Nice queen sacrifice from Lc0

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Jouni
Posts: 3604
Joined: Wed Mar 08, 2006 8:15 pm
Full name: Jouni Uski

Nice queen sacrifice from Lc0

Post by Jouni »

[pgn][Event "Classical Cup #4: Match 11 (30|5)"]
[Site "?"]
[Date "2025.04.08"]
[Round "1"]
[White "Stockfish"]
[Black "Lc0"]
[Result "1/2-1/2"]
[ECO "A40"]
[GameDuration "01:20:06"]
[GameEndTime "2025-04-08T08:13:54.594 PDT"]
[GameStartTime "2025-04-08T06:53:48.533 PDT"]
[Opening "Queen's pawn"]
[PlyCount "264"]
[Termination "adjudication"]
[TimeControl "1800+5"]
[Variation "Lundin (Kevitz-Mikenas) defense"]
[Link "https://www.chess.com/computer-chess-ch ... 11&game=15"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. Bg5 Nf6 5. Nc3 Ng6 6. h4 h6 7. Bd2 h5 8. Nf3 a6
9. Ng5 Bc5 10. Nge4 Nxe4 11. Nxe4 Be7 12. g3 d6 13. Nc3 Bg4 14. Qa4+ Bd7 15. Qb3
Rb8 16. e4 Qc8 17. Be2 Bg4 18. f3 Bd7 19. O-O-O c5 20. Rdf1 b5 21. Nd1 Kf8 22.
Bd3 Bf6 23. Ne3 Qc7 24. Ng2 b4 25. Be2 Qd8 26. Qe3 a5 27. Qf2 Kg8 28. g4 Qe8 29.
Kb1 a4 30. Bd1 Bc8 31. Bc1 Ra8 32. Re1 Bd7 33. Qg3 Bd8 34. Reg1 a3 35. b3 Ra7
36. Re1 Bc8 37. Qf2 hxg4 38. fxg4 f6 39. h5 Nf8 40. Nh4 Rh6 41. Qg2 Nh7 42. Bxh6
gxh6 43. g5 fxg5 44. Bg4 Rg7 45. Reg1 Bd7 46. Bxd7 Qxd7 47. Nf5 Qxf5 48. exf5
Bf6 49. Kc1 Kf8 50. Kd1 Re7 51. Qh3 Ke8 52. Re1 Kd7 53. Rh2 Kd8 54. Rhe2 Nf8 55.
Rg2 Nh7 56. Rge2 Re8 57. Rg2 Re7 58. Reg1 Kc7 59. Re2 Kd8 60. Qf3 Ke8 61. Rg4
Kd8 62. Re1 Kd7 63. Rgg1 Kd8 64. Rg2 Ke8 65. Rf1 Kd8 66. Re1 Ke8 67. Rgg1 Kd8
68. Rg4 Ke8 69. Rg2 Kd8 70. Rgg1 Kd7 71. Rg4 Kd8 72. Rgg1 Re8 73. Rg4 Kd7 74.
Re3 Kd8 75. Re1 Re7 76. Re2 Kd7 77. Rgg2 Kd8 78. Rg1 Re8 79. Rg4 Re7 80. Re3 Re8
81. Rge4 Nf8 82. Re1 Re7 83. Rxe5 Rxe5 84. Rxe5 Bxe5 85. f6 Kc7 86. Qf5 Kb7 87.
f7 Bg7 88. Qe4 Be5 89. Qf5 Bg7 90. Qe4 Be5 91. Qg4 Bg7 92. Kd2 Kc7 93. Qe4 Be5
94. Qf5 Kd8 95. Ke2 Bd4 96. Qe4 Be5 97. Kf1 Kc7 98. Qf5 Kd8 99. Kg2 Bd4 100. Qe4
Be5 101. Qg4 Bd4 102. Qe4 Be5 103. Qf3 Bd4 104. Qe2 Be5 105. Qd1 Kc7 106. Qg4
Kd8 107. Qh3 Bd4 108. Qf5 Bc3 109. Kf3 Be5 110. Ke4 Bh8 111. Kd3 Be5 112. Kc2
Bg7 113. Qf1 Be5 114. Qh3 Bf4 115. Qg4 Be5 116. Qf5 Bd4 117. Qe4 Be5 118. Qf3
Bh8 119. Qe3 Be5 120. Qf3 Bg7 121. Qe4 Be5 122. Qe1 Kc8 123. Qg1 Kd8 124. Qg4
Bb2 125. Qg3 Be5 126. Qh3 Bd4 127. Qf5 Bg7 128. Kb1 Be5 129. Qg4 Bg7 130. Qe2
Be5 131. Qg4 Bh8 132. Qe4 Be5 1/2-1/2[/pgn]

Even old and slow Lc0 has instantly:
Analysis by Lc0 v0.31.0:

1. +/- (0.85): 47...Qxf5 48.exf5 Bf6 49.Re1 Re7 50.Re3 Nf8 51.Rg3 Rg7 52.Re1 Nd7 53.Kc2
2. +- (8.27): 47...Nf6 48.Nxh6+ Kh7 49.Nf5 Rg8 50.Rf1 g4 51.Qd2 Kh8 52.Qh6+
Jouni
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Eelco de Groot
Posts: 4644
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Nice queen sacrifice from Lc0

Post by Eelco de Groot »

Promenade does not see it :P


[d]3b2k1/3q2rn/3p3p/2pPp1pP/1pP1P2N/pP6/P5Q1/1K4RR w - -

Code: Select all

Engine: PROMENADE 4 threads (1024 MB)
gemaakt door Stockfish authors and E. Nemeth

23/39  0:01   +2.60    47.Pf5 Pf6 48.Pxh6+ Kh8 49.Pf5 Tg8 
                       50.De2 Le7 51.Tf1 g4 52.Ph6 Tg7 
                       53.Thg1 Ld8 54.De3 Ph7 55.Pf5 Tg5 
                       56.Th1 Le7 57.Ph6 Kg7 58.Pf7 De8 
                       59.Pxg5 Lxg5 60.De2 (2.665.587) 1949 

24/41  0:01   +2.70    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Le7 51.Tf1 g4 52.De3 Ph7 
                       53.Dh6 Lg5 54.De6 Pf8 55.Dxd6 Dxd6 
                       56.Pxd6 Lf4 57.Pf5 Tg5 58.h6 Ph7 
                       59.d6 Pf6 60.Thg1 (3.255.814) 1954 

25/43  0:02   +2.76    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Pe8 51.Tf1 Kh7 52.Df3 Pf6 
                       53.Dg2 Kh8 54.h6 Kh7 55.Pg7 g4 
                       56.Thg1 Txg7 57.hxg7 Dxg7 58.De2 Dg6 
                       59.Tf5 Le7 60.Txf6 (4.296.001) 1950 

26/43  0:03   +2.91    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Le7 51.Tf1 Ld8 52.Df3 Te8 
                       53.De3 Pg4 54.De2 Pf6 55.Thg1 Tf8 
                       56.Df3 Ph7 57.h6 Le7 58.Dh5 Ld8 
                       59.Kc2 Tg8 60.Pg7 (6.830.873) 1893 

27/46  0:04   +2.93    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Le7 51.Tf1 Tf8 52.h6 Kh7 
                       53.Pg7 Dg4 54.Dxg4 Pxg4 55.Pf5 Tf7 
                       56.Pxe7 Txe7 57.Tf5 Kg6 58.Tg1 Kh5 
                       59.Tf8 Pxh6 60.Tf6 (8.864.105) 1907 

28/46  0:05   +2.87--  47.Pf5 Pf6 (9.771.132) 1917 

28/47  0:05   +2.84--  47.Pf5 Pf6 (9.840.535) 1915 

28/47  0:05   +2.80--  47.Pf5 Pf6 (9.922.079) 1912 

28/47  0:05   +2.86++  47.Pf5 (10.438.242) 1917 

28/47  0:05   +2.89    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Le7 51.Tf1 g4 52.De3 Ph7 
                       53.Dh6 Lg5 54.De6 Pf8 55.Dxd6 Dxd6 
                       56.Pxd6 Lf4 57.Pf5 Kh7 58.Thg1 Pd7 
                       59.Pe7 Tg5 60.d6 (10.629.496) 1918 

29/48  0:06   +2.89    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Le7 51.Tf1 Dd8 52.Thg1 Lf8 
                       53.De3 Kh7 54.Pg3 Pg4 55.Df3 Ph6 
                       56.Df6 De7 57.Tf2 g4 58.Tff1 De8 
                       59.Tg2 Le7 60.De6 (12.695.796) 1935 

30/50  0:10   +3.06++  47.Pf5 (20.312.162) 1957 

30/50  0:10   +2.85--  47.Pf5 Kh8 (21.527.202) 1962 

30/50  0:11   +2.94    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Ph7 51.Tf1 Tf8 52.h6 Le7 
                       53.Kc2 De8 54.Kd3 Tf6 55.Dg4 Df7 
                       56.Pe3 Tf4 57.De6 Df6 58.Pf5 Lf8 
                       59.Ke3 Tg4 60.Thg1 (22.507.587) 1959 

31/28  0:11   +2.90--  47.Pf5 Kh8 (22.998.385) 1958 

31/34  0:11   +2.87--  47.Pf5 Kh8 (23.062.840) 1958 

31/43  0:12   +2.93    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Ph7 51.Tf1 Tf8 52.h6 Le7 
                       53.Thg1 De8 54.Dg4 Tg8 55.Pg3 Tg6 
                       56.Th1 Pf6 57.Df5 Pg8 58.Df7 Dxf7 
                       59.Txf7 Tf6 60.Tg7 (24.314.043) 1960 

32/48  0:12   +2.95    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Ph7 51.Tf1 Tf8 52.h6 Le7 
                       53.Thg1 De8 54.Dg4 Tg8 55.Pg3 Tg6 
                       56.Th1 Kg8 57.Tf2 Lf8 58.Ph5 Txh6 
                       59.Pg3 Pf6 60.Dxg5+ (25.154.502) 1961 

33/51  0:15   +3.11++  47.Pf5 (30.926.802) 1977 

33/53  0:21   +3.20    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Ph7 51.Tf1 Tf8 52.h6 Le7 
                       53.Thg1 Dd8 54.Dh5 De8 55.Dg4 Tg8 
                       56.Pg3 Tg6 57.Th1 Dg8 58.Dd7 Lf8 
                       59.Tf7 g4 60.Th4 (42.549.500) 2025 

34/63  0:27   +3.34++  47.Pf5 (56.075.864) 2031 

34/63  0:34   +3.41    47.Pf5 Pf6 48.Pxh6+ Kh7 49.Pf5 Tg8 
                       50.Tf1 Kh8 51.Df3 Tf8 52.De2 Kh7 
                       53.Dg2 Tg8 54.Thg1 Kh8 55.Ph6 Tg7 
                       56.Tf5 Pg8 57.Tf8 Le7 58.Txg8+ Txg8 
                       59.Pxg8 Kxg8 60.Tf1 (71.116.315) 2060 

35/49  0:41   +3.50    47.Pf5 Pf6 48.Pxh6+ Kh7 49.Pf5 Tg8 
                       50.Tf1 Kh8 51.Df3 Tf8 52.De2 Kh7 
                       53.Dg2 Tg8 54.Thg1 Pe8 55.Df3 Pf6 
                       56.Tg3 Pe8 57.Dg2 Tf8 58.h6 Tf7 
                       59.Df3 Tf8 60.Tgg1 (86.393.757) 2080 

36/30  0:43   +3.42--  47.Pf5 Pf6 (90.139.985) 2077 

36/53  0:45   +3.39--  47.Pf5 Kh8 (95.632.643) 2079 

36/54  0:48   +3.46++  47.Pf5 (100.531.351) 2082 

36/57  0:56   +3.57    47.Pf5 Kh8 48.Pxh6 Dc7 49.De2 Pf6 
                       50.Pf5 Tg8 51.Tf1 Kh7 52.Thg1 Dd7 
                       53.De3 Pe8 54.Df3 Tf8 55.h6 Df7 
                       56.Dg4 Dg6 57.Pg3 Lf6 58.De6 Tg8 
                       59.Dd7+ Kh8 60.h7 (118.621.873) 2087 

