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Up Topic The Rybka Lounge / Computer Chess / Only Stockfish @ PV=4 realizes it is a win
- By MrKris (**) Date 2019-05-18 09:22
From http://talkchess.com/forum3/viewtopic.php?f=2&t=70752

AMD PhII X6 Sy.6, 6cpu, latest versions,
analysis, and FEN, at bottom:
Stockfish @ PV 4 takes 1 to 2 seconds for the solution;
Houdini has the correct move but with 0.00, and will not play it in 'game' mode;
Komodo took 18 seconds to find the move but said it was 0.00;
Stockfish (PV 1) failed through 7 minutes;
KomodoMCTS has the correct move for a minute but changes its mind.

[Event "G/10'"]
[Site ""]
[Date "2019.05.18"]
[Round "?"]
[White "KomodoMCTS-13.01"]
[Black "Stockfish_19051713"]
[Result "1-0"]
[BlackElo "2000"]
[Time "00:07:07"]
[WhiteElo "2200"]
[TimeControl "600+0"]
[SetUp "1"]
[FEN "1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1"]
[Termination "normal"]
[PlyCount "20"]
[WhiteType "program"]
[BlackType "program"]

1. Qh6 {+0.08/15 7 ---at over 1 minute 'Analysis' it changes to other moves} Kd8 {-10.33/34 54 ---Note: Sf realizes its lost, but can not play 1.Qh6 below} 2. Kb7 {+2.71/16 10} e6 {-2.66/28 4}
3. Kxb8 {+4.40/16 13} Kd7+ {-7.00/30 15} 4. Ka7 {+5.82/17 14} Qc8 {-8.02/33
69} 5. Qf4 {+8.24/17 16} Qc7+ {-8.34/25 4} 6. Ka6 {+6.72/17 14} Qc8+
{-3.29/27 5} 7. Kb5 {+10.39/17 20} Qg8 {-11.52/30 10} 8. Qc1 {+8.31/17 15}
Qxg7 {-9.99/26 4} 9. Kxb6 {+7.86/16 13} h5 {-8.66/32 27} 10. b4 {+11.92/16
14} Qg3 {-27.44/31 46 Black resigns} 1-0
[Event "G/10'"]
[Site ""]
[Date "2019.05.18"]
[Round "?"]
[White "Stockfish_19051713"]
[Black "KomodoMCTS-13.01"]
[Result "1/2-1/2"]
[BlackElo "2200"]
[Time "00:20:18"]
[WhiteElo "2000"]
[TimeControl "600+0"]
[SetUp "1"]
[FEN "1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1"]
[Termination "unterminated"]
[PlyCount "39"]
[WhiteType "program"]
[BlackType "program"]

1. Kb7 {0.00/43 10 ---?? although above it realized it was lost after 1.Qh6} f5 {+0.25/15 7} 2. Qh6 {0.00/35 4} e6 {-0.06/15 10} 3.
Qf6 {0.00/39 4} f4 {-0.02/16 13} 4. Kxb8 {0.00/40 6} f3 {-0.02/16 14} 5.
Kc7 {0.00/40 5} Qf7+ {-0.01/16 15} 6. Kc6 {0.00/39 6} h6 {-0.01/18 34} 7.
Qxh6 {0.00/46 30} Qd7+ {-0.01/15 7} 8. Kxb6 {0.00/30 0} Qd8+ {-0.01/16 10}
9. Kb7 {0.00/44 8} Qe7+ {0.00/16 12} 10. Kc6 {0.00/46 10} Qd7+ {0.00/16 13}
11. Kb6 {0.00/47 5} Qd8+ {-0.01/17 14} 12. Kb7 {0.00/50 11} Qe7+ {0.00/16
14} 13. Kc6 {0.00/54 15} Qd7+ {0.00/17 15} 14. Kc5 {0.00/51 4} Qa7+
{0.00/18 30} 15. Kb5 {0.00/46 6} Qb7+ {0.00/17 14} 16. Kc5 {0.00/51 5} Qa7+
{0.00/17 13} 17. Kb5 {0.00/51 9} Qb7+ {0.00/17 12} 18. Ka4 {0.00/52 32}
Qa7+ {0.00/15 6} 19. Kb4 {0.00/52 30} Qxd4 {0.00/15 9 ½-½ User
Adjudication} 20. Kb5 {0.00/51 4} 1/2-1/2
[Event "G/10'"]
[Site "Sf slow mover=35"]
[Date "2019.05.18"]
[Round "?"]
[White "Stockfish_19051713_PV=4"]
[Black "KomodoMCTS-13.01"]
[Result "1-0"]
[BlackElo "2200"]
[Time "01:18:32"]
[WhiteElo "2000"]
[TimeControl "600+0"]
[SetUp "1"]
[FEN "1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1"]
[Termination "normal"]
[PlyCount "12"]
[WhiteType "program"]
[BlackType "program"]

