35. Lf7+ Kxf7 36. Df5+ Ke8 37. Dc6+ Kxe7 38. Dfd7+ Kf8 39. Da8+ Txa8 40. Df7+ Kxf7#
29. ... a1=D 30. Tb4+ Kc6 31. d5+ Kxd5 32. Db5+ Kxe6 33. Dab6+ Kxe7 34. Te4+ Kxf7 35. Df1+ Dxf1 36. g8=L+ Kf8 37. Df6+ Dxf6#
33. ... Kxf7 34. g8=L+ Kxe7 35. Te4+ Kf8 36. Df1+ Dxf1 37. Df6+ Dxf6#
29. ... a1=L 30. La3 Lb2 31. Tb4+ Kc6 32. Df3+ Kd6 33. Db6+ Ke7 34. Tc4+ Lxa3 35. Tc7+ Kd8 36. Df6+ Le7 37. g8=L Lxf6#
30. ... Lxc3 31. Tb4+ Kc6 32. Df3+ Kd6 33. Db6+ Ke7 34. Tc4+ Lb4 35. Tc7+ Kd8 36. Df6+ Le7 37. g8=L Lxf6#
14. ... a2 15. Db7+ Ka3 16. Da1 Ka4 17. f7 Ka3 18. Kh7 Ka4 19. Kh8 Ka3 20. h5 Ka4 21. h6 Ka3 22. h7 Ka4 23. g6 Ka3 24. g7 Ka4 25. Tc4+ Ka5 26. Da7+ Kb5 27. Df1 a1=S 28. Ld8 Sxc2 29. Ta4+ Kc6 30. Da8+ Kd6 31. f8=D+ Kxe6 32. Ta6+ Kd7 33. Ta7+ Ke6 34. De2+ Se3 35. Dg4+ Sxg4 36. De4+ Se5 37. Dg8+ Kd6 38. Dg6+ Sxg6#
35. ... Sf5 36. Dg8+ Kd6 37. Le7+ Sxe7 38. Dg6+ Sxg6#
28. ... Sb3 29. Da5+ Sxa5 30. Tb4+ Kc6 31. Df3+ Kd6 32. Tb6+ Sc6 33. f8=D+ Kxe6 34. Lh4 Kd7 35. Tb7+ Ke6 36. Dg8+ Kd6 37. Dg3+ Se5 38. Dg6+ Sxg6#
27. ... a1=T 28. Df5+ Kxc4 29. Dd3+ Kd5 30. Db7+ Kxe6 31. Dh3+ Kxf7 32. g8=L+ Kg6,Ke8 33. Lf7+ Kxf7 34. Df5+ Ke8 35. Dc6+ Kxe7 36. Dfd7+ Kf8 37. Da8+ Txa8 38. Df7+ Kxf7#
27. ... a1=D 28. Tb4+ Kc6 29. d5+ Kxd5 30. Db5+ Kxe6 31. Dab6+ Kxe7 32. Te4+ Kxf7 33. Df1+ Dxf1 34. g8=L+ Kf8 35. Df6+ Dxf6#
31. ... Kxf7 32. g8=L+ Kxe7 33. Te4+ Kf8 34. Df1+ Dxf1 35. Df6+ Dxf6#
27. ... a1=L 28. La3 Lb2 29. Tb4+ Kc6 30. Df3+ Kd6 31. Db6+ Ke7 32. Tc4+ Lxa3 33. Tc7+ Kd8 34. Df6+ Le7 35. g8=L Lxf6#
28. ... Lxc3 29. Tb4+ Kc6 30. Df3+ Kd6 31. Db6+ Ke7 32. Tc4+ Lb4 33. Tc7+ Kd8 34. Df6+ Le7 35. g8=L Lxf6#
10. ... a2 11. La3+ Kxa3 12. Da1 Ka4 13. Tc5 Ka3 14. b7 Ka4 15. b8=D Ka3 16. f7 Ka4 17. Kh7 Ka3 18. Kh8 Ka4 19. h5 Ka3 20. h6 Ka4 21. h7 Ka3 22. g6 Ka4 23. g7 Ka3 24. Dc1+ Ka4 25. Db7 a1=S 26. Dcb2 Sb3 27. Da7+ Sa5 28. Db1 Ka3 29. e7 Ka4 30. f8=D Ka3 31. Tb5 Ka4 32. Da2+ Kxb5 33. e8=D+ Sc6 34. Dh5+ Se5 35. Dfg8 Kc6 36. D2a4+ Kd6 37. Dg6+ Sxg6#
26. ... Sxc2 27. Da2+ Sa3 28. Tc8 Ka5 29. f8=D Ka4 30. Dg8 Ka5 31. e7 Ka4 32. Da7+ Kb5 33. De2+ Sc4 34. Dh5+ Se5 35. Tb8+ Kc6 36. Dg6+ Sxg6#
25. ... a1=T 26. Tc4+ Ka5 27. Da7+ Kb5 28. Tb4+ Kc6 29. Db7+ Kd6 30. f8=D+ Kxe6 31. Dc8+ Kd5 32. g8=D+ Ke4 33. Da8+ Txa8 34. d5+ Ke5 35. De7+ Kf5 36. De4+ Kf6 37. Df8+ Txf8#
25. ... a1=D 26. Tc4+ Ka5 27. Da7+ Kb5 28. Tb4+ Kc6 29. Db7+ Kd6 30. f8=D+ Kxe6 31. Dfe7+ Kf5 32. Dee4+ Kf6 33. Db6+ Kf7 34. Df1+ Dxf1 35. g8=L+ Kf8 36. Df6+ Dxf6#