37/52  1:15   +3.63    47.Pf5 Kh8 48.Pxh6 Le7 49.De2 Pf6 
                       50.De3 Ph7 51.Tf1 Ld8 52.Df3 g4 
                       53.Df5 Dxf5 54.Pxf5 Td7 55.Thg1 Pf6 
                       56.Kc2 Kg8 57.h6 Th7 58.Pe3 Txh6 
                       59.Pxg4 Pxg4 60.Txg4+ (155.414.727) 2070 

38/57  1:39   +3.80    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Pe8 51.Tf1 Dh7 52.Thg1 Tf8 
                       53.Tf3 Tg8 54.Tf2 Tf8 55.Tgf1 Dd7 
                       56.Dg4 Kh7 57.Tf3 Pg7 58.h6 Pe8 
                       59.Th1 Pc7 60.Dg2 (206.986.038) 2073 

39/59  1:39   +3.70--  47.Pf5 Kh8 (207.148.952) 2073 

39/60  1:47   +3.79    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Tf8 51.Tf1 Ph7 52.h6 Le7 
                       53.Thg1 De8 54.Dg4 Tg8 55.Pg3 Tg6 
                       56.Th1 Pf6 57.Df5 Pg8 58.Df7 Dxf7 
                       59.Txf7 Tf6 60.Tg7 (222.240.199) 2068 

40/63  2:18   +3.89    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Tf8 51.Tf1 Ph7 52.h6 Le7 
                       53.Thg1 De8 54.Dg4 Tg8 55.Pg3 Tg6 
                       56.Th1 Pf6 57.Df5 Pg8 58.Df7 Dxf7 
                       59.Txf7 Tf6 60.Tg7 (288.166.453) 2083 

41/66  3:14   +4.07++  47.Pf5 (404.294.483) 2080 

41/75  3:32   +4.10    47.Pf5 Kh8 48.Pxh6 Le7 49.Df3 Pf6 
                       50.De3 Ph7 51.Tf1 Ld8 52.Df3 Pf6 
                       53.Pf5 Tg8 54.Thg1 Tf8 55.De2 Ph7 
                       56.h6 Le7 57.Dh5 De8 58.Dg4 Tg8 
                       59.Pg3 Ld8 60.De6 (442.097.806) 2077 

42/69  5:20   +4.18    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Tf8 51.Tf1 Ph7 52.h6 Le7 
                       53.Thg1 De8 54.Dg4 Tg8 55.Pg3 Tg6 
                       56.Th1 Pf6 57.Df5 Ph7 58.Df7 Dxf7 
                       59.Txf7 Lf8 60.Pf5 (657.361.917) 2051 

43/69  6:19   +4.24    47.Pf5 Kh8 48.Pxh6 Pf6 49.Pf5 Tg8 
                       50.De2 Ph7 51.Tf1 Tf8 52.h6 Le7 
                       53.Thg1 Dd8 54.Dh5 De8 55.Dg4 Tg8 
                       56.Pg3 Tg6 57.Th1 Tg8 58.De6 Tg6 
                       59.Df7 Dxf7 60.Txf7 (774.913.645) 2041
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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Eelco de Groot
Posts: 4644
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Nice queen sacrifice no longer works if..

Post by Eelco de Groot »

This is not very interestng but Crystal is much better suited at investigating because it immediately detects the queen sac. Now I just changed the position (from the game) with white King much closer to the pawns and not in check because Queen would be moved as well.
After Nf5, now the Queen sacrifice no longer works because White can take back with 2.Kxf5{!} Black has not much better (as an alternative to the sac) than going back to pinning the Knight (because of the King on g4), and it seemed for a while this was a fortress (again) but Crystal discovers that White seemingly still can make enough progress, I just judged from the score, that White is winning in this fictitious position (diagram)

[d]3b2k1/5qrn/3p3p/2pPp1pP/1pP1P1KN/pP6/P5Q1/6RR w - -
1.Nf5 Qxf5 {?!} 2.Kxf5

After 1... Qd7 {probably best}, the best five moves:


[d]3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P1K1/pP6/P5Q1/6RR w - -

Engine: Crystal 6 PMT (1024 MB)
gemaakt door the Stockfish developers (see AUTHORS f

45 127:41 +2.52 2.De2 Tf7 3.Tf1 Lf6 4.Tf2 Lg7 5.Thf1 Kh8
6.Kg3 Tf8 7.Kg2 Tf6 8.Kh2 Tf7 9.Df3 Lf8
10.Dd3 Lg7 11.Dh3 Tf8 12.Kg2 Tf7
13.Tf3 Tf8 14.Tg3 Dd8 15.Kg1 (6.501.335.060) 848

44 127:41 +2.53 2.Tf1 Tf7 3.De2 Tf8 4.Tf2 Kh8 5.Thf1 Lf6
6.Kg3 Lg7 7.Kg2 Tf6 8.De3 Lf8 9.Kh2 Tf7
10.Dg3 Lg7 11.Dh3 Tf8 12.Kg2 Tf7
13.Tf3 Tf8 14.Tg3 Ta8 15.Kg1 (6.501.335.060) 848

44 127:41 +2.34 2.Dc2 Tf7 3.Tf1 Lf6 4.Tf2 Lh8 5.De2 Tf6
6.Thf1 Kf8 7.Kg3 Ke8 8.Dg4 Kd8 9.Kg2 Ke8
10.Dg3 Dd8 11.Tf3 Dd7 12.Kg1 Dc8
13.Dg4 Dd7 14.Kh2 Kd8 15.Kg2 (6.501.335.060) 848

44 127:41 +2.31 2.Tb1 Tf7 3.Tbf1 Lf6 4.De2 Lh8 5.Tf2 Tf6
6.Thf1 Kf8 7.Kg3 Ke8 8.Kh2 Dc8 9.Dg4 Dd7
10.Kg2 Kd8 11.Tf3 Ke8 12.Dg3 Dc7
13.Df2 Kd8 14.Kg1 Dd7 15.Pxh6 (6.501.335.060) 848

44 127:41 +2.23 2.Te1 Tf7 3.Tef1 Lf6 4.De2 Lh8 5.Tf2 Tf6
6.Thf1 Kf8 7.Kg3 Ke8 8.Kg2 Dc8 9.Dg4 Dd7
10.Dg3 Dd8 11.Tf3 Dd7 12.Dh3 Kd8
13.Dg4 Ke8 14.Dg3 Dc7 15.Df2 (6.501.335.060) 848
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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peter
Posts: 3358
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Nice queen sacrifice from Lc0

Post by peter »

Nice find, Jouni.

SF after some Forward- Backward with 30 threads of 16x3.5GHz CPU, 8 G hash, SyzygyProbeLimit=0 and MultiPV=4 in depth 35 (about 5 minutes of ponder- time after last Backward):

[d]3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - - 0 1

Code: Select all

Analysis by Stockfish 17.1:

1. +- (3.12):  47...Dxf5 48.exf5 Lf6 49.Df2 Te7 50.Kc1 Kf8 51.Dd2 Ke8 52.Tg2 Kd7 53.Thh2 Kc7 54.Dd3 Kb6 55.Tg4 Sf8 56.Thg2 Tg7 57.De4 Tg8 58.Df3 Sd7 59.De2 Kc7 60.Df1 Kb6 61.Kb1 Ta8 62.Tg1 Kc7 63.Th1 Tg8 64.De2 Kb6 65.Tgg1 Ta8 66.Te1 Tg8

2. +- (5.27):  47...Sf6 48.Sxh6+ Kh8 49.Sf5 Tg8 50.De2 Le7 51.Tf1 g4 52.De3 Sh7 53.Dh6 Lg5 54.De6 Sf8 55.Dxd6 Dxd6 56.Sxd6 Le3 57.Sf5 Lf4 58.Thg1 Kh7 59.d6 Tg5 60.Tg2 Sd7 61.Tfg1 Sf6 62.d7 Sxd7 63.Txg4 Txg4 64.Txg4 Sf6 65.Tg7+ Kh8 66.Tg6 Sxe4 67.Kc2 Sc3

3. +- (5.60):  47...Kh8 48.Sxh6 Sf6 49.Sf5 Tg8 50.De2 g4 51.De3 Se8 52.Dh6+ Dh7 53.Dg6 Sf6 54.Sxd6 Tf8 55.Kc2 Dxg6 56.hxg6+ Kg7 57.Sf5+ Kxg6 58.Se3 Kg5 59.Tg2 Kf4 60.Kd3 Kg5 61.Thg1 Tf7 62.Sxg4 Sxg4 63.Txg4+ Kf6 64.Tf1+ Ke7 65.Txf7+ Kxf7 66.Tg1 Kf8 67.Tg6 Le7 68.Te6 Kf7 69.Txe5 Lf6 70.Tf5

4. +- (5.68):  47...g4 48.Sxh6+ Kh8 49.Sxg4 De8 50.De2 Lg5 51.Se3 Tf7 52.Tf1 Lf4 53.Sf5 Tf8 54.Thg1 Sg5 55.Sxd6 De7 56.Sf5 Dd8 57.Dg4 Tg8 58.Sh4 De8 59.Sg6+ Txg6 60.hxg6 Kg7
BTW. it's game nr. 15 out of the given match. SF took quite a while to have drawing evals online. Here's the local installation of mine again after 80 moves:

[d]3kr3/7n/3p1b1p/2pPpPpP/1pP3R1/pP2RQ2/P7/3K4 w - - 0 1

Code: Select all

Analysis by Stockfish 17.1:

81.Tg2 Te7 82.De4 Ke8 83.Ke2 Kf7 84.Kf3 Kg7 85.Db1 Kf7 86.Te4 Te8 87.Th2 Sf8 88.Kg3 Sd7 89.Th1 Tg8 90.Kg2 Te8 91.Th3 Tg8 92.Kh1 Ke7 93.Th2 Ke8 94.Tb2 Ke7 95.Tg2 Ke8 96.Teg4 Sf8 97.Txg5 hxg5 98.h6 Sh7 99.Th2 Th8 100.Dd3 Kf7 101.Tg2 Te8 102.Te2 Th8 103.Th2 Ke7 104.De2 Kf8 105.Kg2 Ke8 106.Dh5+ Ke7 107.Kh1 Tg8 108.Tg2
 Tiefe: 52/84 00:00:50 2371MN
 +/- (1.03)
And after Backward of these 80 moves to position after 47.Nf5:

Code: Select all

3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - - 0 1

Analysis by Stockfish 17.1:

47...Dxf5 48.exf5 Lf6 49.Df3 Kf8 50.Tg2 Ke8 51.Te1 Te7 52.Kc2 Kd8 53.Tg4 Kc7 54.Dh1 Kd8 55.Kd2 Kc7 56.Teg1 Tg7 57.Ke1 Sf8 58.T4g2 Sd7 59.Kf1 Kb6 60.Tf2 Kc7 61.Tg4 Tf7 62.Tg3 Tf8 63.Dh3 Tg8 64.Tgg2 Tg7 65.Td2 Tg8 66.Td1 Sf8 67.Tg1 Sd7 68.Ta1 Sf8 69.Te1 Tg7 70.Td1 Sd7 71.Kg2 Tg8 72.Dd3 Tg7 73.Kf1 Tg8 74.De3 Tg7 75.Td2 Kb6 76.De4 Kc7 77.De1 Kb6 78.Tgg2 Tg8 79.Td1
 Tiefe: 60 00:04:24 8922MN
 +- (1.99)
Would need some more hardware- time and hash for a Backward with this one engine to get even lower evals then probably, yet I guess, position might well be a fortress already after the Queen- sac. As Eelco showed, Crystal chooses 47...Qxf5 even started with empty hash quickly, here's its output after new GUI- start, 32G hash, same 30 threads as SF dev. before, again SyzygyProbeLimit=0:

Code: Select all

3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - - 0 1

Analysis by Crystal dev-20240503-930126e0:

47...Dxf5 48.exf5 Lf6 49.Th3 Te7 50.Te3 Sf8 51.Kc2 Kf7 52.Kd1 Sd7 53.Dh3 Sf8 54.Ke1 Ke8 55.Tg4 Kf7 56.Tg2 Ke8 57.Kf2 Kf7 58.Te2 Ke8 59.Tg4 Tf7 60.Txe5+ Lxe5 61.f6 Txf6+ 62.Ke2
 Tiefe: 27/56 00:05:41 24861MN
 +/= (0.65)
As far as I was watching, I didn't see any other best move in output over all the ponder- time after 5" onwards (waited just for getting rather stable eval), had 2 more trials with same conditions, best move was chosen always <5", regards
Peter.
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Jouni
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Joined: Wed Mar 08, 2006 8:15 pm
Full name: Jouni Uski

Re: Nice queen sacrifice from Lc0

Post by Jouni »

Obsidian 15 and newer versions find -Qxf5 fast, but with +3 evaluation.
Jouni
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peter
Posts: 3358
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Nice queen sacrifice from Lc0

Post by peter »

Jouni wrote: ↑Wed Apr 09, 2025 1:25 pm Obsidian 15 and newer versions find -Qxf5 fast, but with +3 evaluation.
It's a typical test position, where finding best move is one thing, getting 0.00- near eval's a second one, as for fortresses like this, that's the much harder task. Lc0 (tried 0.31.2 with 6147500PT- net and 3070ti GPU) doesn't come near to 0.00 quickly neither.

