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

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Uri Blass
Posts: 10959
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

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

Post by Uri Blass »

It seems stockfish1.9.1 prefers 19.Nfd5 and not 19.Rd1 with 10000M nodes
I am going to test it if it is a random result or happens always after 10000M nodes.

FEN: 2br3r/1k4pp/ppn2p2/2p5/4PN2/2N2P2/1PPR2PP/R5K1 w - - 2 19

Stockfish-191-64-ja:
1 00:00 288 288k +1.29 Nc3-d5
2 00:00 411 411k +0.96 Nc3-d5 Bc8-d7
3 00:00 765 383k +0.88 Nc3-d5 Bc8-d7 c2-c3
4 00:00 1k 413k +0.68 Nc3-d5 Bc8-d7 c2-c3 Nc6-e5
4 00:00 2k 415k +0.84 Rd2xd8 Rh8xd8 Nc3-d5 Nc6-b4 c2-c3 Nb4xd5 Nf4xd5
5 00:00 2k 572k +0.56 Rd2xd8 Rh8xd8 Nc3-d5 Bc8-d7 Kg1-f2 Nc6-d4
5 00:00 3k 532k +0.76 Nc3-d5 Bc8-d7 c2-c3 Nc6-e5 b2-b3
6 00:00 5k 581k +0.76 Nc3-d5 Bc8-d7 c2-c3 f6-f5 b2-b3 f5xe4 f3xe4
7- 00:00 7k 578k +0.68 Nc3-d5 Bc8-d7 c2-c3 f6-f5 b2-b3 Nc6-e5
7- 00:00 9k 585k +0.60 Nc3-d5 Bc8-d7 c2-c3 f6-f5 b2-b3 Nc6-e5
7 00:00 14k 653k +0.56 Nc3-d5 Bc8-d7 Nf4-h5 Rh8-g8 c2-c3 Nc6-e5 Nd5-e7
8 00:00 54k 1,168k +0.44 Nc3-d5 Bc8-d7 Ra1-d1 Nc6-d4 b2-b4 Bd7-a4 b4xc5 b6xc5 Rd1-b1+ Ba4-b5
9 00:00 65k 1,245k +0.44 Nc3-d5 Bc8-d7 Ra1-d1 Nc6-d4 b2-b4 Bd7-a4 b4xc5 b6xc5 Rd1-b1+ Ba4-b5
10+ 00:00 90k 1,274k +0.52 Nc3-d5 Bc8-d7 Ra1-d1 Nc6-d4 b2-b4 Bd7-a4 b4xc5 b6xc5 Rd1-b1+ Ba4-b5 Nf4-d3
10- 00:00 118k 1,343k +0.36 Nc3-d5 f6-f5 Ra1-a3 Rh8-e8 Ra3-b3 Nc6-b4
10- 00:00 195k 1,571k +0.28 Nc3-d5 f6-f5 Ra1-a3 Rh8-e8 Ra3-b3 Nc6-b4
10+ 00:00 254k 1,715k +0.60 Ra1-d1 Rd8xd2 Rd1xd2 Nc6-d4 Nc3-d5 Rh8-d8 Kg1-f2 f6-f5 c2-c3 Nd4-b3 Rd2-e2
10- 00:00 316k 1,873k +0.12 Nc3-d5 f6-f5 Ra1-a3 Rh8-e8 Ra3-b3 Nc6-b4
10 00:00 327k 1,880k +0.28 Rd2xd8 Rh8xd8 Nc3-d5 Nc6-d4 c2-c3 Nd4-e6 Nf4-e2 Bc8-d7 Kg1-f2 Bd7-b5 Ne2-g3 a6-a5
11- 00:00 446k 2,065k +0.12 Rd2xd8 Rh8xd8 Nc3-d5 f6-f5 Kg1-f2 f5xe4 f3xe4 g7-g5
11+ 00:00 504k 2,127k +0.44 Ra1-d1 Rd8xd2 Rd1xd2 Rh8-f8 Rd2-d6 f6-f5 Nf4-d5 f5xe4 Nc3xe4 Bc8-f5 g2-g4 Bf5xe4 Rd6-d7+
11+ 00:00 523k 2,152k +0.60 Ra1-d1 Rd8xd2 Rd1xd2 Rh8-f8 Rd2-d6 f6-f5 Nf4-d5 f5xe4 Nc3xe4 Bc8-f5 g2-g4 Bf5xe4 Rd6-d7+
11 00:00 545k 2,120k +0.52 Ra1-d1 Rd8xd2 Rd1xd2 Rh8-f8 Rd2-d6 f6-f5 Nf4-d5 f5xe4 Nc3xe4 Rf8-e8 c2-c4 Bc8-e6 Kg1-f2 Be6-f5 Kf2-e3
12 00:00 889k 2,489k +0.28 Ra1-d1 Rd8-d4 Kg1-f2 f6-f5 b2-b3 Rh8-e8 Kf2-e3 f5xe4 Nc3xe4 Rd4xd2 Ke3xd2 Re8-d8+ Kd2-e2 Nc6-d4+ Ke2-f2
13 00:00 2,500k 4,160k +0.40 Ra1-d1 Rd8-d4 Nc3-d5 Rd4xd2 Rd1xd2 f6-f5 Nf4-h5 f5xe4 f3xe4 Rh8-e8 Rd2-f2 Re8xe4 Rf2-f7+ Kb7-b8 Nh5xg7 Re4-e2 Nd5xb6 Re2xc2
14 00:00 3,152k 4,535k +0.56 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Rd2-d6 f5xe4 Nc3xe4 Rh8-f8 Nf4-d5 Rf8-e8 c2-c4 Bc8-e6 Kg1-f2 Be6xd5 Rd6-d7+ Kb7-c8 Rd7xd5
15 00:00 3,915k 5,013k +0.48 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Rd2-d6 f5xe4 Nc3xe4 Bc8-f5 Nf4-d5 Rh8-e8 Kg1-f2 Bf5-e6 Kf2-e3 Be6xd5 Rd6xd5 Kb7-c7 Rd5-d1 Nc6-d4 c2-c3 Nd4-f5+ Ke3-f4
16- 00:00 5,358k 5,895k +0.32 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Rd2-d6 Rh8-e8 Kg1-f2 Nc6-e5 b2-b3 f5xe4 Nc3xe4 Ne5-g4+ Kf2-e2 Bc8-f5 Nf4-d5 Bf5xe4 Rd6xb6+ Kb7-c8 f3xe4 Re8xe4+ Ke2-f3 Re4-d4 Rb6-c6+ Kc8-d7 Rc6xc5 Kd7-d6
16 00:01 6,395k 6,125k +0.32 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Nc3-a4 f5xe4 f3xe4 Nc6-e5 Nf4-d5 Ne5-d7 Nd5-e7 Rh8-e8 Ne7-f5 Re8-e6 Na4-c3 Nd7-f6 Kg1-f2 g7-g6 Nf5-d6+ Kb7-c7 Nd6xc8 Kc7xc8
17+ 00:01 12,029k 8,189k +0.52 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Nf4-h5 g7-g6 Nh5-f6 Nc6-d4 Kg1-f2 f5xe4 f3xe4 Rh8-f8 Nc3-d5 Bc8-e6 Kf2-e3 h7-h5 c2-c3 Nd4-b3 Rd2-d1
17 00:01 13,184k 8,345k +0.52 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Nf4-h5 Rh8-g8 Kg1-f2 h7-h6 Kf2-e3 f5xe4 Nc3xe4 Nc6-d4 c2-c3 Nd4-f5+ Ke3-f2 Bc8-e6 Nh5-f4 Be6-c4 Rd2-d7+ Kb7-c6
18 00:01 16,850k 8,915k +0.32 Ra1-d1 Rd8-d4 Nc3-d5 f6-f5 Rd2xd4 c5xd4 Rd1-f1 Bc8-d7 Nf4-d3 Rh8-f8 h2-h3 Nc6-a5 Nd3-e5 Bd7-b5 Rf1-d1 Rf8-c8 b2-b4 Na5-c6 Ne5xc6 Rc8xc6
19 00:02 20,967k 9,306k +0.32 Ra1-d1 Rd8-d4 Nc3-d5 f6-f5 Rd2xd4 c5xd4 Rd1-f1 Bc8-d7 Nf4-d3 Rh8-f8 h2-h3 Nc6-a5 Rf1-e1 Na5-c4 Kg1-f2 Bd7-c6 Nd3-b4 Nc4xb2 e4xf5 Bc6-d7 Re1-e7 Nb2-d1+ Kf2-e2
20+ 00:03 32,831k 10,413k +0.44 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 Nh5-g3 Rg8-f8 e4xf5 Bc8xf5 Rd2xd4 Nc6xd4 Ng3xf5 Rf8xf5 Nc3-e4 Nd4xc2 Ne4-d6+
20 00:03 33,892k 10,406k +0.36 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 Nh5-g3 Rg8-f8 e4xf5 Rd4xd2+ Rd1xd2 Nc6-d4 Nc3-e4 Nd4xf5 Ng3-e2 Bc8-e6 Ne4-g5 Be6-g8 g2-g4 Nf5-h6 Kf2-e3 Kb7-c6 Ng5-e4
21 00:03 38,922k 10,551k +0.40 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 h2-h3 Rd4-b4 b2-b3 Rb4-d4 Kf2-e3 f5xe4 f3xe4 Nc6-b4 Rd2-f2 Rd4xd1 Nc3xd1 Bc8-e6 Nd1-c3 g7-g5 Nh5-f6 Rg8-f8 Nc3-d5 h7-h6
22- 00:04 42,903k 10,664k +0.32 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 h2-h3 Rd4-b4 b2-b3 Rb4-d4 Kf2-e3 f5xe4 f3xe4 Nc6-b4 Rd2-f2 Rd4xd1 Nc3xd1 Bc8-e6 Nd1-c3 g7-g5 Nh5-f6 Rg8-f8 Nc3-d5 Be6xd5 e4xd5 Rf8xf6
22 00:05 59,592k 11,079k +0.32 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 Nh5-g3 Rg8-f8 e4xf5 Bc8xf5 Ng3xf5 Rf8xf5 Rd2xd4 c5xd4 Nc3-e4 Kb7-c7 b2-b3 Rf5-e5 Kf2-g3 Re5-f5 Rd1-a1 a6-a5 Ra1-d1 Kc7-d7 Kg3-g4
23 00:07 91,713k 11,772k +0.28 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Kg1-f2 Kb7-c6 Nh5-f4 Rg8-e8 Nf4xe6 Nd4xe6 Nc3-d5 a6-a5 Rd2-d1 a5-a4 Kf2-e3 b6-b5 h2-h4 Ne6-d4 Ke3-d3 Re8-d8 c2-c3 Nd4-e6
23 00:09 108,668k 11,908k +0.32 Nf4-d5 Bc8-e6 Ra1-d1 Rh8-e8 Kg1-f2 Nc6-e5 Nd5-e3 Rd8xd2+ Rd1xd2 Kb7-c6 Rd2-d1 Ne5-c4 Ne3xc4 Be6xc4 Kf2-e3 Bc4-f7 Ke3-f4 Bf7-e6 h2-h4 Be6-c4 b2-b3 Bc4-e6 Rd1-a1 a6-a5 Ra1-d1
24- 00:11 143,740k 12,252k +0.24 Nf4-d5 Nc6-b4 Ra1-d1 Nb4xd5 Rd2xd5 Rd8xd5 Nc3xd5 Kb7-c6 Kg1-f2 Rh8-e8 c2-c3 f6-f5
24 00:12 154,715k 12,345k +0.28 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Kg1-f2 Kb7-c6 Nh5-f4 Rg8-e8 Nf4xe6 Nd4xe6 Nc3-d5 a6-a5 Rd2-d1 a5-a4 Kf2-e3 b6-b5 h2-h4 Ne6-d4 Ke3-d3 Re8-d8 c2-c3 Nd4-e6
25 00:13 173,437k 12,408k +0.28 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Kg1-f2 Kb7-c6 Nh5-f4 Rg8-e8 Nf4xe6 Nd4xe6 Nc3-d5 a6-a5 Rd2-d1 b6-b5 h2-h4 a5-a4 h4-h5 h7-h6 Kf2-e3 Ne6-c7 Ke3-f4 Nc7-e6+ Kf4-g4 Re8-d8 g2-g3
26+ 00:16 208,600k 12,512k +0.36 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Nh5-f4 Be6-f7 Kg1-f2 Rg8-f8 Nf4-d5 Kb7-c6 Nd5-e7+ Kc6-d6 Ne7-f5+ Kd6-e5 Nf5xg7 Rf8-g8 Ng7-f5 Nd4xf5 e4xf5 Ke5xf5 Rd2-d6
26 00:20 260,542k 12,719k +0.24 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Nh5-f4 Be6-f7 Kg1-f2 Rg8-f8 g2-g3 Kb7-c6 Nf4-e2 Nd4xe2 Kf2xe2 Rf8-e8 Ke2-e3 Re8-e7 Ke3-f4 Re7-e8 Rd2-d1 a6-a5 Kf4-e3 Bf7-c4 g3-g4 Bc4-f7 h2-h4 Re8-e7 g4-g5 f6-f5 b2-b3 Re7-e8 Nc3-d5 Bf7xd5
27+ 00:22 286,366k 12,748k +0.32 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Nh5-f4 Be6-f7 Kg1-f2 Rg8-f8 h2-h4 Rf8-e8 g2-g4 Kb7-c6 Nc3-d5 Bf7xd5 Nf4xd5
27 00:26 343,426k 12,721k +0.28 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Rd2xd4 Nc6xd4 Rd1-d2 Bc8-e6 Nh5-f4 Be6-f7 Kg1-f2 Rg8-f8 g2-g3 Kb7-c6 Nc3-d5 Rf8-e8 Nd5-e3 g7-g5 Nf4-e2 Nd4xe2 Kf2xe2 Bf7-e6 Rd2-d1 a6-a5 b2-b3 Re8-e7 Rd1-d8 Re7-d7 Rd8xd7 Kc6xd7 Ne3-d5 Be6xd5 e4xd5
28+ 00:47 621,685k 13,189k +0.36 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 h2-h3 Rd4-b4 b2-b3 Rb4-d4 Kf2-e3 Nc6-b4 Nh5-f4 f5xe4 f3xe4 Rg8-e8 Nf4-e2 Rd4xd2 Rd1xd2 Bc8-e6 Ne2-f4 Nb4xc2+ Rd2xc2
28 01:07 901,649k 13,333k +0.24 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Nh5-g3 Rg8-f8 Nc3-e2 Rd4xd2 Rd1xd2 Nc6-e5 Rd2-d1 f6-f5 Ng3xf5 Bc8xf5 e4xf5 Rf8xf5 f3-f4 Ne5-g6 g2-g3 Kb7-c6 Ne2-c3 Rf5-f8 Rd1-e1 Rf8-d8 f4-f5 Ng6-f8 Nc3-e4 Nf8-d7 Re1-d1 Rd8-e8 Ne4-d6
29+ 01:33 1,271,118k 13,553k +0.32 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 h2-h3 Bc8-e6 Nh5-f4 Be6-f7 e4xf5 Rd4xf4 Rd2-d7+
29 01:37 1,326,433k 13,559k +0.28 Ra1-d1 Rd8-d4 Nf4-h5 Rh8-g8 Kg1-f2 f6-f5 h2-h3 Bc8-e6 Nh5-f4 Be6-c8 Kf2-e3 Rg8-d8 Nc3-d5 Rd4xd2 Ke3xd2 g7-g5 Nf4-h5 f5xe4 f3xe4 h7-h6 Kd2-e3 Rd8-f8 Nh5-f6 Bc8-e6 Ke3-e2 Nc6-e5 Rd1-a1 Rf8-d8 b2-b3 Rd8-f8 Ke2-e3 a6-a5 Nf6-h7
30 02:50 2,215,576k 12,990k +0.28 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Kg1-f2 Rh8-f8 Nf4-h5 Rf8-f7 Nh5-g3 Nc6-d4 Ng3-e2 Nd4xe2 Kf2xe2 f5xe4 f3xe4 Rf7-f8 Nc3-d5 Bc8-e6 Ke2-e3 Be6xd5 Rd2xd5 Kb7-c6 Rd5-d2 Rf8-e8 Rd2-f2 Re8-e7 Rf2-f1 a6-a5
31- 03:13 2,539,273k 13,106k +0.20 Ra1-d1 Rd8xd2 Rd1xd2 f6-f5 Kg1-f2 Rh8-f8 Nf4-h5 Rf8-f7 Nh5-g3 Nc6-d4 Ng3-e2 Nd4xe2 Kf2xe2 f5xe4 f3xe4 Rf7-f8 Nc3-d5 Bc8-e6 Ke2-e3
31 04:00 3,178,841k 13,244k +0.28 Nf4-d5 Nc6-b4 Ra1-d1 Nb4xd5 Nc3xd5 Rh8-e8 g2-g4 Bc8-e6 Kg1-f2 Kb7-c6 Kf2-e3 Be6xd5 c2-c4 Re8-e7 Rd2xd5 Rd8xd5 c4xd5+ Kc6-d6 Rd1-a1 a6-a5 Ke3-d3 Re7-b7 h2-h3 Rb7-b8 b2-b3 Rb8-e8 Kd3-c4 Re8-b8 Kc4-b5 g7-g6 h3-h4 Rb8-f8
32 05:47 4,649,890k 13,369k +0.24 Nf4-d5 Nc6-b4 Ra1-d1 Nb4xd5 Nc3xd5 Rh8-e8 g2-g4 Bc8-e6 Kg1-f2 Kb7-c6 Kf2-e3 Be6xd5 c2-c4 Re8-e7 Rd2xd5 Rd8xd5 c4xd5+ Kc6-d6 Rd1-a1 a6-a5 Ke3-d3 Re7-b7 b2-b3 Rb7-b8 h2-h4 g7-g6 Kd3-e3 Rb8-e8 Ke3-f4 h7-h6 Ra1-c1
33+ 06:40 5,367,092k 13,411k +0.32 Nf4-d5 Nc6-b4 Ra1-d1 Bc8-e6 Nd5-f4 Rd8xd2 Rd1xd2 Be6-c4 Rd2-d7+
33 10:45 8,711,839k 13,492k +0.32 Nf4-d5 Bc8-e6 Ra1-d1 Be6xd5 Nc3xd5 Rd8-d7 Kg1-f2 Rh8-d8 Kf2-e3 Nc6-b4 c2-c4 Nb4xd5+ c4xd5 a6-a5 Rd2-d3 Kb7-c7 Rd1-a1 Rd8-a8 Rd3-b3 a5-a4 g2-g3
34 12:26 10,001,316k 13,405k +0.24 Nf4-d5 Bc8-e6 Ra1-d1 Be6xd5 Nc3xd5 Rd8-d7 Kg1-f2 Rh8-d8 Kf2-e3 Nc6-b4 c2-c4 Rd7-d6 Ke3-e2 Nb4-c6 Ke2-d3 Rd6-d7 h2-h4 Rd8-e8 Kd3-c3 a6-a5 Rd2-e2 Nc6-d4 Re2-e1 Rd7-d8
35+ 14:14 11,506,273k 13,463k +0.36 Nf4-d5 Bc8-e6 Ra1-d1 Be6xd5 Nc3xd5 Rd8-d7 Kg1-f2 Rh8-d8 Kf2-e3 a6-a5 Nd5-f4 Nc6-e5 b2-b3 Rd7xd2 Rd1xd2 Rd8-a8 Rd2-d1 a5-a4 b3xa4 Ra8xa4 Nf4-h5 Ne5-c4+ Ke3-f4 g7-g5+ Kf4-g3
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Uri Blass
Posts: 10959
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