25. ... a1=L 26. Tc4+ Ka5 27. Da8+ Kb5 28. Tc5+ Kb6 29. Tc6+ Kb5 30. g8=L Lb2 31. c4+ Kb4 32. De1+ Lc3 33. Tb6+ Kxc4 34. Da2+ Kxd4 35. De3+ Kxe3#
30. ... Lxc3 31. Dg5+ Kb4 32. Tb6+ Kc4 33. Da2+ Kxd4 34. De3+ Kxe3#
27. ... Kb6 28. Tc6+ Kb5 29. g8=L Lb2 30. c4+ Kb4 31. De1+ Lc3 32. Tb6+ Kxc4 33. Da2+ Kxd4 34. De3+ Kxe3#
29. ... Lxc3 30. Dg5+ Kb4 31. Tb6+ Kc4 32. Da2+ Kxd4 33. De3+ Kxe3#
8. ... a2 9. Tb4+ Kxc3 10. Tb3+ Kc4 11. Da1 Kd5 12. Kf5 Kc4 13. La3 Kd5 14. e7 Kc4 15. e8=D Kd5 16. Kg6 Kc4 17. f7 Kd5 18. Kh7 Kc4 19. Kh8 Kd5 20. h5 Kc4 21. h6 Kd5 22. h7 Kc4 23. g6 Kd5 24. g7 Kc4 25. Dc3+ Kd5 26. Dcc6+ Kxd4 27. Lc1 a1=S 28. Dc3+ Kd5 29. f8=D Sxc2 30. Dd3+ Sd4 31. Df6 Kc5 32. Dc3+ Kd5 33. Da8+ Sc6 34. Dg8+ Ke4 35. De6+ Se5 36. Dg6+ Sxg6#
29. ... Sxb3 30. Dd3+ Sd4 31. Df6 Kc5 32. Dc3+ Kd5 33. Da8+ Sc6 34. Dg8+ Ke4 35. De6+ Se5 36. Dg6+ Sxg6#
27. ... a1=T 28. Ded7+ Ke5 29. Dcd5+ Kf6 30. g8=S+ Kg6 31. Se7+ Kf6 32. D7f5+ Kxe7 33. f8=L+ Ke8 34. Dfe6+ Kxf8 35. Da8+ Txa8 36. Df7+ Kxf7#
27. ... a1=D 28. Ded7+ Ke5 29. Dcd5+ Kf6 30. D7f5+ Ke7 31. Lg5+ Df6 32. Dg6 Dxg5 33. g8=S+ Kf8 34. Dg7+ Dxg7#
27. ... a1=L 28. g8=L Lc3 29. Ded7+ Ke5 30. Dcd5+ Kf6 31. f8=T+ Kg6+ 32. Dg7+ Lxg7#
28. ... Lb2 29. Ded7+ Ke5 30. Te3+ Kf4+ 31. Df6+ Lxf6#
9. ... Ka3 10. Tb3+ Ka4 11. Da1 Ka5 12. Lc5 Ka4 13. f7 Ka5 14. Kh7 Ka4 15. Kh8 Ka5 16. h5 Ka4 17. h6 Ka5 18. h7 Ka4 19. g6 Ka5 20. g7 Ka4 21. b6 Ka5 22. Tb4 Ka6 23. b7 Ka5 24. b8=D Ka6 25. Tc4 Ka5 26. Da7+ Kb5 27. Ta4 Kc6 28. Dh1+ Kb5 29. Lb6 a1=S 30. Dh5+ Kc6 31. Tc4+ Kd6 32. f8=L+ Kxe6 33. d5+ Kf6 34. g8=D Sxc2 35. Df3+ Ke5 36. Ld4+ Sxd4 37. Lg7+ Kd6 38. Tc6+ Sxc6 39. Dg3+ Se5 40. Dg6+ Sxg6#
34. ... Sb3 35. Df3+ Ke5 36. Ld4+ Sxd4 37. Lg7+ Kd6 38. Tc6+ Sxc6 39. Dg3+ Se5 40. Dg6+ Sxg6#
29. ... a1=T 30. Dh5+ Kc6 31. Tc4+ Kd6 32. f8=D+ Kxe6 33. Dh6+ Kd5 34. g8=D+ Ke4 35. Da8+ Txa8 36. d5+ Ke5 37. Df5+ Kxf5 38. Dh5+ Kf6 39. Df8+ Txf8#
29. ... a1=D 30. Dh5+ Kc6 31. Df3+ Kb5 32. Df5+ Kc6 33. Tc4+ Kd6 34. Da3+ Dxa3 35. De5+ Ke7 36. Tc7+ Kd8 37. Df6+ De7 38. g8=L Dxf6#
31. ... Kd6 32. Dc7+ Kxe6 33. De4+ Kf6 34. Dce5+ Kxf7 35. Ta7+ Dxa7 36. g8=L+ Kf8 37. Dg7+ Dxg7#
29. ... a1=L 30. Dh5+ Kc6 31. Tc4+ Kd6 32. Df5 Lb2 33. Da3+ Lxa3 34. De5+ Ke7 35. Tc7+ Kd8 36. Df6+ Le7 37. g8=L Lxf6#
32. ... Lxc3 33. Da3+ Lb4 34. De5+ Ke7 35. Tc7+ Kd8 36. Df6+ Le7 37. g8=L Lxf6#
