Next Komodo vs GM match - 2 pawns

[lkaufman]

First game was a draw; Komodo played the famous Lasker two-bishop sacrifice to force perpetual check still down two pawns.

[JJJ]

I d like to see this game or get the pgn plz !

[lkaufman]

[Event "Rapid 50m+35s-45m+15s"]
[Site "Potomac"]
[Date "2016.07.16"]
[Round "1"]
[White "Komodo 1668.00 64-bit"]
[Black "Erenburg, Sergey"]
[Result "1/2-1/2"]
[Annotator "Kaufman,Larry"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/P1PP1PPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "44"]
[TimeControl "2700+15"]

{12288MB, Book2016.ctg, 24core} 1. d4 {0} d5 {14} 2. Nf3 {82} Bg4 {97} 3. Nbd2
{150} c6 {68} 4. h3 {193} Bxf3 {38} 5. Nxf3 {43} e6 {22} 6. c3 {109} Nd7 {80}
7. Bf4 {89} Ngf6 {205} 8. Bd3 {59} Be7 {34} 9. O-O {45} O-O {26} 10. Qe2 {81}
Qa5 {164} 11. Rfb1 {77} b5 {1087} 12. a4 {166} b4 {57} 13. cxb4 {0} Bxb4 {14}
14. Ne5 {120} Nxe5 {149} 15. Bxe5 {84} Nd7 {617} 16. Bxh7+ {0} Kxh7 {16} 17.
Qh5+ {54} Kg8 {18} 18. Bxg7 {37} Kxg7 {43} 19. Qg5+ {218} Kh7 {19} 20. Qh5+ {
138} Kg7 {28} 21. Qg5+ {207} Kh7 {20} 22. Qh5+ {91} Kg7 {13} 1/2-1/2

[lkaufman]

Here is the second game, also drawn.

[Event "Rapid 50m+35s-45m+15s"]
[Site "Potomac"]
[Date "2016.07.16"]
[Round "2"]
[White "Komodo 1668.00 64-bit"]
[Black "Erenburg, Sergey"]
[Result "1/2-1/2"]
[Annotator "Kaufman,Larry"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PP1P1PPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "72"]
[TimeControl "2700+15"]

{12288MB, Book2016.ctg, 24core} 1. d4 {0} d5 {16} 2. Nf3 {0} c6 {12} 3. Nc3 {
157} Bg4 {36} 4. Qb3 {199} Qb6 {277} 5. Ne5 {0} Nf6 {219} 6. Nxg4 {68} Nxg4 {39
} 7. Qd1 {2} Nf6 {36} 8. a3 {59} e6 {79} 9. Be3 {110} Nbd7 {112} 10. Bd3 {81}
Bd6 {69} 11. O-O {5} O-O {85} 12. f4 {15} Rfc8 {224} 13. Kh1 {89} Qd8 {324} 14.
g4 {46} g6 {410} 15. Qe2 {0} c5 {101} 16. f5 {213} cxd4 {80} 17. Bxd4
exf5 {401} 18. gxf5 {96} Bc5 {37} 19. Bxf6 {35} Nxf6 {17} 20. Rad1 {89} Rc6 {
295} 21. Bc4 {0} Qe7 {106} 22. Nxd5 {0} Nxd5 {99} 23. Rxd5 {0} Qxe2 {56} 24.
Bxe2 {86} gxf5 {241} 25. Rdxf5 {91} Rf8 {41} 26. Bc4 {118} Rc7 {57} 27. a4 {22}
b6 {27} 28. Kg2 {44} Kg7 {56} 29. R1f4 {5} Rd7 {52} 30. Rg4+ {28} Kh8 {15} 31.
Kh3 {68} Rd4 {75} 32. b3 {127} Rxg4 {31} 33. Kxg4 {41} a5 {20} 34. Bxf7 {121}
Kg7 {16} 35. Bd5 {45} Rxf5 {16} 36. Kxf5 {11} h6 {22} 1/2-1/2

[Nordlandia]