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

Post by Uri Blass »

with more time stockfish prefers 19.Rad1 again

FEN: 2br3r/1k4pp/ppn2p2/2p5/4PN2/2N2P2/1PPR2PP/R5K1 w - - 2 19

Stockfish-191-64-ja:

35 49:55 34,663,443k 11,571k +0.36 Nf4-d5 Nc6-e7 Kg1-f2 Rh8-e8 g2-g4 Bc8-e6 Ra1-d1 Be6xd5 Nc3xd5 Ne7xd5 Rd2xd5 Rd8xd5 Rd1xd5 Kb7-c7 Kf2-e3 Re8-e5 Rd5-d2 Re5-e8 Ke3-f4 a6-a5
36 52:07 36,516,124k 11,674k +0.40 Nf4-d5 Nc6-e7 Kg1-f2 Rh8-e8 g2-g4 Bc8-e6 Ra1-d1 Be6xd5 Nc3xd5 Ne7xd5 Rd2xd5 Rd8xd5 Rd1xd5 Kb7-c6 Kf2-e3 h7-h6 h2-h4 a6-a5 c2-c4 Re8-b8 g4-g5 h6xg5 h4xg5 b6-b5 g5xf6 g7xf6 Ke3-d3 b5xc4+ Kd3xc4 Rb8xb2 Rd5xc5+ Kc6-d6 Rc5-d5+ Kd6-e6 Rd5xa5 Rb2-f2 Kc4-d4 Rf2-d2+
37- 1:01:31 44,332,313k 12,010k +0.28 Nf4-d5 Bc8-e6 Ra1-d1 Be6xd5 Nc3xd5 Rd8-d7 Kg1-f2 Rh8-d8 Kf2-e3 f6-f5 Nd5-f4 Rd7xd2 Rd1xd2 Rd8xd2 Ke3xd2
37- 1:16:02 55,996,237k 12,274k +0.16 Nf4-d5 Bc8-e6 Kg1-f2 f6-f5 Ra1-d1 f5xe4 Nc3xe4 Be6xd5 Rd2xd5 Nc6-d4 Rd5xd8 Rh8xd8 c2-c3 Nd4-e6 Rd1xd8 Ne6xd8 b2-b3 Kb7-c6 Kf2-e3 Kc6-d5 Ke3-d3 Nd8-b7 g2-g3 Nb7-a5 b3-b4 c5xb4 c3xb4 Na5-c6
37 1:28:39 66,807,434k 12,558k +0.32 Ra1-d1 Rd8xd2 Rd1xd2 Nc6-d4 Kg1-f2 f6-f5 Nf4-h5 f5xe4 Nc3xe4 Nd4-e6 g2-g4 Kb7-c7 f3-f4 Bc8-b7 f4-f5 Bb7xe4 f5xe6 Rh8-e8 Nh5xg7 Re8-e7 Kf2-e3 Be4-c6 Rd2-f2 Bc6-d5 Rf2-f7 Re7xf7 e6xf7 Bd5xf7 Ng7-f5 Kc7-c6 Ke3-e4 a6-a5 Ke4-e5 a5-a4
38 1:33:25 70,882,217k 12,644k +0.28 Ra1-d1 Rd8xd2 Rd1xd2 Nc6-d4 Kg1-f2 f6-f5 Nf4-h5 f5xe4 Nc3xe4 Nd4-e6 g2-g4 Kb7-c7 f3-f4 Bc8-b7 f4-f5 Bb7xe4 f5xe6 Rh8-e8 Nh5xg7 Re8-e7 Kf2-e3 Be4-c6 Rd2-f2 Bc6-d5 Rf2-f7 Re7xf7 e6xf7 Bd5xf7 Ng7-f5 Kc7-c6 Ke3-e4 a6-a5 Ke4-e5 Kc6-d7 Nf5-e3 b6-b5 g4-g5 a5-a4 Ne3-g4 Kd7-c6
39+ 1:41:22 77,620,654k 12,761k +0.36 Ra1-d1 Rd8xd2 Rd1xd2 Nc6-d4 Kg1-f2 f6-f5 Nf4-h5 f5xe4 Nc3xe4 g7-g6 Nh5-f6
39 1:45:08 80,833,128k 12,813k +0.28 Ra1-d1 Rd8xd2 Rd1xd2 Nc6-d4 Kg1-f2 f6-f5 Nf4-h5 f5xe4 Nc3xe4 Nd4-e6 g2-g4 Kb7-c7 f3-f4 Bc8-b7 f4-f5 Bb7xe4 f5xe6 Rh8-e8 Nh5xg7 Re8-e7 Rd2-e2 Be4-d5 Ng7-h5 Bd5-c4 Re2-e3 Bc4xe6 Nh5-f6 Kc7-d6 Kf2-g3 h7-h6 h2-h4 Be6-f7 Re3xe7 Kd6xe7 Nf6-e4 Bf7-g6 Kg3-f4 Ke7-e6 c2-c4 Ke6-e7 Kf4-e5 Bg6xe4 Ke5xe4
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Uri Blass
Posts: 10959
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

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

Post by Uri Blass »

Stockfish1.9 prefers 24.Nhf4 and not 24.Nef4 but in third try it prefers Nef4 after slightly more than the node limit
[d]2b3r1/6pp/pkn2p2/1ppR3N/4P3/5P2/1PP1N1PP/6K1 w - - 2 24