1. Qh6 {+2.77/27 6} e6 {-0.02/15 7} 2. Qf6 {+6.71/32 6} h5 {-5.05/18 21} 3.
b4 {+12.82/36 34} h4 {-8.92/16 9} 4. Qh6 {+5.95/26 5} f5 {-9.32/17 14} 5.
Qh5+ {+13.44/33 11} Ke7 {-7.24/16 11} 6. Qxh4+ {+12.49/27 8} Ke8 {-11.25/17
26 Black resigns} 1-0
[Event "G/2 hours"]
[Site ""]
[Date "2019.05.18"]
[Round "?"]
[White "Houdini-6.03std"]
[Black "KomodoMCTS-13.01"]
[Result "1/2-1/2"]
[BlackElo "2200"]
[Time "01:01:20"]
[WhiteElo "2200"]
[TimeControl "7200+0"]
[SetUp "1"]
[FEN "1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1"]
[Termination "unterminated"]
[PlyCount "6"]
[WhiteType "program"]
[BlackType "program"]

1. Kb7 {-0.03/41 235 ---Houdini 'Analysis' finds 1.Qh6 with 0.00 but will not play it in 'game' mode -several tries} f6 {0.00/22 89} 2. Qc6+ {0.00/38 90} Kf7 {0.00/30
129} 3. Qxd5 {0.00/39 0 ½-½ User Adjudication} Kxg7 {0.00/23 15} 1/2-1/2
FEN: 1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1
Stockfish_19051713:  PV=4  ---------------------------------------------------------------------------
 21/38  00:01   9,220k  8,781k  -0.77  1.Kxd5 Kd8 2.Kc6 Qxg7 3.Kb7 Qg4 4.Kxb8 Qe6 5.Qc3 Ke8 6.Qg3 f5 7.exf6 exf6 8.Ka7 f5 9.b4 Kd7 10.b5 Qf6 11.Qh3 Kd6 12.Kxb6 f4 13.Ka6 Kd5+ 14.b6 f3 15.Qxh7 Qxd4
 21/15  00:01   9,220k  8,781k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7
 21/16  00:01   9,220k  8,781k   0.00  1.Qg5 b5 2.Qf5 e6 3.Qg5 b4 4.Kb7 Kd7 5.Qc1 Qxg7 6.Qc6+ Ke7 7.Qc5+ Ke8 8.Qc6+
 21/30  00:01   9,220k  8,781k  +1.52  1.Qh6 e6 2.Qf6 h5 3.Qh6 f5 4.Qxh5+ Ke7 5.Qg5+ Kf7 6.Qf6+ Ke8 7.Kb7 f4 8.Kxb8 f3 9.Kc7 Qf7+ 10.Kxb6 f2
---------------------------------------------------------------------------
 22/36  00:01   14,250k  9,025k  -0.51  1.Kxd5 Kd8 2.Kc6 Qxg7 3.Kb7 Qg4 4.Kxb8 Qe6 5.Qc3 Ke8 6.Qg3 f5 7.exf6 exf6 8.Ka7 Qd7+ 9.Ka6 Qxd4 10.Qg8+ Kd7 11.Qxh7+ Ke6 12.Qg6 Kd6 13.Qf7 Ke5 14.Qg7 Ke4 15.Qg4+ Ke3 16.Qe6+ Kd3
 22/22  00:01   14,250k  9,025k   0.00  1.Qg5 b5 2.Qf5 e6 3.Qg5 f6 4.Qxf6 Qf7 5.Qg5 Qd7+ 6.Kb6 Qc7+ 7.Kxb5 Qb7+ 8.Ka4 Qa7+ 9.Kb4 Qxd4+ 10.Kb5 Qd3+ 11.Kb4
 22/27  00:01   14,250k  9,025k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7
 22/47  00:01   14,250k  9,025k   0.00  1.Qh6 b5 2.Kb7 e6 3.Kxb8 Kd7+ 4.Ka7 b4 5.Qf6 h5 6.Qg5 h4 7.Kb6 Qb8+ 8.Kc5 Qa7+ 9.Kxb4 Qxd4+ 10.Kb5 Qd3+ 11.Kb4
---------------------------------------------------------------------------