7. ... Ka2 8. Tc8 Kb2 9. b6 a2 10. La3+ Kxa3 11. Da1 Ka4 12. Tc5 Ka3 13. Kh7 Ka4 14. Kh8 Ka3 15. h5 Ka4 16. h6 Ka3 17. h7 Ka4 18. g6 Ka3 19. g7 Ka4 20. f6 Ka3 21. f7 Ka4 22. b7 Ka3 23. b8=D Ka4 24. Dc1 a1=S 25. Dcb2 Sb3 26. Da7+ Sa5 27. Db1 Ka3 28. f8=D Ka4 29. e7 Ka3 30. Tb5 Ka4 31. Da2+ Kxb5 32. e8=D+ Sc6 33. Dh5+ Se5 34. Dfg8 Kc6 35. D2a4+ Kd6 36. Dg6+ Sxg6#
25. ... Sxc2 26. Da2+ Sa3 27. Tc7 Ka5 28. e7 Ka4,Ka6 29. f8=D Ka5 30. Dfg8 Ka4,Ka6 31. Da7+ Kb5 32. De2+ Sc4 33. Dh5+ Se5 34. Tb7+ Kc6 35. Dg6+ Sxg6#
24. ... a1=T 25. Tc4+ Ka5 26. Da7+ Kb5 27. Tb4+ Kc6 28. Db7+ Kd6 29. f8=D+ Kxe6 30. Dc8+ Kd5 31. g8=D+ Ke4 32. Da8+ Txa8 33. d5+ Ke5 34. De7+ Kf5 35. De4+ Kf6 36. Df8+ Txf8#
24. ... a1=D 25. Tc4+ Ka5 26. Dg5+ Ka6 27. Dd6+ Ka7,Kb7 28. Dge7+ Ka8 29. Ta4+ Dxa4 30. g8=D+ De8 31. Da6+ Kb8 32. Daa7+ Kc8 33. Deb7+ Kd8 34. Df8 Dxf8#
24. ... a1=L 25. Tc4+ Ka5 26. Da8+ Kb5 27. Tc5+ Kb6 28. Tc6+ Kb5 29. g8=L Lb2 30. c4+ Kb4 31. De1+ Lc3 32. Tb6+ Kxc4 33. Da2+ Kxd4 34. De3+ Kxe3#
29. ... Lxc3 30. Dg5+ Kb4 31. Tb6+ Kc4 32. Da2+ Kxd4 33. De3+ Kxe3#
26. ... Kb6 27. Tc6+ Kb5 28. g8=L Lb2 29. c4+ Kb4 30. De1+ Lc3 31. Tb6+ Kxc4 32. Da2+ Kxd4 33. De3+ Kxe3#
28. ... Lxc3 29. Dg5+ Kb4 30. Tb6+ Kc4 31. Da2+ Kxd4 32. De3+ Kxe3#
9. ... Ka2 10. b7 Kb2 11. b8=D+ Ka2 12. De5 Kb2 13. Dd5 a2 14. La3+ Kxa3 15. Da1 Ka4 16. Kh7 Ka3 17. Kh8 Ka4 18. h5 Ka3 19. h6 Ka4 20. h7 Ka3 21. g6 Ka4 22. g7 Ka3 23. f6 Ka4 24. f7 Ka3 25. Dc1+ Ka4 26. Tc7 a1=T 27. Dc4+ Ka5 28. Dg5+ Kb6 29. Dcb5+ Kxc7 30. Dge5+ Kc8 31. Dc6+ Kd8 32. g8=D+ Ke7 33. Df8+ Kxf8 34. e7+ Kxf7 35. Ded5+ Kxe7 36. Ddd7+ Kf8 37. Da8+ Txa8 38. Df7+ Kxf7#
30. ... Kd8 31. g8=D+ Ke7 32. Dd8+ Kxd8 33. f8=T+ Ke7 34. Dec5+ Kxe6 35. Dd5+ Ke7 36. Dbd7+ Kxf8 37. Da8+ Txa8 38. Df7+ Kxf7#
26. ... a1=S 27. e7 Sxc2 28. Da2+ Sa3 29. e8=D+ Ka5 30. Db8 Ka4,Ka6 31. f8=D Ka5 32. Dg8 Ka4,Ka6 33. Da7+ Kb5 34. Df1+ Sc4 35. Df5+ Se5 36. Tb7+ Kc6 37. Dg6+ Sxg6#
28. ... Kb5 29. Dcb2+ Sb4 30. f8=D Kb6 31. Da7+ Kb5 32. De2+ Sd3 33. Tc6 Kxc6 34. e8=D+ Kd5 35. Dg8+ Kd6 36. D2e5+ Sxe5 37. Dg6+ Sxg6#
27. ... Sb3 28. Ta7+ Sa5 29. De6 Kb5 30. e8=D+ Sc6 31. f8=D Kb6 32. Dfe7 Kb5 33. D6g8 Kb6 34. Dc7+ Kb5 35. Dh5+ Se5 36. Db8+ Kc6 37. Dg6+ Sxg6#
26. ... a1=D 27. Da8+ Kb5 28. Dg5+ Kb6 29. Tb7+ Kc6 30. Db5+ Kd6 31. Td7+ Kxe6 32. De4+ Kf6 33. Td6+ Kxf7 34. Df1+ Dxf1 35. g8=L+ Kf8 36. Tf6+ Dxf6#
26. ... a1=L 27. Dc6+ Ka5 28. Dc5+ Ka4,Ka6 29. Da7+ Kb5 30. g8=L Lb2 31. c4+ Kb4 32. De1+ Lc3 33. Tb7+ Kxc4 34. Da2+ Kxd4 35. De3+ Kxe3#
30. ... Lxc3 31. Dg5+ Kb4 32. Tb7+ Kc4 33. Da2+ Kxd4 34. De3+ Kxe3#
Olaf Jenkner: Leider ist diese großartige Aufgabe nicht korrekt. (2018-12-5)
more ...