Here's Crystal again with some more ponder- time, yet again started with empty hash of 32G with 30 threads:

Code: Select all

3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - - 0 1

Analysis by Crystal dev-20240503-930126e0:

47...Kh8 
  Weiß steht deutlich besser.  
  +- (1.61)  Tiefe: 1/5   00:00:03  9332Knoten
...
47...Sf6 48.Sxh6+ Kh8 49.Df3 Kh7 50.Sf5 g4 51.De3 
  Weiß steht deutlich besser.  
  +- (2.30)  Tiefe: 10/20   00:00:03  2149kN
47...Dxf5 48.exf5 Sf6 49.Kc1 Tf7 50.Dc2 Kh7 51.Te1 Te7 
  Weiß steht deutlich besser.  
  +- (2.26)  Tiefe: 11/27   00:00:04  8127kN
...
47...Kh8 48.Sxh6 Sf6 49.Df3 Kh7 50.Sf5 Tg8 51.Tf1 Tf8 52.Thg1 Tg8 53.Tg3 Tf8 54.Dg2 Sg8 55.Tgf3 Kh8 56.h6 Dh7 57.Kc1 Le7 58.Dg4 Sxh6 59.Sxe7 
  Weiß hat entscheidenden Vorteil.  
  +- (2.58)  Tiefe: 16/41   00:00:05  47658kN
47...Dxf5 
  Weiß steht deutlich besser.  
  +- (2.37 ++)  Tiefe: 17/52   00:00:06  104MN
47...Dxf5 
  Weiß steht deutlich besser.  
  +- (2.26 ++)  Tiefe: 17/52   00:00:06  105MN
47...Dxf5 
  Weiß steht deutlich besser.  
  +- (2.10 ++)  Tiefe: 17/52   00:00:06  107MN
47...Dxf5 
  Weiß steht deutlich besser.  
  +- (1.90 ++)  Tiefe: 17/52   00:00:07  114MN
47...Dxf5 
  Weiß steht deutlich besser.  
  +- (1.63 ++)  Tiefe: 17/52   00:00:07  118MN
47...Dxf5 
  Weiß steht besser.  
  +/- (1.28 ++)  Tiefe: 17/52   00:00:07  125MN
...
47...Dxf5 48.exf5 Lf6 49.Dc2 Tb7 50.Kc1 Te7 51.Te1 Kg7 52.Kb1 Kf8 53.Th3 Ke8 54.The3 Sf8 55.Dd1 Kf7 56.Dd3 Ke8 57.Txe5 Txe5 
  Weiß steht besser.  
  +/- (1.01 ++)  Tiefe: 18/31   00:00:07  145MN
...
47...Dxf5 48.exf5 Lf6 49.Dc2 Tb7 50.Kc1 Te7 51.Te1 Kg7 52.Kb1 Kf8 53.Th3 Ke8 54.The3 Sf8 55.Dd1 Kf7 56.Dd3 Ke8 57.Txe5 Txe5 
  Weiß steht etwas besser.  
  +/= (0.33 ++)  Tiefe: 18/41   00:00:08  192MN
47...Dxf5 48.exf5 Lf6 49.Dc2 Tf7 50.Dd3 Kf8 51.Dg3 Td7 52.Kc1 Ke8 53.Te1 Te7 54.Dh3 Kd8 55.Te3 Kc7 56.Te4 Kd8 
  Die Stellung ist ausgeglichen.  
  = (0.08)  Tiefe: 18/41   00:00:10  265MN
...
47...Dxf5 48.exf5 Lf6 49.Dh3 Kf8 50.Te1 Te7 51.Te2 Ke8 52.Kc1 Kd7 53.The1 Kd8 54.Td1 Ke8 55.Tee1 Kd8 56.Kc2 Ke8 57.Df3 Kd7 58.Th1 Kd8 59.Tde1 Kd7 60.De3 Kd8 61.Dc1 Kc7 62.Teg1 Kd7 63.Tg4 Kc7 64.Te1 Kd8 65.Te3 
  Die Stellung ist ausgeglichen.  
  = (0.01)  Tiefe: 33/53   00:02:56  11946MN
47...Dxf5 48.exf5 Lf6 49.Dh3 Kf8 50.Te1 Te7 51.Te2 Ke8 52.Kc1 Kd8 53.Kc2 Kd7 54.Dg4 Kd8 55.The1 Sf8 56.Txe5 Txe5 57.Txe5 Lxe5 58.f6 Ld4 59.f7 Lf6 60.Kb1 Le5 61.Dg1 Kd7 62.Kc1 Kd8 63.Kd2 Kc7 64.Df1 Kd8 65.Ke2 Kc7 66.Df5 Lg7 67.Dh3 Kd8 68.Kf3 Ld4 69.Df1 Le5 70.Ke4 Kd7 71.Df5+ Kd8 72.Df2 Lg7 73.De3 Le5 74.Kf5 Kc7 
  Die Stellung ist ausgeglichen.  
  = (0.00)  Tiefe: 34/63   00:03:51  15910MN
...
47...Dxf5 48.exf5 Lf6 49.Dh3 Kf8 50.Te1 Te7 51.Te2 Ke8 52.Kc1 Kd7 53.The1 Sf8 54.Tg1 Sh7 
  Die Stellung ist ausgeglichen.  
  = (0.00)  Tiefe: 44/61   00:10:07  33279MN
Peter.
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peter
Posts: 3358
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: Nice queen sacrifice from Lc0

Post by peter »

Edit- time over. As for the output I pasted above latest, I'm not sure anymore, if it was really started with empty hash (suspicious little time to depth and depth to eval), so I gave it one more LTC- try, again 30 threads and 32G hash, this time for sure after restart of GUI (F19):

Code: Select all

 
3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - - 0 1

Analysis by Crystal dev-20240503-930126e0:

47...Kh8 48.Sxh6 Sf6 49.Sf5 Tg8 50.De2 g4 51.De3 Sh7 52.Dh6 
  Weiß steht deutlich besser.  
  +- (2.29)  Tiefe: 10/24   00:00:00
47...Dxf5 48.exf5 Sf6 49.Kc1 Kf8 50.Te1 Te7 51.Dh2 Kg8 52.Teg1 Tf7 53.Dd2 Kf8 
  Weiß steht deutlich besser.  
  +- (2.26)  Tiefe: 11/24   00:00:00
47...Kh8 48.Sxh6 Sf6 49.Sf5 Tg8 50.Df3 Tf8 51.Tf1 Tg8 52.Tf2 Sh7 53.De3 Tf8 54.Dg3 Tf6 55.h6 
  Weiß steht deutlich besser.  
  +- (2.30)  Tiefe: 12/27   00:00:00
...
47...Kh8 48.Sxh6 g4 49.Sxg4 Tg8 50.h6 De8 51.De2 Tf8 52.Se3 Sg5 53.h7 Dg6 54.Dc2 Dg7 55.Sf5 Txf5 56.exf5 e4 57.f6 Lxf6 58.Dh2 
  Weiß hat entscheidenden Vorteil.  
  +- (2.52)  Tiefe: 17/33   00:00:01  48710kN
47...Dxf5 48.exf5 Lf6 49.Te1 Te7 50.Kc1 Te8 51.Dg4 Sf8 52.Dh3 Kg7 53.De3 Te7 54.Td1 Sh7 55.Kd2 Kf8 56.Ta1 
  Weiß steht besser.  
  +/- (0.76)  Tiefe: 18/44   00:00:03  125MN
...
47...Dxf5 48.exf5 Lf6 49.Te1 Te7 50.Thg1 Te8 51.Dh3 Kf7 52.Tg2 Te7 53.Kc2 Kg7 54.Tg3 Te8 55.Kd1 Kf7 56.Tge3 Sf8 57.Txe5 Txe5 58.Txe5 Lxe5 59.f6 Kxf6 60.Kc2 Ke7 61.Dc8 Lf4 62.Dc7+ Sd7 
  Weiß steht etwas besser.  
  +/= (0.61)  Tiefe: 24/57   00:00:19  1236MN
...
47...Dxf5 48.exf5 Lf6 49.Te1 Te7 50.Dg4 Kf7 51.Th2 Sf8 52.Tg2 Sh7 53.Dh3 Te8 54.Th1 Te7 55.Thg1 Kg7 56.Te1 Kf7 57.Kc2 Kg7 58.Tg4 Kf7 59.Tge4 Sf8 60.Dg4 Te8 61.Txe5 Txe5 62.Txe5 Lxe5 63.f6 
  Weiß hat minimalen Vorteil.  
  = (0.28)  Tiefe: 25/52   00:00:29  1979MN
...
47...Dxf5 48.exf5 Lf6 49.Dh3 Te7 50.Te1 Kf7 51.Kc2 Kg7 52.Te2 Kf7 53.The1 Sf8 54.Th2 Kg7 55.Tg2 Sh7 56.Tg4 Kf7 57.Teg1 Kg7 58.Kd3 Tf7 59.T4g3 Tf8 60.Ke2 Tf7 61.Te3 Te7 62.Kf3 Kf7 63.Tge1 Sf8 64.Kg2 Ke8 65.T1e2 Kd8 66.Te4 
  Die Stellung ist ausgeglichen.  
  = (0.15 ++)  Tiefe: 36/63   00:11:28  47922MN
47...Dxf5 48.exf5 Lf6 49.Te1 Te7 50.Dh3 Kf7 51.Thg1 Ke8 52.Dg2 Kf7 53.Df3 Kf8 54.Tg4 Kf7 55.Tge4 Sf8 56.Dh3 Te8 57.T1e2 Kg7 58.Kc2 Te7 59.Kd2 Kf7 60.Txe5 Txe5 61.Txe5 Lxe5 62.f6 Kxf6 63.Kd1 Kf7 64.Df5+ Ke7 65.Dc8 Sd7 
  Die Stellung ist ausgeglichen.  
  = (0.13)  Tiefe: 36/76   00:18:49  79006MN
47...Dxf5 48.exf5 Lf6 49.Te1 Te7 50.Te4 Kg7 51.Dc2 Sf8 52.Df2 Kf7 53.Kc2 Kg7 54.Dh2 Sh7 55.Dh3 Sf8 56.Tg1 Sh7 57.Kd3 Te8 58.Tg3 Te7 59.Ke2 Te8 60.Tge3 Sf8 61.Tg4 Sh7 62.Df3 Te7 63.Txe5 Txe5+ 64.Te4 Kf7 65.Kf1 Txe4 66.Dxe4 Sf8 67.De2 Le5 68.f6 Kxf6 69.Df3+ Ke7 70.Dh3 Lg7 71.Dc8 
  Die Stellung ist ausgeglichen.  
  = (0.11)  Tiefe: 37/71   00:26:48  112821MN
Seems the even much shorter time to 0.00- eval before was a very lucky run or there yet were hash- rests at restart not fully deleted. Yet this time there was a long fail high between 36th and 37th iteration, so this one could have been a rather unlucky run too.