 23/48  00:02   22,281k  9,173k  -0.28  1.Kxd5 Kd8 2.Kc6 Qxg7 3.Kb7 Qg4 4.Kxb8 Qe6 5.Qc3 Ke8 6.Qg3 f5 7.Kc7 Qd7+ 8.Kb8 Qc6 9.Qg8+ Kd7 10.Qxh7 Qc7+ 11.Ka8 Qc8+ 12.Ka7 Qc2 13.Kb7 b5 14.Kb6 Qd3 15.e6+ Kxe6 16.Qg8+ Kf6 17.Qf8+ Kg6 18.Qe8+ Kg5 19.Qxe7+ Kg4 20.Qf6 Qxb3
 23/15  00:02   22,281k  9,173k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7
 23/39  00:02   22,281k  9,173k   0.00  1.Qg5 b5 2.Qh6 b4 3.Kb7 e6 4.Kxb8 Kd7+ 5.Ka7 Qd8 6.Ka6 Qa8+ 7.Kb5 Qb8+ 8.Ka5 Qa7+ 9.Kxb4 Qxd4+ 10.Kb5 Qd3+ 11.Ka5 Qc3+ 12.Ka4 Qd4+
 23/31  00:02   22,281k  9,173k  +1.34  1.Qh6 b5 2.b4 e6 3.Qf6 h5 4.Qh6 f5 5.Qxh5+ Ke7 6.Qg5+ Kf7 7.Qf6+ Ke8 8.Kb7 f4 9.Kxb8 f3 10.Kb7 Qf7+ 11.Ka6 f2 12.g8Q+ Qxg8 13.Qxf2 Kd7 14.Kxb5 Qb8+ 15.Ka4
---------------------------------------------------------------------------
 24/51  00:03   30,925k  9,278k  -0.32  1.Kxd5 Kd8 2.Kc6 Qxg7 3.Kb7 Qg4 4.Kxb8 Qe6 5.Qc3 Ke8 6.Qg3 f5 7.Kc7 Qd7+ 8.Kb8 Qc6 9.Qh3 Qc2 10.Qf3 Qe4 11.Qh5+ Kd7 12.Qxh7 Qc2 13.Qf7 Qc8+ 14.Ka7 Qc6 15.Qf8 b5 16.b4 Qe6 17.Kb7 Qd5+ 18.Kb8
 24/15  00:03   30,925k  9,278k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7
 24/43  00:03   30,925k  9,278k   0.00  1.Qg5 b5 2.Qh6 b4 3.Kb7 e6 4.Kxb8 Kd7+ 5.Ka7 Qd8 6.Ka6 Qa8+ 7.Kb5 Qb8+ 8.Ka5 Qa7+ 9.Kxb4 Qxd4+ 10.Kb5 Qd3+ 11.Ka4 Qd4+
 24/41  00:03   30,925k  9,278k  +2.30  1.Qh6 b5 2.b4 e6 3.Qf6 Ba7 4.Kc7 Bb6+ 5.Kxb6 Kd7 6.Kxb5 h5 7.Ka4 h4 8.b5 h3 9.Qh6 h2 10.Kb4 h1Q 11.Qxh1 Qxg7 12.Qc1 Qf8+ 13.Qc5 Qxc5+ 14.dxc5 Kc7 15.Kb3 Kb7 16.b6
---------------------------------------------------------------------------
...
---------------------------------------------------------------------------
 37/27  01:07   680,761k  10,054k   0.00  1.Kxd5 Kd8 2.Kc6 Qxg7 3.Kb7 Qg4 4.Kxb8 Qe6 5.Qc3 Ke8 6.Qg3 f5 7.Kc7 Qd7+ 8.Kb8 Qd8+ 9.Kb7 Qd5+ 10.Kc7 b5 11.Qg7 Qd7+ 12.Kb8 Qd8+ 13.Kb7 Qd5+
 37/15  01:07   680,761k  10,054k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7
 37/30  01:07   680,761k  10,054k   0.00  1.Qg5 b5 2.Kb7 f6 3.exf6 exf6 4.Qxf6 Bg3 5.Kb6 b4 6.Kc5 Bb8 7.Kxb4 h5 8.Qh6 h4 9.Qh5+ Ke7 10.Qxh4+ Kf7 11.Qg5 Bd6+ 12.Kc3 Qxg7 13.Qxd5+ Ke7 14.Qb7+ Kf6 15.Qxg7+
 38/60  01:07   680,761k  10,054k  +9.57  1.Qh6 Kd8 2.Qh3 e6 3.Qh4+ Ke8 4.Qf6 h6 5.Qxh6 f5 6.Qg6+ Kd8 7.Qf6+ Ke8 8.Kb7 f4 9.Kxb8 f3 10.Qxf3 Qxg7 11.Qc3 Qh6 12.Kc7 Qg7+ 13.Kxb6 Qg4 14.Qc8+ Kf7 15.Kc5 Kg7 16.Qe8 Kh7 17.b4 Kg7 18.Qe7+ Kh8 19.Qf6+ Kh7 20.b5 Qh3 21.Kd6 Qa3+ 22.Kxe6 Qa8 23.Qf7+ Kh8 24.Qe7 Qb8 25.b6