[pgn][Event "Rapid 50m+35s-45m+15s"]
[Site "Potomac"]
[Date "2016.07.16"]
[Round "1"]
[White "Komodo 1668.00 64-bit"]
[Black "Erenburg, Sergey"]
[Result "1/2-1/2"]
[Annotator "Kaufman,Larry"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/P1PP1PPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "44"]
[EventDate "2016.??.??"]
[EventType "rapid"]
[TimeControl "2700+15"]

{12288MB, Book2016.ctg, 24core} 1. d4 {0} d5 {14} (1... e6 2. Nf3 c5 {-1.54/26
Komodo 9.3 64-bit}) 2. Nf3 {82} Bg4 {97} (2... e6 3. c4 Nf6 {-1.53/23 Komodo 9.
42 64-bit}) 3. Nbd2 {150} (3. Nbd2 Nc6 4. h3 {-1.09/21 Deep Fritz 14 x64}) 3...
c6 {68} (3... Nf6 4. h3 Bxf3 {-1.26/26 Stockfish 5 64 SSE4.2}) 4. h3 {193} (4.
c4 Nf6 {-1.27/26 Komodo 10 64-bit full Syzygy on SSD 8350}) 4... Bxf3 {38} (
4... Bf5 5. Rb1 Qc7 {-0.64/20 Critter 1.5.37 64-bit}) 5. Nxf3 {43} (5. Qxf3 Nf6
{-1.29/24 Komodo 9.2 64-bit}) 5... e6 {22} (5... e6 6. Bd2 Qc7 {-1.32/26
Stockfish 7 64}) 6. c3 {109} Nd7 {80} (6... Qc7 7. Bd3 Bd6 {-1.38/26 Stockfish
260616 64 POPCNT}) 7. Bf4 {89} (7. Bf4 Nb6 8. Bd3 {-1.01/28 Komodo 10 64-bit})
7... Ngf6 {205} (7... Nb6 8. Bd3 Bd6 {-1.11/27 Komodo 10 64-bit}) 8. Bd3 {59} (
8. Bd3 Nb6 9. Ne5 {-1.02/27 Komodo 10 64-bit}) 8... Be7 {34} (8... Nb6 9. O-O
Bd6 {-1.20/27 Stockfish 7 64}) 9. O-O {45} (9. O-O O-O 10. Qe2 {-1.09/20 Deep
Fritz 13}) 9... O-O {26} (9... Qa5 10. Qb3 b6 {-1.15/21 Deep Fritz 14 x64}) 10.
Qe2 {81} (10. Re1 {-1.08/25 Stockfish 080716 64 POPCNT}) 10... Qa5 {164} 11.
Rfb1 {77} (11. Rfb1 b6 {-0.77/26 Komodo 9.3 64-bit}) 11... b5 {1087} 12. a4 {
166} (12. a3 h6 13. a4 {-1.03/20 Fritz 15}) 12... b4 {57} (12... b4 13. cxb4 {
-0.74/27 Komodo 10 64-bit}) 13. cxb4 {0} Bxb4 {14} (13... Bxb4 14. Ne5 Rfc8 {
-0.56/24 Deep Fritz 13}) 14. Ne5 {120} (14. Ne5 {-0.79/29 Stockfish 7 64})
14... Nxe5 {149} 15. Bxe5 {84} (15. Bxe5 Ne8 {-0.37/30 Stockfish 6 x64}) 15...
Nd7 {617} 16. Bxh7+ {0} (16. Bxh7+ Kxh7 17. Qh5+ {0.00/37 Komodo 10 64-bit})
16... Kxh7 {16} (16... Kxh7 17. Qh5+ Kg8 {0.00/27 Deep Fritz 14 x64}) 17. Qh5+
{54} Kg8 {18} (17... Kg8 18. Bxg7 Kxg7 {0.00/41 Stockfish 6 64}) 18. Bxg7 {37}
(18. Bxg7 Kxg7 19. Qg4+ {0.00/21 Houdini 3 x64}) 18... Kxg7 {43} (18... Kxg7
19. Qg4+ Kh7 {0.00/39 Stockfish 7 64}) 19. Qg5+ {218} Kh7 {19} 20. Qh5+ {138} (
20. Qh4+ Kg7 21. Qg5+ {0.00/38 Komodo 10 64-bit}) 20... Kg7 {28} (20... Kg7 21.
Qg5+ Kh7 {0.00/31 Komodo 10 64-bit}) 21. Qg5+ {207} Kh7 {20} 22. Qh5+ {91} Kg7
{13} 1/2-1/2

[/pgn]

Lichess Auto Analysis - https://en.lichess.org/kKP66Vey

--------------

[pgn][Event "Rapid 50m+35s-45m+15s"]
[Site "Potomac"]
[Date "2016.07.16"]
[Round "2"]
[White "Komodo 1668.00 64-bit"]
[Black "Erenburg, Sergey"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PP1P1PPP/RNBQKBNR w KQkq - 0 1"]
[PlyCount "75"]
[EventDate "2016.??.??"]
[EventType "rapid"]

1. d4 d5 (1... e6 2. Nf3 d5 {-1.20/20 Komodo 10 64-bit}) 2. Nf3 (2. Nc3 Nf6 3.
Nf3 {-0.98/16 Deep Rybka 4 w32}) 2... c6 (2... Nc6 3. h3 e6 {-1.34/25 Komodo
10 64-bit}) 3. Nc3 (3. Qc2 Nf6 {-1.32/25 Komodo 9.3 64-bit}) 3... Bg4 (3... Bg4
4. h3 Bxf3 {-0.96/20 Houdini 1.5a x64}) 4. Qb3 (4. h3 {-1.60/25 Stockfish 7 64}
) 4... Qb6 5. Ne5 Nf6 6. Nxg4 (6. Nxg4 Nxg4 7. Qd1 {-1.30/27 Komodo 10 64-bit})
6... Nxg4 (6... Nxg4 7. Qxb6 axb6 {-1.74/24 Stockfish 7 64}) 7. Qd1 (7. Qd1 Nf6
8. a3 {-1.50/23 Deep Fritz 14 x64}) 7... Nf6 (7... Nf6 8. a3 e6 {-1.43/27
Komodo 10 64-bit}) 8. a3 (8. Be2 e6 9. O-O {-1.51/19 Fritz 11 SE}) 8... e6 (
8... Nbd7 9. Bf4 e6 {-1.81/22 Deep Fritz 13}) 9. Be3 Nbd7 10. Bd3 (10. Bd3 Qd8
11. O-O {-1.48/26 Komodo 10 64-bit}) 10... Bd6 (10... Qc7 11. O-O a6 {-1.94/26
Stockfish 260616 64 POPCNT}) 11. O-O O-O (11... O-O 12. Rc1 Qc7 {-1.83/20 Deep
Fritz 13}) 12. f4 (12. Qc2 Rfe8 13. Rac1 {-1.67/23 Stockfish 6 64}) 12... Rfc8
13. Kh1 Qd8 14. g4 g6 15. Qe2 (15. Qe2 Qb6 16. Rac1 {-1.23/24 Komodo 10 64-bit}
) 15... c5 (15... c5 16. Rad1 {-1.10/16 Komodo 10 64-bit}) 16. f5 cxd4 (16...
cxd4 {-1.41/24 Komodo 9.2 64-bit}) 17. Bxd4 exf5 18. gxf5 (18. gxf5 Bc5 19.
Bxf6 {-0.78/24 Komodo 9.02 64-bit}) 18... Bc5 (18... Bc5 19. Bxf6 Nxf6 {
-0.74/22 Komodo 8 64-bit}) 19. Bxf6 (19. Bxf6 Nxf6 20. fxg6 {-0.96/18 Fritz 15}
) 19... Nxf6 (19... Nxf6 20. Rad1 Rc6 {-0.81/18 Fritz 15}) 20. Rad1 Rc6 21. Bc4
Qe7 22. Nxd5 Nxd5 23. Rxd5 Qxe2 24. Bxe2 (24. Bxe2 Rc7 25. a4 {-0.68/31
Stockfish 5 64 SSE4.2}) 24... gxf5 25. Rdxf5 Rf8 26. Bc4 Rc7 27. a4 b6 (27...
Bd4 28. b3 Re7 {-0.30/24 Deep Fritz 14 x64}) 28. Kg2 Kg7 29. R1f4 (29. R1f4 Rd7
30. Kf3 {-0.12/29 Komodo 10 64-bit}) 29... Rd7 (29... Re7 30. b3 Bd6 {-0.15/27
Stockfish 7 64}) 30. Rg4+ (30. Kf3 a5 31. Bd5 {-0.32/22 Deep Fritz 14 x64})
30... Kh8 (30... Kh8 31. Kh3 Bd4 {-0.28/20 Deep Rybka 4 SSE42 x64}) 31. Kh3 Rd4
32. b3 Rxg4 33. Kxg4 (33. Kxg4 Kg7 34. Rg5+ {0.00/36 Komodo 9.3 64-bit}) 33...
a5 34. Bxf7 Kg7 (34... Kg7 35. Bd5 Re8 {0.00/29 Deep Fritz 14 x64}) 35. Bd5
Rxf5 (35... Re8 36. h4 Re7 {0.10/29 Fritz 15}) 36. Kxf5 h6 (36... Bg1 37. h3
Bf2 {0.00/46 Komodo 10 64-bit}) 37. h4 Kf8 38. Ke6 {0.21/33 Fritz 15} 1/2-1/2

