Dev Builds » 20211028-0538

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 11:28:22 585095 6684 1207 2161 3316 -49.93 ± 3.95 13 1290 1682 352 5 -101.11 ± 8.27
ncm-dbt-02 11:28:25 586361 6632 1193 2110 3329 -48.35 ± 4.02 18 1265 1652 378 3 -96.95 ± 8.35
ncm-dbt-03 11:28:34 587235 6684 1266 2217 3201 -49.77 ± 4.03 22 1290 1653 371 6 -99.87 ± 8.35
20000 3666 6488 9846 -49.35 ± 2.31 53 3845 4987 1101 14 -99.31 ± 4.81

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
370547 ncm-dbt-02 586943 132 23 37 72 -36.99 ± 29.14 0 23 35 7 1 -80.37 ± 57.76
370546 ncm-dbt-03 586223 184 36 67 81 -59.09 ± 27.14 1 43 34 14 0 -117.59 ± 58.22
370545 ncm-dbt-01 585801 184 38 61 85 -43.66 ± 25.89 0 37 42 12 1 -92.78 ± 53.02
370544 ncm-dbt-02 585042 500 86 166 248 -56.07 ± 14.29 1 101 126 21 1 -115.23 ± 30.2
370543 ncm-dbt-03 588089 500 87 163 250 -53.22 ± 14.29 2 96 128 24 0 -106.01 ± 29.96
370542 ncm-dbt-01 583824 500 82 151 267 -48.25 ± 14.96 3 92 127 27 1 -95.44 ± 30.17
370541 ncm-dbt-02 587792 500 88 167 245 -55.36 ± 15.19 2 105 113 30 0 -110.6 ± 32.15
370540 ncm-dbt-03 588345 500 99 162 239 -44.01 ± 13.5 0 87 139 24 0 -89.48 ± 28.44
370539 ncm-dbt-01 584411 500 87 163 250 -53.22 ± 14.82 1 103 117 29 0 -107.54 ± 31.57
370538 ncm-dbt-02 586562 500 109 155 236 -32.05 ± 15.4 1 87 119 43 0 -63.23 ± 31.3
370537 ncm-dbt-03 586308 500 95 155 250 -41.9 ± 14.21 0 89 133 27 1 -86.52 ± 29.35
370536 ncm-dbt-01 585337 500 95 171 234 -53.22 ± 14.82 1 103 117 29 0 -107.54 ± 31.57
370535 ncm-dbt-02 589283 500 77 143 280 -46.13 ± 14.72 2 92 126 30 0 -90.97 ± 30.33
370534 ncm-dbt-03 587070 500 93 166 241 -51.09 ± 14.85 2 98 121 29 0 -101.46 ± 31.01
370533 ncm-dbt-01 584243 500 81 152 267 -49.67 ± 14.51 0 100 121 29 0 -101.46 ± 31.01
370532 ncm-dbt-02 586858 500 92 176 232 -58.93 ± 15.6 5 103 113 29 0 -113.68 ± 32.15
370531 ncm-dbt-03 585801 500 101 160 239 -41.19 ± 14.7 0 92 126 31 1 -85.04 ± 30.35
370530 ncm-dbt-01 586646 500 90 166 244 -53.22 ± 14.56 0 104 118 28 0 -109.07 ± 31.43
370529 ncm-dbt-02 587240 500 85 158 257 -51.09 ± 14.18 0 99 125 26 0 -104.49 ± 30.42
370528 ncm-dbt-03 588686 500 80 163 257 -58.21 ± 14.39 1 105 120 24 0 -118.33 ± 31.1
370527 ncm-dbt-01 584034 500 94 171 235 -53.93 ± 13.91 2 94 133 21 0 -107.54 ± 29.18
370526 ncm-dbt-02 581985 500 89 161 250 -50.38 ± 14.41 1 97 125 27 0 -101.46 ± 30.43
370525 ncm-dbt-03 585970 500 90 176 234 -60.36 ± 16.41 5 109 105 29 2 -119.89 ± 33.31
370524 ncm-dbt-01 586520 500 88 162 250 -51.8 ± 14.35 1 98 125 26 0 -104.49 ± 30.42
370523 ncm-dbt-02 585253 500 89 156 255 -46.84 ± 13.95 2 87 137 24 0 -92.46 ± 28.72
370522 ncm-dbt-03 589027 500 102 157 241 -38.37 ± 15.17 1 91 120 38 0 -76.25 ± 31.18
370521 ncm-dbt-01 582527 500 83 159 258 -53.22 ± 14.15 1 98 127 24 0 -107.54 ± 30.1
370520 ncm-dbt-02 585928 500 108 163 229 -38.37 ± 14.92 1 89 124 36 0 -76.25 ± 30.64
370519 ncm-dbt-03 586985 500 115 178 207 -44.01 ± 14.99 2 90 129 27 2 -89.48 ± 29.91
370518 ncm-dbt-01 585126 500 99 167 234 -47.54 ± 13.13 2 82 148 18 0 -93.95 ± 26.99
370517 ncm-dbt-02 585885 500 84 164 252 -56.07 ± 13.59 1 97 133 19 0 -113.68 ± 29.12
370516 ncm-dbt-01 585590 500 91 149 260 -40.48 ± 14.78 2 87 128 33 0 -79.17 ± 30.09
370515 ncm-dbt-03 588430 500 96 168 236 -50.38 ± 14.55 1 98 123 28 0 -101.46 ± 30.72
370514 ncm-dbt-02 585632 500 100 164 236 -44.72 ± 14.77 1 93 126 29 1 -90.97 ± 30.33
370513 ncm-dbt-01 585379 500 94 155 251 -42.6 ± 14.38 0 91 130 28 1 -88.0 ± 29.77
370512 ncm-dbt-03 586308 500 85 165 250 -56.07 ± 14.01 3 94 133 20 0 -110.6 ± 29.15
370511 ncm-dbt-02 586223 500 79 144 277 -45.42 ± 14.01 0 92 131 27 0 -92.46 ± 29.6
370510 ncm-dbt-01 585464 500 88 163 249 -52.51 ± 14.11 0 98 131 19 2 -110.6 ± 29.47
370509 ncm-dbt-03 587070 500 96 166 238 -48.96 ± 15.25 4 93 122 31 0 -93.95 ± 30.89
370508 ncm-dbt-02 588430 500 84 156 260 -50.38 ± 14.81 1 100 119 30 0 -101.46 ± 31.3
370507 ncm-dbt-03 586985 500 91 171 238 -56.07 ± 14.29 0 105 120 25 0 -115.23 ± 31.11
370506 ncm-dbt-01 586435 500 97 171 232 -51.8 ± 14.62 0 103 118 29 0 -106.01 ± 31.43