Stockfish-191-64-ja:
1 00:00 179 90k +0.68 Kg1-f2
2 00:00 263 132k +0.44 Kg1-f2 Bc8-e6
3 00:00 495 248k +0.48 Kg1-f2 Bc8-e6 Rd5-d6
4 00:00 1k 259k +0.16 Kg1-f2 Bc8-e6 Rd5-d6 Be6-f7
4 00:00 2k 340k +0.52 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Nf4-d5+ Kb6-c5
5 00:00 3k 429k +0.52 Ne2-f4 a6-a5 Kg1-f2 Nc6-d4 c2-c3
6- 00:00 5k 490k +0.44 Ne2-f4 Nc6-b4 Rd5-d6+ Kb6-c7
6+ 00:00 7k 574k +0.60 Ne2-f4 Nc6-b4 Rd5-d2 a6-a5 c2-c3
6+ 00:00 7k 575k +0.68 Ne2-f4 Nc6-b4 Rd5-d2 a6-a5 c2-c3
6 00:00 12k 662k +0.56 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7+ 00:00 17k 645k +0.64 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7+ 00:00 18k 665k +0.72 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7- 00:00 20k 648k +0.48 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-b7 b2-b3 Kb7-c7 Rd6-d5 Kc7-b6 Kg1-f2
7 00:00 29k 686k +0.72 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 Bc8-d7 Nf4-d5+ Kc7-b7 Kg1-f2 b5-b4
8 00:00 36k 760k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 Nc6-b4 c2-c3 Nb4-c6
9 00:00 44k 811k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
10 00:00 58k 880k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11+ 00:00 97k 1,082k +0.64 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11+ 00:00 122k 1,242k +0.72 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11 00:00 137k 1,295k +0.68 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 a5-a4 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 g2-g4
12- 00:00 215k 1,483k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 a5-a4 Nf4-d5 Rg8-d8 Nh5xg7 Nc6-b4
12 00:00 257k 1,530k +0.60 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Kf2-e3 a5-a4 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 g2-g4 Nc6-e5
13 00:00 303k 1,636k +0.60 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 Rd5-d1
14- 00:00 668k 2,243k +0.52 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 Rd5-d1
14 00:00 1,888k 3,603k +0.48 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 Kf2-e3 a5-a4 c2-c3 Nc6-e5 Nh5-g3 Rg8-e8 Nf4-h5 Re8-e7
15 00:00 2,506k 3,885k +0.48 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 h2-h3 b5-b4 Rd5-d6 Kb6-c5 Rd6-d5+ Kc5-b6
15+ 00:00 3,023k 4,227k +0.60 Kg1-f2 Bc8-e6 Rd5-d6 Be6-f7 Nh5-g3 Bf7-g6 Ne2-f4 Bg6-f7 Ng3-f5
16+ 00:00 3,777k 4,595k +0.56 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 h2-h3 b5-b4 Rd5-d1 a5-a4 Nf4-d5+ Kb6-b5 Rd1-a1 c4-c3 b2xc3 b4-b3 c2xb3 a4xb3 Kf2-e2
16 00:00 4,568k 4,992k +0.52 Ne2-f4 c5-c4 h2-h3 a6-a5 Rd5-d1 b5-b4 Nf4-d5+ Kb6-c5 Kg1-f2 Bc8-e6 Nh5-f4 Be6-f7 Nd5-c7 a5-a4 Nf4-e6+ Bf7xe6 Nc7xe6+ Kc5-b6 Kf2-e3 a4-a3
17+ 00:01 5,810k 5,635k +0.60 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 Rd5-d1
17 00:01 6,104k 5,759k +0.56 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 h2-h3 Nc6-b4 Rd1-d2 a5-a4 Kf2-e3 c4-c3 b2xc3 Nb4-c6 Rd2-d5+ Kc5-b6 Rd5-d1 a4-a3 Nf4-d5+ Kb6-c5
18- 00:01 7,846k 6,399k +0.48 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 h2-h3 a5-a4 c2-c3 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d1 Kb6-c5
18 00:01 10,954k 7,240k +0.56 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 h2-h3 a5-a4 c2-c3 Nc6-e5 Rd1-d5+ Kc5-b6 Kf2-e3 Bc8-d7 Rd5-d6+ Kb6-c5 Rd6-d1 Bd7-c8 Nh5-g3 Rg8-e8 Rd1-d5+ Kc5-b6 Ng3-f5 Bc8xf5 e4xf5
19- 00:01 11,912k 7,450k +0.48 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 h2-h3 a5-a4 c2-c3 Nc6-e5 Rd1-d5+ Kc5-b6 Kf2-e3 Bc8-d7 Rd5-d6+ Kb6-c5 Rd6-d1 Bd7-c8 Nh5-g3 Rg8-e8 Rd1-d5+ Kc5-c6 Nf4-h5 Re8-g8 Ng3-f5 Bc8xf5
19+ 00:01 15,273k 7,959k +0.64 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 h2-h3 a5-a4 Kf2-e3 b5-b4 Rd1-a1 Nc6-d4 Ra1xa4 Nd4xc2+ Ke3-d2 Kc5-b5 Ra4-a8
19 00:02 16,389k 8,093k +0.60 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 Kb6-c5 Rd1-d5+ Kc5-b6 Kf2-e3 c4-c3 b2xc3 a5-a4 Rd5-d1 Kb6-c5 h2-h4 Kc5-c4 Nf4-d5 Kc4-c5 Nh5-f4 a4-a3 Ke3-d2
20 00:02 26,945k 9,435k +0.64 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 c2-c3 Nc6-e5 Kf2-e3 Bc8-d7 Nh5-g3 Kb6-c5 Ng3-e2 Rg8-a8 Nf4-h5 Ra8-g8 Rd1-d5+ Kc5-b6 Nh5-f4 Rg8-a8 Ne2-d4 a4-a3 b2xa3 Ra8xa3 Rd5-d6+ Kb6-c5
21 00:03 29,064k 9,529k +0.64 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 c2-c3 Nc6-e5 Kf2-e3 Bc8-d7 Nh5-g3 Kb6-c5 Ng3-e2 Rg8-a8 Nf4-h5 Ra8-g8 Rd1-d5+ Kc5-b6 Nh5-f4 Rg8-a8 Ne2-d4 a4-a3 b2xa3 Ra8xa3 Rd5-d6+ Kb6-c5
22- 00:03 38,755k 10,164k +0.56 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 Kb6-c5 Kf2-e3 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d6+ Kb6-c5 Rd6-d1 c4-c3 Rd1-d5+ Kc5-b6 b2xc3 Ne5-c4+ Ke3-d4 a5-a4
22 00:04 46,950k 10,471k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 Kb6-c5 Kf2-e3 Nc6-e5 Nf4-d5 Ne5-c6 c2-c3 h7-h6 Ke3-f2 Bc8-e6 Nh5-f4 Be6-f7 Nd5-c7 Nc6-e5 Nc7-e6+ Kc5-b6 Rd1-d6+ Kb6-b7 Kf2-e2 g7-g5 Nf4-d5
23- 00:06 68,273k 11,194k +0.52 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 Kb6-c5 Kf2-e3 Nc6-e5 Nf4-d5 Ne5-c6 c2-c3 b5-b4 g2-g4 Bc8-e6 Nh5-f4 Be6-f7
23+ 00:07 83,967k 11,341k +0.68 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 Kb6-c5 g2-g4 a5-a4 g4-g5 f6xg5 Rd1-d5+ Kc5-b6 Rd5xg5
23 00:07 89,722k 11,398k +0.64 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Nc6-e5 c2-c3 Bc8-d7 Nh5-g3 Kb6-c5 Ng3-e2 Rg8-a8 Nf4-h5 Ra8-g8 Nh5-f4
24+ 00:08 103,685k 11,549k +0.72 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Nc6-e5 c2-c3 Bc8-d7 h2-h3 Kb6-c5 h3-h4 Kc5-b6 Nf4-d5+ Kb6-c5 Nh5xf6 g7xf6 Nd5xf6
24 00:09 108,792k 11,570k +0.68 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Nc6-e5 c2-c3 Bc8-d7 h2-h3 Kb6-c5 h3-h4 Kc5-b6 Nf4-d5+ Kb6-b7 Nd5xf6 g7xf6 Nh5xf6 Rg8-g7 Rd1-d5 Rg7-f7 Nf6xd7 Ne5xd7 Rd5xb5+ Kb7-c6 Rb5-b4 Nd7-b6 f3-f4 h7-h5
25- 00:10 123,370k 11,672k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 Nf4-d5+ Kb6-a5 Nh5-g3 f5xe4 Ng3xe4 Rg8-d8 Ne4-c5 Rd8-e8+ Nc5-e4 Re8-d8
25- 00:13 164,759k 12,050k +0.52 Ne2-f4 c5-c4 Rd5-d1 f6-f5 Nh5-g3 f5xe4 Ng3xe4 Bc8-f5 Nf4-d5+ Kb6-a7 Kg1-f2 Rg8-d8 g2-g4 Bf5-g6 b2-b4 c4xb3/ep c2xb3 Bg6-f7
25 00:27 340,058k 12,539k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 h2-h3 Kb6-a5 g2-g4 f5xe4 f3xe4 c4-c3 b2xc3 Nc6-e5 Nf4-d5 Bc8-b7 Rd1-a1 Rg8-d8 Nh5xg7 Bb7xd5 e4xd5 Rd8xd5 Ke3-e4 Rd5-d7 Ke4xe5 Rd7xg7 Ra1-f1 Rg7-e7+ Ke5-d4
26- 00:29 366,911k 12,533k +0.48 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 h2-h3 Kb6-a5 g2-g4 f5xe4 f3xe4 c4-c3 b2xc3 Nc6-e5 Nf4-d5 Bc8-b7 Rd1-a1 Rg8-d8 Nh5xg7 Bb7xd5 e4xd5 Rd8xd5 Ke3-e4 Rd5-d7 Ke4xe5 Rd7xg7 Ra1-f1 Rg7-e7+ Ke5-d4 Ka5-b6
26 00:42 541,692k 12,704k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 h2-h3 Kb6-a5 g2-g4 f5xe4 f3xe4 c4-c3 b2xc3 Nc6-e5 Nf4-d5 Bc8-b7 Ke3-d4 Ne5-f3+ Kd4-c5 Rg8-c8+ Kc5-d6 Rc8-c6+
27- 00:44 569,008k 12,735k +0.52 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 h2-h3 Kb6-a5 g2-g4 f5xe4 f3xe4 c4-c3 b2xc3 Nc6-e5 Nf4-d5 Bc8-b7 Ke3-d4 Ne5-f3+ Kd4-c5 Rg8-c8+ Kc5-d6 Rc8-c6+
27- 00:50 651,429k 12,810k +0.44 Ne2-f4 c5-c4 Rd5-d2 a6-a5 Kg1-f2 b5-b4 Kf2-e3 a5-a4 Nf4-d5+ Kb6-c5 c2-c3 b4-b3 Rd2-d1 a4-a3
27 01:31 1,205,118k 13,131k +0.64 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d4 a5-a4 Rd4-d6+ Kb6-c5 Rd6-d5+ Kc5-b6 c2-c3 Bc8-d7 Kf2-e3 Kb6-c7 Rd5-d2 Kc7-b7 Nf4-d5 Bd7-e6 Nh5-f4 Be6-d7 h2-h3 Rg8-e8 Nf4-h5 Re8-g8
28- 01:36 1,262,524k 13,121k +0.56 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Kf2-e3 c4-c3 b2-b3 a5-a4 b3xa4 b5xa4
28- 01:40 1,324,008k 13,120k +0.48 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 b2-b3 Kb6-c5 Rd6-d5+ Kc5-b6 Rd5-d6
28 01:46 1,401,149k 13,138k +0.56 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 b2-b3 Kb6-c5 Rd6-d5+ Kc5-b6 Kf2-e3 Nc6-e5 Rd5-d1 Kb6-c5 Rd1-a1 Ne5-c6 g2-g4 Bc8-d7 h2-h3 Bd7-c8 Ra1-d1 Nc6-e5 Nf4-e2 c4xb3 c2xb3 Bc8-e6 Ne2-d4 Be6-f7 f3-f4 Bf7xh5
29- 01:52 1,482,264k 13,170k +0.44 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 b2-b3 Kb6-c5 Rd6-d5+ Kc5-b6 Kf2-e3 Nc6-e5 Rd5-d1 Bc8-b7 Nf4-e6 c4xb3 c2xb3 Rg8-c8 Rd1-d6+ Kb6-a7 Ne6xg7 Rc8-c3+ Ke3-f4 Ne5-d3+ Kf4-g3 a5-a4 b3xa4 b4-b3
29 02:07 1,688,807k 13,228k +0.44 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 b2-b3 Kb6-c5 Rd6-d5+ Kc5-b6 Kf2-e3 Nc6-e5 Rd5-d1 Bc8-b7 Rd1-b1 c4xb3 c2xb3 a5-a4 b3xa4 Kb6-a5 Nf4-e6 Bb7-c6 Ne6xg7 Bc6xa4 Ng7-f5 Rg8xg2 Nh5xf6 Ne5-c4+ Ke3-f4 Rg2xh2 Rb1-c1 Rh2-c2 Rc1xc2 Ba4xc2 Nf5-d4
30- 03:04 2,467,458k 13,359k +0.28 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 b2-b3 Kb6-c5 Rd6-d5+ Kc5-b6 Kf2-e3 Nc6-e5 Rd5-d1 Bc8-b7 Rd1-b1 c4xb3 c2xb3 a5-a4 b3xa4 Kb6-a5 Nf4-e6 Bb7-c6 Ne6xg7 Bc6xa4 Ng7-f5 Rg8xg2 Nh5xf6 Rg2xh2 Nf6-d5 b4-b3 f3-f4 Ne5-c4+ Ke3-d4 Nc4-a3 Rb1-g1 b3-b2
30 04:27 3,543,053k 13,245k +0.48 Nh5-f4 Rg8-f8 g2-g4 Nc6-b4 Rd5-d2 g7-g5 Nf4-h5 Kb6-c7 Kg1-f2 Bc8-e6 Ne2-c3 Kc7-c6 Nh5-g7 Be6-d7 Nc3-d1 c5-c4 Nd1-c3 Rf8-f7 Ng7-h5 Bd7-c8 Kf2-e2 a6-a5 Ke2-e3 a5-a4 h2-h3 Kc6-c5 Nc3-d5 Nb4xd5+ Rd2xd5+ Kc5-c6 Ke3-d4 Bc8-e6 Rd5-d8
31- 07:51 6,358,781k 13,490k +0.36 Nh5-f4 Rg8-d8 Rd5-h5 h7-h6 Rh5-d5 c5-c4 Ne2-g3 Rd8xd5 Nf4xd5+ Kb6-c5 Ng3-h5 f6-f5 Nh5xg7 f5xe4 f3xe4 Kc5-d4
31 09:04 7,335,974k 13,484k +0.40 Nh5-f4 Rg8-d8 Kg1-f2 c5-c4 Rd5xd8 Nc6xd8 Ne2-d4 b5-b4 Kf2-e3 Kb6-c5 Nd4-f5 Bc8xf5 e4xf5 a6-a5 Nf4-e6+ Nd8xe6 f5xe6 Kc5-d6 Ke3-d4 c4-c3 b2xc3 b4xc3 Kd4xc3 Kd6xe6 Kc3-c4 Ke6-e5 c2-c3 g7-g6 Kc4-b5 Ke5-d5 g2-g3 a5-a4 Kb5-b4 f6-f5 f3-f4 h7-h6 h2-h3
32+ 09:28 7,686,077k 13,515k +0.52 Nh5-f4 Rg8-d8 Kg1-f2 c5-c4 Rd5xd8 Nc6xd8 Kf2-e3 Nd8-e6 Nf4-h5 a6-a5 Ne2-d4 a5-a4 c2-c3 b5-b4 Nd4xe6 Bc8xe6 Ke3-d2 a4-a3 b2xa3 b4xa3 Kd2-c1 Kb6-b5 Nh5xg7 Be6-f7 Kc1-b1 Kb5-c5 f3-f4 Bf7-g6 f4-f5 Bg6-f7 Kb1-a2
32 16:15 13,280,493k 13,614k +0.40 Nh5-f4 Rg8-f8 g2-g4 Nc6-b4 Rd5-d2 g7-g5 Nf4-h5 Kb6-c7 Kg1-f2 Bc8-d7 h2-h3 Bd7-e8 Ne2-g3 a6-a5 f3-f4 a5-a4 Kf2-e3 h7-h6 f4xg5 h6xg5 Rd2-f2 Be8xh5 Ng3xh5 Rf8-a8 Nh5xf6 a4-a3 b2xa3 Ra8xa3+ Ke3-d2 Ra3xh3 e4-e5 Nb4-c6 e5-e6 Rh3-h6 Nf6-e4 Rh6xe6