Something I find even more noticable, Crystal stays stable on best move single threaded also at once and eval get's a drawish- one or at least one of a non decisive advantage for White rather quickly too:

Code: Select all

3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - -

Engine: Crystal 241216 (1024 MB)
von the Stockfish developers (see AUTHORS f

15/40  0:01   +2.70    1...Kh8 2.Sxh6 Sf6 3.Sf5 Tg8 4.De2 Le7 
                       5.Sh6 Tf8 6.Tf1 Sg8 7.Txf8 Lxf8 
                       8.Dg4 Dxg4 9.Sxg4 Sh6 10.Tf1 Kg8 
                       11.Se3 (1.076.506) 945 

16/39  0:01   +2.40    1...Dxf5 2.exf5 Sf6 3.Te1 Te7 4.Thg1 Kh7 
                       5.Dh2 Lb6 6.Txg5 hxg5 7.Tg1 g4 (1.942.360) 988 

17/52  0:07   +2.00    1...Dxf5 2.exf5 Lf6 3.Dc2 Te7 4.Dd3 Kg7 
                       5.Te1 Te8 6.Te2 Te7 7.The1 Kf8 8.Te4 Kf7 (8.496.590) 1159 

18/59  0:11   +1.40++  1...Dxf5 (13.742.896) 1197 

18/59  0:12   +1.15++  1...Dxf5 (14.911.430) 1219 

18/59  0:18   +0.95    1...Dxf5 2.exf5 Lf6 3.Dc2 Te7 4.Dd3 Kg7 
                       5.Te1 Kf7 6.Te3 Kg7 7.Kc2 Kf7 8.Tg1 Kg8 
                       9.Tge1 Kf7 10.Te4 Sf8 11.Df1 Te8 
                       12.Txe5 Txe5 13.Txe5 Lxe5 14.f6 Lxf6 (24.975.431) 1349 

19/37  0:18   +1.10++  1...Dxf5 (25.015.516) 1349 
...
20/62  0:51   +0.70++  1...Dxf5 (83.664.143) 1623 

20/62  0:52   +0.75    1...Dxf5 2.exf5 Lf6 3.Dc2 Te7 4.Tf1 Kf8 
                       5.Th3 Kf7 6.Thf3 Kg7 7.Te1 Kf7 8.Te2 Kg7 
                       9.Tg3 Te8 10.Th2 Te7 11.Tgh3 Te8 
                       12.Te3 Sf8 13.Kc1 Sh7 14.Tee2 Sf8 (85.731.003) 1631 
...

21/59  1:02   +0.40++  1...Dxf5 (104.538.627) 1672 
...

21/60  1:26   +1.20    1...Dxf5 2.exf5 Lf6 3.Dc2 Te7 4.Tf1 Kf8 
                       5.Te1 Te8 6.Thg1 Kf7 7.Te4 Kg7 8.Df2 Te7 
                       9.Tge1 Kf7 10.T4e3 Sf8 11.Tg1 Te8 
                       12.Tee1 Te7 13.Kc2 Sh7 14.Tef1 (150.628.116) 1748 
...

22/61  1:35   +1.20++  1...Dxf5 (168.072.596) 1761 

22/61  1:42   +1.30    1...Dxf5 2.exf5 Lf6 3.Dc2 Te7 4.Te1 Kf7 
                       5.Thg1 Kg7 6.Te3 Kf7 7.Tge1 Sf8 
                       8.Txe5 Txe5 9.Txe5 Lxe5 10.f6 Kxf6 
                       11.De4 Ke7 12.Dd3 Lb2 13.Df5 Lf6 
                       14.Kc2 Kf7 (178.520.866) 1734 
...

23/60  2:25   +1.00++  1...Dxf5 (256.402.119) 1767 
23/63  8:58   +0.85++ 1...Dxf5 (1.071.232.028) 1989
Peter.
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chessica
Posts: 905
Joined: Thu Aug 11, 2022 11:30 pm
Full name: Esmeralda Pinto

Re: Nice queen sacrifice from Lc0

Post by chessica »

Jouni wrote: ↑Tue Apr 08, 2025 5:55 pm [pgn][Event "Classical Cup #4: Match 11 (30|5)"]
[Site "?"]
[Date "2025.04.08"]
[Round "1"]
[White "Stockfish"]
[Black "Lc0"]
[Result "1/2-1/2"]
[ECO "A40"]
[GameDuration "01:20:06"]
[GameEndTime "2025-04-08T08:13:54.594 PDT"]
[GameStartTime "2025-04-08T06:53:48.533 PDT"]
[Opening "Queen's pawn"]
[PlyCount "264"]
[Termination "adjudication"]
[TimeControl "1800+5"]
[Variation "Lundin (Kevitz-Mikenas) defense"]
[Link "https://www.chess.com/computer-chess-ch ... 11&game=15"]

1. d4 Nc6 2. c4 e5 3. d5 Nce7 4. Bg5 Nf6 5. Nc3 Ng6 6. h4 h6 7. Bd2 h5 8. Nf3 a6
9. Ng5 Bc5 10. Nge4 Nxe4 11. Nxe4 Be7 12. g3 d6 13. Nc3 Bg4 14. Qa4+ Bd7 15. Qb3
Rb8 16. e4 Qc8 17. Be2 Bg4 18. f3 Bd7 19. O-O-O c5 20. Rdf1 b5 21. Nd1 Kf8 22.
Bd3 Bf6 23. Ne3 Qc7 24. Ng2 b4 25. Be2 Qd8 26. Qe3 a5 27. Qf2 Kg8 28. g4 Qe8 29.
Kb1 a4 30. Bd1 Bc8 31. Bc1 Ra8 32. Re1 Bd7 33. Qg3 Bd8 34. Reg1 a3 35. b3 Ra7
36. Re1 Bc8 37. Qf2 hxg4 38. fxg4 f6 39. h5 Nf8 40. Nh4 Rh6 41. Qg2 Nh7 42. Bxh6
gxh6 43. g5 fxg5 44. Bg4 Rg7 45. Reg1 Bd7 46. Bxd7 Qxd7 47. Nf5 Qxf5 48. exf5
Bf6 49. Kc1 Kf8 50. Kd1 Re7 51. Qh3 Ke8 52. Re1 Kd7 53. Rh2 Kd8 54. Rhe2 Nf8 55.
Rg2 Nh7 56. Rge2 Re8 57. Rg2 Re7 58. Reg1 Kc7 59. Re2 Kd8 60. Qf3 Ke8 61. Rg4
Kd8 62. Re1 Kd7 63. Rgg1 Kd8 64. Rg2 Ke8 65. Rf1 Kd8 66. Re1 Ke8 67. Rgg1 Kd8
68. Rg4 Ke8 69. Rg2 Kd8 70. Rgg1 Kd7 71. Rg4 Kd8 72. Rgg1 Re8 73. Rg4 Kd7 74.
Re3 Kd8 75. Re1 Re7 76. Re2 Kd7 77. Rgg2 Kd8 78. Rg1 Re8 79. Rg4 Re7 80. Re3 Re8
81. Rge4 Nf8 82. Re1 Re7 83. Rxe5 Rxe5 84. Rxe5 Bxe5 85. f6 Kc7 86. Qf5 Kb7 87.
f7 Bg7 88. Qe4 Be5 89. Qf5 Bg7 90. Qe4 Be5 91. Qg4 Bg7 92. Kd2 Kc7 93. Qe4 Be5
94. Qf5 Kd8 95. Ke2 Bd4 96. Qe4 Be5 97. Kf1 Kc7 98. Qf5 Kd8 99. Kg2 Bd4 100. Qe4
Be5 101. Qg4 Bd4 102. Qe4 Be5 103. Qf3 Bd4 104. Qe2 Be5 105. Qd1 Kc7 106. Qg4
Kd8 107. Qh3 Bd4 108. Qf5 Bc3 109. Kf3 Be5 110. Ke4 Bh8 111. Kd3 Be5 112. Kc2
Bg7 113. Qf1 Be5 114. Qh3 Bf4 115. Qg4 Be5 116. Qf5 Bd4 117. Qe4 Be5 118. Qf3
Bh8 119. Qe3 Be5 120. Qf3 Bg7 121. Qe4 Be5 122. Qe1 Kc8 123. Qg1 Kd8 124. Qg4
Bb2 125. Qg3 Be5 126. Qh3 Bd4 127. Qf5 Bg7 128. Kb1 Be5 129. Qg4 Bg7 130. Qe2
Be5 131. Qg4 Bh8 132. Qe4 Be5 1/2-1/2[/pgn]

Even old and slow Lc0 has instantly:
Analysis by Lc0 v0.31.0:

1. +/- (0.85): 47...Qxf5 48.exf5 Bf6 49.Re1 Re7 50.Re3 Nf8 51.Rg3 Rg7 52.Re1 Nd7 53.Kc2
2. +- (8.27): 47...Nf6 48.Nxh6+ Kh7 49.Nf5 Rg8 50.Rf1 g4 51.Qd2 Kh8 52.Qh6+
Crystal 5 KWK:
[d]3b2k1/3q2rn/3p3p/2pPpNpP/1pP1P3/pP6/P5Q1/1K4RR b - - 1 47