comment
Keywords: Königstreppe, Opferhäufung
Genre: s#
Reprints: F84 FIDE Album 1986-1988 1995
Input: HBae, 2009-2-6
Last update: Alfred Pfeiffer, 2018-12-5 more...
81 - P1084005
Albert Grigoryan
4995 Shakhmatnaya Kompozitsiya 2008
P1084005
(4+2)
h=3
b) wSa6 nach a8, h#3
a) 1. h1=D Sc5 2. Dg1 Se4 3. Df2 Sxf2=
b)
play all play one stop play next play all
klären Forderung
Anton Baumann: vermutlich Forderung b) wSa6 nach a7, h#3
entsprechende Lösung: 1.h1=D Sc6 2.Dh7 Se5 3.De4 g3#
Computer test: Gustav 4.0e C+ (2018-11-21)
Henrik Juel: Part a) is C+ by Popeye 4.61 (also) (2018-11-21)
comment

Genre: Fairies, h#
Computer test: Popeye Windows-32Bit v4.47 (100000 KB)
Input: hpr, 2009-3-23
Last update: hpr, 2009-3-23 more...
82 - P1094674
Ludwig von Bilow
472 Neue Berliner Schachzeitung , p. 379, 12/1867
P. Journoud in Paris gewidmet
P1094674
(10+4)
s#5
1. g7+ Ke8 2. Dg8+ Lxg8 3. Sf6+ Kf7 4. Ta7+ Sb7 5. Kd5 Kxf6#
unlösbar 4. ... Kg6
play all play one stop play next play all
Ein wBh5 würde helfen - fehlt aber definitiv im Urdiagramm
Anton Baumann: korrekt mit wLe4! vergl. P1093329 (2018-6-21)
Felber, Volker: Offensichtlich ein fehlerhafter Nachdruck. Die NBSZ berichtigt 10/1868, Seite 320 mit wLe4. (2018-12-2)
comment
Keywords: no solution
Genre: s#
Input: Frank Müller, 2009-11-21
Last update: Felber, Volker, 2018-11-17 more...
83 - P1101195
Arnold Beine
harmonie 06/2007
Schnellkompositionsturnier Sachsentreffen Hartha
2. Lob
P1101195
(6+2) C+
s#7
1. Lc4 a5 2. Lb4 axb4 3. Db5+ Ka3 4. La2 b3 5. Dc5+ Ka4 6. Dc4+ Ka3 7. Lb1 b2#
1. Lc4 a6 2. Db1 a5 3. Le5 Ka3 4. Lb5 a4 5. Dc1+ Kb3 6. Kb1 a3 7. La1 a2#
play all play one stop play next play all
more ...
comment
Keywords: Bauernschritt-Varianten
Genre: s#
Computer test: M. Schreckenbach: Gustav 4.0 f
Input: Frank Müller, 2010-3-14
Last update: Olaf Jenkner, 2018-11-24 more...