second try
FEN: 2b3r1/6pp/pkn2p2/1ppR3N/4P3/5P2/1PP1N1PP/6K1 w - - 2 24

Stockfish-191-64-ja:
1 00:00 179 179k +0.68 Kg1-f2
2 00:00 263 263k +0.44 Kg1-f2 Bc8-e6
3 00:00 495 248k +0.48 Kg1-f2 Bc8-e6 Rd5-d6
4 00:00 1k 345k +0.16 Kg1-f2 Bc8-e6 Rd5-d6 Be6-f7
4 00:00 2k 407k +0.52 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Nf4-d5+ Kb6-c5
5 00:00 3k 500k +0.52 Ne2-f4 a6-a5 Kg1-f2 Nc6-d4 c2-c3
6- 00:00 5k 544k +0.44 Ne2-f4 Nc6-b4 Rd5-d6+ Kb6-c7
6+ 00:00 7k 574k +0.60 Ne2-f4 Nc6-b4 Rd5-d2 a6-a5 c2-c3
6+ 00:00 7k 575k +0.68 Ne2-f4 Nc6-b4 Rd5-d2 a6-a5 c2-c3
6 00:00 12k 596k +0.56 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7+ 00:00 17k 559k +0.64 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7+ 00:00 18k 579k +0.72 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7- 00:00 20k 609k +0.48 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-b7 b2-b3 Kb7-c7 Rd6-d5 Kc7-b6 Kg1-f2
7 00:00 29k 613k +0.72 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 Bc8-d7 Nf4-d5+ Kc7-b7 Kg1-f2 b5-b4
8 00:00 36k 687k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 Nc6-b4 c2-c3 Nb4-c6
9 00:00 44k 756k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
10 00:00 58k 802k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11+ 00:00 89k 955k +0.64 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11 00:00 109k 1,044k +0.68 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 a5-a4 c2-c3 Nc6-e5 Nf4-d5
12 00:00 151k 1,182k +0.68 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 a5-a4 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 g2-g4
13- 00:00 197k 1,311k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 a5-a4 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 g2-g4 Nc6-e5
13- 00:00 325k 1,571k +0.52 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Nf4-d5 a5-a4 c2-c3 Bc8-e6
13 00:00 431k 1,691k +0.52 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Nf4-d5 a5-a4 Nd5-c7 c4-c3 b2xc3 a4-a3 Rd1-d5+ Kc5-c4 Nc7xb5
14 00:00 580k 1,928k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 a5-a4 g2-g4 Nc6-b4 c2-c3 Nb4-c6 Rd1-d5+ Kc5-b6
15 00:00 961k 2,230k +0.52 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d2 a5-a4 c2-c3 Nc6-e5 Rd2-d1 Bc8-b7 Kf2-e3 Bb7-c8 Nf4-d5 Bc8-b7 Nd5-e7 Rg8-e8 Ne7-f5 Ne5-d3
16 00:00 1,355k 2,495k +0.52 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d2 a5-a4 c2-c3 Nc6-e5 Rd2-d1 Ne5-c6 Kf2-e3 Nc6-e5 Nf4-d5 Bc8-b7 Nd5-e7 Rg8-e8 Ne7-f5 Ne5-d3
17+ 00:00 2,207k 3,082k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 g2-g4 h7-h6 Rd5-d1 Kb6-c5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Rd1xd5+ Kc5-b6 Nf4-e6
17 00:00 2,920k 3,575k +0.52 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Kf2-e3 c4-c3 b2xc3 a5-a4 Ke3-e2 a4-a3 Rd5-d1 f6-f5 Rd1-a1 f5xe4 Ra1xa3 e4xf3+ Ke2xf3 Bc8-f5
18+ 00:01 7,741k 5,717k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Kf2-e3 c4-c3 b2xc3 a5-a4 Rd5-d1 Kb6-c5 Ke3-e2 h7-h6 Nf4-d5 Bc8-d7 Nd5-e7 Nc6xe7 Rd1xd7
18 00:01 8,108k 5,825k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Kf2-e3 c4-c3 b2xc3 a5-a4 Rd5-d1 Kb6-c5 Ke3-e2 Kc5-c4 Nf4-d5 Bc8-e6
19- 00:01 10,029k 6,316k +0.48 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Nf4-d5 a5-a4 c2-c3 Bc8-e6 Nh5-f4 Be6-f7
19 00:02 16,915k 7,671k +0.52 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Kf2-e3 a5-a4 c2-c3 Nc6-e5 Nh5-g3 g7-g5 Nf4-h5
20+ 00:03 32,069k 9,482k +0.60 Ne2-f4 c5-c4 Rd5-d6 Kb6-c5 Rd6-d1 a6-a5 Kg1-f2 Nc6-e5 Rd1-d5+ Kc5-b6 Nf4-e2 Bc8-b7 Rd5-d6+ Kb6-c5 Rd6-d1 a5-a4 Nh5-f4 Rg8-e8 Ne2-c3 Kc5-b6 Nf4-d5+ Kb6-c5 Nd5-c7
20 00:03 35,030k 9,698k +0.52 Ne2-f4 c5-c4 Rd5-d6 Kb6-c5 Rd6-d1 a6-a5 Kg1-f2 Nc6-e5 Rd1-d5+ Kc5-b6 Kf2-e2 c4-c3 b2xc3 a5-a4 Rd5-d1 Kb6-c5 Nf4-d3+ Kc5-c4 Ke2-d2 Bc8-e6 Nh5-f4 Rg8-e8 Rd1-b1
21+ 00:04 41,370k 9,971k +0.60 Ne2-f4 c5-c4 Kg1-f2 f6-f5 e4xf5 Nc6-b4 f5-f6 g7-g6 Rd5-g5 Rg8-f8 c2-c3 Nb4-d3+ Nf4xd3 c4xd3 Nh5-f4 d3-d2 Nf4-d5+ Kb6-c6 Nd5-e7+ Kc6-d6 Ne7xc8+ Rf8xc8 Kf2-e2
21 00:04 44,776k 10,144k +0.64 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Kf2-e3 a5-a4 c2-c3 Nc6-e5 Rd5-d1 Kb6-c5 Nh5-g3 Bc8-d7 Ng3-e2 Rg8-a8 Nf4-h5 Ra8-g8 Rd1-d5+ Kc5-b6 Ne2-d4 Bd7-c6 Rd5-d6 Kb6-c5 Nd4-f5
22- 00:04 51,394k 10,401k +0.52 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Kf2-e3 c4-c3 b2xc3 a5-a4 Rd5-d1 f6-f5 Nf4-d5+ Kb6-c5 Nh5-f4 f5xe4 f3xe4 Bc8-g4 Nf4-d3+ Kc5-d6 Rd1-b1 Rg8-b8 Nd3-f2 Bg4-h5
22 00:07 83,073k 11,133k +0.52 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Kf2-e2 b5-b4 Nf4-d5 Rg8-d8 Rd1-c1
23 00:12 149,353k 12,007k +0.56 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d2 Kb6-c5 Rd2-d1 Nc6-b4 c2-c3 Nb4-c6 Nh5-g3 Nc6-e5 Kf2-e3 Bc8-d7 Ng3-e2 b5-b4 Rd1-a1 Ne5-c6 Ne2-d4 b4xc3 b2xc3 Nc6xd4 c3xd4+ Kc5-b5 Ra1-b1+ Kb5-c6
24- 00:14 180,845k 12,163k +0.44 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d2 b5-b4 Nf4-d5+ Kb6-c5 Kf2-e3 a5-a4 c2-c3 b4-b3 Rd2-d1 a4-a3
24 00:23 299,020k 12,505k +0.52 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d2 b5-b4 Rd2-d1 Kb6-b5 Rd1-d5+ Kb5-b6 Kf2-e3 a5-a4 Rd5-d1 Kb6-b5 Nf4-d5 f6-f5 Rd1-a1 f5xe4 f3xe4 Bc8-d7 h2-h3 h7-h6 Ra1-d1 Bd7-c8 c2-c3 a4-a3
25+ 00:25 319,454k 12,470k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 Nf4-d5+ Kb6-c5 c2-c3 f5xe4 Nh5-g3
25- 00:29 375,629k 12,538k +0.44 Ne2-f4 a6-a5 Kg1-f2 a5-a4 Rd5-d6 Kb6-b7 Rd6-d1 Nc6-e5 h2-h4 b5-b4 Nf4-d5 Bc8-e6
25 00:35 452,186k 12,677k +0.48 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d4 Kb6-c5 Kf2-e3 a5-a4 c2-c3 Bc8-d7 Rd4-d5+ Kc5-b6 Rd5-d6+ Kb6-c5 Rd6-d2 Bd7-c8 h2-h4 Bc8-d7 Rd2-d1 h7-h6 Ke3-e2 Bd7-c8 Nf4-d5 Ne5-d3
26 00:39 496,865k 12,726k +0.44 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d2 Kb6-c5 Kf2-e2 b5-b4 Rd2-d5+ Kc5-b6 Rd5-d1 Kb6-c5 Nf4-d5 Ne5-c6 Ke2-e3 f6-f5 h2-h3 f5xe4 f3xe4 h7-h6 Rd1-f1 Bc8-e6 Nh5-f4 Be6-f7 Ke3-d2 Nc6-e5
27 00:42 548,473k 12,785k +0.48 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d2 Kb6-c5 Kf2-e2 b5-b4 Rd2-d5+ Kc5-b6 Rd5-d1 Kb6-c5 Nf4-d5 Ne5-c6 Ke2-e3 Bc8-e6 Nh5-f4 Be6-f7 Nd5-c7 a5-a4 Nf4-e6+ Bf7xe6 Nc7xe6+ Kc5-b6 Rd1-a1 Rg8-a8 Ne6xg7 a4-a3
28 00:55 717,341k 12,969k +0.52 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d4 Ne5-c6 Rd4-d1 a5-a4 Kf2-e3 f6-f5 h2-h3 b5-b4 Nf4-d5+ Kb6-b5 Rd1-b1 Bc8-d7 Rb1-a1 f5xe4 f3xe4 h7-h6 Nh5-f4 Nc6-e5 Nf4-e2 Rg8-d8 Ne2-d4+ Kb5-c5 c2-c3
29 01:02 808,587k 12,963k +0.52 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d4 Ne5-c6 Rd4-d1 a5-a4 Kf2-e3 f6-f5 h2-h3 b5-b4 Nf4-d5+ Kb6-b5 Rd1-b1 Bc8-d7 Rb1-a1 f5xe4 f3xe4 h7-h6 Nh5-f4 Nc6-e5 Nf4-e2 c4-c3 b2xc3 b4-b3 Ne2-d4+ Kb5-c4 c2xb3+ a4xb3
30+ 01:15 982,038k 13,033k +0.60 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 a5-a4 c2-c3 Kb6-c5 Rd6-d5+ Kc5-b6 g2-g4 Kb6-a5 Rd5-d6 Nc6-e5 Rd6-d2 Bc8-d7 Kf2-e3 Bd7-c6 Nf4-e6 b5-b4 Nh5xg7 b4xc3 b2xc3 Bc6-d7 Rd2-d5+ Ka5-b6 Rd5-d1
30- 01:31 1,204,990k 13,188k +0.44 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 Kf2-e3 a5-a4 Nh5xf6 g7xf6 Nf4-d5+ Kb6-c5 Rd6xc6+ Kc5xc6 Nd5-e7+ Kc6-d6 Ne7xg8 Kd6-c5 Ng8xf6 a4-a3 b2xa3 b4xa3 Nf6xh7 a3-a2
30- 02:10 1,660,515k 12,679k +0.36 Ne2-f4 a6-a5 Kg1-f2 a5-a4 Rd5-d6 b5-b4 Nf4-d5+ Kb6-b7 Nh5xf6 g7xf6 Rd6xc6 Kb7xc6 Nd5-e7+ Kc6-b5 Ne7xg8 a4-a3
30 04:07 3,231,283k 13,041k +0.32 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 Rd6-d1 Kb6-b5 Nf4-d5 Kb5-c5 Nh5-f4 Rg8-d8 g2-g4 g7-g5 Nf4-h5 f6-f5 g4xf5 Bc8xf5 Rd1-a1 Bf5-e6 Nh5-f6 h7-h6 Kf2-e3 Be6-f7 f3-f4 g5xf4+ Ke3xf4 Kc5-b5 Kf4-e3 Kb5-c5 h2-h3 Bf7-g6 h3-h4 Bg6-f7
31 05:22 4,246,433k 13,169k +0.32 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 Rd6-d1 Kb6-b5 Nf4-d5 Kb5-c5 Nh5-f4 Rg8-d8 g2-g4 g7-g5 Nf4-h5 f6-f5 g4xf5 Bc8xf5 Rd1-a1 Bf5-e6 Nh5-f6 h7-h6 Kf2-e3 Be6-f7 f3-f4 g5xf4+ Ke3xf4 Kc5-b5 Kf4-e3 Kb5-c5 h2-h3 Bf7-g6 h3-h4 Bg6-f7
32- 08:04 6,508,457k 13,428k +0.20 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 b5-b4 Rd6-d1 f6-f5 Nh5-g3 Rg8-d8 Rd1xd8 Nc6xd8 Nf4-d5+ Kb6-c5 Nd5-e7 a5-a4 e4xf5 Bc8-b7
32 11:59 9,705,003k 13,480k +0.28 Nh5-f4 Rg8-f8 Ne2-c3 f6-f5 Rd5-d2 Nc6-d4 Nc3-d5+ Kb6-b7 Nf4-d3 Nd4-e6 e4xf5 Rf8xf5 Nd5-e7 Rf5-f7 Ne7xc8 Kb7xc8 Rd2-e2 Rf7-f6 b2-b3 Kc8-c7 c2-c3 Kc7-c6 Kg1-f2 Kc6-d5 Re2-d2 Ne6-c7 b3-b4 c5xb4 c3xb4 Kd5-c4 Rd2-c2+ Kc4xd3 Rc2xc7 Rf6-g6
33- 13:55 11,309,571k 13,534k +0.20 Nh5-f4 Rg8-f8 Ne2-c3 f6-f5 Rd5-d2 Nc6-d4 Nc3-d5+ Kb6-b7 Nf4-d3 Nd4-e6 e4xf5 Rf8xf5 Nd5-e7 Rf5-f7 Ne7xc8 Kb7xc8 Rd2-e2 Rf7-f6 b2-b3 Kc8-c7 c2-c3 a6-a5 Kg1-f2 Kc7-c6 Nd3-e5+ Kc6-d6 Ne5-g4 Rf6-f8
33 21:45 17,867,228k 13,685k +0.24 Nh5-f4 Rg8-f8 Kg1-f2 f6-f5 e4xf5 Rf8xf5 Rd5-d6 Kb6-c7 Rd6-d2 Nc6-e7 h2-h4 h7-h6 g2-g4 Rf5-f6 Kf2-e3 Bc8-b7 Ne2-c3 Rf6-d6 Rd2-e2 Ne7-g6 Nf4xg6 Rd6xg6 Re2-d2 Rg6-d6 Rd2xd6 Kc7xd6 h4-h5 c5-c4 Nc3-e2 Kd6-c5 Ne2-d4 c4-c3

Third try:

FEN: 2b3r1/6pp/pkn2p2/1ppR3N/4P3/5P2/1PP1N1PP/6K1 w - - 2 24

Stockfish-191-64-ja:
1 00:00 179 179k +0.68 Kg1-f2
2 00:00 263 132k +0.44 Kg1-f2 Bc8-e6
3 00:00 495 248k +0.48 Kg1-f2 Bc8-e6 Rd5-d6
4 00:00 1k 345k +0.16 Kg1-f2 Bc8-e6 Rd5-d6 Be6-f7
4 00:00 2k 340k +0.52 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Nf4-d5+ Kb6-c5
5 00:00 3k 429k +0.52 Ne2-f4 a6-a5 Kg1-f2 Nc6-d4 c2-c3
6- 00:00 5k 490k +0.44 Ne2-f4 Nc6-b4 Rd5-d6+ Kb6-c7
6+ 00:00 7k 574k +0.60 Ne2-f4 Nc6-b4 Rd5-d2 a6-a5 c2-c3
6+ 00:00 7k 534k +0.68 Ne2-f4 Nc6-b4 Rd5-d2 a6-a5 c2-c3
6 00:00 12k 596k +0.56 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7+ 00:00 17k 559k +0.64 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7+ 00:00 18k 579k +0.72 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2
7- 00:00 20k 609k +0.48 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-b7 b2-b3 Kb7-c7 Rd6-d5 Kc7-b6 Kg1-f2
7 00:00 29k 641k +0.72 Ne2-f4 Nc6-e5 Rd5-d6+ Kb6-c7 Rd6-d1 Bc8-d7 Nf4-d5+ Kc7-b7 Kg1-f2 b5-b4
8 00:00 36k 729k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 Nc6-b4 c2-c3 Nb4-c6
9 00:00 44k 782k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
10 00:00 63k 853k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11+ 00:00 112k 1,145k +0.64 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11+ 00:00 129k 1,233k +0.72 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Kf2-e3 Nc6-b4 c2-c3 Nb4-c2+ Ke3-e2
11 00:00 146k 1,262k +0.68 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3
12 00:00 176k 1,362k +0.72 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Nf4-d5
13 00:00 250k 1,553k +0.72 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Rd1-a1
14- 00:00 318k 1,680k +0.64 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Rd1-a1 a5-a4
14- 00:00 438k 1,863k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Rd1-a1 a5-a4
14 00:00 594k 2,056k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Nf4-d5 Bc8-b7
15 00:00 749k 2,264k +0.56 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-c5 Rd6-d1 Nc6-b4 c2-c3 Nb4-c6 Kf2-e3 Nc6-e5 Rd1-a1 a5-a4 Nf4-d5
16+ 00:00 1,675k 3,233k +0.68 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d2 Kb6-c5 Kf2-e3 a5-a4 Rd2-d5+ Kc5-b6 Rd5-d1 Kb6-c5 Rd1-d5+
16 00:00 1,755k 3,299k +0.68 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 Rd1-d5+ Kc5-b6 Rd5-d2 Kb6-c5 Kf2-e3 a5-a4 Rd2-d5+ Kc5-b6 c2-c3 Nc6-e5 Nh5-g3 Kb6-a5 Rd5-d1 Bc8-d7 h2-h4 Rg8-d8
17 00:00 2,539k 3,807k +0.60 Ne2-f4 c5-c4 Rd5-d1 Kb6-c5 Kg1-f2 a6-a5 g2-g4 Nc6-e5 Rd1-d5+ Kc5-b6 g4-g5 f6xg5 Rd5xe5 g5xf4 Nh5xf4 Rg8-d8 Nf4-d5+ Kb6-c6 Re5-g5 g7-g6 Rg5-g1
18 00:00 4,731k 5,131k +0.56 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 a5-a4 Nh5-g3 Kb6-c5 c2-c3 Nc6-e5 Kf2-e3 Rg8-e8 Ng3-e2 Bc8-b7 Ne2-d4 Kc5-b6 Nd4-f5 g7-g6 Nf5-d4 Kb6-c5 Ke3-f2
19 00:02 19,532k 9,537k +0.52 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 a5-a4 Kf2-e3 Kb6-c5 c2-c3 Nc6-e5 Nh5-g3 Rg8-e8 Ng3-e2 Bc8-b7 Ne2-d4 Kc5-b6 Nd4-f5 g7-g6 Nf5-d4 Kb6-c5 Ke3-f2
20+ 00:02 22,869k 9,748k +0.60 Ne2-f4 c5-c4 Rd5-d1 a6-a5 Kg1-f2 a5-a4 Kf2-e3 Kb6-c5 c2-c3 Nc6-e5 Nh5-g3 Rg8-e8 Ng3-e2 Bc8-b7 Ne2-d4 Kc5-b6 Nd4-f5 g7-g6 Nf5-d6 Re8-d8 Nf4-e6
20+ 00:02 23,510k 9,792k +0.68 Ne2-f4 c5-c4 Rd5-d1 Nc6-b4 c2-c3 Nb4-c6 Kg1-f2 Kb6-c5 Kf2-e3 a6-a5 Rd1-d5+ Kc5-b6 Nh5-g3 g7-g5 Nf4-h5 Bc8-e6 Rd5-d1
20 00:02 24,336k 9,805k +0.68 Ne2-f4 c5-c4 Rd5-d1 Nc6-b4 c2-c3 Nb4-c6 Kg1-f2 Kb6-c5 Kf2-e3 a6-a5 Rd1-d5+ Kc5-b6 g2-g4 h7-h6 Rd5-d1 Kb6-c5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Rd1-a1 a5-a4
21 00:03 34,060k 10,486k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Kb6-c5 c2-c3 Nc6-e5 Nh5-g3 Bc8-d7 Ng3-e2 Rg8-a8 h2-h3 h7-h6 Nf4-h5 Ne5-d3 Ne2-f4 Nd3xf4 Nh5xf4 Kc5-c6 Nf4-d5
22 00:03 39,120k 10,645k +0.60 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Kb6-c5 c2-c3 Nc6-e5 Nh5-g3 Bc8-d7 Ng3-e2 Rg8-a8 h2-h3 h7-h6 Nf4-h5 Ne5-d3 Ne2-f4 Nd3xf4 Nh5xf4 Kc5-c6 Nf4-d5
23+ 00:04 46,030k 10,841k +0.68 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Kb6-c5 c2-c3 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d6+ Kb6-c5 Rd6-d1 Bc8-d7 Nf4-e2 h7-h6 Nh5-f4 Rg8-f8 Ne2-d4 Kc5-b6 Nf4-d5+ Kb6-c5 Nd5-c7
23- 00:04 54,426k 11,114k +0.52 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 Kb6-c5 c2-c3 Nc6-e5 Ke3-d2 Kc5-b6 Nf4-d5+ Kb6-c5
23 00:08 96,128k 11,856k +0.56 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 h2-h4 Kb6-c5 c2-c3 Nc6-e5 Kf2-e3 Bc8-d7 Rd1-d5+ Kc5-c6 Nh5-g3 Kc6-b6 Ng3-e2 Rg8-a8 Ne2-d4 a4-a3 b2xa3 Ra8xa3
24- 00:09 115,903k 12,037k +0.48 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 h2-h4 f6-f5 Nf4-d5+ Kb6-c5 Nh5-g3 Rg8-d8 Ng3xf5 Bc8xf5
24+ 00:12 150,618k 12,212k +0.64 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 a5-a4 Kf2-e3 f6-f5 Nf4-d5+ Kb6-c5 c2-c3 f5xe4 Nh5-g3
24 00:15 194,733k 12,360k +0.56 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d2 a5-a4 Nf4-d5+ Kb6-a5 Kf2-e3 f6-f5 h2-h3 f5xe4 f3xe4 Bc8-b7 Nh5-g3 Nc6-e5 Rd2-d1 Rg8-d8 Ng3-e2 Rd8-e8 Ne2-f4 g7-g5 Nf4-e2 Bb7xd5 Rd1xd5 Ka5-b4 c2-c3+ Kb4-a5 Ne2-d4
25- 00:18 229,922k 12,533k +0.48 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d2 Kb6-c5 Kf2-e3 b5-b4 Rd2-d5+ Kc5-b6 b2-b3 g7-g5 Nf4-e2 c4xb3 c2xb3 Bc8-e6 Nh5xf6 Rg8-g6 Nf6xh7 Be6xd5 e4xd5 Nc6-e7 Ke3-d4 a5-a4 b3xa4 b4-b3 Ne2-c3 b3-b2 Nc3-b1 Rg6-d6
25+ 00:24 312,617k 12,720k +0.64 Ne2-f4 c5-c4 Kg1-f2 a6-a5 Rd5-d1 b5-b4 g2-g4 a5-a4 Nf4-d5+ Kb6-b5 Kf2-e3 Nc6-e5 g4-g5 f6xg5 Nd5-e7
25- 00:34 440,329k 12,936k +0.40 Ne2-f4 a6-a5 Kg1-f2 a5-a4 Rd5-d6 b5-b4 e4-e5 f6xe5 Nf4-d5+ Kb6-b5 Rd6xc6 Kb5xc6 Nd5-e7+ Kc6-b5 Ne7xg8 a4-a3 b2xa3 b4xa3 Nh5xg7 a3-a2
25 00:53 705,826k 13,152k +0.60 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d4 Ne5-c6 Rd4-d1 b5-b4 g2-g4 Nc6-e7 Kf2-e3 a5-a4 Nf4-e2 h7-h6 h2-h3 Bc8-b7 Ne2-d4 Bb7-c8 Rd1-a1 Bc8-d7 h3-h4 Kb6-c5 Nh5-f4 Kc5-d6 h4-h5 c4-c3 b2xc3 b4xc3
26 00:54 713,763k 13,144k +0.60 Ne2-f4 a6-a5 Rd5-d6 c5-c4 Kg1-f2 Kb6-c5 Rd6-d1 Nc6-e5 Rd1-d5+ Kc5-b6 Rd5-d4 Ne5-c6 Rd4-d1 b5-b4 g2-g4 Nc6-e7 Kf2-e3 a5-a4 Nf4-e2 h7-h6 h2-h3 Bc8-b7 Ne2-d4 Bb7-c8 Rd1-a1 Bc8-d7 h3-h4 Kb6-c5 Nh5-f4 Kc5-d6 h4-h5 c4-c3 b2xc3 b4xc3
27- 01:02 818,366k 13,035k +0.52 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 a5-a4 c2-c4 b5-b4 Nf4-d5+ Ne7xd5 c4xd5 Kc7-d6
27- 01:05 854,470k 13,037k +0.44 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Rd1-a1 Kc7-b6 Kg1-f2 f6-f5 Ra1-e1 Kb6-c6 e4-e5 g7-g5 Nf4-h3 h7-h6 Re1-d1 Kc6-c7 Nh5-f6 Rg8-d8 Rd1xd8 Kc7xd8
27- 01:19 1,047,409k 13,138k +0.28 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 a5-a4 Rd1-e1 Kc7-c6 Re1-a1 f6-f5 c2-c4 b5xc4 Ra1xa4 f5xe4 f3xe4 g7-g5 Nh5-f6 Rg8-f8 Nf4-h5 Ne7-g6 Ra4xc4 Ng6-e5
27 01:50 1,469,422k 13,286k +0.32 Nh5-f4 Rg8-f8 Rd5-d6 Kb6-c7 Rd6-d2 Kc7-b7 Ne2-c3 f6-f5 Nf4-d5 Nc6-d4 e4-e5 Rf8-e8
28 02:48 2,273,774k 13,489k +0.32 Nh5-f4 Rg8-f8 Ne2-g3 Nc6-b4 Rd5-d6+ Kb6-c7 Rd6-d2 g7-g5 Nf4-d5+ Nb4xd5 Rd2xd5 Kc7-c6 Ng3-f5 Bc8xf5 Rd5xf5 Kc6-d6 Kg1-f2 c5-c4 Rf5-d5+ Kd6-e7 Kf2-e3 Rf8-c8 Ke3-d4 Ke7-e6 e4-e5 f6xe5+ Rd5xe5+ Ke6-f6 Re5-d5 Rc8-e8 Rd5-d6+ Re8-e6 Rd6xe6+ Kf6xe6 Kd4-c5 Ke6-e7
29 04:00 3,279,005k 13,645k +0.32 Nh5-f4 Rg8-f8 Rd5-d1 f6-f5 e4xf5 Bc8xf5 Nf4-d5+ Kb6-b7
30+ 04:38 3,793,300k 13,635k +0.40 Nh5-f4 Rg8-f8 Kg1-f2 f6-f5 e4xf5 Rf8xf5 Rd5xf5 Bc8xf5 Nf4-d5+ Kb6-b7 Nd5-e3 Nc6-e7
30 04:57 4,070,958k 13,674k +0.32 Nh5-f4 Rg8-f8 Kg1-f2 f6-f5 e4xf5 Rf8xf5 Rd5-d2 Kb6-b7 Nf4-d5 Rf5-f8 Ne2-g3 Rf8-d8 Kf2-e3 Nc6-d4 Nd5-f4 Kb7-c7 Nf4-h5 Rd8-d7 c2-c3 Nd4-e6 Rd2xd7+ Bc8xd7 Ng3-e4 c5-c4 Nh5-f4 Kc7-c6 Nf4xe6 Bd7xe6 Ke3-d4 Be6-d5 Ne4-g5 h7-h6
30+ 05:05 4,175,212k 13,649k +0.48 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 a5-a4 Kf2-e3 Bc8-d7 Nf4-d3 Kc7-c6 Nh5-f4 Rg8-d8 g2-g4
31- 05:44 4,710,958k 13,688k +0.24 Nh5-f4 Rg8-f8 Kg1-f2 f6-f5 e4xf5 Rf8xf5 Rd5-d2 Kb6-b7 Nf4-d5 Rf5-f8 Ne2-c3 Rf8-d8 Nc3-e4 Nc6-b4 Nd5xb4 Rd8xd2+ Ne4xd2 c5xb4 Kf2-e3 Kb7-c6 Nd2-e4 Kc6-d5 Ke3-f4 Bc8-d7
31 08:43 7,121,981k 13,593k +0.24 Nh5-f4 Rg8-f8 Kg1-f2 f6-f5 e4xf5 Rf8xf5 h2-h4 Rf5xd5 Nf4xd5+ Kb6-b7 Ne2-g3 Nc6-d4 c2-c3 Nd4-f5 Ng3xf5 Bc8xf5 Nd5-f4 b5-b4 c3xb4 c5xb4 Nf4-h5 g7-g6 Nh5-f6 h7-h6 Nf6-g8 h6-h5 Ng8-e7 Bf5-c2 Kf2-e3 a6-a5 g2-g4 Kb7-c7 Ke3-d4 h5xg4
32 11:52 9,764,855k 13,707k +0.20 Nh5-f4 Rg8-f8 Ne2-c3 f6-f5 Rd5-d2 Kb6-b7 Nf4-e2 Nc6-b4 e4-e5 Rf8-e8 f3-f4 Re8-e7 Kg1-f2 Re7-d7 Kf2-e1 Kb7-c6 g2-g3 a6-a5 Rd2xd7 Bc8xd7 Ke1-d2 a5-a4 Nc3-d1 Nb4-d5 c2-c4 b5xc4 Ne2-c3 Nd5-b6 Nd1-e3 g7-g6 Kd2-e2 Bd7-e6 Ke2-f3 Kc6-d7
32+ 12:31 10,312,598k 13,716k +0.32 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 Kc7-b6 Rd1-c1
32 12:50 10,559,481k 13,710k +0.28 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 a5-a4 c2-c3 Kc7-c6 h2-h4 Bc8-d7 g2-g4 Bd7-e8 g4-g5 f6xg5 h4xg5 Be8-f7 Rd1-h1 Bf7-c4 Kf2-e3 b5-b4 c3xb4 c5xb4 Nh5-g3 Kc6-b5 Ng3-e2 a4-a3 b2xa3 b4xa3 Ne2-d4+ Kb5-a4 Rh1xh7 a3-a2 Rh7-h1 Rg8-h8 Rh1-a1 Ka4-b4
33+ 16:30 13,424,214k 13,558k +0.36 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 a5-a4 Kf2-e3 Kc7-c6 h2-h4 b5-b4 Rd1-c1 f6-f5 c2-c3 a4-a3 b2xa3 b4xa3 Rc1-a1 f5xe4 f3xe4 g7-g6 Nh5-f6
33 16:59 13,805,170k 13,537k +0.24 Ne2-f4 Nc6-e7 Rd5-d6+ Kb6-c7 Rd6-d1 a6-a5 Kg1-f2 a5-a4 Kf2-e3 Kc7-b6 c2-c3 Kb6-c6 Rd1-a1 f6-f5 c3-c4 f5xe4 f3xe4 Rg8-e8 c4xb5+ Kc6xb5 Nf4-e2 Ne7-d5+ Ke3-f3 Re8-f8+ Kf3-g3 Nd5-e3 Nh5xg7 Rf8-g8 Kg3-f3 Rg8xg7 Ne2-c3+ Kb5-c6 Kf3xe3 Rg7xg2 Nc3xa4 Rg2xh2 Na4xc5 Kc6xc5 Ra1-c1+ Kc5-d6 Rc1xc8 Rh2xb2 Rc8-d8+ Kd6-e6
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Leto
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Re: Stockfish 1 with 12 threads and 2 hours vs Stockfish 17.1 with 12 threads and 1 minute, who wins?

Post by Leto »

Uri Blass wrote: ↑Fri Nov 14, 2025 2:18 am
Leto wrote: ↑Fri Nov 14, 2025 2:06 am
Uri Blass wrote: ↑Tue Nov 11, 2025 10:25 pm Old Stockfish needs with 6 cores 4096 mbytes hash needs more than 4 hours to find 33.Kd2 that may be too late to save the game
[d]6r1/7p/2n1bN2/k2N2p1/ppp1Pp2/4KP1P/1PP3P1/R7 w - - 0 33


Thanks. From my understanding since Stockfish 1 doesn't use brute force search that means it's not guaranteed that Stockfish 1 would find the correct move no matter how much time you give it. For example if you did that same search again maybe SF 1 would find 33.Kd2 in 1 hour instead of 4 hours but it is also possible it would never find it.

One thing is for sure and it's that SF17 is far more accurate so even if I gave SF1 1000 times as much time as SF17 I feel that SF17 would still likely outperform SF1.
I do not understand why do you think that stockfish1 does not use Brute force search.
Stockfish1 with many cores is not deterministic but it only means that the time it finds the right move is not constant and not that stockfish will never find the move.

maybe you are right that with 1000:1 time handicap stockfish17 is going to still win and maybe not but I believe that stockfish1 is going to be better at time handicap that is big enough.
I highly doubt Stockfish 1 or any official Stockfish uses brute force search. I think it has always used selective search. And if it uses selective search that means there may be instances where it cannot find the correct move no matter how much time you give it. Fortunately those situations are rare.
Last edited by Leto on Sat Nov 15, 2025 4:48 am, edited 1 time in total.
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Leto
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Re: Stockfish 1 with 12 threads and 2 hours vs Stockfish 17.1 with 12 threads and 1 minute, who wins?