Code: Select all

Crystal 5 KWK:
 8/12	00:00,028	 58k	2.058k	-3,74	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 h5-h6 Kh8-h7 Th1-g1
 8/13	00:00,028	 58k	2.058k	-3,56	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 h5-h6 Tg8-g5
 8/9	00:00,028	 58k	2.058k	-3,38	Dd7xf5 e4xf5 Sh7-f6 Kb1-c2 Tg7-h7 Kc2-d1 Th7-h8 Dg2-d2
---------------------------------------------------------------------------
 9/14	00:00,085	 285k	3.350k	-3,83	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 h5-h6 Tg8-g5 h6-h7
 9/12	00:00,085	 285k	3.350k	-3,49	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 h5-h6 Tg8-g5 h6-h7 g4-g3
 9/11	00:00,085	 285k	3.350k	-3,36	Dd7xf5 e4xf5 Sh7-f6 Kb1-c2 Ld8-a5 Kc2-d1 Kg8-f8 Th1-h4 Tg7-g8 Th4-h2
---------------------------------------------------------------------------
 10/15	00:00,121	 554k	4.577k	-3,72	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 g5-g4 Tg1-f1 Dd7-c7 Kb1-c2 Dc7-d7 De2-e3 Sf6-h7 De3-h6 g4-g3
 10/16	00:00,121	 554k	4.577k	-3,58	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 g5-g4 Tg1-f1 Dd7-c7 Kb1-c2 Dc7-d7 De2-e3 Sf6-h7 De3-h6 g4-g3 Sf5xd6
 10/16	00:00,121	 554k	4.577k	-3,34	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Ld8-c7 Te1xe5 d6xe5 d5-d6 Lc7xd6 Dg2-a8+ Ld6-f8 Da8-c6
---------------------------------------------------------------------------
 11/18	00:00,177	 1.067k	6.027k	-3,74	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Kh8-h7 Th1-h2 Ld8-e7 h5-h6 Tg8-g6 Sf5-g7
 11/16	00:00,177	 1.067k	6.027k	-3,58	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 g5-g4 Tg1-f1 Dd7-c7 Th1-g1 Tg8-g5 h5-h6 Dc7-d7 Sf5-g7
 11/13	00:00,177	 1.067k	6.027k	-3,40	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Ld8-e7 Te1xe5 d6xe5 d5-d6 Le7xd6 Dg2-a8+ Ld6-f8 Da8-c6
---------------------------------------------------------------------------
 12/24	00:00,230	 1.711k	7.437k	-3,88	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 g5-g4 De2-e3 Sf6-h7 De3-h6 Ld8-g5 Dh6-e6 Sh7-f6 Sf5xd6
 12/19	00:00,230	 1.711k	7.437k	-3,67	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Dg2-f3 Ld8-e7 Df3-e3 Le7-f8 Tg1-f1 g5-g4 Th1-g1 Dd7-f7 Tf1-f2 Df7xh5 De3-e2
 12/21	00:00,230	 1.711k	7.437k	-3,25	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Tg7-e7 Kb1-c1 Kg8-f8 Kc1-d1 Ld8-a5 Kd1-e2 Te7-g7 Ke2-f1 Tg7-f7 Kf1-g1
---------------------------------------------------------------------------
 13/23	00:00,298	 2.613k	8.769k	-3,94	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 g5-g4 Df3-e3 Sf6-e8 De3-h6+ Dd7-h7 Kb1-c2 Ld8-g5 Dh6xh7+ Kh8xh7 Tg1xg4 Se8-f6
 13/22	00:00,298	 2.613k	8.769k	-3,77	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Dg2-f3 Ld8-e7 Tg1-f1 g5-g4 Df3-e3 Le7-f8 Tf1-f2 Sf6-e8 Th1-f1 Dd7-d8 Tf1-g1 Se8-f6
 13/27	00:00,298	 2.613k	8.769k	-3,05	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Tg7-e7 Kb1-c1 Kg8-f8 Kc1-d2 Ld8-b6 Kd2-e2 Lb6-d8 Ke2-f1 Ld8-a5 Kf1-g1 Te7-g7
---------------------------------------------------------------------------
 14/26	00:00,424	 4.208k	9.924k	-3,99	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 g5-g4 Df3-e3 Sf6-h7 De3-h6 Ld8-g5 Dh6-e6 Dd7xe6 d5xe6 Lg5-f4 e6-e7 Sh7-f6
 14/24	00:00,424	 4.208k	9.924k	-3,86	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Dg2-f3 Ld8-e7 Sf5xe7 Dd7xe7 Tg1-f1 Sf6-e8 Df3-f5+ Kh7-h6 Th1-g1 Tg8-g7 Df5-f8 De7xf8 Tf1xf8 Tg7-e7 Tf8-g8 Kh6-h7
 14/26	00:00,424	 4.208k	9.924k	-3,14	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Tg7-e7 Kb1-c1 Kg8-f8 Kc1-d2 Ld8-b6 Kd2-e3 Te7-g7 Ke3-e2 Tg7-g8 Ke2-f1 Lb6-a5 Te1xe5
---------------------------------------------------------------------------
 15/32	00:00,604	 6.514k	10.785k	-4,08	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Ld8-e7 Tg1-g2 Kh8-h7 Th1-f1 Sf6-e8 Tf1-g1 Tg8-f8 h5-h6 Le7-d8 Tg1-h1 Tf8-g8
 15/33	00:00,604	 6.514k	10.785k	-4,05	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Tg1-f1 Sf6-e8 Th1-g1 Tg8-f8 h5-h6 Tf8-g8 Tg1-h1 g5-g4 Sf5-g7 Se8-f6 Th1-g1 Kh7-h8 Tf1-f5 Ld8-e7
 15/26	00:00,604	 6.514k	10.785k	-3,45	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Tg7-e7 Kb1-c2 Kg8-f8 Kc2-d1 Te7-g7 Kd1-e2 Kf8-g8 Ke2-f1 Kg8-f8 Th1-h3 Tg7-e7 Th3-g3 Te7-d7 Kf1-g1 Ld8-a5
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 16/26	00:00,835	 9.285k	11.120k	-4,19	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Kh8-h7 Tg1-f1 Ld8-e7 Th1-g1 Le7-f8 Tf1-f2 Lf8-e7 Sf5xe7 Dd7xe7 De2-f3 Sf6-e8 Df3-f5+ Kh7-h6 Kb1-c2 Tg8-g7 Df5-f8 De7xf8 Tf2xf8
 16/22	00:00,835	 9.285k	11.120k	-4,14	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Kh8-h7 Tg1-f1 Ld8-e7 Sf5xe7 Dd7xe7 De2-f2 Sf6-e8 Df2-f5+ Kh7-h6 Th1-g1 Tg8-g7 Df5-f8 De7xf8 Tf1xf8 Tg7-e7 Tf8-g8
 16/29	00:00,835	 9.285k	11.120k	-3,58	Dd7xf5 e4xf5 Sh7-f6 Kb1-c1 Tg7-e7 Kc1-d1 Kg8-f7 Kd1-e2 Kf7-e8 Tg1-e1 Ke8-d7 Ke2-f1 Te7-e8 Th1-h3 Ld8-a5 Kf1-g1 Te8-f8
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 17/27	00:01,102	 12.312k	11.173k	-4,13	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Sf5-h6 Tg8-f8 Tg1-f1 Kh8-h7 Sh6-f5 Kh7-h8 Kb1-c2 Tf8-g8 Th1-g1 Le7-f8 De2-g2 g5-g4
 17/27	00:01,102	 12.312k	11.173k	-4,14	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Sf5-h6 Tg8-g7 Tg1-g2 Sf6-g8 Sh6-f5 Tg7-f7 Th1-f1 Tf7xf5 Tf1xf5 Sg8-h6 Tf5-f1 Dd7-h3 De2-f3 Dh3xf3 Tf1xf3 g5-g4 Tf3-f1 Le7-h4 Kb1-c2 Lh4-g5
 17/30	00:01,102	 12.312k	11.173k	-3,69	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Tg7-e7 Kb1-c1 Kg8-f8 Th1-h3 Te7-e8 Kc1-d1 Kf8-g8 Th3-g3 Te8-e7 Kd1-e2 Kg8-f8 Ke2-f1 Te7-h7 Tg3-e3
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 18/28	00:01,264	 14.129k	11.178k	-4,03	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Tg1-g2 Sf6-h7 Th1-f1 Tg8-f8 Kb1-c2 Tf8-f6 De2-g4 Le7-f8 Tg2-f2 Dd7-f7 Kc2-d3 Df7-e8 Kd3-e2
 18/19	00:01,264	 14.129k	11.178k	-4,01	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Tg1-g2 Sf6-h7 Th1-f1 Tg8-f8 Kb1-c2 Tf8-f6 De2-g4 Le7-f8 Tg2-f2 Dd7-f7 Kc2-d3 Df7-e8
 18/30	00:01,264	 14.129k	11.178k	-3,84	Dd7xf5 e4xf5 Sh7-f6 Tg1-e1 Tg7-e7 Th1-h3 Ld8-c7 Kb1-c2 Lc7-a5 Kc2-d1 Kg8-f8 Th3-e3 Te7-e8 Te3-g3 Kf8-f7 Dg2-g1 Sf6xh5
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 19/31	00:07,767	 88.054k	11.337k	-4,11	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Tg8-f8 Tg1-f1 Ld8-e7 Kb1-c2 Sf6-h7 Df3-g4 Tf8-f7 Kc2-d3 Tf7-f6 h5-h6 Le7-f8 Kd3-e2 Dd7-f7 Sf5-e3 Tf6-f4 Dg4-e6 Df7-f6 Th1-g1 Df6xh6 Tg1-h1 Dh6xe6 d5xe6 Kh8-g8 Ke2-d3
 19/42	00:07,767	 88.054k	11.337k	-4,05	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Tg1-f1 Kh7-h8 Sf5-h6 Tg8-g7 Tf1-f2 Kh8-h7 Sh6-f5 Tg7-g8 Dg2-f3 Tg8-f8 Th1-f1 Kh7-h8 Df3-g2 g5-g4 Sf5-e3 Dd7-g7 Dg2xg4 Sf6xg4 Tf2xf8+ Kh8-h7 Tf1-f7