Commit

Commit ID 7262fd5d14810b7b495b5038e348a448fda1bcc3
Author Joost VandeVondele
Date 2021-10-28 05:38:19 UTC
Stockfish 14.1 Official release version of Stockfish 14.1 Bench: 6334068 --- Today, we have the pleasure to announce Stockfish 14.1. As usual, downloads will be freely available at stockfishchess.org/download [1]. With Stockfish 14.1 our users get access to the strongest chess engine available today. In the period leading up to this release, Stockfish convincingly won several chess engine tournaments, including the TCEC 21 superfinal, the TCEC Cup 9, and the Computer Chess Championship for Fischer Random Chess (Chess960). In the latter tournament, Stockfish was undefeated in 599 out of 600 games played. Compared to Stockfish 14, this release introduces a more advanced NNUE architecture and various search improvements. In self play testing, using a book of balanced openings, Stockfish 14.1 wins three times more game pairs than it loses [2]. At this high level, draws are very common, so the Elo difference to Stockfish 14 is about 17 Elo. The NNUE evaluation method, introduced to top level chess with Stockfish 12 about one year ago [3], has now been adopted by several other strong CPU based chess engines. The Stockfish project builds on a thriving community of enthusiasts (thanks everybody!) 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 our chess fans to join the fishtest testing framework and programmers to contribute to the project [4]. Stay safe and enjoy chess! The Stockfish team [1] https://stockfishchess.org/download/ [2] https://tests.stockfishchess.org/tests/view/6175c320af70c2be1788fa2b [3] https://github.com/official-stockfish/Stockfish/discussions/3628 [4] https://stockfishchess.org/get-involved/
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