84 - P1102583
David Zimbeck
Q0082 StrateGems 2002
3. Lob
P1102583
(14+9) cooked
=14
1. a8=D+ Txa8 2. bxa8=T+ Kb7 3. c8=L+ Kc6 4. d8=S+ Txd8 5. exd8=S+ Kd6 6. Txd5 Ke7 7. f8=L+ Kf6 8. Sd7+ Kxg6 9. g8=T+ Kxh5 10. h8=D+ Kg4 11. T8xg5+ Kf3 12. Dxh1+ Ke3 13. Tg3+ Lf3 14. Df1=
play all play one stop play next play all
Cook: NL
3. Sc5+ Kc6 4. c8=D+ Sc7 5. d8=S+ Txd8 6. exd8=S+ Kd6 7. f8=D+ Ke5 8. Dxc7+ Kd4 9. Dxf2+ e3 10. Dd6+ Kc3 11. De5+ Kd2 12. Dexe3+ Kd1 13. Txh1+ Lf1 14. Dxg5=
10. ... Dd5 11. Dxd5+ Kc3 12. Dxe2 droht 13. Txg5=
9. ... Kc3 10. Tb3+ Kc2 11. Sxe4+ Kd1 12. Txh1+ Lf1 13. Sxg5=
10. ... Kd2 11. Txh1 Kc2 12. Sc4 Sf3 13. Txf3=
11. ... e3 12. Txe3 Sf3 13. Txf3=
11. ... Sf3,Sh3,Se6,Sf7,Sxh7 12. Sc4+ Kc2 13. Txf3,TxS,SxS=
3. ... Kxc7 4. d8=D+ Txd8 5. exd8=D+ Kc6 6. Dxd5+ Kc7 7. Db7+ Kd6 8. f8=D+ Ke5 9. Dbe7+ Kd4 10. Dxf2+ Kc3 11. Tb3+ Kc2 12. Txh1 Kd2 13. Sxe4+ Kc2 14. Dxg5=
13. ... Sxe4 14. Dxe4=
12. ... Sf3 13. Dxe2+ Sd2 14. Ta5=
12. ... Sh3,Se6,Sf7,Sxh7 13. Lxe4+ Kd2 14. Txh3,TxS,DxS=
11. ... Kd2 12. Txh1 Sf3/Sh3 13. Sc4+ Kc2 14. Txf3=
12. ... Se6,Sf7,Sxh7 13. Sxe4+ Kc2 14. Dxe6,DxS=
10. ... e3 11. Td8+ Dd5 12. Txd5+ Kc3 13. Dexe3+ Ld3 14. Thxg5=
11. ... Kc3 12. Dexe3+ Ld3 13. Txh1 Sf3 14. Dexf3=
4. ... Kc6 5. Tc8+ Sc7 6. e8=L+ Td7 7. Txc7+ Kd6 8. f8=D+ Ke5 9. Dxg5+ Kd4 10. Dxf2+ Kc3 11. Sxe4+ Kd3 12. Txd7+ Kc2 13. Txh1=
10. ... e3 11. Txd7+ Dd5 12. Dxd5+ Kc3 13. Dxe2=
11. ... Kc3 12. Dgxe3+ Ld3 13. Txh1=
David Zimbeck: Can this be fixed by making it =15 with a black pawn on d2?! (2018-11-29)
Olaf Jenkner: Yes, Gustav found no cook. (2018-12-2)
more ...
comment
Keywords: Allumwandlung (2-fach), konsekutive Umwandlungen 8 (DTLSSLTD)
Genre: Fairies
Input: Erich Bartel, 2010-4-5
Last update: Alfred Pfeiffer, 2018-11-29 more...
85 - P1110862
Frantisek Josef Prokop
British Chess Magazine 1949
P1110862
(7+2) C+
s#7
1. Td2 f1=S 2. Td7+ Kc8 3. Ta7+ Kd8 4. Td1+ Sd2 5. Dc4+ Kc8 6. Le7+ Sxc4 7. Sb6+ Sxb6#
1. ... f1=L 2. Ld6+ Kd8 3. Lb8+ Ld3 4. La7 Kc7 5. De7+ Kc8 6. La6+ Lxa6 7. Db7+ Lxb7#
1. ... f1=T 2. Ld6+ Kd8 3. Le7+ Kc7 4. Tc1+ Txc1 5. Dc6+ Txc6 6. Ld8+ Kc8 7. La6+ Txa6#
1. ... f1=D 2. Ld6+ Kd8 3. Lc7,Le7+ Kxc7,Kxe7 4. De5+ Kc8 5. La6+ Dxa6#
play all play one stop play next play all
Olaf Jenkner: Die Aufgabe wurde 2006 um die vollzügige Damenvariante erweitert (P1271610). (2018-11-24)
more ...
comment
Keywords: Allumwandlung, unechte schwarze
Genre: s#
Computer test: Gustav 3.1t, Brute Force
Reprints: 1c Zauber des Schachdiagramms 1968
Input: Frank Müller, 2010-7-18
Last update: Olaf Jenkner, 2018-11-24 more...
86 - P1112222
Erich Bartel
346 Problemkiste (8) 07/1983
P1112222
(2+1)
a) 14 ? S (++) w N
b) 16 ? S (++) w D
a) 1. Dc3,Dg3,De1,De2,De3,De4,Dd5,De8,De7,De6,Df5,Kd4,Kd2,Kc4 sy
14 freiwillige Symmetrie-Erhaltungen

b) 1. Dc3,Dg3,De1,De2,De3,De4,Dd5,De8,De7,De6,Df5,Kd4,Kd2,Kc4 sy
1. ... Kf2,Kg4 sy
16 freiwillige Symmetrie-Erhaltungen, Duplex
play all play one stop play next play all
Im Original 11 bzw. 13 Züge, Zählfehler korrigiert in PK-11 10/1983 S.43
more ...
comment
Keywords: Einzügerrekord
Genre: Fairies
Input: Erich Bartel, 2010-8-3
Last update: HBae, 2018-11-29 more...
