Dev Builds » 20200902-1419

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 08:39:10 1963732 3349 2511 40 798 +328.57 +/- 12.05
ncm-et-4 08:34:19 1969462 3328 2493 37 798 +328.68 +/- 12.05
ncm-et-9 08:38:25 1966324 3353 2507 41 805 +326.77 +/- 12.0
ncm-et-10 08:30:52 1962821 3286 2448 34 804 +326.14 +/- 12.0
ncm-et-13 08:36:55 1960354 3333 2467 39 827 +321.54 +/- 11.83
ncm-et-15 08:39:02 1969429 3351 2491 37 823 +324.4 +/- 11.86
20000 14917 228 4855 +326.01 +/- 4.88

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
137053 ncm-et-10 2020-09-03 03:01 00:45:15 1961391 286 215 2 69 +333.91 +/- 41.36
137052 ncm-et-4 2020-09-03 02:56 00:50:58 1969402 328 247 5 76 +328.55 +/- 39.49
137051 ncm-et-13 2020-09-03 02:54 00:52:28 1960769 333 247 2 84 +326.98 +/- 37.34
137050 ncm-et-9 2020-09-03 02:53 00:53:35 1965385 353 270 4 79 +340.87 +/- 38.71
137049 ncm-et-3 2020-09-03 02:53 00:53:35 1965379 349 244 4 101 +293.08 +/- 33.98
137048 ncm-et-15 2020-09-03 02:52 00:54:40 1971575 351 264 6 81 +326.45 +/- 38.23
137047 ncm-et-10 2020-09-03 01:43 01:16:51 1967849 500 385 4 111 +347.77 +/- 32.52
137046 ncm-et-13 2020-09-03 01:38 01:15:32 1960614 500 360 6 134 +306.84 +/- 29.51
137045 ncm-et-4 2020-09-03 01:37 01:17:45 1971266 500 364 4 132 +315.35 +/- 29.68
137044 ncm-et-9 2020-09-03 01:34 01:17:40 1965713 500 375 2 123 +334.88 +/- 30.73
137043 ncm-et-15 2020-09-03 01:34 01:16:56 1969094 500 359 4 137 +308.24 +/- 29.1
137042 ncm-et-3 2020-09-03 01:34 01:18:27 1961381 500 369 7 124 +318.25 +/- 30.75
137041 ncm-et-10 2020-09-03 00:23 01:19:03 1958940 500 358 5 137 +305.45 +/- 29.13
137040 ncm-et-4 2020-09-03 00:19 01:16:37 1971879 500 377 1 122 +339.63 +/- 30.81
137039 ncm-et-13 2020-09-03 00:19 01:17:40 1962767 500 375 5 120 +330.23 +/- 31.24
137038 ncm-et-9 2020-09-03 00:17 01:16:17 1964181 500 360 6 134 +306.84 +/- 29.51
137037 ncm-et-15 2020-09-03 00:16 01:16:58 1964470 500 368 7 125 +316.8 +/- 30.63
137036 ncm-et-3 2020-09-03 00:15 01:17:32 1965996 500 375 10 115 +322.67 +/- 31.98
137035 ncm-et-10 2020-09-02 23:05 01:16:49 1963082 500 378 10 112 +327.18 +/- 32.41
137034 ncm-et-4 2020-09-02 23:02 01:16:24 1966626 500 375 7 118 +327.18 +/- 31.56
137033 ncm-et-13 2020-09-02 23:01 01:16:35 1961841 500 361 4 135 +311.06 +/- 29.33
137032 ncm-et-9 2020-09-02 22:58 01:17:53 1965536 500 381 4 115 +341.24 +/- 31.92
137031 ncm-et-15 2020-09-02 22:57 01:17:39 1976225 500 366 3 131 +319.72 +/- 29.76
137030 ncm-et-3 2020-09-02 22:56 01:17:52 1963224 500 388 7 105 +347.77 +/- 33.51
137029 ncm-et-10 2020-09-02 21:48 01:16:41 1961236 500 372 6 122 +324.17 +/- 31.0
137028 ncm-et-4 2020-09-02 21:44 01:16:40 1970090 500 377 8 115 +328.7 +/- 31.98
137027 ncm-et-13 2020-09-02 21:44 01:16:27 1961841 500 368 8 124 +315.35 +/- 30.77
137026 ncm-et-15 2020-09-02 21:41 01:15:44 1971098 500 390 4 106 +356.21 +/- 33.31
137025 ncm-et-9 2020-09-02 21:39 01:18:26 1965865 500 367 7 126 +315.35 +/- 30.5
137024 ncm-et-3 2020-09-02 21:36 01:18:52 1962917 500 378 3 119 +338.04 +/- 31.32
137023 ncm-et-10 2020-09-02 20:30 01:16:58 1968778 500 361 5 134 +309.64 +/- 29.48
137022 ncm-et-4 2020-09-02 20:25 01:18:17 1968791 500 383 7 110 +339.63 +/- 32.72
137021 ncm-et-13 2020-09-02 20:24 01:18:37 1957704 500 381 8 111 +334.88 +/- 32.57
137020 ncm-et-9 2020-09-02 20:21 01:16:56 1971885 500 376 13 111 +319.72 +/- 32.5
137019 ncm-et-15 2020-09-02 20:20 01:19:23 1967240 500 358 10 132 +298.62 +/- 29.8
137018 ncm-et-3 2020-09-02 20:18 01:16:45 1966613 500 370 6 124 +321.19 +/- 30.74
137017 ncm-et-10 2020-09-02 19:09 01:19:15 1958474 500 379 2 119 +341.24 +/- 31.27
137016 ncm-et-4 2020-09-02 19:06 01:17:38 1968183 500 370 5 125 +322.67 +/- 30.58
137015 ncm-et-13 2020-09-02 19:03 01:19:36 1956945 500 375 6 119 +328.7 +/- 31.4
137014 ncm-et-9 2020-09-02 19:02 01:17:38 1965709 500 378 5 117 +334.88 +/- 31.66
137013 ncm-et-15 2020-09-02 19:01 01:17:42 1966305 500 386 3 111 +351.11 +/- 32.49
137012 ncm-et-3 2020-09-02 19:01 01:16:07 1960615 500 387 3 110 +352.8 +/- 32.64