 19/93	00:07,767	 88.054k	11.337k	-1,79	Dd7xf5 e4xf5 Ld8-f6 Kb1-c2 Tg7-e7 Kc2-d1 Te7-g7 Tg1-e1 Tg7-e7 Kd1-e2 Kg8-f7 Th1-h3 Kf7-g8 Ke2-f1 Kg8-f8 Th3-e3 Kf8-f7 Dg2-h3 Kf7-g7 Te3-e4 Te7-e8 Dh3-d3 Kg7-g8 Te4xe5 Te8xe5
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 20/35	00:08,278	 93.771k	11.328k	-4,32	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Tg1-g2 Tg8-f8 Th1-f1 Tf8-f6 Kb1-c2 Dd7-e8 Kc2-d3 Ld8-e7 Tg2-f2 Le7-f8 Df3-g4 De8-c8 h5-h6 Dc8-d7 Dg4-h5 Dd7-f7 Dh5-h3 Df7-g6 Dh3-g4
 20/36	00:08,278	 93.771k	11.328k	-4,16	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Tg1-f1 Kh7-h8 Sf5-h6 Tg8-g7 Tf1-f2 Kh8-h7 Sh6-f5 Tg7-g8 Dg2-f3 Tg8-f8 Th1-g1 Tf8-g8 Tf2-g2 Sf6-e8 Sf5-e3 Tg8-g7 Tg1-f1 Se8-f6 Kb1-c2 Tg7-g8 Tf1-g1 Sf6-e8 Kc2-d3 Tg8-g7 Df3-f5+ Dd7xf5 Se3xf5
 20/32	00:08,278	 93.771k	11.328k	-1,76	Dd7xf5 e4xf5 Ld8-f6 Kb1-c2 Tg7-e7 Kc2-d1 Te7-g7 Tg1-e1 Tg7-e7 Kd1-e2 Kg8-f8 Th1-h3 Kf8-g8 Ke2-f1 Kg8-f8 Th3-e3 Kf8-f7 Dg2-g4 Kf7-g8 Te3-e2 Te7-e8 Te2xe5 Te8xe5 Te1xe5 Lf6xe5 f5-f6 Sh7xf6 Dg4-f5 Kg8-h8 Df5-g6
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 21/33	00:08,773	 99.299k	11.319k	-4,25	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Tg1-g2 Tg8-f8 Th1-f1 Ld8-e7 Kb1-c2 Dd7-e8 Kc2-d3 Tf8-f6 Tg2-f2 Le7-f8 Df3-g4 Kh8-g8 Sf5-e3 Tf6-f4 Dg4-e6+ De8xe6 d5xe6 Sh7-f6 Se3-d5
 21/28	00:08,773	 99.299k	11.319k	-4,33	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Tg1-g2 Tg8-f8 Th1-f1 Ld8-e7 Kb1-c2 Dd7-e8 Kc2-d3 Tf8-f6 Tg2-f2 Le7-f8 Df3-g4 Kh8-g8 Sf5-g3 Tf6-f4 Dg4-e6+ De8xe6 d5xe6 Kg8-g7
 21/47	00:08,773	 99.299k	11.319k	-1,77	Dd7xf5 e4xf5 Ld8-f6 Kb1-c2 Tg7-e7 Kc2-d1 Te7-e8 Kd1-e2 Te8-e7 Tg1-e1 Te7-e8 Ke2-f1 Kg8-g7 Th1-h3 Kg7-f7 Th3-e3 Kf7-g7 Dg2-c2 Kg7-h8 Te3-e2 Te8-e7 Te2-e4 Te7-e8 Kf1-g2 Te8-e7 Te4xe5 Te7xe5 Te1xe5 Lf6xe5 f5-f6
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 22/41	00:09,852	 112.275k	11.396k	-4,29	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Tg1-f1 Kh7-h8 Sf5-h6 Tg8-g7 Tf1-f2 Kh8-h7 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-e8 Th1-g1 Se8-f6 Tf2-g2 Sf6-e8 Sf5-e3 Tg8-g7 Tg1-f1 Se8-f6 Kb1-c2 g5-g4
 22/31	00:09,852	 112.275k	11.396k	-4,25	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Ld8-e7 Tg1-g2 Tg8-f8 Th1-f1 Dd7-e8 Kc2-d3 Tf8-f6 Df3-g4 Le7-f8 Tg2-f2 De8-d8 h5-h6 Dd8-d7 Kd3-c2
 22/47	00:09,852	 112.275k	11.396k	-2,09	Dd7xf5 e4xf5 Ld8-f6 Tg1-e1 Tg7-e7 Th1-h3 Te7-e8 Th3-e3 Te8-e7 Dg2-h3 Kg8-g7 Kb1-c2 Sh7-f8 Kc2-d1 Te7-e8 Kd1-e2 Kg7-f7 Ke2-f1 Kf7-g7 Te3xe5 Te8xe5 Te1xe5 Lf6xe5 f5-f6+ Kg7xf6 Dh3-c8 Kf6-e7 Kf1-e2
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 23/35	00:10,601	 120.537k	11.370k	-4,32	Sh7-f6 Sf5xh6+ Kg8-h7 Sh6-f5 Tg7-g8 Tg1-f1 Ld8-e7 Sf5xe7 Dd7xe7 Dg2-f3 Sf6-e8 Df3-f5+ Kh7-h6 Th1-g1 Se8-c7 Tf1-f2 Sc7-e8 Kb1-c2 Tg8-g7 Df5-f8 De7xf8 Tf2xf8 Tg7-e7 Tf8-g8 Te7-f7 Tg8-h8+ Kh6-g7 Th8xe8 Tf7-f2+ Kc2-d3 Tf2xa2 Tg1xg5+ Kg7-f7 Te8-a8 Ta2-h2
 23/35	00:10,601	 120.537k	11.370k	-4,28	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Ld8-e7 Kc2-d3 Tg8-f8 Tg1-f1 Tf8-f6 Df3-g4 Le7-f8 h5-h6 Dd7-f7 Th1-g1 Df7-e8 Sf5-g3 Tf6-g6 Tg1-h1 Kh8-g8 Sg3-h5 Tg6xh6
 23/38	00:10,601	 120.537k	11.370k	-2,35	Dd7xf5 e4xf5 Ld8-f6 Tg1-e1 Tg7-e7 Kb1-c2 Kg8-g7 Th1-h3 Kg7-f7 Th3-e3 Te7-e8 Kc2-d1 Te8-e7 Kd1-e2 Kf7-f8 Ke2-f1 Kf8-f7 Dg2-h3 Kf7-g7 Dh3-g4 Kg7-g8 Kf1-g2 Te7-e8 Dg4-h3 Kg8-g7 Te3-e4 Te8-e7 Dh3-d3 Sh7-f8
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 24/49	00:12,533	 141.187k	11.265k	-4,41	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Ld8-e7 Kc2-d3 Tg8-f8 Tg1-f1 Tf8-f6 Df3-g4 Le7-f8 h5-h6 Dd7-f7 Th1-g1 Df7-d7 Dg4-h5 Dd7-f7 Dh5xf7 Tf6xf7 Sf5-e3 Kh8-g8 Se3-g4 Lf8-e7 Tf1-f5 Tf7xf5 e4xf5 Sh7-f6 Sg4-f2 Kg8-h8 Sf2-e4 Sf6xe4 Kd3xe4 Kh8-h7 Tg1-h1
 24/40	00:12,533	 141.187k	11.265k	-4,22	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Ld8-e7 Kc2-d3 Tg8-f8 h5-h6 Tf8-f6 Df3-h5 Tf6xf5 Dh5-g4 Le7-d8 e4xf5 Ld8-f6 Kd3-e2 Dd7-e8 Tg1-e1 De8-f7 Ke2-f1 Kh8-g8 Kf1-g2 Kg8-f8
 24/41	00:12,533	 141.187k	11.265k	-2,35	Dd7xf5 e4xf5 Ld8-f6 Tg1-e1 Tg7-e7 Kb1-c2 Kg8-f8 Th1-f1 Kf8-g8 Tf1-g1 Kg8-f8 Te1-e3 Kf8-g7 Kc2-d1 Kg7-g8 Tg1-e1 Kg8-g7 Kd1-e2 Te7-e8 Dg2-h3 Kg7-f7 Ke2-f2 Kf7-g7 Kf2-f1 Kg7-g8 Te3-e4 Kg8-g7 Te1-e2 Te8-e7
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 25/44	00:15,495	 176.434k	11.387k	-4,29	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Dd7-f7 Tg1-g2 Tg8-f8 Tg2-f2 Df7-e8 Th1-f1 De8-d7 Df3-g4 Tf8-f6 h5-h6 Ld8-e7 Dg4-h5 Le7-f8 Sf5-g7 Tf6xf2+ Tf1xf2 Lf8xg7 Tf2-f7 Dd7xf7
 25/42	00:15,495	 176.434k	11.387k	-4,42	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Ld8-e7 Kc2-d3 Tg8-f8 Tg1-f1 Tf8-f6 Df3-g4 Le7-f8 h5-h6 Dd7-f7 Th1-g1 Df7-d7 Dg4-h5 Dd7-f7 Dh5xf7 Tf6xf7 Sf5-e3 Kh8-g8 Se3-g4 Lf8-e7 Kd3-e2 Sh7-f8 Tf1-f5 Tf7xf5 e4xf5 Sf8-d7 Ke2-f3 Kg8-h8 Sg4-f2 Kh8-h7 Sf2-e4 Kh7xh6
 25/42	00:15,495	 176.434k	11.387k	-2,29	Dd7xf5 e4xf5 Ld8-f6 Tg1-e1 Tg7-e7 Kb1-c2 Te7-e8 Te1-e4 Kg8-f7 Dg2-f3 Kf7-g8 Th1-e1 Kg8-f7 Kc2-d1 Kf7-g7 Te4-e2 Te8-e7 Df3-h3 Sh7-f8 Te2-e4 Te7-e8 Te4xe5 Te8xe5 Te1xe5 Lf6xe5 f5-f6+ Kg7xf6 Kd1-e2 Kf6-e7 Ke2-f3
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 26/40	00:22,272	 251.059k	11.272k	-4,49	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 Dg2-e2 Tg8-g5 De2-e3 Sf6-e8 Sf5-g3 Dd7-g7 h5-h6 Dg7-e7 h6-h7 Tg5-g6 Th1-h6 De7-g7 Sg3-f5 Tg6-f6 Th6xf6 Dg7xf6 De3-h6 Df6xh6 Sf5xh6 Kh8xh7 Sh6xg4 Ld8-g5 Tf1-f8 Se8-g7 Kb1-c2 Sg7-h5 Tf8-f7+ Kh7-g6 Tf7-d7
 26/39	00:22,272	 251.059k	11.272k	-4,46	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Dd7-f7 Tg1-g2 Tg8-f8 Tg2-f2 Df7-e8 Th1-f1 De8-d7 Tf2-g2 Ld8-e7 Df3-g4 Tf8-f6 Tg2-g1 Dd7-e8 Kc2-d3 Le7-f8 h5-h6 Tf6-g6 Sf5-e3 Lf8-e7 Dg4-h5
 26/89	00:22,272	 251.059k	11.272k	-1,84	Dd7xf5 e4xf5 Ld8-f6 Th1-h2 Tg7-e7 Dg2-h3 Kg8-g7 Kb1-c2 Te7-e8 Th2-e2 Kg7-f7 Te2-g2 Te8-e7 Kc2-d1 Kf7-g7 Tg1-e1 Te7-e8 Tg2-e2 Sh7-f8 Te2xe5 Te8xe5 Te1xe5 Lf6xe5 f5-f6+ Kg7xf6 Kd1-e2 Kf6-e7 Ke2-f3 Le5-c3 Dh3-f5 Lc3-e5 Df5-c8 Le5-f6 Kf3-g4 Lf6-e5 Dc8-b7+ Sf8-d7 Kg4-f5
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 27/45	00:30,369	 336.729k	11.088k	-4,55	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-f3 Sf6-h7 Kb1-c2 Ld8-e7 Kc2-d3 Tg8-f8 Tg1-f1 Tf8-f6 h5-h6 Le7-f8 Df3-g4 Kh8-g8 Th1-g1 Kg8-h8 Dg4-h5 Dd7-f7 Dh5xf7 Tf6xf7 Sf5-e3 Kh8-g8 Se3-g4 Tf7xf1 Tg1xf1 Lf8-e7 Tf1-f2 Le7-d8 Kd3-e2 Ld8-e7 Ke2-f1 Le7-f8 Kf1-g2 Lf8-e7
 27/42	00:30,369	 336.729k	11.088k	-4,54	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Sf5-h6 Tg8-g7 De2-e3 Sf6-h7 De3-f3 Sh7-f6 Tg1xg5 Sf6xe4 Tg5-g2 Se4-g5 Df3-g4 Dd7xg4 Tg2xg4 Tg7-h7 Sh6-f5 Sg5-f3 Tg4-g6 e5-e4 h5-h6 Sf3-d4 Sf5xd4 c5xd4 Tg6-e6