87 - P1113604
Erich Bartel
Jugendschach (46) 06/01/1985
P1113604
(6+3)
h#2*
0.1.1.1
* Null-Satz!
1. ... Lb6 2. e5 Lc5#
play all play one stop play next play all
Cook: Warum nicht:
1. ... Ka7+ 2. Kxc7 b8=D#
1. ... Ka8+ 2. Kxc7 b8=D#
A.Buchanan: Can probably be fixed by shunting everything to the left by 1 file. Alternatively, if one of the cooks can be suppressed, the other could represent a second solution. (2018-4-29)
Erich Bartel: keine cooks,
siehie dazu in Jugendschach (46) 6.01.1985, S.66-67,72,73
Theodor Steudel:Das Thema Null bei der Mattforderung,
Elmar Bartel & Erich Bartel:Nachbetrachtungen zum Thema Null,
Hans Gruber:Noch ein Wort zum Thema Null (2018-4-29)
A.Buchanan: OK danke, aber können Sie bitte hier schreiben, warum Weiss kann nicht 1... Ka7/8+ spielen. (2018-4-30)
A.Buchanan: Not reasonable to ask people to refer to 3 articles from a minor journal 33 years ago. Erich can you please give a simple explanation (English or German) for why 1... Ka7/8+ aren't cooks. Note that Thema Null is not a fairy condition but a theme: so what's going on? (2018-11-23)
A.Buchanan: By the way: I REALLY LIKE Thema Null. It is a wonderful theme. But I need clarity how it is intended to operate here. This was the only one of the Lese Majeste problems solved by Popeye v4.81 which was cooked. (2018-11-23)
more ...
comment
Keywords: Thema Null, Lese Majeste, Illegal position
Genre: h#
Computer test: Popeye prototype v4.81
Input: Erich Bartel, 2010-8-26
Last update: Alfred Pfeiffer, 2018-11-23 more...
88 - P1114930
Bernd Gräfrath
86 Variant Chess 62, p. 136, 10/2009
P1114930
(13+12) C+
BP in 8,0
Schlagschach
1. h4 b6 2. h5 Lb7 3. h6 Lxg2 4. hxg7 Lxh1 5. gxh8=T Dc8 6. Txh7 Kd8 7. Txh1 Lg7 8. Th8 Lxh8
play all play one stop play next play all
more ...
comment
Keywords: Ceriani-Frolkin Theme (T), Unique Proof Game, Losing Chess, Donati Theme, Homebase (w)
Genre: Retro, Fairies
Computer test: Jacobi+
Reprints: (A5) Quartz 35 08/2010
Input: Gerd Wilts, 2010-9-10
Last update: Alfred Pfeiffer, 2018-12-1 more...
89 - P1114933
Bernd Gräfrath
Variant Chess 2009
P1114933
(16+13)
BP in 8,5
Schlagschach
1. b4 Sc6 2. b5 Sa5 3. d4 h5 4. Dd3 Th7 5. Dxh7 f5 6. Dxg8 Sb3 7. Dxb3 g6 8. c4 e6 9. Dd1
play all play one stop play next play all
paul: Jacobi+ (2018-11-30)
comment
Keywords: Unique Proof Game, Pure Round Trip (D), Losing Chess
Genre: Retro, Fairies
Reprints: (A10) Quartz 35 08/2010
Input: Gerd Wilts, 2010-9-10
Last update: A.Buchanan, 2012-5-25 more...
90 - P1115039
Werner Speckmann
339 Die Schwalbe 12, p. 177, 06/1960
nach Civis Bononice, ca.1300
P1115039
(2+3) cooked
#11
1. Kb2? Kh2! 2. Kc2 Kg2 3. Kd2 Kf2 4. Tc3 a3 5. Txa3 a4 6. Tc3 a3 7. Txa3 Kf1 8. Ke3 Kg2 9. Ke2 Kg1 10. Kf3 Kh2 11. Kf2 Kh1 12. Th3# ist zu langsam
DL 11. Ta1 Kh3 12. Th1#
1. Kb1! Kh2! 2. Kb2 Kh1 3. Kc3 Kg2 4. Kc2 Kg1 5. Kd3 Kf2,Kh2 6. Kd2 Kg1 7. Ke1 Kg2 8. Ke2 Kg1 9. Kf3 Kh2 10. Kf2 Kh1 11. Th3#
Eine Studie zur Fernopposition.
DL 2. Kc1 Kg1 3. Kd1 Kf1 4. Tf3 Kg1 5. Ke1 wird auch #11
Deshalb führt auch die Verführung zum Ziel:
NL 1. Kb2 Kh2 2. Kc1! Kg1 3. Kd1 Kf1 4. Tf3 Kg1 5. Ke1 Kg2 6. Ta3 Kg1 7. Tg3+ Kh2! 8. Kf2 a3 9. Txa3 a4 10. Kf1 Kh1 11. Th3#
Später nochmals mit zusätzlichem sBa6 veröffentlicht.
play all play one stop play next play all
Tc
Anton Baumann: vergl. P1115040 (2018-12-9)
more ...
comment
Keywords: Miniature Collection (0215854), Minimal
Genre: n#
Input: Felber, Volker, 2010-9-11
Last update: Frank Müller, 2011-8-13 more...
