Dev Builds » 20230703-1638

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 06:54:03 584119 4000 1317 690 1993 +54.91 ± 5.01 0 190 999 805 6 +111.56 ± 10.72
ncm-dbt-02 06:53:32 587073 4000 1330 719 1951 +53.49 ± 5.11 0 211 974 808 7 +108.3 ± 10.89
ncm-dbt-03 06:54:24 587276 4000 1350 713 1937 +55.8 ± 5.03 1 189 988 816 6 +113.68 ± 10.78
ncm-dbt-04 06:54:22 570844 4002 1348 728 1926 +54.26 ± 5.11 4 196 985 808 8 +110.54 ± 10.81
ncm-dbt-05 06:54:40 585613 3998 1350 717 1931 +55.48 ± 5.18 6 196 966 821 10 +113.16 ± 10.93
20000 6695 3567 9738 +54.79 ± 2.28 11 982 4912 4058 37 +111.45 ± 4.84

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
404409 ncm-dbt-04 571632 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02 ↓
404408 ncm-dbt-05 586477 498 164 85 249 +55.58 ± 13.75 0 20 131 97 1 +112.62 ± 29.42 ↓
404407 ncm-dbt-01 584327 500 172 84 244 +61.79 ± 13.71 0 19 124 107 0 +127.76 ± 30.41 ↓
404406 ncm-dbt-03 586901 500 165 89 246 +53.22 ± 14.29 0 26 122 102 0 +109.07 ± 30.84 ↓
404405 ncm-dbt-02 588174 500 169 85 246 +58.93 ± 14.29 0 23 121 105 1 +119.89 ± 30.94 ↓
404404 ncm-dbt-04 571190 500 172 88 240 +58.93 ± 14.01 0 22 122 106 0 +121.46 ± 30.78 ↓
404403 ncm-dbt-03 584411 500 165 81 254 +58.93 ± 14.69 0 27 112 111 0 +121.46 ± 32.29 ↓
404402 ncm-dbt-01 583154 500 176 82 242 +66.1 ± 15.0 0 24 111 112 3 +132.54 ± 32.44 ↓
404401 ncm-dbt-04 570909 500 178 93 229 +59.64 ± 13.17 0 16 133 101 0 +123.02 ± 29.0 ↓
404400 ncm-dbt-05 580945 500 159 94 247 +45.42 ± 15.44 1 32 121 93 3 +89.48 ± 31.03 ↓
404399 ncm-dbt-02 587070 500 167 103 230 +44.72 ± 13.97 0 26 135 88 1 +89.48 ± 29.04 ↓
404398 ncm-dbt-01 584958 500 172 106 222 +46.13 ± 14.18 0 27 131 91 1 +92.46 ± 29.6 ↓
404397 ncm-dbt-02 588643 500 174 87 239 +61.07 ± 14.38 0 24 115 111 0 +126.18 ± 31.84 ↓
404396 ncm-dbt-03 587537 500 171 90 239 +56.78 ± 14.19 0 22 127 99 2 +113.68 ± 30.06 ↓
404395 ncm-dbt-04 568514 500 153 79 268 +51.8 ± 14.75 0 28 122 98 2 +102.97 ± 30.86 ↓
404394 ncm-dbt-05 584579 500 165 82 253 +58.21 ± 13.83 0 21 125 104 0 +119.89 ± 30.32 ↓
404393 ncm-dbt-01 581569 500 146 77 277 +48.25 ± 14.16 0 26 130 93 1 +96.94 ± 29.72 ↓
404392 ncm-dbt-03 590481 500 166 98 236 +47.55 ± 12.99 0 19 144 87 0 +96.94 ± 27.59 ↓
404391 ncm-dbt-04 571592 500 169 103 228 +46.13 ± 15.23 1 33 115 101 0 +95.44 ± 31.86 ↓
404390 ncm-dbt-05 586901 500 173 94 233 +55.36 ± 13.98 1 20 128 101 0 +115.23 ± 29.89 ↓
404389 ncm-dbt-02 586858 500 156 82 262 +51.8 ± 14.62 0 29 118 103 0 +106.01 ± 31.43 ↓
404388 ncm-dbt-04 570709 500 167 90 243 +53.93 ± 14.59 0 25 126 96 3 +106.01 ± 30.26 ↓
404387 ncm-dbt-01 583824 500 151 86 263 +45.42 ± 13.73 0 25 135 90 0 +92.46 ± 29.02 ↓
404386 ncm-dbt-05 586901 500 175 88 237 +61.07 ± 15.18 0 28 109 111 2 +123.02 ± 32.74 ↓
404385 ncm-dbt-02 586097 500 181 90 229 +63.94 ± 14.5 0 22 117 109 2 +129.35 ± 31.52 ↓
404384 ncm-dbt-03 586435 500 171 91 238 +56.07 ± 14.29 0 24 123 102 1 +113.68 ± 30.67 ↓
404383 ncm-dbt-01 584579 500 172 83 245 +62.51 ± 13.88 0 20 121 109 0 +129.35 ± 30.88 ↓
404382 ncm-dbt-05 584664 500 170 85 245 +59.64 ± 14.18 2 16 128 103 1 +124.6 ± 29.8 ↓
404381 ncm-dbt-04 570629 500 175 88 237 +61.08 ± 15.18 2 22 115 109 2 +126.18 ± 31.84 ↓
404380 ncm-dbt-02 581902 500 165 99 236 +46.13 ± 14.72 0 29 129 89 3 +89.48 ± 29.91 ↓
404379 ncm-dbt-03 586181 500 173 93 234 +56.07 ± 14.15 0 23 125 101 1 +113.68 ± 30.37 ↓
404378 ncm-dbt-01 581777 500 159 90 251 +48.25 ± 14.43 0 29 123 98 0 +98.44 ± 30.73 ↓
404377 ncm-dbt-05 582235 500 181 99 220 +57.5 ± 15.54 1 30 106 112 1 +118.33 ± 33.16 ↓
404376 ncm-dbt-03 587367 500 171 84 245 +61.08 ± 15.05 1 25 111 112 1 +126.18 ± 32.44 ↓
404375 ncm-dbt-04 571351 500 159 90 251 +48.25 ± 14.3 0 28 125 97 0 +98.44 ± 30.45 ↓
404374 ncm-dbt-02 588515 500 155 92 253 +44.01 ± 14.73 0 33 121 96 0 +89.48 ± 31.03 ↓
404373 ncm-dbt-05 592202 500 163 90 247 +51.09 ± 15.23 1 29 118 100 2 +102.97 ± 31.44 ↓
404372 ncm-dbt-03 588899 500 168 87 245 +56.78 ± 14.19 0 23 124 102 1 +115.23 ± 30.51 ↓
404371 ncm-dbt-01 588771 500 169 82 249 +61.07 ± 13.96 0 20 124 105 1 +124.6 ± 30.44 ↓
404370 ncm-dbt-04 571070 500 174 97 229 +53.93 ± 14.32 1 22 127 99 1 +110.6 ± 30.08 ↓
404369 ncm-dbt-02 589326 500 163 81 256 +57.5 ± 14.36 0 25 118 107 0 +118.33 ± 31.4 ↓

Commit

Commit ID 9cd563cb54b4091c48e16b524b3c9c15b7824c4f
Author FauziAkram
Date 2023-07-03 16:38:41 UTC
Improving grammar and readability of comments closes https://github.com/official-stockfish/Stockfish/pull/4643 No functional change
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy