Dev Builds » 20210218-2114

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 08:23:42 1958539 3331 2646 19 666 +371.01 +/- 13.19
ncm-et-4 08:23:22 1964748 3357 2632 17 708 +362.29 +/- 12.78
ncm-et-9 08:23:52 1955851 3324 2655 20 649 +374.78 +/- 13.37
ncm-et-10 08:23:33 1959644 3347 2682 21 644 +376.96 +/- 13.42
ncm-et-13 08:23:34 1963652 3345 2683 14 648 +379.69 +/- 13.37
ncm-et-15 08:23:41 1951056 3296 2637 11 648 +378.56 +/- 13.36
20000 15935 102 3963 +373.78 +/- 5.4

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
144734 ncm-et-15 2021-02-20 01:59 00:45:25 1953140 296 237 0 59 +382.34 +/- 44.77
144733 ncm-et-9 2021-02-20 01:55 00:49:15 1958013 324 264 3 57 +387.13 +/- 45.87
144732 ncm-et-3 2021-02-20 01:53 00:51:09 1958800 331 247 4 80 +325.77 +/- 38.43
144731 ncm-et-10 2021-02-20 01:51 00:52:46 1961074 347 267 2 78 +349.18 +/- 38.87
144730 ncm-et-4 2021-02-20 01:51 00:52:44 1966025 357 279 1 77 +362.06 +/- 39.08
144729 ncm-et-13 2021-02-20 01:50 00:53:32 1956483 345 277 2 66 +378.92 +/- 42.46
144728 ncm-et-15 2021-02-20 00:42 01:15:36 1950547 500 403 2 95 +383.64 +/- 35.21
144727 ncm-et-9 2021-02-20 00:39 01:15:21 1957094 500 395 4 101 +364.98 +/- 34.16
144726 ncm-et-3 2021-02-20 00:39 01:13:41 1963845 500 397 2 101 +372.25 +/- 34.1
144725 ncm-et-4 2021-02-20 00:36 01:14:26 1972805 500 394 3 103 +364.98 +/- 33.79
144724 ncm-et-10 2021-02-20 00:35 01:15:08 1957261 500 403 4 93 +379.78 +/- 35.66
144723 ncm-et-13 2021-02-20 00:35 01:14:52 1963380 500 390 3 107 +357.94 +/- 33.12
144722 ncm-et-15 2021-02-19 23:26 01:16:01 1946455 500 395 1 104 +370.41 +/- 33.52
144721 ncm-et-3 2021-02-19 23:23 01:15:01 1960004 500 388 4 108 +352.8 +/- 32.99
144720 ncm-et-9 2021-02-19 23:22 01:16:26 1961271 500 393 2 105 +364.98 +/- 33.41
144719 ncm-et-4 2021-02-19 23:21 01:14:19 1971722 500 398 1 101 +375.98 +/- 34.04
144718 ncm-et-10 2021-02-19 23:20 01:14:54 1962303 500 393 4 103 +361.43 +/- 33.81
144717 ncm-et-13 2021-02-19 23:18 01:15:45 1968777 500 405 1 94 +389.56 +/- 35.35
144716 ncm-et-15 2021-02-19 22:09 01:15:56 1947382 500 398 2 100 +374.11 +/- 34.27
144715 ncm-et-4 2021-02-19 22:06 01:14:53 1959867 500 389 3 108 +356.21 +/- 32.96
144714 ncm-et-9 2021-02-19 22:05 01:16:10 1952369 500 399 5 96 +370.41 +/- 35.09
144713 ncm-et-3 2021-02-19 22:05 01:17:30 1944597 500 393 4 103 +361.43 +/- 33.81
144712 ncm-et-10 2021-02-19 22:03 01:15:53 1956176 500 401 2 97 +379.78 +/- 34.83
144711 ncm-et-13 2021-02-19 22:03 01:15:09 1966462 500 402 3 95 +379.78 +/- 35.24
144710 ncm-et-15 2021-02-19 20:51 01:17:27 1950558 500 390 1 109 +361.43 +/- 32.7
144709 ncm-et-4 2021-02-19 20:49 01:15:48 1957568 500 381 5 114 +339.63 +/- 32.09
144708 ncm-et-3 2021-02-19 20:48 01:15:55 1957921 500 421 2 77 +421.93 +/- 39.29
144707 ncm-et-10 2021-02-19 20:48 01:14:49 1959546 500 406 2 92 +389.56 +/- 35.8
144706 ncm-et-9 2021-02-19 20:48 01:16:47 1946790 500 400 1 99 +379.78 +/- 34.4
144705 ncm-et-13 2021-02-19 20:47 01:14:57 1960771 500 406 2 92 +389.56 +/- 35.8
144704 ncm-et-15 2021-02-19 19:34 01:16:17 1954805 500 398 3 99 +372.25 +/- 34.49
144703 ncm-et-4 2021-02-19 19:34 01:14:44 1967238 500 391 1 108 +363.2 +/- 32.86
144702 ncm-et-3 2021-02-19 19:32 01:15:04 1961446 500 392 1 107 +364.98 +/- 33.02
144701 ncm-et-13 2021-02-19 19:32 01:14:52 1966623 500 405 1 94 +389.56 +/- 35.35
144700 ncm-et-10 2021-02-19 19:31 01:15:47 1952683 500 406 2 92 +389.56 +/- 35.8
144699 ncm-et-9 2021-02-19 19:31 01:15:44 1955270 500 397 2 101 +372.25 +/- 34.1
144698 ncm-et-4 2021-02-19 18:17 01:16:28 1958012 500 400 3 97 +375.98 +/- 34.86
144697 ncm-et-15 2021-02-19 18:17 01:16:59 1954508 500 416 2 82 +410.58 +/- 38.02
144696 ncm-et-10 2021-02-19 18:17 01:14:16 1968470 500 406 5 89 +383.64 +/- 36.48
144695 ncm-et-3 2021-02-19 18:16 01:15:22 1963161 500 408 2 90 +393.6 +/- 36.22
144694 ncm-et-13 2021-02-19 18:16 01:14:27 1963074 500 398 2 100 +374.11 +/- 34.27
144693 ncm-et-9 2021-02-19 18:16 01:14:09 1960154 500 407 3 90 +389.56 +/- 36.25