[/pgn]

Lichess Auto Analysis - https://en.lichess.org/jsjlnX6h#0

[Laskos]

First game was a draw; Komodo played the famous Lasker two-bishop sacrifice to force perpetual check still down two pawns.

Do you think Komodo should pro-actively seek draws? Several moves before the sacrifice, Komodo was effectively one pawn down in all reasonable variations, having positional advantage, with an eval of -0.70. The position was winnable for Komodo, if GM continued with his inaccuracies. With Contempt set at 150, Komodo doesn't go for the draw-sacrifice even when given direct opportunity.

[Nordlandia]

First game was a draw; Komodo played the famous Lasker two-bishop sacrifice to force perpetual check still down two pawns.

Do you think Komodo should pro-actively seek draws? Several moves before the sacrifice, Komodo was effectively one pawn down in all reasonable variations, having positional advantage, with an eval of -0.70. The position was winnable for Komodo, if GM continued with his inaccuracies. With Contempt set at 150, Komodo doesn't go for the draw-sacrifice even when given direct opportunity.

I think Larry & Mark have to consider implement "swindle mode"

[Laskos]

First game was a draw; Komodo played the famous Lasker two-bishop sacrifice to force perpetual check still down two pawns.

Do you think Komodo should pro-actively seek draws? Several moves before the sacrifice, Komodo was effectively one pawn down in all reasonable variations, having positional advantage, with an eval of -0.70. The position was winnable for Komodo, if GM continued with his inaccuracies. With Contempt set at 150, Komodo doesn't go for the draw-sacrifice even when given direct opportunity.

I think Larry & Mark have to consider implement "swindle mode"

It's simply the info given to Komodo that forced draw 0.00 is worse than dynamical 0.00. Not only that, but for early middlegame in the handicap match against 700 points weaker human player, forced draw 0.00 is worse than even the dynamical -0.80, because from early middlegame dynamical -0.80, Komodo is expected to perform well against a 700 points weaker human player. This seeking of forced draw issue can be fixed by some sort of Contempt component.

[Nordlandia]

Kai: do you think last sf dev can draw H4 Pro with exchange odds?

a1 for f8 bishop.

SF easily draws in this setup: no castling rights for black.

[d]rnbqkbnr/pppppppp/8/8/8/8/1PPPPPP1/RNBQKBNR w KQ - 0 1

[Laskos]

Kai: do you think last sf dev can draw H4 Pro with exchange odds?

a1 for f8 bishop.

SF easily draws in this setup: no castling rights for black.

[d]rnbqkbnr/pppppppp/8/8/8/8/1PPPPPP1/RNBQKBNR w KQ - 0 1

Depends on time control. At long time controls, I think SF will mostly lose against H4 with exchange odds.