Post by Leto »

Here's an article detailing Stockfish's search algorithms: https://deepwiki.com/official-stockfish ... hatgpt.com

Note that brute force is not mentioned anywhere. I asked the AI in that page if Stockfish uses brute force techniques and here's what it said: "No, Stockfish does not use brute force search. Instead, it implements alpha-beta search with extensive pruning and optimization techniques to avoid examining most positions."
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Uri Blass
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Re: Stockfish 1 with 12 threads and 2 hours vs Stockfish 17.1 with 12 threads and 1 minute, who wins?

Post by Uri Blass »

Leto wrote: ↑Sat Nov 15, 2025 4:46 am Here's an article detailing Stockfish's search algorithms: https://deepwiki.com/official-stockfish ... hatgpt.com

Note that brute force is not mentioned anywhere. I asked the AI in that page if Stockfish uses brute force techniques and here's what it said: "No, Stockfish does not use brute force search. Instead, it implements alpha-beta search with extensive pruning and optimization techniques to avoid examining most positions."
alpha beta with reduction and extensions and pruning is supposed ro always find the right move with enough time.
I think there is only one exception that is null move pruning.

My conclusion is that the losing move in the game was probably 28.Ra1 and that even 2400:1 time handicap is not enough and probably stockfish1.9.1 needs some hours per move only to draw against stockfish17.1 with 1/4 second per move.

If we talk about winning then I doubt stockfish17.1 can win with some hours per move against stockfish17.1 with 1/4 second per move and I will not surprised if it is going to be a draw.

Latest stockfish after 28.Ra1 shows the following and 1.65 is probably winning:
[d]2b3r1/6pp/1kn2p2/7N/ppp1PN2/5P2/1PP2KPP/R7 b - - 1 28