____________ Houdini-6.03std:
...
 30/78  00:20   265,181k  13,217k   0.00  1.Qh6 b5 2.Kb7 f6 3.e6 Qxe6 4.Qxh7 Qd7+ 5.Kxb8 Qd8+ 6.Kb7 Qd7+ 7.Kb6 Qd6+ 8.Kxb5 Qb8+ 9.Ka4 Qa7+ 10.Kb4 Qb6+ 11.Kc3 Qa5+ 12.Kd3 Qb5+ 13.Kd2 Qa5+ 14.Ke2 Qa2+ 15.Kf3 Qxb3+ 16.Kf4
 31/78+  00:32   419,399k  13,069k  +0.07  1.Qh6
 31/78+  00:34   444,432k  12,998k  +0.14  1.Qh6
 31/78+  00:36   470,607k  12,972k  +0.24  1.Qh6
 31/78+  00:38   496,120k  12,980k  +0.39  1.Qh6
 31/78+  00:41   536,967k  12,974k  +0.60  1.Qh6
 31/78+  00:46   601,336k  12,976k  +0.87  1.Qh6
 31/78+  00:50   652,610k  12,995k  +1.23  1.Qh6
...
 32/92  02:23   1,796,157k  12,489k  +3.86  1.Qh6

____________ Stockfish_19051713:  PV=1 (default)
...
 31/15  00:01   10,444k  8,972k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7
...
 62/15  07:01   3,819,224k  9,052k   0.00  1.Kb7 f6 2.Qc6+ Kf7 3.Qxd5+ Kxg7 4.exf6+ Kh8 5.Qxg8+ Kxg8 6.fxe7 Kf7 7.Kxb8 Kxe7

____________ Komodo-13.01:
...
 36  00:17   161,970k  9,010k   0.00  1.Qg5 b5 2.Kb7 f6 3.exf6 exf6 4.Qxf6 Bh2 5.Ka6 b4 6.Kb5 Bg3 7.Kc5 Kd7 8.Qf5+ Kc7 9.Qf6 Kd7
 36+  00:18   165,614k  9,009k  +0.06  1.Qh6 e6 2.Qf6
 36+  00:19   173,591k  9,021k  +0.14  1.Qh6 e6 2.Qf6
 36-  00:23   213,484k  9,082k  +0.09  1.Qh6 b5
 36  00:25   227,452k  9,082k   0.00  1.Qh6 b5 2.Kb7 f6 3.e6 Qxe6 4.Qxh7 Qd7+ 5.Kxb8 Qd6+ 6.Kb7 Qd7+ 7.Kb6 Qd6+ 8.Kxb5 Qb8+ 9.Ka5 Qc7+ 10.Kb4 Qb6+ 11.Kc3 Qa5+ 12.Kd3 Qb5+ 13.Ke3 Qxb3+ 14.Kf2 Qb2+ 15.Kg3 Qc3+ 16.Kg2 Qd2+ 17.Kh3 Qc3+ 18.Kg2
...
 50  05:29   2,991,160k  9,078k   0.00  1.Qh6 b5 2.Kb7 f6 3.e6 Qxe6 4.Qxh7 Qd7+ 5.Kxb8 Qd6+ 6.Kb7 Qd7+ 7.Kb6 Qd6+ 8.Kxb5 Qb8+ 9.Ka5 Qc7+ 10.Kb4 Qb6+ 11.Kc3 Qa5+ 12.Kd3 Qb5+ 13.Ke3 Qxb3+ 14.Kf2 Qb2+ 15.Kg3 Qc3+ 16.Kg2 Qd2+ 17.Kh3 Qc3+ 18.Kg4 Qxd4+ 19.Kh3 Qc3+ 20.Kg2 Qd2+ 21.Kf3 Qc3+ 22.Kg2

Up Topic The Rybka Lounge / Computer Chess / Only Stockfish @ PV=4 realizes it is a win

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