 27/51	00:30,369	 336.729k	11.088k	-1,76	Dd7xf5 e4xf5 Ld8-f6 Dg2-h3 Tg7-e7 Tg1-e1 Kg8-g7 Kb1-c2 Kg7-f7 Te1-e4 Sh7-f8 Th1-g1 Sf8-h7 Kc2-d3 Kf7-f8 Tg1-e1 Kf8-g7 Kd3-e3 Kg7-f7 Ke3-f3 Sh7-f8 Te4xe5 Te7xe5 Te1xe5 Lf6xe5 f5-f6 Kf7xf6 Dh3-c8 Kf6-e7 Kf3-e4 Sf8-d7 Ke4-f5 Sd7-f8 Dc8-c7+ Sf8-d7 Kf5-g6 g5-g4 Dc7-c8
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 28/50	00:47,581	 522.831k	10.988k	-4,75	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Sf6-h7 Tg1-f1 Tg8-f8 Kb1-c2 Tf8-f6 De2-g2 Tf6-f7 Th1-g1 Tf7-f8 Dg2-g4 Tf8-f6 h5-h6 Tf6-f8 Dg4-f3 Dd7-f7 Kc2-d3 Df7-e8 Df3-e2 De8-g6 De2-g4 Tf8-g8 Sf5-g7 Sh7-f6 Dg4-f5 Dg6xf5 Sg7xf5 Sf6-h5 Sf5xd6 Sh5-f4+ Kd3-e3
 28/44	00:47,581	 522.831k	10.988k	-4,67	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Sf6-h7 Tg1-f1 Tg8-f8 Th1-g1 Tf8-f6 Kb1-c2 Ld8-e7 De2-e3 Tf6-f7 h5-h6 Tf7-f8 Kc2-d3 Tf8-g8 De3-f3 Dd7-e8 Sf5-g7 De8-c8 Df3-h5 Sh7-f6 Dh5xg5 Sf6xd5 Dg5-g2 Sd5-f4+ Tf1xf4 e5xf4 h6-h7 Tg8-f8
 28/49	00:47,581	 522.831k	10.988k	-1,87	Dd7xf5 e4xf5 Ld8-f6 Dg2-h3 Tg7-e7 Kb1-c2 Kg8-f7 Kc2-d3 Kf7-g8 Tg1-g2 Kg8-f8 Th1-g1 Te7-f7 Tg2-g3 Kf8-g7 Tg3-e3 Tf7-e7 Kd3-e2 Te7-e8 Tg1-e1 Sh7-f8 Ke2-d3 Te8-e7 Te3xe5 Te7xe5 Te1xe5 Lf6xe5 f5-f6+ Kg7xf6 Dh3-c8 Kf6-e7 Kd3-e4 Le5-d4 Ke4-f5 Ld4-e3 Dc8-b7+ Sf8-d7
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 29/49	01:13,842	 800.006k	10.834k	-5,04	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Sf5-h6 Tg8-g7 De2-e3 Sf6-h7 De3-f3 Le7-d8 Tg1-f1 Sh7-f6 Th1-g1 Kh8-h7 Sh6-f5 Tg7-g8 Tg1-g2 Dd7-c7 Kb1-c2 Dc7-d7 Tf1-g1 Sf6-e8 Sf5-e3 Kh7-h8 Se3-g4 Ld8-e7 Tg1-f1 Kh8-h7 Df3-f7+ Tg8-g7 Df7-f5+ Dd7xf5
 29/47	01:13,842	 800.006k	10.834k	-4,92	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Tg8-e8 Tg1-f1 Te8-f8 Th1-g1 Sf6-h7 De2-g4 Tf8-f6 Dg4-g2 Tf6-f7 Kb1-c2 Tf7-f8 Dg2-f3 Tf8-f6 h5-h6 Dd7-e8 Kc2-d3 Ld8-e7 Df3-g4 Le7-f8 Sf5-e3 Tf6xf1 Tg1xf1 De8-g6 Dg4-f3 Kh8-g8 Se3-g4 Lf8-e7 Df3-h3
 29/97	01:13,842	 800.006k	10.834k	-1,25	Dd7xf5 e4xf5 Ld8-f6 Dg2-h3 Tg7-e7 Tg1-e1 Kg8-f7 Te1-e2 Sh7-f8 Th1-g1 Sf8-h7 Tg1-g3 Kf7-g7 Tg3-e3 Sh7-f8 Kb1-c2 Kg7-f7 Te3xe5 Te7xe5 Te2xe5 Lf6xe5 f5-f6 Kf7xf6 Dh3-c8 Kf6-e7 Dc8-c7+ Sf8-d7 Kc2-d3 Le5-d4 Kd3-e4 Ld4-c3 Dc7-c8 Sd7-f8 Ke4-f5 Lc3-d4 Dc8-c7+ Sf8-d7 Dc7-b7 Ld4-e3 Kf5-g6
---------------------------------------------------------------------------
 30/54	01:41,882	 1.092.175k	10.720k	-5,11	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Sf6-h7 Tg1-f1 Tg8-f8 Kb1-c2 Tf8-f7 h5-h6 Tf7-f8 De2-h5 Ld8-f6 Th1-g1 Tf8-g8 Kc2-d3 Tg8-f8 Sf5-e3 Dd7-e8 Dh5xe8 Tf8xe8 Se3-g4 Lf6-d8 Tf1-f5 Te8-e7 Tg1-f1 Kh8-g8 Sg4-f6+ Sh7xf6 Tf5xf6 Te7-d7 Tf6-f8+ Kg8-h7 Tf8-f7+ Td7xf7 Tf1xf7+ Kh7xh6
 30/46	01:41,882	 1.092.175k	10.720k	-5,14	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Ld8-e7 Sf5-h6 Tg8-f8 Tg1-f1 Kh8-h7 Sh6-f5 Le7-d8 Th1-g1 Tf8-g8 De2-f3 Sf6-e8 Tg1-g2 Tg8-f8 h5-h6 Dd7-f7 Df3-g4 Df7-g8 Kb1-c2 Tf8-f7 Kc2-d3 Dg8-f8 Dg4-h3 Ld8-e7 Tg2-g1 Kh7-h8 Dh3-h5 Kh8-h7 Kd3-e2 Le7-d8
 30/116	01:41,882	 1.092.175k	10.720k	-0,82	Dd7xf5 e4xf5 Ld8-f6 Kb1-c1 Tg7-e7 Tg1-e1 Kg8-f7 Dg2-h3 Sh7-f8 Kc1-d1 Sf8-h7 Te1-e4 Te7-e8 Th1-e1 Sh7-f8 Te4-g4 Sf8-h7 Te1-e2 Te8-e7 Te2-e3 Kf7-g7 Kd1-c2 Te7-e8 Tg4-e4 Sh7-f8 Te4xe5 Te8xe5 Te3xe5 Lf6xe5 f5-f6+ Kg7xf6 Kc2-d1 Kf6-f7 Dh3-c8
---------------------------------------------------------------------------
 31/48	02:24,105	 1.506.779k	10.456k	-5,20	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Dg2-e2 Sf6-e8 Tg1-f1 Se8-f6 Th1-g1 Kh8-h7 De2-f3 Sf6-e8 Kb1-c2 Tg8-f8 h5-h6 Se8-c7 Kc2-b1 Sc7-e8 Df3-h5 Dd7-f7 Dh5-g4 Df7-d7 Tg1-h1 Se8-c7 Dg4-g2 Sc7-e8 Sf5-g7 Tf8-f4 Sg7-e6 Dd7-e7 Tf1xf4 e5xf4 e4-e5 Kh7-h8 Dg2-e4 Se8-c7 Se6xd8 De7xd8 De4-g6
 31/47	02:24,105	 1.506.779k	10.456k	-5,24	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Dg2-e2 Tg8-e8 Tg1-f1 Te8-f8 Th1-g1 Sf6-h7 Kb1-c2 Tf8-f6 Kc2-d3 Ld8-e7 De2-e3 Tf6-f8 Sf5-h6 Tf8-f4 Tf1xf4 e5xf4 De3xf4 Dd7-h3+ Df4-g3 Dh3xh5 Sh6-f5 Dh5-g6 Sf5xe7 Dg6-f6 Se7-f5 Df6-c3+ Kd3-e2 Dc3-c2+ Ke2-f3 Dc2xa2 Tg1-h1 Da2-d2 Sf5xd6
 31/109	02:24,105	 1.506.779k	10.456k	-0,91	Dd7xf5 e4xf5 Ld8-f6 Kb1-c1 Tg7-e7 Tg1-e1 Te7-e8 Dg2-h3 Kg8-f7 Te1-e2 Te8-e7 Te2-e4 Kf7-g7 Kc1-d1 Sh7-f8 Th1-e1 Te7-e8 Te1-g1 Sf8-h7 Dh3-g4 Kg7-f7 Tg1-e1 Sh7-f8 Te1-e3 Sf8-d7 Dg4-h3 Sd7-f8 Kd1-e2 Sf8-d7 Te4-g4 Sd7-f8 Te3-g3 Sf8-h7 Tg4xg5 h6xg5 h5-h6 Kf7-f8 Tg3-g2 Te8-e7 Dh3-h5 Te7-d7
---------------------------------------------------------------------------
 32/56	04:29,248	 2.657.731k	9.871k	-5,96	g5-g4 Sf5xh6+ Kg8-h8 Sh6xg4 Tg7-g8 Th1-h3 Dd7-g7 Sg4-e3 Dg7xg2 Tg1xg2 Tg8xg2 Se3xg2 Sh7-f6 Th3-e3 Kh8-h7 Sg2-h4 Sf6xh5 Sh4-f5 Ld8-c7 Te3-e1 Kh7-g8 Te1-g1+ Kg8-f8 Tg1-h1 Sh5-f6 Th1-h8+ Kf8-f7 Th8-c8 Sf6xe4 Tc8xc7+ Kf7-f6 Sf5xd6 Se4xd6 Tc7xc5 Sd6-e4 Tc5-c6+ Kf6-f5 Kb1-c2 Se4-c3 d5-d6
 32/50	04:29,248	 2.657.731k	9.871k	-5,36	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 Dg2-e2 Ld8-e7 Sf5-h6 Tg8-g7 Th1-g1 Le7-d8 De2-d2 Dd7-e8 Dd2-e3 Sf6xh5 Tg1xg4 Tg7xg4 Sh6xg4 Sh5-f4 Tf1-h1+ Kh8-g7 Sg4-h6 De8-g6 Sh6-f5+ Kg7-f8 Th1-h8+ Kf8-f7 De3-g3 Dg6xg3 Sf5xg3 Ld8-e7 Kb1-c2 Kf7-f6 Th8-b8 Sf4-g2 Sg3-f5 Sg2-e1+ Kc2-d2
 32/105	04:29,248	 2.657.731k	9.871k	-0,91	Dd7xf5 e4xf5 Ld8-f6 Th1-h3 Tg7-f7 Kb1-c2 Tf7-e7 Tg1-e1 Sh7-f8 Kc2-d1 Kg8-f7 Te1-g1 Sf8-h7 Th3-e3 Te7-e8 Tg1-e1 Kf7-g7 Te1-f1 Kg7-g8 Te3-e4 Kg8-f7 Tf1-e1 Sh7-f8 Te4xe5 Te8xe5 Te1xe5 Lf6xe5 f5-f6 Le5xf6 Dg2-g4 Lf6-c3 Kd1-c2 Kf7-e7 Kc2-d3 Lc3-e5
---------------------------------------------------------------------------
 33/59	09:14,863	 5.416.325k	9.762k	-6,28	Sh7-f6 Sf5xh6+ Kg8-h8 Sh6-f5 Tg7-g8 Tg1-f1 Kh8-h7 Th1-g1 Dd7-c7 Dg2-e2 Dc7-d7 De2-f3 Sf6-e8 Kb1-c2 Tg8-f8 h5-h6 Dd7-f7 Df3-g4 Df7-d7 Dg4-g2 Ld8-f6 Sf5-e3 Dd7-f7 Dg2-g4 Df7-g6 Kc2-d3 Tf8-f7 Tg1-h1 Tf7-c7 Dg4-f3 Tc7-f7 Se3-g4 Tf7-f8 Df3-f5 Dg6xf5 Tf1xf5 Kh7-g6 Th1-g1 Tf8-h8 Tg1-f1 Lf6-e7 Tf5-f7 Th8xh6
 33/54	09:14,863	 5.416.325k	9.762k	-5,79	Kg8-h8 Sf5xh6 Sh7-f6 Sh6-f5 Tg7-g8 Tg1-f1 g5-g4 Dg2-e2 Tg8-g5 De2-e3 Sf6-e8 Sf5-g3 Dd7-e7 Tf1-f5 De7-g7 Th1-f1 Tg5xf5 Sg3xf5 Dg7-g5 De3xg5 Ld8xg5 Tf1-g1 Se8-f6 Sf5xd6 Kh8-g7 Sd6-f5+ Kg7-f7 Kb1-c2 Lg5-f4 d5-d6 Kf7-e6 h5-h6 Lf4-g5 h6-h7 Sf6xh7 Tg1xg4 Ke6-d7 Tg4-g1 Kd7-e6 d6-d7 Ke6xd7 Tg1-d1+ Kd7-c6
 33/103	09:14,863	 5.416.325k	9.762k	-0,88	Dd7xf5 e4xf5 Ld8-f6 Th1-h2 Tg7-e7 Dg2-h3 Kg8-g7 Tg1-c1 Sh7-f8 Kb1-c2 Te7-e8 Tc1-e1 Kg7-f7 Th2-e2 Te8-e7 Te2-e4 Sf8-d7 Te4-e3 Sd7-f8 Dh3-g2 Kf7-g8 Te3-e4 Kg8-f7 Te4xe5 Te7xe5 Te1xe5 Lf6xe5 f5-f6 Le5xf6 Dg2-f3 Kf7-g7 Df3-f2 Kg7-f7 Df2-f5 Kf7-e7 Kc2-d3 Lf6-c3 Kd3-e4 Lc3-e5
Top
Dann Corbit
Posts: 12751
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Nice queen sacrifice from Lc0