91 - P1122930
Wiktor L. Schtscherbina
560 Mat (Tscherkassy) 13 01/1993
Maljutki 2. Preis
P1122930
(4+1)
#4
1. Ka3 Ka7 2. a6 Ka8 3. a7 Kxa7 4. Kb2#
play all play one stop play next play all
D23BK m
Mario Richter: vgl. mit P1357664 (2018-11-15)
comment
Keywords: Miniature Collection (0345240)
Genre: n#
Input: Zuncke/Bruder, 2010-9-11
Last update: Mario Richter, 2018-11-15 more...
92 - P1126975
T. A. Coombes
Chess 1942
P1126975
(3+4) C+
#2
1. Tc4
play all play one stop play next play all
E709 mm
more ...
comment
Keywords: Miniature Collection (0310142)
Genre: 2#
Computer test: Henrik Juel: C+ by Popeye 4.61 (2018-12-5)
Input: Zuncke/Bruder, 2010-9-11
Last update: Erich Bartel, 2018-12-5 more...
93 - P1133038
Josef Kupper
7768 Schweizerische Schachzeitung 1952
P1133038
(4+3)
#4
1. Db5 Lf2 (1... Lb6 2. Dc6+ Kb8 3. Dc8+ Ka7 4. Sc6#) 2. Dd7 Lb6 (2... La7 3. Dc6+ Kb8 4. Dc8#) 3. Dc8+ Ka7 4. Sc6#
play all play one stop play next play all
HX8 m
Sally: °
1. Db5! - Lf2, 2. Dd7+ [3. Sc6#] - Lb6,3. Dc8+ - Ka7,4. Sc6#
2. .... - La7, 3. Dc6+ - Kb8, 4. Dc8#
2. .... - Kb8, 3. Sc6+ - Ka8, 4. Dc8#.
1. .... - Lb6, 2. Da6+ - La7, 3. Dc6+ - Kb8, 4. Dc8#.
2. .... - Kb8, 3. Dc8+ - Ka7, 4. Sc6#.
1. .... - Ld4, 2. KxL, - Kb6, 3. Sc6+ - Ka8, 4. Da6#. (2018-12-7)
Henrik Juel: Acc. to Popeye 4.61 the side variation is partly dualistic
1... Lb6 2.Da6+ (not Dc6+) Kb8 3.Dc8+ Ka7 4.Sc6# is OK, but
2... La7 3.Dc6+,Kb4,Kc3,etc. Kb8 4.Dc8# (2018-12-7)
comment
Keywords: Miniature Collection (0329715)
Genre: n#
Input: Zuncke/Bruder, 2010-9-11
Last update: Zuncke/Bruder, 2010-9-11 more...
94 - P1148441
Josef Kupper
14226 Schweizerische Schachzeitung , p. 24, 11/2000
P1148441
(5+2)
#2
1... Kd4/Ke4/Kd6 2. Dd3/Dc4/Dd7;
1. g5? ... Kd6/Ke6/Kd4 2. Dd7/Dd7/Dd3;
1. Db2! (Zugzwang) ... Kd6,Ke6,Ke4,c4 2. De5, ... Kc4 2. Lf7
play all play one stop play next play all
A14-24- FFS
Sally: °
1. Ld7?/Da6? - Id6!/c4!
Radikalwechsel . Bildhübsch und kristallklar. (2018-12-7)
Henrik Juel: C+ by Popeye 4.61 (2018-12-7)
comment
Keywords: Miniature Collection (0216215)
Genre: 2#
Input: Felber, Volker, 2010-9-12
Last update: Felber, Volker, 2010-9-12 more...
95 - P1154857
Josef Kupper
14638 Schweizerische Schachzeitung , p. 32, 09/2007
P1154857
(6+1)
#4
1. Se6-d4!
play all play one stop play next play all
Sally: °
1. Sd4! - Kg5,
2. Bg7! - Kh6,
3. g8S+ - Kg5,
4. Sf3#.
2. ... - Kh4, 3. Sf3+ - Kh3, 4. g5#.
Ein Leckerbissen für den Problem - Freund. (2018-12-7)
Henrik Juel: C+ by Popeye 4.61 (2018-12-7)
comment
Keywords: Miniature Collection (0303581)
Genre: n#
Input: Felber, Volker, 2010-9-12
Last update: Felber, Volker, 2010-9-12 more...
96 - P1155134
John M. Rice
B Deutsche Schachzeitung , p. 110, 03/1982
P1155134
(5+2)
#2
1. T- auf der 3. Reihe? ... Th4!;
1. Th3? ... Th3!;
1. Tf2? ... Th4 2. g4, ... Tg2!;
1. g4! (2. Th3) ... Tf2+ 2. Tf2
play all play one stop play next play all
C92
vf: Doppelveröffentlichung: The Problemist, Januar 1986
Sally: Satz:
1. Ta3? - Th3/Txg2, 2. Th3#. Aber 1. ... - Th4!
1. Tf2? - Th3/Th4,, 2. gxh4#/g3#/g4#.Aber 1. ... - Txg2!
1. g4! (droht T..#/Tf2+, 2. Th3#/Txf2#.
