Stockfish 1 with 12 threads and 2 hours vs Stockfish 17.1 with 12 threads and 1 minute, who wins?

[Jouni]

MY ran just interesting 100 to 1 handicap matches here https://prodeo.actieforum.com/f1-computer-chess .

[Leto]

Turns out Stockfish 1 only supports maximum of 8 threads so the handicap wasn't as big as I thought. I will still go ahead with the 240 to 1 ratio game but I'll set Stockfish 17.1 to 8 threads to make it fairer.

[Leto]

So this time I set them both to 8 threads to make it fairer, and I tried the 240 to 1 ratio by giving Stockfish 17.1 only 0.25s per move and Stockfish 1.9.1 1 minute per move, and again no book. Stockfish 17.1 won scoring 99.6 accuracy versus Stockfish 1's 94.5 accuracy according to chess.com.

[Event "My Tournament"]
[Site "?"]
[Date "2025.11.06"]
[Round "1"]
[White "Stockfish 17.1 8CPU"]
[Black "Stockfish 1.9.1 8CPU"]
[Result "1-0"]
[ECO "C13"]
[WhiteFideId "-1"]
[WhiteFideId "-1"]
[PlyCount "84"]
[GameId "2241401387561316"]
[EventDate "2025.??.??"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 7. Qg4 Bxg5 8. hxg5 c5 9. dxc5 Nxe5 10. Qg3 Nbc6 11. O-O-O Qa5 12. f4 Ng6 13. f5 Nge7 14. f6 gxf6 15. gxf6 Nf5 16. Qe1 Qxc5 17. Nxd5 Ncd4 18. c4 Bd7 19. b4 Qd6 20. g4 Rc8 21. Kb2 Ba4 22. Rd2 Qg3 23. Qe4 Nb3 24. Rdh2 Nd6 25. Qe3 Qxe3 26. Nxe3 Nd4 27. Rd2 e5 28. Rh5 Kf8 29. Bd3 Rd8 30. Bb1 Rg8 31. Bxh7 Rh8 32. c5 Ne8 33. g5 Nc6 34. Rdh2 e4 35. Bxe4 Rd2+ 36. Rxd2 Rxh5 37. Nf3 Nxb4 38. Rd4 a5 39. a3 Na6 40. Rxa4 Nxc5 41. Rc4 Nxe4 42. Rxe4 Rh3 1-0


And here's the output from Cutechess:
[Event "My Tournament"]
[Site "?"]
[Date "2025.11.06"]
[Round "1"]
[White "Stockfish 17.1 8CPU"]
[Black "Stockfish 1.9.1 8CPU"]
[Result "1-0"]
[BlackTimeControl "60/move"]
[ECO "C13"]
[GameDuration "00:42:12"]
[GameEndTime "2025-11-06T20:50:27.118 Eastern Standard Time"]
[GameStartTime "2025-11-06T20:08:14.310 Eastern Standard Time"]
[Opening "French"]
[PlyCount "84"]
[Termination "adjudication"]
[Variation "Albin-Alekhine-Chatard attack, Maroczy variation"]
[WhiteTimeControl "0.25/move"]

1. e4 {+0.39/18 0.25s} e6 {-0.20/25 60s} 2. d4 {+0.41/18 0.25s}
d5 {-0.16/27 60s} 3. Nc3 {+0.46/20 0.25s} Nf6 {0.00/25 60s}
4. Bg5 {+0.42/19 0.25s} Be7 {0.00/27 60s} 5. e5 {+0.56/18 0.25s}
Nfd7 {0.00/25 60s} 6. h4 {+0.62/17 0.25s} a6 {-0.08/25 60s}
7. Qg4 {+1.17/16 0.25s} Bxg5 {0.00/26 60s} 8. hxg5 {+1.18/17 0.25s}
c5 {-0.28/26 60s} 9. dxc5 {+1.21/14 0.25s} Nxe5 {0.00/26 60s}
10. Qg3 {+1.49/19 0.26s} Nbc6 {-0.04/26 60s} 11. O-O-O {+1.46/16 0.25s}
Qa5 {0.00/26 60s} 12. f4 {+1.52/17 0.25s} Ng6 {0.00/26 60s}
13. f5 {+1.53/18 0.25s} Nge7 {+0.16/24 60s} 14. f6 {+1.68/17 0.25s}
gxf6 {-0.72/23 60s} 15. gxf6 {+1.63/15 0.25s} Nf5 {-0.64/23 60s}
16. Qe1 {+1.71/16 0.25s} Qxc5 {-0.92/24 60s} 17. Nxd5 {+1.95/16 0.25s}
Ncd4 {-0.68/25 60s} 18. c4 {+1.98/17 0.25s} Bd7 {-0.60/26 60s}
19. b4 {+1.93/17 0.25s} Qd6 {-0.76/24 60s} 20. g4 {+1.99/17 0.25s}
Rc8 {-1.37/23 60s} 21. Kb2 {+2.25/16 0.25s} Ba4 {-1.45/24 60s}
22. Rd2 {+2.58/13 0.25s} Qg3 {-1.53/24 60s} 23. Qe4 {+2.90/14 0.25s}
Nb3 {-1.29/25 60s} 24. Rdh2 {+2.87/16 0.25s} Nd6 {-1.41/26 60s}
25. Qe3 {+2.97/16 0.25s} Qxe3 {-1.37/26 60s} 26. Nxe3 {+2.83/13 0.25s}
Nd4 {-1.73/26 60s} 27. Rd2 {+2.95/14 0.25s} e5 {-1.69/25 60s}
28. Rh5 {+3.02/15 0.25s} Kf8 {-2.34/24 60s} 29. Bd3 {+3.06/16 0.25s}
Rd8 {-2.38/25 60s} 30. Bb1 {+3.27/17 0.25s} Rg8 {-2.50/25 60s}
31. Bxh7 {+3.51/15 0.25s} Rh8 {-2.82/26 60s} 32. c5 {+3.71/14 0.25s}
Ne8 {-3.63/26 60s} 33. g5 {+3.89/15 0.25s} Nc6 {-3.51/25 60s}
34. Rdh2 {+4.38/15 0.25s} e4 {-5.25/24 60s} 35. Bxe4 {+4.65/18 0.25s}
Rd2+ {-5.13/29 60s} 36. Rxd2 {+4.72/14 0.25s} Rxh5 {-5.57/30 60s}
37. Nf3 {+4.83/18 0.25s} Nxb4 {-5.49/29 60s} 38. Rd4 {+4.89/16 0.25s}
a5 {-5.37/30 60s} 39. a3 {+5.11/16 0.25s} Na6 {-6.22/29 60s}
40. Rxa4 {+4.99/16 0.25s} Nxc5 {-6.02/26 60s} 41. Rc4 {+5.04/17 0.25s}
Nxe4 {-7.79/25 60s} 42. Rxe4 {+5.11/17 0.25s}
Rh3 {-8.12/25 60s, White wins by adjudication} 1-0