Post by Dann Corbit »

LC0 is absurdly fast on this one, but never comes off of down one pawn on the score, at least in ten minutes.

Code: Select all

Analysis of G:\qsac.epd   
4/10/2025 7:58:43 PM Level: 600 Seconds
Analyzing engine: Lc0-v0.31.2

 1                      
    Avoid move: 
    Best move (Lc0-v0.31.2): Qd7xf5
    Not found in: 10:00
     2/3	00:00	           4	97	-34.04	Nf6  Nxh6+  Kh7
     2/3	00:00	           5	87	-1.18	Qxf5  exf5  Bf6
     2/4	00:00	           7	111	-1.21	Qxf5  exf5  Bf6  Re1
     3/5	00:00	          10	120	-1.40	Qxf5  exf5  Bf6  Re1  Re7
     3/6	00:00	          13	136	-1.22	Qxf5  exf5  Bf6  Re1  Re7  Re4
     3/7	00:00	          20	178	-1.31	Qxf5  exf5  Bf6  Re1  Re7  Re4  Nf8
     4/7	00:00	          27	214	-1.29	Qxf5  exf5  Bf6  Re1  Re7  Re4  Nf8
     4/8	00:00	          32	228	-1.32	Qxf5  exf5  Bf6  Re1  Re7  Re4  Kf8  Rhe1
     5/8	00:00	          52	268	-1.10	Qxf5  exf5  Bf6  Re1  Re7  Re4  Nf8  Rg4
     5/9	00:00	          97	402	-1.10	Qxf5  exf5  Bf6  Re1  Re7  Re4  Nf8  Rg4
     5/10	00:00	         126	451	-1.07	Qxf5  exf5  Bf6  Re1  Re7  Re4  Nf8  Rg4
     6/10	00:00	         228	545	-1.00	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Nf8  Rg3  Nh7  Rge3
     6/11	00:00	         240	556	-0.99	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Nf8  Rg3  Nh7  Rge3
     6/12	00:00	         418	781	-0.91	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Nf8  Rg3  Nh7  Rge3  Nf8
     6/13	00:00	         555	905	-0.96	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4
     6/14	00:00	         818	1k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8
     7/14	00:00	          1k	1k	-0.95	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8
     7/15	00:01	          2k	1k	-0.90	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8
     7/16	00:01	          3k	2k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nd7  Rxg5+  Bxg5  f6
     8/16	00:01	          3k	2k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8  Rxe5  Rxe5
     8/17	00:01	          3k	2k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8  Rxe5  Rxe5  Rxe5
     8/19	00:02	          7k	2k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Nf8  Rg3  Nh7  Rge3  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6
     8/20	00:02	          7k	2k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Nf8  Rg3  Nh7  Rge3  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6
     9/20	00:03	          8k	2k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qg4  Kf7  Qc8
     9/21	00:03	         10k	3k	-0.89	Qxf5  exf5  Bf6  Re1  Re7  Rh4  Nf8  Rg4  Nh7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qh3  Kf7  Qc8
     9/22	00:06	         19k	3k	-0.88	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Nf8  Rg3  Nh7  Rge3  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qh3  Kf7  Qc8  Ke7
    10/22	00:09	         35k	4k	-0.91	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qg4  Be5  Qc8  Ke7  Kc2
    10/23	00:11	         42k	4k	-0.91	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Kf7  Qc8  Ke7  Kc2
    10/24	00:11	         44k	4k	-0.91	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qg4  Be5  Qc8  Ke7  Kc2
    10/25	00:11	         45k	4k	-0.91	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qg4  Be5  Qc8  Ke7  Kc2  Kf7
    10/26	00:12	         49k	4k	-0.92	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Bxf6  Qg4  Be5  Qc8  Ke7  Kc2  Kf7  Kd3
    10/27	00:15	         63k	4k	-0.94	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Kf7  Kc2  Ke7  Kd3
    11/27	00:16	         67k	4k	-0.95	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Nd7  Qg8  Nf8  Kc2
    11/27	00:21	        100k	5k	-0.96	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Nd7  Qg8  Nf8  Kc2
    11/28	00:22	        108k	5k	-0.96	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Nd7  Qg8  Nf8  Kc2
    12/28	00:25	        134k	5k	-0.98	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Nd7  Qg8  Nf8  Kc2
    12/29	00:27	        146k	5k	-0.98	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Nd7  Qg8  Nf8  Kc2
    12/31	00:30	        158k	5k	-0.97	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kg7  Rge1  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qg4  Ke7  Qc8  Nd7  Qg8  Nf8  Kc2
    12/32	00:35	        188k	5k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Qc7+  Nd7  Ke4  g4  Qc8
    13/32	00:37	        200k	5k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Qc7+  Nd7  Ke4  g4  Qc8
    13/33	00:37	        204k	5k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    13/34	00:40	        219k	5k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    13/34	00:50	        292k	6k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    14/34	00:53	        313k	6k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    14/34	00:58	        350k	6k	-0.98	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    14/40	02:08	      1,198k	9k	-1.00	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    15/40	02:12	      1,269k	10k	-1.00	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    14/40	02:12	      1,269k	10k	-1.00	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    15/40	02:12	      1,270k	10k	-1.00	Qxf5  exf5  Bf6  Re1  Re7  Rh3  Kf7  Rhe3  Nf8  Qh3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    15/40	02:17	      1,346k	10k	-1.00	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	02:42	      1,728k	11k	-1.00	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    14/40	02:43	      1,743k	11k	-1.00	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	02:43	      1,745k	11k	-1.00	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    14/40	02:43	      1,745k	11k	-1.00	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	02:43	      1,747k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    14/40	02:43	      1,751k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    14/40	02:48	      1,832k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    14/40	02:53	      1,925k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	02:54	      1,934k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	02:59	      2,025k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	03:04	      2,116k	11k	-1.01	Qxf5  exf5  Bf6  Rh3  Re7  Re3  Kf7  Qh3  Re8  Rge1  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/40	03:09	      2,213k	12k	-1.01	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    15/40	03:24	      2,493k	12k	-1.01	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    15/40	03:29	      2,590k	12k	-1.01	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Qc7+  Nd7  Ke4  g4  Qc8
    15/40	03:39	      2,780k	13k	-1.01	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Qc7+  Nd7  Ke4  g4  Qc8
    15/40	03:44	      2,882k	13k	-1.01	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    15/40	04:14	      3,503k	14k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Bh2  Qc7+  Nd7  Kd3  Be5  Ke4  g4  Qc8  Nf6+
    15/40	04:19	      3,601k	14k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Nd7  Kf5  Nf8  Qb8  Nd7
    15/40	04:24	      3,723k	14k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rg3  Re8  Rge3  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    15/41	05:23	      4,986k	15k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rg3  Re8  Rge3  Nf8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Kf7  Kd3  Ke7  Ke4  Kf7
    16/41	05:25	      5,024k	15k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8
    16/42	05:27	      5,079k	15k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4
    16/42	05:42	      5,429k	16k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4
    16/42	05:47	      5,546k	16k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    16/42	08:22	      9,360k	19k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    16/42	08:27	      9,514k	19k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg3  Kg7  Re1  Kf7  Rge3  Nf8  Re4  Re8  R4e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4
    16/42	08:32	      9,648k	19k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg3  Kg7  Re1  Kf7  Rg4  Re8  Rge4  Nf8  R4e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4
    16/42	09:18	     11,001k	20k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg3  Kg7  Re1  Kf7  Rg4  Re8  Rge4  Nf8  R4e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4
    16/42	09:23	     11,155k	20k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    16/42	09:28	     11,308k	20k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  Rxe5  Rxe5  Rxe5  Bxe5  f6  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    16/42	09:33	     11,455k	20k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg4  Kf8  Re1  Kf7  Rge4  Nf8  R4e3  Re8  R3e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Nd7  Kf5  Nf8
    16/42	09:38	     11,604k	20k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg3  Kg7  Re1  Kf7  Rg4  Re8  Rge4  Nf8  R4e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
    16/42	09:53	     12,046k	20k	-1.02	Qxf5  exf5  Bf6  Qh3  Re7  Rg3  Kg7  Re1  Kf7  Rg4  Re8  Rge4  Nf8  R4e2  Kg7  Rxe5  Rxe5  Rxe5  Bxe5  f6+  Kxf6  Qc8  Ke7  Kc2  Nd7  Kd3  Nf8  Ke4  Kf7  Qd8  Bf4  Kf5
   4/10/2025 8:08:46 PM, Time for this analysis: 00:10:00, Rated time: 10:00

0 of 1 matching moves
4/10/2025 8:08:46 PM, Total time: 12:10:03 AM
Rated time: 10:00 = 600 Seconds
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MMarco
Posts: 212
Joined: Sun Apr 12, 2020 1:09 am
Full name: Marc-O Moisan-Plante

Re: Nice queen sacrifice from Lc0

Post by MMarco »

Stockfish 16.1 gets it on 12 cores after some time here, but the score is above +2, even several plies later:

Code: Select all

47...Rh8 48.Cxh6 Dc7 49.Dg4 Dd7 50.Df3 De7 51.Tf1 Df6 52.Cf5 Df8 53.Thg1 Tg8 54.Dh3 Cf6 55.De3 Cd7 56.Rc2 Rh7 57.Dh3 Cf6 58.Ce3 Dg7 59.De6 g4 60.Cf5 Dg5 61.Cxd6 g3 62.Tg2 Dg4 
  Les Blancs sont gagnants: +- (3.51)  Profondeur: 32/47   00:00:36  307mN, tb=7
47...g4 48.Cxh6+ Rh8 49.Cxg4 Tg8 50.De2 Tf8 51.h6 De8 52.Ce3 Fg5 53.Tf1 Tf4 54.Cf5 Fd8 55.Cxd6 Dg6 56.Cf5 Cg5 57.Thg1 Df7 58.Dg2 Df6 59.Ce3 Rh7 60.Rc2 Fe7 61.Rd3 Dg6 62.Cf5 Df6 63.Dd2 Ch3 64.Tg7+ Rh8 
  Les Blancs sont gagnants: +- (3.62)  Profondeur: 33/58   00:00:56  485mN, tb=20
47...Rh8 48.Cxh6 Cf6 49.Cf5 Tg8 50.De2 Rh7 51.Tf1 Rh8 52.Thg1 Tf8 53.Df3 Ce8 54.Dg4 Rh7 55.h6 Tg8 56.Ce3 Dxg4 57.Cxg4 Rg6 58.Tf5 Fe7 59.Tgf1 Rh5 60.h7 Th8 61.Tg1 Cg7 62.Tf7 Ff8 63.Rc2 Ce8 64.Td7 Fg7 
  Les Blancs sont gagnants: +- (3.91)  Profondeur: 34/62   00:02:08  1102mN, tb=123
47...Rf8 48.Cxh6 Re8 49.Cf5 Tg8 50.h6 Ff6 51.Dg4 Rd8 52.Tf1 Tf8 53.Ce3 Df7 54.Rc2 Dg8 55.Rd3 Te8 56.Cf5 Rc7 57.Dh5 Tf8 58.Cg7 Tf7 59.Dg6 Rb6 60.Thg1 Ra5 61.Re2 Df8 62.Tf5 
  Les Blancs sont gagnants: +- (3.99)  Profondeur: 35/60   00:03:07  1590mN, tb=281
47...Rf8 48.Cxh6 Re8 49.Cf5 Tg8 50.h6 Ff6 51.Dg4 Rd8 52.Tf1 Tf8 53.Ce3 Df7 54.Rc2 Dg8 55.Rd3 Te8 56.Cf5 Rc7 57.Dh5 Tf8 58.Cg7 Tf7 59.Dg6 Rb6 60.Th3 Ra5 61.Thf3 Cf8 62.Df5 Cd7 63.Re2 
  Les Blancs sont gagnants: +- (4.05)  Profondeur: 36/45   00:03:31  1781mN, tb=338
47...Dxf5 
  Les Blancs sont gagnants: +- (3.53 ++)  Profondeur: 37/61   00:04:20  2227mN, tb=518
47...Dxf5 
  Les Blancs ont un avantage décisif: +- (2.87 ++)  Profondeur: 37/61   00:04:20  2227mN, tb=518
47...Dxf5 48.exf5 Ff6 49.Te1 Cf8 50.Rc2 Cd7 51.Rd1 Rf7 52.De4 Re7 53.Te2 Tf7 54.Th3 Tf8 55.Tg2 Tg8 56.Df3 Rf7 57.Thh2 Re7 58.Dh3 Rf7 59.Dd3 Re7 60.Th1 Rf7 61.Te1 Re7 62.Rc2 Te8 63.Dd1 Rf7 64.Rb1 Tg8 65.Tf1 Ta8 66.Df3 Te8 67.Rc2 Tg8 
  Les Blancs ont un avantage décisif: +- (2.64)  Profondeur: 37/61   00:04:23  2261mN, tb=523
  ...
  ...
 47...Dxf5 48.exf5 Ff6 49.De4 Rf7 50.Rc1 Cf8 51.Th2 Cd7 52.Tgg2 Tg8 53.Rd2 Re7 54.Rd1 Rf7 55.Tg4 Re7 56.Re1 Th8 57.Dd3 Tg8 58.Dh3 Re8 59.Rf1 Re7 60.Te4 Te8 61.Tee2 Th8 62.Df3 Rf7 63.Re1 Re7 64.Thg2 Tg8 65.Dh3 Ta8 66.Rf1 Th8 67.Df3 Rf7 68.Tg3 Tg8 69.Dd3 
  Les Blancs sont nettement mieux: +- (2.14)  Profondeur: 45/64   00:08:44  6171mN, tb=793
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