Halbbatterie, die auf 1. .. - Th3 und 1. .. - Th4 erfolgen in der Verführung 1. Tf2? jeweils ein Abzugsmatt des wB unter Öffnung von zwei Batterien , in der Lösung als Mattwechsel ein solches des wT auf "h3". (2018-12-8)
comment
Keywords: Miniature Collection (0022965)
Genre: 2#
Input: Felber, Volker, 2010-9-12
Last update: Felber, Volker, 2010-9-12 more...
97 - P1158031
Philip Hamilton Williams
The Modern Chess Problem 1912
P1158031
(3+4) C+
#2
1. Td4
play all play one stop play next play all
E709 mm
Yoav Ben-Zvi: The unprovided bK flight f5 is given in the key of P1126975. (2018-12-5)
more ...
comment
Keywords: Miniature Collection (0308092)
Genre: 2#
Computer test: Popeye 4.61
Input: Zuncke/Bruder, 2010-9-12
Last update: Alfred Pfeiffer, 2018-12-6 more...
98 - P1159786
Otto B. Wurzburg
St. John Globe 1896
P1159786
(5+2) C+
#3
1. La7! h2 2. Tb6 Kg1 3. Tb1#
1. ... Kh2 2. Th6 Kh1 3. Txh3#
play all play one stop play next play all
INLT_ B26-3TT_
vf: Jakub Sova, 15.01.1914, Palabske obzur;
Virgil Ernesto Rosado, 1950, Cadule Ulasto;
Miroslav Klepacek, 07.1954, Ceskoslovensky sach;
a1<>h1, Dschemal Machatadse, 05.1992, Shamati

TO DO: Urdruckjahr prüfen - mehrere Quellen nennen 1892!
Sally: Der Durschschnittspunkt von Läufer und Turm, stimmen mit
dem Indischen Pr. überein. In der Anfangsstellung steht der
sK. neben dem Mattfelde. 1. Kritischer Läuferzug. Bauer -König zieht. 2. Sperrender Turmzug. König zieht in die Schusslinie des Läufers. 3. Mattsetzender Turmzug.
Nr. 46 Das Indische Pr. (Kohtz & Kockelkorn). (2012-2-10)
Gunter Jordan: In "Schach für Nußknacker" von Friedrich Chlubna ist auf S. 11 dieses Problem nachgedruckt worden mit der Kennzeichnung "Stefan Schneider, Wiener Schachnachrichten 1978"!! (2018-11-23)
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comment
Keywords: Miniature Collection (0056412), Indian, Miniature, Minimal (s), Batteriematt diagonal, Abzugsmatt, Model mate
Genre: 3#
Computer test: Popeye 4.61
Reprints: 944 Wiener Hausfrauen-Zeitung 5, p. 37, 31/01/1897
Schweizerische Schachzeitung , p. 133, 07/1901
308 Schachminiaturen 1902
46 Das Indische Problem 1903
Schweizerische Schachzeitung , p. 3, 01/1905
768 777 Chess Miniatures in Three 1908
3c-1489 2345 Chess Problems 1997
64 Schachexpress (DBSB) 02/2013
Input: Felber, Volker, 2010-9-12
Last update: Alfred Pfeiffer, 2018-11-24 more...
99 - P1161799
Ferad Kakabadze
3637 Problemist Pribushja 42 15/11/1993
P1161799
(3+4)
#12
SBD: No solution in 12 or 13 moves according to Gustav, and this same position appears in another database - diagram error/Diagrammfehler? (2014-6-21)
Anton Baumann: vergl. P1007360 : ohne sBg7 #8 (2018-11-27)
comment
Keywords: Miniature Collection (0345293)
Genre: n#
Input: Zuncke/Bruder, 2010-9-12
Last update: Zuncke/Bruder, 2010-9-12 more...
100 - P1162846
William A. Shinkman
233 American Chess Journal 1877
P1162846
(3+1) cooked
#4
1. Tg1 Kf5 2. Tf1+ Kg4 3. Tg7+ Kh3 4. Th1#
play all play one stop play next play all
Cook: NL
1. Tgf7+

Duplicate Diagram: P1357924

H27 ASc4
Verbesserungsvorschlag 01-12-1939: wTg7>g8
Alfred Pfeiffer: Symmetrieerhaltender Korrekturvorschlag von W. Pauly: +wBf5, beseitigt die NL 1.Tgf7+ (Dawson & Pauly "Assymetry" 1927, S. 133) (2013-6-15)
Henrik Juel: The neat correction by Pauly is C+ by Popeye 4.61,
but damages the letter O (2018-11-22)
comment
Keywords: Miniature Collection (0321704), Symmetrical position, Asymmetrical solution, Letter problem (O), Rex solus (s), Aristocrat
Genre: n#
Reprints: C5 ASymmetrie 2013
Input: Zuncke/Bruder, 2010-9-12
Last update: Alfred Pfeiffer, 2018-11-23 more...
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