Only three inaccuracies according to chess.com and they were all from Stockfish 1. The inaccuracies were 16...Qxc5, 20...Rc8, and 30...Rg8. So I'm still thinking there's a limit to how strong an engine can get if you give it enough time and this makes logical sense to me. If you have a flawed system for deciding moves then there will be instances in which infinite time will not be enough for it to find the best moves.

[jkominek]

Only three inaccuracies according to chess.com and they were all from Stockfish 1. The inaccuracies were 16...Qxc5, 20...Rc8, and 30...Rg8.

Chess.com may not have the best game analysis going. According the the giant opening tree database chessdb.cn, the move 16...Qxc5 is, currently, listed as the best available. If so that disqualifies it from being an inaccuracy let alone an outright error.

Given the strength of SF17.1 and weakness of SF1.91, very likely there is but a single theoretical mistake in the game. chessdb.cn suggests a deeper look at 6...a6. After that move the evaluation for white jumps from 4 centipawns to 114, just over the win/draw border -- with the game fate perhaps sealed a move later with 7...Bxg5, having an evaluation of 149. A caveat need be mentioned though. These numbers are from shallow searches. That's where following with deep homefish/homeleela analysis helps.

So I'm still thinking there's a limit to how strong an engine can get if you give it enough time and this makes logical sense to me. If you have a flawed system for deciding moves then there will be instances in which infinite time will not be enough for it to find the best moves.

Well that's a fair conjecture. It raises an interesting question too. Theoretically, an alpha-beta search with no heuristic pruning will eventually - VERY eventually - yield the correct answer every time. If an engine with speculative selective search such as SF1.91 has an inherent limit to its performance then, at some point, the full-width non-selective search will surpass it. Turtle overtaking the hare, so to speak.

The same could be said of the latest super-strong Stockfish. When given infinite time it too may never find the correct move to some positions. But since there is a supply shortage of infinite computers, how would anyone know?

[Uri Blass]

So this time I set them both to 8 threads to make it fairer, and I tried the 240 to 1 ratio by giving Stockfish 17.1 only 0.25s per move and Stockfish 1.9.1 1 minute per move, and again no book. Stockfish 17.1 won scoring 99.6 accuracy versus Stockfish 1's 94.5 accuracy according to chess.com.

[Event "My Tournament"]
[Site "?"]
[Date "2025.11.06"]
[Round "1"]
[White "Stockfish 17.1 8CPU"]
[Black "Stockfish 1.9.1 8CPU"]
[Result "1-0"]
[ECO "C13"]
[WhiteFideId "-1"]
[WhiteFideId "-1"]
[PlyCount "84"]
[GameId "2241401387561316"]
[EventDate "2025.??.??"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 7. Qg4 Bxg5 8. hxg5 c5 9. dxc5 Nxe5 10. Qg3 Nbc6 11. O-O-O Qa5 12. f4 Ng6 13. f5 Nge7 14. f6 gxf6 15. gxf6 Nf5 16. Qe1 Qxc5 17. Nxd5 Ncd4 18. c4 Bd7 19. b4 Qd6 20. g4 Rc8 21. Kb2 Ba4 22. Rd2 Qg3 23. Qe4 Nb3 24. Rdh2 Nd6 25. Qe3 Qxe3 26. Nxe3 Nd4 27. Rd2 e5 28. Rh5 Kf8 29. Bd3 Rd8 30. Bb1 Rg8 31. Bxh7 Rh8 32. c5 Ne8 33. g5 Nc6 34. Rdh2 e4 35. Bxe4 Rd2+ 36. Rxd2 Rxh5 37. Nf3 Nxb4 38. Rd4 a5 39. a3 Na6 40. Rxa4 Nxc5 41. Rc4 Nxe4 42. Rxe4 Rh3 1-0