Commit

Commit ID 3597f1942ec6f2cfbd50b905683739b0900ff5dd
Author Joost VandeVondele
Date 2021-02-18 21:14:55 UTC
Stockfish 13 Official release version of Stockfish 13 Bench: 3766422 ----- It is our pleasure to release Stockfish 13 to chess fans worldwide. As usual, downloads are freely available at https://stockfishchess.org The Stockfish project builds on a thriving community of enthusiasts who contribute their expertise, time, and resources to build a free and open-source chess engine that is robust, widely available, and very strong. We would like to thank them all! The good news first: from now on, our users can expect more frequent high-quality releases of Stockfish! Sadly, this decision has been triggered by the start of sales of the Fat Fritz 2 engine by ChessBase, which is a copy of a very recent development version of Stockfish with minor modifications. We refer to our statement on Fat Fritz 2[1] and a community blog[2] for further information. This version of Stockfish is significantly stronger than any of its predecessors. Stockfish 13 outperforms Stockfish 12 by at least 35 Elo[3]. When playing against a one-year-old Stockfish, it wins 60 times more game pairs than it loses[4]. This release features an NNUE network retrained on billions of positions, much faster network evaluation code, and significantly improved search heuristics, as well as additional evaluation tweaks. In the course of its development, this version has won the superfinals of the TCEC Season 19 and TCEC Season 20. Going forward, the Leela Chess Zero and Stockfish teams will join forces to demonstrate our commitment to open source chess engines and training tools, and open data. We are convinced that our free and open-source chess engines serve the chess community very well. Stay safe and enjoy chess! The Stockfish team [1] https://blog.stockfishchess.org/post/643239805544792064/statement-on-fat-fritz-2 [2] https://lichess.org/blog/YCvy7xMAACIA8007/fat-fritz-2-is-a-rip-off [3] https://tests.stockfishchess.org/tests/view/602bcccf7f517a561bc49b11 [4] https://tests.stockfishchess.org/tests/view/600fbb9c735dd7f0f0352d59
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