Stockfish_25111416_x64_avx2:
Available processors: 0-7
Using 6 threads
NNUE evaluation using nn-49c1193b131c.nnue (125MiB, (102384, 1024, 15, 32, 1))
NNUE evaluation using nn-37f18f62d772.nnue (6MiB, (22528, 128, 15, 32, 1))
Network replica 1: Shared memory.
1/4 00:00 243 243k +1.30 Kb6-a5
2/4 00:00 970 970k +0.79 Kb6-a5 Nf4-d5
3/6 00:00 2k 2,051k +0.79 Kb6-a5 Nf4-d5
4/7 00:00 3k 2,721k +0.77 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5
5/7 00:00 4k 3,596k +0.76 Kb6-a5 c2-c3 b4-b3
6/9 00:00 6k 5,596k +0.72 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 c2-c3
7/8 00:00 6k 6,195k +0.72 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 c2-c3 b4-b3
8/9 00:00 18k 4,538k +0.80 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Rg8-d8
9/18 00:00 24k 3,426k +0.80 Kb6-a5 Nf4-d5 Bc8-e6 Nd5-e3 Be6-f7 Nh5-f4 Rg8-d8 Nf4-d5 Bf7xd5 e4xd5 Nc6-e5
10/11 00:00 24k 3,489k +0.80 Kb6-a5 Nf4-d5 Bc8-e6 Nd5-e3 Be6-f7 Nh5-f4 Rg8-d8 Nf4-d5 Bf7xd5 e4xd5
11/21 00:00 44k 3,352k +0.87 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-d5 Bf7xd5 Ne3xd5 Nc6-d4
12/17 00:00 53k 3,340k +0.91 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 c2-c3 Rg8-d8
13/27 00:00 192k 2,526k +0.91 Kb6-a5 Ra1-d1 f6-f5 Rd1-d5+ Ka5-b6 e4xf5 a4-a3 b2xa3 b4xa3 f5-f6 a3-a2
14/25 00:00 406k 2,741k +1.00 Kb6-a5 Nf4-d5 Bc8-e6 Nd5-e3 Be6-f7 Nh5-f4 Ka5-b5 h2-h4
15/30 00:00 611k 2,881k +0.98 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-e2 Rg8-a8 Ne3-f5 Kb5-c5 Nf5xg7 b4-b3 c2xb3 c4xb3 Ng7-f5
16/30 00:00 916k 2,983k +0.99 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-e2 Rg8-d8 Kf2-e1 Rd8-d7 h2-h4 Rd7-a7 Ne3-f5 Kb5-c5 Nf5xg7 a4-a3 b2xa3 Ra7xa3 Ra1-c1 c4-c3
17/42 00:00 2,139k 3,197k +1.02 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 Rg8-d8 b2-b3 c4xb3 c2xb3 a4-a3 Ra1-c1 Nc6-a7 Rc1-c5+ Na7-b5 Nd5-c7
18/35 00:00 2,547k 3,208k +1.03 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 h2-h4 Rg8-a8 Ne3-f5 Ra8-d8 Nf4-e2 g7-g6 Nf5-e3 h7-h5 Kf2-e1 g6-g5 Ra1-d1 g5xh4
19/22 00:00 2,585k 3,204k +1.03 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 h2-h4 Rg8-a8 Ne3-f5 Ra8-d8 Nf4-e2 g7-g6 Nf5-e3 h7-h5 Kf2-e1 g6-g5 Ra1-d1 g5xh4
20/41 00:01 4,269k 3,239k +1.00 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 Rg8-f8 g2-g3 Rf8-e8 b2-b3 c4xb3 c2xb3
21/42 00:02 6,775k 3,245k +1.06 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 h2-h4 Rg8-b8 g2-g4 f5xg4 f3xg4 Rb8-b7 h4-h5 Rb7-a7 Ra1-b1 Bf7xd5 e4xd5 Ra7-e7+ Nf4-e6 Nc6-d8 Ke3-d4 Nd8xe6+ d5xe6 Re7xe6 Kd4xc4 Re6-e4+ Kc4-d3 Re4xg4
22/44 00:02 9,484k 3,253k +1.00 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 c2-c3 b4-b3 Nf1-d2 Ka5-b5 h2-h3 Bg4-e6 Nd5-f4 Be6-g8 h3-h4 Nc6-e5 Ke3-e2
23/56 00:05 18,943k 3,199k +0.91 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 h2-h4 f5xe4 f3xe4 h7-h6 h4-h5 Rg8-b8 g2-g4 Bf7-g8 Ra1-d1 b4-b3 Ke3-d2 Nc6-e5 c2xb3 Bg8xd5 e4xd5 c4xb3 d5-d6 Rb8-c8 Kd2-e2 Rc8-c2+ Ke2-e3 Ne5-c4+ Ke3-e4 Nc4xb2
24/60 00:08 26,497k 3,205k +0.92 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 f5xe4 f3xe4 Rg8-f8 h2-h4 Rf8-f7 h4-h5 h7-h6 g2-g4 Ka5-b5 Ra1-d1 Kb5-c5 Nd5-f4 Rf7-a7 Nf4-e6+ Kc5-b5 g4-g5
25/50 00:08 28,445k 3,207k +0.94 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 f5xe4 f3xe4 Rg8-f8 h2-h4 Rf8-f7 Ra1-d1 Ka5-b5 h4-h5 h7-h6 Ke3-e2 Nc6-e5 Ke2-e3 Kb5-c5 Nd5-f4 Rf7-d7 Nf4-e6+ Kc5-c6 Rd1-a1 b4-b3 c2xb3 a4xb3 Ra1-c1 Kc6-b5 Ne6-f4 Kb5-c5
26/48 00:08 28,647k 3,207k +0.94 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 f5xe4 f3xe4 Rg8-f8 h2-h4 Rf8-f7 Ra1-d1 Ka5-b5 h4-h5 h7-h6 Ke3-e2 Nc6-e5 Ke2-e3 Kb5-c5 Nd5-f4 Rf7-d7 Nf4-e6+ Kc5-b6
27/54 00:09 31,313k 3,206k +0.94 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 f5xe4 f3xe4 Rg8-f8 h2-h4 Rf8-f7 Ra1-d1 Ka5-b5 h4-h5 h7-h6 Ke3-e2 Nc6-e5 Ke2-e3 Kb5-c5 Nd5-f4 Rf7-d7 Nf4-e6+ Kc5-c6 Rd1-a1 b4-b3 c2xb3 a4xb3 Ra1-c1 Kc6-b5 Ne6-f4 Rd7-d8
28/44 00:10 32,907k 3,211k +0.94 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 f5xe4 f3xe4 Rg8-f8 h2-h4 Rf8-f7 h4-h5 h7-h6 Ra1-d1 Ka5-b5 g2-g4 Kb5-c5 Nd5-f4 Rf7-a7 Nf4-e6+ Kc5-b6 Rd1-g1 Ra7-d7 Rg1-a1 Kb6-b5 Ra1-f1 c4-c3 b2xc3 b4xc3 Rf1-f5+ Kb5-b6 Ne6-c5 Rd7-a7 Ke3-d3 Nc6-e7 Rf5-e5
29/58 00:12 41,166k 3,208k +0.92 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6xd5 Nf4xd5 Rg8-f8 h2-h4 g7-g6 Ra1-d1 Ka5-b5 Nd5-c7+ Kb5-b6 Nc7-d5+ Kb6-c5 Nd5-c7 Rf8-f7 Nc7-e6+ Kc5-b5 h4-h5 g6xh5 e4xf5 Rf7xf5 f3-f4 Kb5-b6 Ke3-e4 Rf5-a5 c2-c3 b4-b3 Rd1-a1 h5-h4 Ne6-d4 Nc6xd4 Ke4xd4 a4-a3 b2xa3 Kb6-b5 f4-f5
30/53 00:15 50,487k 3,171k +0.90 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-f4 g7-g5 Nf4-e2 Bg4xe2 Ke3xe2 Nc6-d4+ Ke2-d2 Rg8-f8 Ra1-d1 Nd4-e6 Kd2-e3 Ka5-b5 h2-h4 g5-g4 Nd5-e7 Rf8-d8 Ne7-d5 Rd8-a8 e4-e5 Ra8-d8 Ke3-e4 Kb5-c5 c2-c3 b4-b3 Nd5-e3 g4-g3 Rd1xd8 Ne6xd8 Ne3-d1 Nd8-e6 Ke4-f5 Ne6-c7 h4-h5 Nc7-d5 e5-e6 Kc5-c6 Kf5-e5
31/52 00:17 56,720k 3,172k +0.91 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 h2-h4 h7-h6 h4-h5 f5xe4 f3xe4 Rg8-b8 g2-g4 Bf7-g8 Ra1-d1 b4-b3 Ke3-d2 Nc6-e5 Kd2-c3 Ne5xg4 Rd1-a1 Ng4-e5 Ra1-c1 Ka5-b5 c2xb3 c4xb3 Kc3-d4 Ne5-c6+ Kd4-d3 Rb8-b7 Kd3-e3 a4-a3 Nd5-c3+ Kb5-a5 b2xa3 Nc6-e5 Ke3-d4 Ne5-c4 Nf4-d3 Nc4xa3
32/55+ 00:19 60,489k 3,167k +0.96 Kb6-a5
32/55+ 00:21 66,561k 3,155k +1.01 Kb6-a5
32/55- 00:22 69,289k 3,149k +0.94 Kb6-a5 Kf2-e3
32/55+ 00:24 76,345k 3,131k +0.94 Kb6-a5
32/60 00:31 95,461k 3,006k +1.05 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 h2-h4 g7-g6 Ra1-d1 Rg8-d8 g2-g4 f5xg4 f3xg4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Nd5-c7 a4-a3 b2xa3 b4xa3 Rd1-a1 Ka5-a4 Nf4-e2 Rh8-h3+ Ke3-d2 Ka4-b4 Nc7-a6+ Kb4-a5 Na6-c7 Nc6-e5 Ne2-c3 Rh3-h2+ Kd2-e3 Rh2xc2 Ra1xa3+ Ka5-b4 Nc3-b1 Rc2-c1 Nc7-a6+ Kb4-b5 Nb1-c3+ Rc1xc3+ Ra3xc3 Kb5xa6 Ke3-d4 Ne5-d3 Rc3-a3+ Ka6-b5
33/40- 00:32 97,622k 2,997k +0.95 Kb6-a5 Kf2-e3
33/62+ 00:36 110,577k 3,003k +0.95 Kb6-a5
33/73+ 00:37 112,187k 3,004k +1.01 Kb6-a5
33/73- 00:37 113,245k 3,004k +0.92 Kb6-a5 Kf2-e3
33/73+ 00:37 113,851k 3,006k +0.92 Kb6-a5
33/73 00:38 115,796k 3,011k +0.92 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 h2-h4 g7-g6 g2-g4 f5xg4 f3xg4 h7-h6 Nd5-f6 Rg8-f8 Nf4-d5 Bf7xd5 Nf6xd5 Rf8-f7 e4-e5 Rf7-f8 b2-b3 a4-a3 b3xc4 Nc6xe5 Ke3-d4 Ne5-f3+ Kd4-d3 Rf8-c8 c2-c3 Nf3-e5+ Kd3-d4 Ne5xc4 c3xb4+ Ka5-a4 b4-b5 Ka4-b3 b5-b6 Rc8-b8 Ra1-b1+ Kb3-c2 Rb1-f1 Nc4xb6 Rf1-f2+ Kc2-b3 Rf2-f3+ Kb3-a4 Nd5-c3+ Ka4-a5
34/58- 00:46 138,811k 3,016k +0.88 Kb6-a5 Kf2-e3
34/58+ 00:46 139,146k 3,016k +0.88 Kb6-a5
34/71+ 00:50 150,436k 3,006k +1.03 Kb6-a5
34/72- 00:52 155,922k 2,977k +0.92 Kb6-a5 Kf2-e3
34/72+ 00:58 171,524k 2,927k +0.92 Kb6-a5
34/72 00:59 173,911k 2,930k +0.99 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 h2-h4 g7-g6 g2-g4 f5xg4 f3xg4 h7-h6 Nd5-f6 Rg8-a8 Nf4-d5 Ra8-a7 Ke3-f4 Ka5-b5 Ra1-d1 Bf7-e6 Nf6-e8 Kb5-c5 Ne8-f6 a4-a3 b2xa3 b4xa3 c2-c3 a3-a2 Rd1-a1 Ra7-a4 g4-g5 h6-h5 Nd5-e3 Ra4-a3
35/67+ 01:01 181,394k 2,941k +1.01 Kb6-a5
35/67- 01:02 183,998k 2,944k +0.96 Kb6-a5 Kf2-e3
35/67+ 01:04 191,311k 2,948k +0.96 Kb6-a5
35/67 01:07 200,395k 2,953k +1.04 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-f4 g7-g5 Nf4-e2 Bg4xe2 Ke3xe2 Nc6-d4+ Ke2-d2 Rg8-f8 Ra1-d1 Nd4-e6 Kd2-e3 Ka5-b5 h2-h4 g5-g4 Nd5-e7 Rf8-d8 Ne7-d5 Kb5-c5 Rd1-f1 Rd8-a8 Ke3-d2 Ra8-f8 Nd5-f6 Rf8-d8+ Kd2-c1 Ne6-d4 e4-e5 Nd4-e2+ Kc1-b1 Rd8-d2
36/39+ 01:11 210,779k 2,956k +1.06 Kb6-a5
36/64+ 01:16 226,313k 2,963k +1.11 Kb6-a5
36/64+ 01:26 257,339k 2,965k +1.18 Kb6-a5
36/67 01:32 274,202k 2,975k +1.19 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 c2-c3 b4-b3 Nf1-d2 Ka5-b5 h2-h4 h7-h6 Nd2-b1 Bg4-e6 Nd5-f4 Be6-g8 Ke3-e2 Nc6-e5 Nb1-a3+ Kb5-c5 Na3-b1 Rd7-a7 Nb1-a3 Bg8-f7 h4-h5 Ra7-d7 Na3-b1 Kc5-b5 Nb1-a3+ Kb5-b6 Ra1-d1 Rd7xd1 Ke2xd1 Kb6-c6
37/80- 01:35 283,949k 2,980k +1.09 Kb6-a5 Kf2-e3
37/80+ 01:35 285,472k 2,981k +1.09 Kb6-a5
37/80 01:40 301,187k 2,984k +1.13 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Nf1-d2 Ka5-b5 h2-h4 Bg4-e6 Nd5-f4 Nc6-d4 Ra1-c1 Be6-g4 Nd2-f3 Nd4-c6 Nf4-d5 Bg4xf3 g2xf3 Rd7-a7 Rc1-d1 a4-a3 b2xa3 Ra7xa3+ Ke3-f4 Kb5-c5 Nd5-c7 Ra3-c3 Nc7-e6+ Kc5-b6 Rd1-d2 Nc6-a7
38/69+ 01:45 316,923k 2,991k +1.18 Kb6-a5
38/69- 01:56 347,157k 2,974k +1.12 Kb6-a5 Kf2-e3
38/69+ 01:58 353,517k 2,975k +1.12 Kb6-a5
38/78 02:01 362,167k 2,977k +1.19 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-f4 g7-g5 Nf4-e2 Bg4xe2 Ke3xe2 Nc6-d4+ Ke2-d2 Rg8-f8 Ra1-d1 Nd4-e6 Kd2-e3 Ka5-b5 h2-h4 g5-g4 Nd5-e7 Rf8-d8 Ne7-d5 Kb5-c5 Rd1-f1 Rd8-a8 Ke3-d2 a4-a3 b2xa3 b4xa3 c2-c3 a3-a2 Rf1-a1 Kc5-d6 Nd5-b6 Ra8-b8 Nb6-a4 Kd6-c6 Ra1xa2 Rb8-d8+ Kd2-e3 Rd8-d3+ Ke3-e2 Ne6-f4+ Ke2-f1
39/79+ 02:06 377,658k 2,976k +1.23 Kb6-a5
39/79+ 02:28 441,967k 2,985k +1.30 Kb6-a5
39/79- 02:28 444,045k 2,985k +1.21 Kb6-a5 Kf2-e3
39/79+ 02:30 447,964k 2,985k +1.21 Kb6-a5
39/80 02:48 500,044k 2,975k +1.23 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 h2-h4 Ka5-b5 Nf1-d2 Bg4-e6 Nd5-f4 Nc6-d4 Ra1-c1 Be6-g4 Nd2-f3 Nd4-c6 Nf4-d5 Bg4xf3 g2xf3 Rd7-a7 Rc1-d1 a4-a3 b2xa3 Ra7xa3+ Ke3-f4 Kb5-c5 Nd5-c7 Ra3-c3 Rd1-d2 b4-b3 Rd2-d5+ Kc5-b6 c2xb3 Nc6-b4
40/73 02:59 533,058k 2,973k +1.24 Kb6-a5 Nf4-d5 Bc8-e6 Nd5-e3 Ka5-b5 h2-h4 Be6-f7 Nh5-f4 Rg8-a8 h4-h5 Kb5-c5 Ra1-d1 Nc6-e5 Nf4-e2 Ra8-a7 f3-f4 Ne5-c6 g2-g4 Ra7-a8 c2-c3 b4-b3 Ne2-g3 Nc6-a7 e4-e5 f6xe5 Ng3-e4+ Kc5-c6 Rd1-d6+ Kc6-c7 f4xe5 Na7-b5 Ne3-d5+ Bf7xd5 Rd6xd5 a4-a3 b2xa3 Nb5xa3 e5-e6 b3-b2 Rd5-d7+ Kc7-b6 Rd7-d6+ Kb6-a5 Ne4-d2 b2-b1R Nd2xb1 Na3xb1 Rd6-d4 Ra8-c8 g4-g5 Ka5-b6
41/77+ 03:14 579,075k 2,977k +1.30 Kb6-a5
41/77 03:38 650,774k 2,982k +1.26 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-e2 Rg8-d8 h2-h4 h7-h5 Ne3-f5 g7-g6 Nf5-e3 Rd8-d7 Ra1-c1 g6-g5 g2-g3 g5xh4 g3xh4 Kb5-a5 Rc1-a1 Rd7-d8 Kf2-e1 Nc6-e5 f3-f4 Ne5-f3+ Ke1-f2 Nf3-d2 e4-e5 f6xe5 f4xe5 a4-a3 Ne3-f5 Bf7-g6 Nf5-d6 Nd2-e4+ Nd6xe4 Bg6xe4 b2xa3 b4-b3 c2xb3 c4xb3 Ne2-c3 Be4-f5 Ra1-e1 Rd8-c8 e5-e6 Rc8xc3 Re1-e5+ Ka5-a6 Re5xf5
42/70 04:04 727,097k 2,974k +1.34 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-e2 Rg8-d8 Ne3-f5 g7-g6 Nf5-e3 g6-g5 Kf2-e1 h7-h5 Ra1-d1 Rd8xd1+ Ke1xd1 Kb5-c5 c2-c3 b4-b3 Kd1-c1 Nc6-e5 Kc1-b1 h5-h4 Ne2-d4 Kc5-d6 g2-g3 h4-h3 Nd4-f5+ Kd6-d7 Nf5-d4 Kd7-d8 Ne3-d1 Ne5-d3 Nd1-e3 Nd3-e1 Kb1-c1 Kd8-e7 Nd4-f5+ Ke7-d7 Nf5-d4 Ne1-d3+ Kc1-b1 Kd7-d6
43/79 04:27 794,010k 2,968k +1.36 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-e2 Rg8-d8 Kf2-e1 h7-h5 Ra1-d1 Rd8xd1+ Ke1xd1 Kb5-c5 Kd1-c1 g7-g5 c2-c3 b4-b3 Kc1-b1 Nc6-e5 Ne2-d4 Ne5-d3 Nd4-f5 Nd3-e1 Nf5-d4 Kc5-d6 Ne3-f5+ Kd6-d7 Nf5-e3 Bf7-g8 Kb1-c1 Kd7-d6 Ne3-f5+ Kd6-e5 g2-g3 Bg8-h7 Nd4-c6+ Ke5-e6 Nc6-d4+ Ke6-d7 Nf5-e3 Bh7-g8 Kc1-d2
44/80- 05:03 902,507k 2,973k +1.24 Kb6-a5 Kf2-e3
44/80+ 05:10 923,472k 2,974k +1.24 Kb6-a5
44/80+ 05:18 947,705k 2,971k +1.35 Kb6-a5
44/80 05:29 976,613k 2,967k +1.40 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Nf1-d2 Ka5-b5 Ra1-f1 Bg4-e6 Nd5-f4 Be6-f7 Nf4-e2 Kb5-c5 Nd2-b1 Bf7-e6 Ne2-f4 Be6-g8 c2-c3 b4-b3 h2-h4 Nc6-e5 Ke3-e2 Bg8-f7 Rf1-d1 Bf7-e8 Rd1xd7 Be8xd7 Nb1-a3 Bd7-g4+ Ke2-e3 h7-h6 h4-h5 Ne5-d7 Ke3-f2 Nd7-f6 Kf2-e3 Nf6xh5 Nf4xh5 Bg4xh5
45/86 05:36 996,439k 2,958k +1.39 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 c2-c3 b4-b3 Nf1-d2 Ka5-b5 h2-h4 h7-h6 Ra1-g1 Nc6-e7 Nd5-b4 Ne7-g6 Rg1-h1 Ng6-e5 Nd2-b1 Bg4-e6 Nb1-a3+ Kb5-c5 Nb4-a6+ Kc5-b6 Na6-b4 Ne5-g4+ Ke3-e2 Ng4-f6 Ke2-e3 Rd7-d6 Rh1-e1 Kb6-c5 Re1-f1 Nf6-g4+ Ke3-e2 Rd6-d8 Nb4-a6+ Kc5-b6 Na6-b4 Ng4-e5 Ke2-e3 Ne5-g6 Rf1-h1 Kb6-c5 Nb4-a6+ Kc5-c6 Na6-b4+ Kc6-b6 Na3-b1 Kb6-c5
46/83- 05:57 1,038,041k 2,904k +1.28 Kb6-a5 Kf2-e3
46/83+ 06:11 1,068,847k 2,874k +1.28 Kb6-a5
46/83+ 06:53 1,172,105k 2,837k +1.40 Kb6-a5
46/83 07:39 1,307,161k 2,845k +1.35 Kb6-a5 Nf4-d5 Bc8-e6 Nh5-f4 Be6-f7 Nd5-e3 Ka5-b5 Nf4-e2 Rg8-d8 h2-h4 h7-h5 Ne3-f5 g7-g6 Nf5-e3 Rd8-d7 f3-f4 Bf7-e6 f4-f5 Be6-f7 f5xg6 Bf7xg6 Ne3-d5 Bg6-f7 Nd5-e3 Kb5-a5 Kf2-e1 Rd7-e7 Ke1-d2 Re7xe4 Ra1-f1 a4-a3 b2xa3 c4-c3+ Kd2-d3 Bf7-g6 Ne3-c4+ Ka5-a4 Rf1xf6 Re4-d4+ Kd3-e3 Rd4xc4 Rf6xg6 b4xa3 Ne2-c1 Nc6-b4 Rg6-g8 Rc4-c6 Ke3-f2
47/80+ 09:45 1,679,577k 2,868k +1.44 Kb6-a5
47/90 10:27 1,795,560k 2,862k +1.49 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Nf1-d2 Ka5-b5 h2-h4 Bg4-e6 Nd5-f4 Nc6-d4 Ra1-c1 Be6-g4 Nd2-f3 Nd4-c6 Nf4-d5 Bg4xf3 g2xf3 Rd7-a7 Rc1-d1 Kb5-c5 Ke3-f4 a4-a3 b2xa3 Ra7xa3 Nd5-c7 Ra3-c3 Nc7-e6+ Kc5-b6 Rd1-d2 b4-b3 c2xb3 c4xb3 e4-e5 g7-g6 Ne6-g5 Rc3-c2 Rd2-d1 b3-b2 Rd1-b1 h7-h6 Ng5-f7 Nc6-b4 Kf4-e3 Kb6-c5 e5-e6 Kc5-c4 Nf7-e5+ Kc4-b3 Ne5xg6 Rc2-c1 Rb1xb2+ Kb3xb2 Ke3-d4 Rc1-e1 Ng6-e5 Re1-d1+ Kd4-e4 Nb4-a6 e6-e7 Na6-c7 h4-h5 Kb2-c3 Ke4-f5 Rd1-d6 Ne5-g4 Rd6-e6 e7-e8Q Re6xe8 Ng4xh6 Kc3-d4
48/95 10:46 1,852,738k 2,865k +1.48 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Nf1-d2 Ka5-b5 h2-h4 Bg4-e6 Nd5-f4 Nc6-d4 Ra1-c1 Be6-g4 Nd2-f3 Nd4-c6 Nf4-d5 Bg4xf3 g2xf3 Rd7-a7 Rc1-d1 Kb5-c5 Ke3-f4 a4-a3 b2xa3 Ra7xa3 Nd5-c7 Ra3-c3 Nc7-e6+ Kc5-b6 Rd1-d2 b4-b3 c2xb3 c4xb3 e4-e5 g7-g6 Ne6-g5 Rc3-c2 Rd2-d1 b3-b2 Rd1-b1 h7-h6 Ng5-f7 Nc6-b4 Kf4-e3 Kb6-c5 e5-e6 Kc5-c4 Nf7-d6+
49/103+ 15:59 2,697,916k 2,811k +1.56 Kb6-a5
49/103- 16:08 2,721,311k 2,810k +1.46 Kb6-a5 Kf2-e3
49/103+ 16:34 2,794,488k 2,810k +1.46 Kb6-a5
49/103- 17:33 2,963,135k 2,812k +1.33 Kb6-a5 Kf2-e3
49/103+ 17:38 2,975,368k 2,812k +1.33 Kb6-a5
49/103 18:43 3,163,353k 2,816k +1.54 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Nf1-d2 Ka5-b5 Ra1-f1 Bg4-e6 Nd5-f4 Be6-g8 Nf4-e2 Kb5-c5 Nd2-b1 Bg8-e6 h2-h3 h7-h6 Nb1-d2 Be6-g8 Nd2-b1 Kc5-b6 Rf1-c1 Rd7-a7 Nb1-d2 a4-a3 b2xa3 Ra7xa3+ c2-c3 b4-b3 Rc1-f1 Ra3-a7 g2-g4 Ra7-a8 Nd2-b1 Ra8-a2 Rf1-f8 Bg8-e6 Ne2-d4 Ra2-a1 Rf8-f1 Nc6xd4 Ke3xd4 Kb6-c6 Nb1-d2 Ra1xf1 Nd2xf1 b3-b2
50/87+ 20:00 3,380,843k 2,817k +1.55 Kb6-a5
50/87- 20:01 3,384,357k 2,818k +1.45 Kb6-a5 Kf2-e3
50/91- 20:36 3,490,409k 2,822k +1.14 Kb6-a5 Kf2-e3
50/91+ 21:31 3,645,216k 2,823k +1.14 Kb6-a5
50/91 21:48 3,696,335k 2,825k +1.19 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4xe2 Ke3xe2 Nc6-d4+ Ke2-d2 b4-b3 Ra1-f1 b3xc2 Rf1-f7 a4-a3 b2xa3 Ka5-a4 Nd5-e3 Nd4-f5+ Ne3-d5 Nf5-d6 Nd5-b6+ Ka4-b5 Rf7-d7 Nd6xe4+ Kd2xc2 Rd8-f8 Nb6xc4 Kb5xc4 Rd7-c7+ Ne4-c5 Rc7xg7 Rf8-f2+ Kc2-d1 h7-h5 a3-a4 Rf2-a2 a4-a5 Kc4-d3 Rg7-g3+ Kd3-d4 a5-a6 Nc5-e4 Rg3-f3 Ne4-g5
51/44- 22:52 3,884,396k 2,830k +1.12 Kb6-a5 Kf2-e3
51/77+ 23:06 3,924,881k 2,831k +1.12 Kb6-a5
51/100+ 24:55 4,196,663k 2,806k +1.35 Kb6-a5
51/100 25:27 4,284,658k 2,806k +1.37 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-d1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Ka5-b5 Rd1-a1 Rh3-h4+ Kf4-g3 Rh4-h5 Nd5-f6 Rh5xg5+ Kg3-f3 Rg5-e5 Ra1-g1 Re5-e7 Rg1-g5+ Kb5-a6 Kf3-e3 a4-a3 b2xa3 b4xa3 Rg5-g1 Ka6-b6 Rg1-b1+ Kb6-c5 Ne2-c3 Re7-a7 Rb1-b5+ Kc5-d6 Rb5-b6
52/90+ 26:23 4,450,021k 2,811k +1.40 Kb6-a5
52/90- 28:36 4,838,879k 2,820k +1.32 Kb6-a5 Kf2-e3
52/90- 29:05 4,924,287k 2,821k +1.21 Kb6-a5 Kf2-e3
52/90+ 29:18 4,959,884k 2,821k +1.21 Kb6-a5
52/90+ 29:43 5,038,408k 2,825k +1.40 Kb6-a5
52/90 34:08 5,738,116k 2,802k +1.51 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Nf1-d2 Ka5-b5 Ra1-c1 Bg4-e6 Nd5-f4 Be6-f7 h2-h3 Rd7-a7 Nf4-e2 a4-a3 b2xa3 Ra7xa3+ c2-c3 b4-b3 Rc1-f1 Ra3-a7 Nd2-f3 Kb5-c5 Nf3-g5 Bf7-g8 Ng5-f3 Bg8-e6 Nf3-g5 Be6-c8 Ng5xh7 Ra7-a2 Nh7-g5 Nc6-a7 e4-e5 Na7-b5 e5-e6 Kc5-d6 Ng5-e4+ Kd6xe6 Ne2-d4+ Nb5xd4 Ke3xd4 Ra2xg2
53/41+ 34:49 5,853,229k 2,801k +1.51 Kb6-a5
53/89 35:42 6,002,302k 2,801k +1.52 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-e1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Ka5-b5 Re1-a1 Rh3-h5 Kf4-f3 Rh5xg5 Nd5-f6 Rg5-e5 Ra1-g1 Kb5-a6 Kf3-e3 Re5-a5 Nf6-d5 a4-a3 b2xa3 Ra5xa3+ Ke3-f4 Ra3-h3 Kf4-g4 Rh3-h5 Kg4-f3 Rh5-e5 Rg1-d1 Ka6-b5 Nd5-f6 Re5-e6 Nf6-h7 Re6-e8 Kf3-e3
54/87+ 41:30 6,986,937k 2,805k +1.60 Kb6-a5
54/87- 41:36 7,004,371k 2,805k +1.49 Kb6-a5 Kf2-e3
54/87+ 41:46 7,030,717k 2,805k +1.49 Kb6-a5
54/92 45:20 7,570,729k 2,783k +1.61 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-f1 Rd8-d7 Ra1-c1 Ka5-b5 Nf1-d2 Bg4-e6 Nd5-f4 Be6-f7 h2-h3 Rd7-a7 Nf4-e2 a4-a3 b2xa3 Ra7xa3+ c2-c3 b4-b3 Rc1-f1 Bf7-e6 Ne2-f4 Be6-d7 Nf4-e2 Nc6-e5 Rf1-d1 Ra3-a2 Ke3-d4 Ne5-c6+ Kd4-e3 Bd7-e6 Nd2-f3 Kb5-c5 Ne2-f4 Be6-g8 Nf4-e2 Bg8-f7 g2-g4 Kc5-b6 Rd1-b1 Bf7-e6 Ne2-f4 Be6-c8 Nf4-e2 Kb6-c5 Rb1-d1 Bc8-a6 Ne2-c1
55/98 49:52 8,319,298k 2,780k +1.52 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-f1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Ka5-b5 Rf1-a1 Rh3-h5 Kf4-f3 Kb5-a5 Ra1-d1 Rh5xg5 Kf3-e3 Bf7xd5 e4xd5 Nc6-b8 Ne2-d4 Nb8-d7 Nd4-f3 Rg5-g2 Nf3-d4 Rg2-g4 d5-d6 Ka5-b6 Nd4-f3 g6-g5 Rd1-d5 Nd7-f6 Rd5-d1 Rg4-e4+ Ke3-f2 g5-g4 d6-d7 Nf6xd7 Nf3-d2 Re4-f4+ Kf2-e3 Rf4-f7 Nd2xc4+ Kb6-c5 Nc4-d2 Nd7-f6 Rd1-a1 Nf6-d5+ Ke3-d3 g4-g3 Ra1xa4
56/79 52:45 8,761,252k 2,768k +1.55 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-f1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Ka5-b5 Rf1-a1 Rh3-h4+ Kf4-g3 Rh4-h5 Kg3-f2 Kb5-a5 Ra1-d1 Rh5xg5 Kf2-e3 Bf7xd5 e4xd5 Nc6-b8 Ne2-d4 Nb8-d7 Nd4-f3 Rg5-g2 Nf3-d4 Rg2-g4 d5-d6 Ka5-b6 Nd4-f3 g6-g5 Ke3-f2 Kb6-c5 Rd1-a1 Kc5-b5 Ra1-d1 Kb5-c6 Rd1-a1 b4-b3 c2xb3 c4xb3 Ra1-d1 Kc6-c5 Kf2-e3 Rg4-g2 Nf3-d2
57/91 1:08:43 11,408,558k 2,766k +1.65 Kb6-a5 Nf4-d5 Bc8-e6 Nd5-e3 Be6-f7 Nh5-f4 Ka5-b5 h2-h4 h7-h5 Ra1-d1 Rg8-a8 g2-g4 h5xg4 f3xg4 Ra8-d8 Ne3-d5 g7-g5 h4xg5 f6xg5 Nf4-h3 Rd8-g8 Kf2-g3 Rg8-g7 Nd5-e3 Bf7-g8 Nh3-g1 Rg7-a7 Kg3-f2 a4-a3 b2xa3 b4xa3 Ng1-e2 a3-a2 Rd1-a1 Kb5-b4 Ne3-d1 Kb4-c5 c2-c3 Nc6-e5 Ne2-d4 Ne5xg4+ Kf2-g3 Ng4-f6 Kg3-f3 Ra7-a6 Nd4-c2 Bg8-h7 Nd1-f2 g5-g4+ Kf3-f4 g4-g3 Nc2-b4
58/102 1:15:12 12,406,177k 2,750k +1.65 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-d1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f2 Nc6-e5 Kf2-g2 Rh3-h4 Nd5-f6 Rh4-h8 Kg2-g3 b4-b3 Rd1-d2 Bf7-e6 Nf6-d5 Rh8-h4 Nd5-c3 b3xc2 Rd2xc2 Rh4-h3+ Kg3-g2 Ne5-d3 Rc2-d2 Rh3-e3 Ne2-d4 a4-a3 Nd4xe6 a3xb2 Kg2-h2 Re3-e1 Ne6-d4 Ka5-b4 Rd2-c2 b2-b1Q Nc3xb1 Re1xb1 Kh2-g3 c4-c3 Rc2-a2 Kb4-c5 Nd4-e2
59/99 1:36:49 15,876,334k 2,733k +1.73 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-d1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Ka5-b5 Rd1-a1 Rh3-h5 Nd5-c7+ Kb5-a5 Nc7-d5 Rh5-h2 Ra1-e1 Ka5-b5 Kf4-g3 Rh2-h5 Kg3-f4 Rh5-h8 Re1-d1 Kb5-c5 Nd5-f6 Bf7-e6 Kf4-g3 Rh8-d8 Rd1-e1 Rd8-d2 Ne2-f4 Be6-c8 e4-e5 Rd2xc2 Nf6-e4+ Kc5-b6 Nf4-d5+ Kb6-b5 Ne4-d6+ Kb5-c5 Re1-d1 Rc2xb2 Nd6-e4+ Kc5-b5 Ne4-d6+ Kb5-a6 Nd6xc8 c4-c3 e5-e6 a4-a3 Rd1-a1 c3-c2 Nd5xb4+ Nc6xb4 Ra1xa3+ Ka6-b7 Ra3-c3 Rb2-b3 Nc8-d6+ Kb7-a6
60/92- 1:38:16 16,089,886k 2,729k +1.55 Kb6-a5 Kf2-e3
60/92+ 1:40:01 16,385,482k 2,730k +1.55 Kb6-a5
60/96 1:43:42 17,004,884k 2,733k +1.61 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-d1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Bf7-g8 Nd5-f6 Rh3-h2 Kf4-e3 Bg8-e6 Ne2-f4 Be6-f7 Nf4-e2 Rh2-h3+ Ke3-f2 b4-b3 c2xb3 Rh3-h2+ Kf2-e3 c4xb3 Nf6-g4 Rh2-h3+ Ke3-f4 Bf7-c4 Rd1-d2 Rh3-h4 Kf4-g3 Rh4-h1 Ne2-c3 Rh1-c1 Nc3-d5 Bc4-b5 Nd5-e3 Ka5-b4 Kg3-f4 a4-a3 b2xa3+ Kb4-c3 Rd2-d6 Nc6-d4 Ne3-d5+ Kc3-b2 Ng4-e3 Kb2xa3 Rd6-b6
61/86+ 1:50:54 18,162,586k 2,729k +1.71 Kb6-a5
61/88- 1:51:46 18,310,857k 2,730k +1.59 Kb6-a5 Kf2-e3
61/88+ 1:57:56 19,314,613k 2,729k +1.59 Kb6-a5
61/102 2:01:34 19,915,431k 2,730k +1.65 Kb6-a5 Kf2-e3 f6-f5 Nf4-d5 f5xe4 f3xe4 Bc8-g4 Nh5-g3 Rg8-d8 Ng3-e2 Bg4-e6 Ne2-f4 Be6-f7 h2-h4 g7-g6 g2-g4 h7-h6 g4-g5 h6xg5 h4xg5 Rd8-h8 Ra1-c1 Rh8-h2 Nf4-e2 Rh2-h3+ Ke3-f4 Ka5-b5 Rc1-a1 Bf7-g8 Nd5-c7+ Kb5-a5 Nc7-d5 Rh3-h2 Ra1-e1 Rh2-h4+ Kf4-e3 Rh4-h3+ Ke3-f4 Ka5-b5 Re1-a1 Bg8-f7 Nd5-c7+ Kb5-a5 Ra1-d1 Ka5-b6 Nc7-d5+ Kb6-c5 Nd5-f6 Bf7-e6 e4-e5 Rh3-h2 Kf4-e3 Be6-f5 Rd1-d5+ Kc5-b6 Rd5-d6 Kb6-b7 e5-e6 c4-c3 b2xc3 Nc6-a5

stockfish1.9.1 needed more than an hour to avoid 28.Ra1 earlier in my analysis and here is the end of that analysis

38- 54:52 43,927,327k 13,340k -0.08 Rd1-a1 Kb6-b5 Kf2-e3 Bc8-d7 Nf4-d5 Bd7-e8 Nh5-f4 Be8-f7 h2-h4 Rg8-b8 Nd5-c7+ Kb5-a5 Nc7-d5
38 1:12:17 59,009,581k 13,603k 0.00 Nf4-d5+ Kb6-c5 Rd1-a1 Bc8-e6 Ra1xa4 Be6xd5 e4xd5 Kc5xd5 Nh5-f4+ Kd5-e5 Ra4-a6 Rg8-c8 Nf4-e2 Ke5-d5 Ne2-f4+ Kd5-e5
39 1:51:36 92,329,953k 13,787k 0.00 Nf4-d5+ Kb6-c5 Rd1-a1 Bc8-e6 Ra1xa4 Be6xd5 e4xd5 Kc5xd5 Nh5-f4+ Kd5-e5 Ra4-a6 Rg8-c8 Nf4-e2 Ke5-d5 Ne2-f4+ Kd5-e5
40 2:59:22 149,827,873k 13,921k 0.00 Nf4-d5+ Kb6-c5 Rd1-a1 Bc8-e6 Ra1xa4 Be6xd5 e4xd5 Kc5xd5 Nh5-f4+ Kd5-e5 Ra4-a6 Rg8-c8 Nf4-e2 Ke5-d5 Ne2-f4+ Kd5-e5
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Leto
Posts: 2083
Joined: Thu May 04, 2006 3:40 am
Location: Dune

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

Post by Leto »

Uri Blass wrote: ↑Sat Nov 15, 2025 8:15 am
Leto wrote: ↑Sat Nov 15, 2025 4:46 am Here's an article detailing Stockfish's search algorithms: https://deepwiki.com/official-stockfish ... hatgpt.com

Note that brute force is not mentioned anywhere. I asked the AI in that page if Stockfish uses brute force techniques and here's what it said: "No, Stockfish does not use brute force search. Instead, it implements alpha-beta search with extensive pruning and optimization techniques to avoid examining most positions."
alpha beta with reduction and extensions and pruning is supposed ro always find the right move with enough time.
I think there is only one exception that is null move pruning.

My conclusion is that the losing move in the game was probably 28.Ra1 and that even 2400:1 time handicap is not enough and probably stockfish1.9.1 needs some hours per move only to draw against stockfish17.1 with 1/4 second per move.

If we talk about winning then I doubt stockfish17.1 can win with some hours per move against stockfish17.1 with 1/4 second per move and I will not surprised if it is going to be a draw.
From my understanding Stockfish 1 had null-move pruning, futility pruning, reverse futility, quiescence futility, late move pruning (LMP), and razoring, which could all inadvertently remove the correct move from the basket. Once that correct move is removed from the basket Stockfish can search the basket for as long it wants but it'll never find the correct move.
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Uri Blass
Posts: 10959
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

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

Post by Uri Blass »

Leto wrote: ↑Sat Nov 15, 2025 7:55 pm
Uri Blass wrote: ↑Sat Nov 15, 2025 8:15 am
Leto wrote: ↑Sat Nov 15, 2025 4:46 am Here's an article detailing Stockfish's search algorithms: https://deepwiki.com/official-stockfish ... hatgpt.com

Note that brute force is not mentioned anywhere. I asked the AI in that page if Stockfish uses brute force techniques and here's what it said: "No, Stockfish does not use brute force search. Instead, it implements alpha-beta search with extensive pruning and optimization techniques to avoid examining most positions."
alpha beta with reduction and extensions and pruning is supposed ro always find the right move with enough time.
I think there is only one exception that is null move pruning.

My conclusion is that the losing move in the game was probably 28.Ra1 and that even 2400:1 time handicap is not enough and probably stockfish1.9.1 needs some hours per move only to draw against stockfish17.1 with 1/4 second per move.

If we talk about winning then I doubt stockfish17.1 can win with some hours per move against stockfish17.1 with 1/4 second per move and I will not surprised if it is going to be a draw.
From my understanding Stockfish 1 had null-move pruning, futility pruning, reverse futility, quiescence futility, late move pruning (LMP), and razoring, which could all inadvertently remove the correct move from the basket. Once that correct move is removed from the basket Stockfish can search the basket for as long it wants but it'll never find the correct move.
From my understanding only null move pruning may totally remove the correct move from the basket in all iterations.

Rest of the things may mean that you remove the correct move from the basket only when the remaining depth is small but when the remaining depth is big enough you search every move so engines may need to search to a big depth to see some short lines but if they search deep enough they finally see it.

Of course in theory it may be possible that you practically never find the right move because stockfish is not programmed to do infinite number of iterations and iteration 128 that may be the last iteration can search the relevant line only 20 plies forward that is not enough but I believe that practically it is rare that it happens in games and I guess stockfish1.9.1 can draw most correspondence games at 24 hours per move against modern engines.
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