And here's the output from Cutechess:
[Event "My Tournament"]
[Site "?"]
[Date "2025.11.06"]
[Round "1"]
[White "Stockfish 17.1 8CPU"]
[Black "Stockfish 1.9.1 8CPU"]
[Result "1-0"]
[BlackTimeControl "60/move"]
[ECO "C13"]
[GameDuration "00:42:12"]
[GameEndTime "2025-11-06T20:50:27.118 Eastern Standard Time"]
[GameStartTime "2025-11-06T20:08:14.310 Eastern Standard Time"]
[Opening "French"]
[PlyCount "84"]
[Termination "adjudication"]
[Variation "Albin-Alekhine-Chatard attack, Maroczy variation"]
[WhiteTimeControl "0.25/move"]

1. e4 {+0.39/18 0.25s} e6 {-0.20/25 60s} 2. d4 {+0.41/18 0.25s}
d5 {-0.16/27 60s} 3. Nc3 {+0.46/20 0.25s} Nf6 {0.00/25 60s}
4. Bg5 {+0.42/19 0.25s} Be7 {0.00/27 60s} 5. e5 {+0.56/18 0.25s}
Nfd7 {0.00/25 60s} 6. h4 {+0.62/17 0.25s} a6 {-0.08/25 60s}
7. Qg4 {+1.17/16 0.25s} Bxg5 {0.00/26 60s} 8. hxg5 {+1.18/17 0.25s}
c5 {-0.28/26 60s} 9. dxc5 {+1.21/14 0.25s} Nxe5 {0.00/26 60s}
10. Qg3 {+1.49/19 0.26s} Nbc6 {-0.04/26 60s} 11. O-O-O {+1.46/16 0.25s}
Qa5 {0.00/26 60s} 12. f4 {+1.52/17 0.25s} Ng6 {0.00/26 60s}
13. f5 {+1.53/18 0.25s} Nge7 {+0.16/24 60s} 14. f6 {+1.68/17 0.25s}
gxf6 {-0.72/23 60s} 15. gxf6 {+1.63/15 0.25s} Nf5 {-0.64/23 60s}
16. Qe1 {+1.71/16 0.25s} Qxc5 {-0.92/24 60s} 17. Nxd5 {+1.95/16 0.25s}
Ncd4 {-0.68/25 60s} 18. c4 {+1.98/17 0.25s} Bd7 {-0.60/26 60s}
19. b4 {+1.93/17 0.25s} Qd6 {-0.76/24 60s} 20. g4 {+1.99/17 0.25s}
Rc8 {-1.37/23 60s} 21. Kb2 {+2.25/16 0.25s} Ba4 {-1.45/24 60s}
22. Rd2 {+2.58/13 0.25s} Qg3 {-1.53/24 60s} 23. Qe4 {+2.90/14 0.25s}
Nb3 {-1.29/25 60s} 24. Rdh2 {+2.87/16 0.25s} Nd6 {-1.41/26 60s}
25. Qe3 {+2.97/16 0.25s} Qxe3 {-1.37/26 60s} 26. Nxe3 {+2.83/13 0.25s}
Nd4 {-1.73/26 60s} 27. Rd2 {+2.95/14 0.25s} e5 {-1.69/25 60s}
28. Rh5 {+3.02/15 0.25s} Kf8 {-2.34/24 60s} 29. Bd3 {+3.06/16 0.25s}
Rd8 {-2.38/25 60s} 30. Bb1 {+3.27/17 0.25s} Rg8 {-2.50/25 60s}
31. Bxh7 {+3.51/15 0.25s} Rh8 {-2.82/26 60s} 32. c5 {+3.71/14 0.25s}
Ne8 {-3.63/26 60s} 33. g5 {+3.89/15 0.25s} Nc6 {-3.51/25 60s}
34. Rdh2 {+4.38/15 0.25s} e4 {-5.25/24 60s} 35. Bxe4 {+4.65/18 0.25s}
Rd2+ {-5.13/29 60s} 36. Rxd2 {+4.72/14 0.25s} Rxh5 {-5.57/30 60s}
37. Nf3 {+4.83/18 0.25s} Nxb4 {-5.49/29 60s} 38. Rd4 {+4.89/16 0.25s}
a5 {-5.37/30 60s} 39. a3 {+5.11/16 0.25s} Na6 {-6.22/29 60s}
40. Rxa4 {+4.99/16 0.25s} Nxc5 {-6.02/26 60s} 41. Rc4 {+5.04/17 0.25s}
Nxe4 {-7.79/25 60s} 42. Rxe4 {+5.11/17 0.25s}
Rh3 {-8.12/25 60s, White wins by adjudication} 1-0

Only three inaccuracies according to chess.com and they were all from Stockfish 1. The inaccuracies were 16...Qxc5, 20...Rc8, and 30...Rg8. So I'm still thinking there's a limit to how strong an engine can get if you give it enough time and this makes logical sense to me. If you have a flawed system for deciding moves then there will be instances in which infinite time will not be enough for it to find the best moves.

This is clearly not the conclusion and my guess is that old stockfish needs more time in order to draw against stockfish17.1

I believe 6...a6 was bad and I believe stockfish1.9.1 can suggest a better move at longer time control.