Commit

Commit ID c306d838697011da0a960758dde3f7ede6849060
Author Joost VandeVondele
Date 2020-09-02 14:19:30 UTC
Stockfish 12 Official release version of Stockfish 12 Bench: 3624569 ----------------------- It is our pleasure to release Stockfish 12 to users world-wide Downloads will be freely available at https://stockfishchess.org/download/ This version 12 of Stockfish plays significantly stronger than any of its predecessors. In a match against Stockfish 11, Stockfish 12 will typically win at least ten times more game pairs than it loses. This jump in strength, visible in regular progression tests during development[1], results from the introduction of an efficiently updatable neural network (NNUE) for the evaluation in Stockfish[2], and associated tuning of the engine as a whole. The concept of the NNUE evaluation was first introduced in shogi, and ported to Stockfish afterward. Stockfish remains a CPU-only engine, since the NNUE networks can be very efficiently evaluated on CPUs. The recommended parameters of the NNUE network are embedded in distributed binaries, and Stockfish will use NNUE by default. Both the NNUE and the classical evaluations are available, and can be used to assign values to positions that are later used in alpha-beta (PVS) search to find the best move. The classical evaluation computes this value as a function of various chess concepts, handcrafted by experts, tested and tuned using fishtest. The NNUE evaluation computes this value with a neural network based on basic inputs. The network is optimized and trained on the evaluations of millions of positions. The Stockfish project builds on a thriving community of enthusiasts that contribute their expertise, time, and resources to build a free and open source chess engine that is robust, widely available, and very strong. We invite chess fans to join the fishtest testing framework and programmers to contribute on github[3]. Stay safe and enjoy chess! The Stockfish team [1] https://github.com/glinscott/fishtest/wiki/Regression-Tests [2] https://github.com/official-stockfish/Stockfish/commit/84f3e867903f62480c33243dd0ecbffd342796fc [3] https://stockfishchess.org/get-involved/
Copyright 2011–2024 Next Chess Move LLC