[Uri Blass]

My stockfish suggested after more than 3 hours Bxg5 and I stopped it.
I think h6 it suggested earlier is also better than a6
[d]rnbqk2r/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR b KQkq h3 0 6


Stockfish-191-64-ja:
1 00:00 1k 233k +0.20 O-O
2 00:00 1k 213k -0.16 O-O Ng1-f3
2 00:00 1k 227k +0.04 Be7xg5 h4xg5 O-O
3 00:00 2k 265k -0.60 Be7xg5 h4xg5 O-O Qd1-h5
3 00:00 2k 255k +0.40 O-O Ng1-f3 Nb8-c6
4 00:00 3k 335k +0.20 O-O Bf1-d3 h7-h6 Bg5-f4 Be7xh4
5 00:00 4k 379k -0.16 O-O Bf1-d3 h7-h6 Bg5xe7 Qd8xe7 Ng1-f3
5 00:00 5k 425k -0.08 Be7xg5 h4xg5 Nb8-c6 Ng1-f3 O-O Qd1-d3
5 00:00 6k 458k +0.36 Nb8-c6 Ng1-f3 O-O Bf1-d3 f7-f6
6 00:00 8k 492k +0.36 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 Bb5xc6 b7xc6
7 00:00 11k 516k +0.36 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 Bb5xc6 b7xc6
8- 00:00 13k 529k +0.28 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 e5xf6 Nd7xf6 O-O
8- 00:00 25k 573k +0.20 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 e5xf6 Nd7xf6 O-O
8 00:00 30k 604k +0.20 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 e5xf6 g7xf6 Bg5-h6
9- 00:00 35k 643k +0.04 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 e5xf6 g7xf6 Bg5-h6
9- 00:00 55k 728k -0.12 Nb8-c6 Ng1-f3 O-O Bf1-b5 f7-f6 e5xf6 g7xf6 Bg5-h6
9 00:00 96k 919k -0.04 O-O Qd1-g4 f7-f5 Bg5xe7 Qd8xe7 Qg4-g5 Qe7xg5 h4xg5 c7-c5 g5-g6 h7xg6
10+ 00:00 139k 992k +0.28 O-O Qd1-g4 f7-f5 Bg5xe7 Qd8xe7 Qg4-g5 Qe7xg5 h4xg5 c7-c5 g5-g6 h7xg6
10 00:00 152k 1,035k +0.32 O-O Qd1-g4 f7-f5 Bg5xe7 Qd8xe7 Qg4-g5 Qe7xg5 h4xg5 c7-c5 d4xc5 Nd7xc5 Ng1-f3 Nb8-c6 O-O-O Bc8-d7
11- 00:00 240k 1,149k -0.16 O-O Qd1-g4 f7-f5 Bg5xe7 Qd8xe7 Qg4-g5 Qe7xg5 h4xg5 c7-c5 Nc3-b5 Nb8-c6 Nb5-c7 Nc6xd4 O-O-O
11 00:00 348k 1,345k +0.04 c7-c5 Bg5xe7 Qd8xe7 Nc3-b5 Ke8-d8 Ng1-f3 Nb8-c6 c2-c3 c5xd4 c3xd4 f7-f6 e5xf6 Nd7xf6
12 00:00 1,276k 2,583k -0.08 c7-c5 Bg5xe7 Qd8xe7 Nc3-b5 Ke8-d8 c2-c3 c5xd4 c3xd4 Nb8-c6 f2-f4 f7-f6 Ng1-f3 Qe7-b4+ Qd1-d2 f6xe5 f4xe5 Qb4xd2+ Ke1xd2 a7-a6 Nb5-d6
13 00:00 2,397k 3,333k -0.20 c7-c5 Bg5xe7 Ke8xe7 Qd1-h5 h7-h6 d4xc5 Nb8-c6 O-O-O Nd7xe5 Qh5-e2 Ke7-f8 Ng1-f3 Ne5xf3 Qe2xf3 Bc8-d7
13+ 00:00 2,844k 3,604k +0.20 O-O Qd1-g4 Rf8-e8 Bg5-h6 Be7-f8 O-O-O c7-c5 Ng1-f3 c5xd4 Rd1xd4 Nb8-c6
13 00:00 2,962k 3,612k -0.12 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Be7xg5 Qg4xg5 Qd8-a5 Qg5-e3 Nc6-b4 Ke1-d2
14+ 00:01 3,708k 3,411k 0.00 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Qd8-a5 Bg5xe7 Re8xe7 b2-b4 Qa5-a3
14 00:01 3,754k 3,403k -0.04 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Qd8-a5 Bg5xe7 Re8xe7 Bf1-b5 a7-a6 Bb5xd7 Bc8xd7 O-O-O Nb8-c6 Nc3-a4 Nc6xe5 Nf3xe5 Bd7xa4
15 00:01 4,548k 3,674k -0.08 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Qd8-a5 Bf1-b5 Be7xc5 Bg5-h6 Bc5-f8 O-O-O a7-a6 Bb5-d3 Nb8-c6 Nf3-g5 g7xh6 Ng5xe6+ Kg8-h8
16+ 00:01 5,168k 3,842k 0.00 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Qd8-a5 Bf1-b5 Be7xc5 Bg5-h6 Bc5-f8 O-O-O a7-a6 Bb5-d3 Nb8-c6 Nf3-g5 Nd7xe5 Bd3xh7+ Kg8-h8
16+ 00:01 5,637k 4,047k +0.08 O-O Ng1-f3 c7-c5 Bg5xe7 Qd8xe7
16 00:01 8,002k 4,900k -0.04 O-O Qd1-g4 Kg8-h8 Bg5xe7 Qd8xe7 O-O-O c7-c5 Bf1-b5 a7-a6 Bb5xd7 Bc8xd7 Ng1-f3 c5xd4 Qg4xd4 Nb8-c6 Qd4-b6 Qe7-b4 Qb6xb4 Nc6xb4
17+ 00:02 10,956k 5,440k +0.04 O-O Qd1-g4 Kg8-h8 Bg5xe7 Qd8xe7 O-O-O c7-c5 Bf1-b5 f7-f6 Ng1-f3 c5xd4 e5xf6 Nd7xf6 Qg4xd4 a7-a6
17+ 00:02 11,788k 5,613k +0.12 O-O Ng1-f3 c7-c5 Bg5xe7 Qd8xe7
17 00:02 13,004k 5,884k +0.04 O-O Qd1-g4 Kg8-h8 Bg5xe7 Qd8xe7 O-O-O c7-c5 Bf1-b5 f7-f6 Ng1-f3 c5xd4 Qg4xd4 f6xe5 Nf3xe5 Nd7xe5 Qd4xe5 Qe7-f7 Kc1-b1 Qf7xf2
18+ 00:02 16,871k 6,499k +0.16 O-O Qd1-g4 Kg8-h8 Bg5xe7 Qd8xe7 O-O-O c7-c5 Bf1-b5 f7-f6 Ng1-f3 c5xd4 Qg4xd4 f6xe5 Nf3xe5 Nd7xe5 Qd4xe5 Nb8-c6 Bb5xc6 b7xc6 Rd1-d2 Bc8-a6
18- 00:02 19,548k 6,720k -0.08 O-O Qd1-g4 Kg8-h8 Ng1-f3 c7-c5 Bf1-d3 c5xd4 Bd3xh7 g7-g6 Bh7xg6 f7xg6 Qg4xe6 d4xc3 h4-h5
18 00:03 25,680k 7,169k +0.04 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Nd7xc5 O-O-O Bc8-d7 Qg4-h5 h7-h6 Bg5xe7 Qd8xe7 Bb5xc6 b7xc6 b2-b4 Nc5-a6 a2-a3
19- 00:03 28,488k 7,357k -0.04 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Nd7xc5 O-O-O Bc8-d7 Kc1-b1 Qd8-b6 Bg5-h6 Be7-f8 Bb5-e2 Nc6-b4 Bh6-e3 g7-g6 h4-h5
19 00:05 41,648k 7,983k -0.08 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Nc6xe5 Nf3xe5 Nd7xe5 Qg4-g3 Ne5-c6 O-O-O Bc8-d7 Kc1-b1 Qd8-a5 Bg5xe7 Re8xe7 Qg3-d6 Ra8-e8 Bb5xc6 Bd7xc6
20 00:06 52,423k 8,325k -0.04 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Nc6xe5 Nf3xe5 Nd7xe5 Qg4-g3 Ne5-c6 O-O-O Bc8-d7 Kc1-b1 a7-a6 Bb5xc6 b7xc6 Bg5xe7 Qd8xe7 Qg3-c7 Ra8-b8 Rh1-e1 e6-e5
21- 00:09 88,301k 8,956k -0.16 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Nc6xe5 Nf3xe5 Nd7xe5 Qg4-g3 Ne5-c6 O-O-O Bc8-d7 Bg5xe7 Nc6xe7 Bb5xd7 Qd8xd7 Nc3-e4
21+ 00:18 177,531k 9,563k +0.08 a7-a6 Qd1-g4 Be7xg5 Qg4xg5 O-O Ng1-f3 c7-c5 Bf1-d3 h7-h6 Qg5xd8 Rf8xd8 d4xc5 Nd7xc5 O-O-O Nb8-c6 Nc3-e2 Bc8-d7
21+ 00:20 198,301k 9,656k +0.20 a7-a6 Qd1-g4 Be7xg5 h4xg5 c7-c5 d4xc5 Nd7xe5 Qg4-g3 Nb8-c6 O-O-O Qd8-a5 Qg3-e3 Qa5-b4 Ng1-f3 Ne5-g4
21 00:22 212,482k 9,650k 0.00 a7-a6 Qd1-g4 Be7xg5 h4xg5 c7-c5 d4xc5 Nd7xe5 Qg4-g3 Nb8-c6 Ng1-f3 Ne5xf3+ g2xf3 Qd8-e7 g5-g6 h7-h5 O-O-O f7-f5 Nc3-a4 h5-h4 Qg3-h2 Bc8-d7 Qh2-c7 Bd7-c8 Qc7-h2
22- 00:23 226,316k 9,673k -0.08 a7-a6 Qd1-g4 Be7xg5 h4xg5 c7-c5 d4xc5 Nd7xe5 Qg4-g3 Nb8-c6 O-O-O Qd8-a5 Ng1-f3 Ne5xf3 g2xf3 Qa5xc5 g5-g6 f7xg6 Rh1xh7 Rh8xh7 Qg3xg6+ Ke8-f8 Qg6xh7 Qc5xf2 Qh7-h8+ Kf8-f7 Bf1-d3 Qf2-e3+ Kc1-b1 Qe3xf3 Qh8-h7
22- 00:24 238,352k 9,630k -0.16 a7-a6 Qd1-g4 Be7xg5 h4xg5 c7-c5 d4xc5 Nd7xe5 Qg4-g3 Nb8-c6 O-O-O Qd8-e7 f2-f4 Ne5-d7 g5-g6 f7xg6 Bf1-d3 g6-g5 f4xg5 Nc6-b4 Bd3xh7 Nd7-f8 g5-g6 Qe7xc5 Ng1-f3
22 00:27 260,472k 9,624k -0.28 a7-a6 Qd1-g4 Be7xg5 h4xg5 c7-c5 d4xc5 Nd7xe5 Qg4-g3 Nb8-c6 O-O-O Qd8-a5 Ng1-f3 Ne5xf3 g2xf3 d5-d4 Nc3-e4 Qa5xa2 Qg3-c7 Qa2-a1+ Kc1-d2 Qa1-a5+ Qc7xa5 Nc6xa5 Bf1-d3 Ke8-e7 Ne4-d6 h7-h6 g5xh6 Rh8xh6 Rh1xh6 g7xh6 Rd1-h1 Bc8-d7 Rh1xh6
22 00:30 299,904k 9,711k 0.00 Be7xg5 h4xg5 Qd8xg5 Ng1-f3 Qg5-e7 Qd1-d2 a7-a6 Bf1-d3 c7-c5 d4xc5 Nb8-c6 Qd2-f4 h7-h6 Qf4-g3 Ke8-f8 O-O-O Nd7xc5 Kc1-b1 Bc8-d7 Nc3-e2 Nc5xd3 Rd1xd3 Nc6-b4 Rd3-c3 Bd7-a4 Ne2-f4
23- 00:34 340,641k 9,865k -0.08 Be7xg5 h4xg5 Qd8xg5 Qd1-d3 h7-h6 Nc3-b5 Qg5-d8 Qd3-g3 g7-g6 O-O-O a7-a6 Nb5-c3 c7-c5 d4xc5 Nb8-c6 Ng1-f3 Nd7xc5 Kc1-b1 Qd8-b6 Qg3-f4 Qb6-b4 Qf4-e3
23+ 00:39 397,474k 9,949k +0.08 Nb8-c6 Bg5xe7 Nc6xe7 Bf1-d3 c7-c5 Ng1-f3 c5xd4 Nf3xd4 O-O O-O Qd8-b6 Qd1-h5 h7-h6 Nd4-b3 Ne7-c6
23 00:46 468,681k 10,061k -0.12 Be7xg5 h4xg5 Qd8xg5 Qd1-d3 h7-h6 Nc3-b5 Qg5-d8 Qd3-g3 g7-g6 O-O-O a7-a6 Nb5-c3 c7-c5 d4xc5 Nb8-c6 Ng1-f3 Nd7xc5 Kc1-b1 h6-h5 Bf1-e2 Bc8-d7 Qg3-f4 O-O
23 00:47 477,385k 10,054k -0.08 Nb8-c6 Qd1-d2 f7-f6 e5xf6 Nd7xf6 O-O-O Be7-d6 Kc1-b1 O-O Ng1-f3 h7-h6 Bg5-e3 Nf6-g4 Bf1-d3 Ng4xe3 Qd2xe3 Qd8-f6 Bd3-b5 Bd6-f4 Qe3-e2 Bc8-d7 Rh1-e1 Ra8-e8 Bb5xc6 Bd7xc6
24+ 00:55 556,608k 10,066k 0.00 Nb8-c6 Qd1-d2 f7-f6 e5xf6 Nd7xf6 O-O-O O-O Ng1-f3 Be7-d6 Kc1-b1 h7-h6 Bg5-e3 Nf6-g4 Bf1-d3 Ng4xe3 Qd2xe3 Qd8-f6 Bd3-b5 Nc6-e7 a2-a3 Ne7-f5 Qe3-e2 c7-c6
24 00:55 559,430k 10,062k 0.00 Nb8-c6 Qd1-d2 f7-f6 e5xf6 Nd7xf6 O-O-O O-O Ng1-f3 Be7-d6 Kc1-b1 h7-h6 Bg5-e3 Nf6-g4 Bf1-d3 Bc8-d7 Nc3-b5 Ng4xe3 f2xe3 Bd6-e7 Nb5-c3 Be7-d6 Nc3-b5
25- 01:06 671,280k 10,032k -0.12 Nb8-c6 Qd1-d2 f7-f6 e5xf6 Nd7xf6 O-O-O O-O Kc1-b1 Qd8-d6 Ng1-f3 Bc8-d7 Bf1-d3 Qd6-b4 Qd2-e3 Be7-d6 Bg5xf6 Rf8xf6 Nf3-g5
25 01:19 806,289k 10,105k +0.08 Be7xg5 h4xg5 Qd8xg5 Qd1-d3 h7-h6 Nc3-b5 Qg5-d8 Qd3-g3 g7-g6 O-O-O a7-a6 Nb5-a3 c7-c5 c2-c3 c5xd4 c3xd4 Nd7-b6 Kc1-b1 Bc8-d7 Bf1-e2 Nb8-c6 Na3-c2 h6-h5 Ng1-h3 Nb6-c4 Be2xc4 d5xc4 Qg3-c3 b7-b5 d4-d5 e6xd5 Rd1xd5
26- 01:41 1,038,536k 10,196k -0.04 Be7xg5 h4xg5 Qd8xg5 Ng1-f3 Qg5-e7 Qd1-d2 a7-a6 O-O-O c7-c5 Qd2-f4 Nb8-c6 Qf4-g3 c5xd4 Nf3xd4 Nc6xd4 Rd1xd4 f7-f6 e5xf6 Qe7xf6 Rd4-f4
26 02:03 1,251,790k 10,129k 0.00 Be7xg5 h4xg5 Qd8xg5 Ng1-f3 Qg5-e7 Qd1-d2 a7-a6 Qd2-f4 c7-c5 Qf4-g3 Ke8-f8 d4xc5 Nb8-c6 O-O-O h7-h5 Nc3-a4 Nd7xc5 Na4xc5 Qe7xc5 Kc1-b1 Bc8-d7 c2-c3 Qc5-e7 Bf1-d3 h5-h4 Qg3-g4 Qe7-c5 Rh1xh4 Rh8xh4 Qg4xh4
27- 02:36 1,595,293k 10,180k -0.12 Be7xg5 h4xg5 Qd8xg5 Ng1-h3 Qg5-h6 Nc3-b5 Nb8-a6 g2-g3 f7-f6 Bf1-g2 f6xe5 Nh3-f4 Qh6-f6 Qd1-h5+ Ke8-d8 Nf4-g6
27 02:53 1,775,076k 10,213k 0.00 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Bf1-b5 Nc6xe5 Nf3xe5 Nd7xe5 Qg4-g3 Ne5-c6 O-O-O Bc8-d7 Bg5-h6 Be7-f6 Bh6-g5 Bf6-e7
28- 03:34 2,199,223k 10,244k -0.08 O-O Qd1-g4 Rf8-e8 Ng1-f3 c7-c5 d4xc5 Nb8-c6 Qg4-g3 Nd7xc5 O-O-O Qd8-c7 Bf1-b5 Bc8-d7
28- 03:48 2,334,129k 10,229k -0.16 O-O Qd1-g4 Kg8-h8 Qg4-h5 c7-c5 Ng1-f3 c5xd4 Bf1-d3 g7-g6 Qh5-h6 d4xc3 h4-h5 c3xb2 h5xg6 b2xa1Q+ Ke1-e2 Qa1-d1+ Ke2xd1
28 05:29 3,393,323k 10,302k -0.04 Nb8-c6 Qd1-d2 O-O O-O-O f7-f6 e5xf6 Nd7xf6 Kc1-b1 Bc8-d7 Ng1-f3 Be7-d6 h4-h5 h7-h6 Bg5-h4 Qd8-e8 Bh4xf6 Rf8xf6 Bf1-d3 Qe8-f8 Bd3-b5 Bd6-f4 Qd2-e1 Qf8-f7 Rh1-h4 a7-a6
29- 05:40 3,506,014k 10,306k -0.12 Nb8-c6 Qd1-d2 O-O O-O-O f7-f6 e5xf6 Nd7xf6 Kc1-b1 Bc8-d7 Ng1-f3 Be7-d6 Qd2-e1 a7-a6 g2-g3 h7-h6 Bf1-h3 h6xg5 Bh3xe6+
29+ 06:55 4,272,610k 10,279k +0.04 h7-h6 Qd1-h5 c7-c5 d4xc5 Nb8-c6 O-O-O Nd7xe5 Ng1-f3 Ne5xf3 g2xf3 g7-g6
29+ 08:20 5,166,927k 10,321k +0.12 h7-h6 Bg5xe7 Qd8xe7 Qd1-d2 O-O f2-f4 c7-c5 Ng1-f3 Nb8-c6 O-O-O a7-a6 Kc1-b1 b7-b5 g2-g3 Bc8-b7 Bf1-e2 c5xd4 Nf3xd4 Nd7-c5 Be2-f3 Ra8-c8 Bf3xd5 e6xd5 Nc3xd5 Qe7-d7
29 09:09 5,690,410k 10,348k 0.00 h7-h6 Bg5-e3 c7-c5 Qd1-g4 Ke8-f8 Ng1-f3 Nb8-c6 O-O-O c5xd4 Be3xd4 Nc6xd4 Qg4xd4 Kf8-g8 Qd4-f4 a7-a6 Nf3-d4 Qd8-c7 Rd1-e1 b7-b5 Kc1-b1 Bc8-b7 Bf1-d3 b5-b4 Nc3-a4 Be7-f6
30 09:53 6,128,524k 10,329k 0.00 h7-h6 Bg5-e3 c7-c5 Qd1-g4 Ke8-f8 Ng1-f3 Nb8-c6 Qg4-f4 c5xd4 Be3xd4 f7-f6 O-O-O Qd8-c7 Nc3-b5 Qc7-b8 Nb5-d6 Be7xd6 e5xd6 e6-e5
31 11:53 7,373,670k 10,327k 0.00 h7-h6 Bg5-e3 c7-c5 Qd1-g4 Ke8-f8 f2-f4 c5xd4 Be3xd4 Nb8-c6 Ng1-f3 Be7-b4 Rh1-h3 Nc6xd4 Nf3xd4 Nd7-c5 O-O-O Bb4xc3 Rh3xc3 Nc5-e4 Rc3-f3 h6-h5 Qg4-h3 Qd8-a5 Rf3-a3 Qa5-d8 Ra3-f3
32 14:58 9,361,638k 10,424k 0.00 h7-h6 Bg5-f4 c7-c5 Qd1-g4 Ke8-f8 O-O-O c5xd4 Nc3-b5 Qd8-a5 Kc1-b1 Nb8-c6 Ng1-f3 Nc6-b4 a2-a3 d4-d3 a3xb4 d3xc2+ Kb1xc2 Qa5-a4+ Kc2-c1 Qa4-a1+ Kc1-c2 Qa1-a4+
33+ 17:00 10,687,570k 10,476k +0.08 h7-h6 Bg5-f4 c7-c5 Qd1-g4 Ke8-f8 d4xc5 Be7xc5 Qg4-g3 Qd8-b6
33 22:38 14,327,778k 10,548k 0.00 h7-h6 Bg5xe7 Qd8xe7 Qd1-d2 O-O f2-f4 c7-c5 Ng1-f3 Nb8-c6 O-O-O a7-a6 Kc1-b1 b7-b5 g2-g4 Bc8-b7 g4-g5 h6-h5 Nc3-e2 c5xd4 Ne2xd4 Nd7-c5 Qd2-e3 Nc5-e4 g5-g6 f7xg6 Bf1-h3 Nc6xd4 Nf3xd4 Bb7-c8 Bh3-g2
34+ 26:14 16,722,593k 10,619k +0.08 h7-h6 Bg5xe7 Qd8xe7 Qd1-d2 O-O f2-f4 c7-c5 Ng1-f3 Nb8-c6 O-O-O a7-a6 Kc1-b1
34+ 30:32 19,570,812k 10,681k +0.16 h7-h6 Qd1-h5 c7-c5 Bg5xe7 Ke8xe7 O-O-O c5xd4 Nc3-b5 g7-g6 Qh5-e2 Qd8-a5 Kc1-b1 Nb8-c6 Ng1-f3 d4-d3
34 42:06 27,351,570k 10,824k +0.04 h7-h6 Qd1-h5 c7-c5 Bg5xe7 Ke8xe7 O-O-O c5xd4 Nc3-b5 g7-g6 Qh5-e2 Qd8-a5 a2-a3 d4-d3 Qe2xd3 a7-a6 Nb5-c3 Nd7xe5 Qd3-g3 Nb8-d7 f2-f4 Ne5-c6 h4-h5 Rh8-g8 h5xg6 Rg8xg6 Qg3-h4+ Ke7-f8 f4-f5 Rg6-f6 Ng1-f3 Rf6xf5 Qh4xh6+ Kf8-e8 Qh6-g7
35+ 51:43 33,882,103k 10,918k +0.12 h7-h6 Qd1-h5 c7-c5 Bg5xe7 Ke8xe7 O-O-O c5xd4 Nc3-b5 g7-g6
35- 1:09:37 45,751,274k 10,953k -0.04 h7-h6 Bg5xe7 Qd8xe7 f2-f4 O-O Ng1-f3 c7-c5 Qd1-d2 Nb8-c6 O-O-O a7-a6 g2-g4 b7-b5 Nc3-e2 Nd7-b6 d4xc5 Qe7xc5 Ne2-d4 Nc6xd4 Nf3xd4 Bc8-d7 Kc1-b1 Rf8-c8 g4-g5 h6-h5 g5-g6 f7xg6 Qd2-g2 Qc5-b4 a2-a3 Qb4-e7 Qg2xg6 Nb6-a4 Bf1-h3
35 1:22:48 54,165,637k 10,901k 0.00 h7-h6 Bg5xe7 Qd8xe7 f2-f4 O-O Ng1-f3 c7-c5 Qd1-d2 Nb8-c6 O-O-O a7-a6 g2-g4 b7-b5 Nc3-e2 Ra8-b8 Kc1-b1 Nd7-b6 Qd2-e3 Nb6-c4 Qe3-g1 c5xd4 Ne2xd4 Qe7-b4 Nd4-b3 Qb4-a4 Nb3-c5 Qa4-b4 Nc5-b3
36 1:35:31 62,198,347k 10,852k 0.00 h7-h6 Bg5xe7 Qd8xe7 f2-f4 O-O Ng1-f3 c7-c5 Qd1-d2 Nb8-c6 O-O-O a7-a6 g2-g4 b7-b5 Nc3-e2 Ra8-b8 Kc1-b1 Nd7-b6 d4xc5 Nb6-c4 Qd2-e1 Qe7xc5 Ne2-d4 Bc8-d7 Nd4xc6 Qc5xc6 Nf3-d4 Qc6-b6 g4-g5 h6-h5 Bf1-e2 g7-g6 Rh1-h3 Qb6-c5 Nd4-b3 Qc5-b6 Nb3-d4
37- 2:04:25 80,801,878k 10,823k -0.08 h7-h6 Bg5xe7 Qd8xe7 f2-f4 O-O
37 3:00:22 117,578,147k 10,864k 0.00 Be7xg5 h4xg5 Qd8xg5 Rh1-h3 Nb8-c6 Rh3-g3 Qg5-h6 Ng1-f3 a7-a6 Rg3-h3 Qh6-g6 Rh3-g3 Qg6-h6