Dev Builds » 20230719-1938

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 06:54:21 583814 4000 1341 680 1979 +57.95 ± 5.0 1 176 991 825 7 +118.14 ± 10.75
ncm-dbt-02 06:55:47 585657 4016 1425 743 1848 +59.58 ± 5.09 1 183 970 841 13 +120.54 ± 10.9
ncm-dbt-03 06:53:22 584399 4000 1385 703 1912 +59.82 ± 5.09 4 177 959 853 7 +122.83 ± 10.96
ncm-dbt-04 06:55:42 567753 4002 1354 703 1945 +57.02 ± 5.09 6 180 978 831 6 +117.3 ± 10.84
ncm-dbt-05 06:54:41 578472 3982 1332 699 1951 +55.7 ± 5.14 0 204 959 819 9 +112.68 ± 10.97
20000 6837 3528 9635 +58.02 ± 2.27 12 920 4857 4169 42 +118.29 ± 4.87

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
425123 ncm-dbt-04 567126 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
425122 ncm-dbt-02 585548 16 5 2 9 +65.88 ± 61.23 0 0 5 3 0 +136.9 ± 147.45
425121 ncm-dbt-05 578013 482 162 84 236 +56.72 ± 14.86 0 24 117 98 2 +113.43 ± 31.49
425120 ncm-dbt-03 583656 500 157 95 248 +43.3 ± 14.56 0 32 124 94 0 +88.0 ± 30.62
425119 ncm-dbt-01 585042 500 159 96 245 +44.01 ± 13.65 0 25 137 88 0 +89.48 ± 28.74
425118 ncm-dbt-04 568355 500 166 88 246 +54.64 ± 14.49 0 25 124 99 2 +109.07 ± 30.54
425117 ncm-dbt-02 584874 500 165 103 232 +43.3 ± 14.69 1 27 134 85 3 +85.04 ± 29.21
425116 ncm-dbt-05 579413 500 151 75 274 +53.22 ± 14.42 0 26 123 100 1 +107.54 ± 30.7
425115 ncm-dbt-04 567640 500 162 93 245 +48.25 ± 13.89 2 18 140 89 1 +99.95 ± 28.18
425114 ncm-dbt-03 584579 500 172 95 233 +53.93 ± 15.25 1 28 116 103 2 +109.07 ± 31.72
425113 ncm-dbt-01 583824 500 172 82 246 +63.23 ± 14.06 1 18 121 110 0 +132.54 ± 30.86
425112 ncm-dbt-02 585337 500 181 96 223 +59.64 ± 13.9 0 20 126 103 1 +121.46 ± 30.15
425111 ncm-dbt-05 580489 500 166 83 251 +58.21 ± 14.66 0 25 119 104 2 +116.78 ± 31.26
425110 ncm-dbt-04 567442 500 172 87 241 +59.64 ± 13.76 0 20 125 105 0 +123.02 ± 30.3
425109 ncm-dbt-03 582318 500 175 92 233 +58.21 ± 14.66 2 20 122 105 1 +121.46 ± 30.78
425108 ncm-dbt-01 583866 500 166 82 252 +58.93 ± 14.56 0 25 117 107 1 +119.89 ± 31.55
425107 ncm-dbt-02 584285 500 181 108 211 +51.09 ± 15.23 0 33 112 104 1 +102.97 ± 32.28
425106 ncm-dbt-05 578588 500 169 93 238 +53.22 ± 14.69 0 28 119 102 1 +107.54 ± 31.29
425105 ncm-dbt-04 567363 500 164 82 254 +57.5 ± 15.16 1 27 112 109 1 +118.33 ± 32.29
425104 ncm-dbt-03 587113 500 173 82 245 +63.95 ± 13.66 0 18 123 109 0 +132.54 ± 30.53
425103 ncm-dbt-02 587749 500 188 91 221 +68.27 ± 15.34 0 27 101 120 2 +138.99 ± 33.98
425102 ncm-dbt-01 582987 500 163 90 247 +51.09 ± 13.9 0 24 129 97 0 +104.49 ± 29.82
425101 ncm-dbt-05 580365 500 175 86 239 +62.51 ± 14.17 0 21 120 108 1 +127.76 ± 31.05
425100 ncm-dbt-03 583112 500 176 90 234 +60.36 ± 14.35 0 23 119 107 1 +123.02 ± 31.23
425099 ncm-dbt-04 566414 500 169 96 235 +51.09 ± 15.61 2 31 109 108 0 +107.54 ± 32.71
425098 ncm-dbt-02 586901 500 187 87 226 +70.43 ± 13.91 0 16 120 112 2 +143.89 ± 30.92
425097 ncm-dbt-01 584537 500 170 86 244 +58.93 ± 13.58 0 19 128 103 0 +121.46 ± 29.83
425096 ncm-dbt-05 575761 500 166 102 232 +44.72 ± 15.03 0 34 119 96 1 +89.48 ± 31.31
425095 ncm-dbt-03 583698 500 188 84 228 +73.34 ± 14.58 1 18 108 122 1 +153.86 ± 32.88
425094 ncm-dbt-04 566217 500 171 90 239 +56.78 ± 13.62 0 20 129 101 0 +116.78 ± 29.72
425093 ncm-dbt-02 585295 500 165 78 257 +61.07 ± 13.96 0 20 124 105 1 +124.6 ± 30.44
425092 ncm-dbt-01 583824 500 171 86 243 +59.64 ± 13.76 0 19 128 102 1 +121.46 ± 29.83
425091 ncm-dbt-05 580613 500 168 89 243 +55.36 ± 14.26 0 25 121 104 0 +113.68 ± 30.97
425090 ncm-dbt-03 586139 500 181 96 223 +59.64 ± 14.18 0 22 122 105 1 +121.46 ± 30.78
425089 ncm-dbt-01 583112 500 181 85 234 +67.54 ± 15.05 0 24 109 114 3 +135.76 ± 32.75
425088 ncm-dbt-02 584495 500 174 88 238 +60.36 ± 13.5 0 17 131 101 1 +123.02 ± 29.33
425087 ncm-dbt-04 568077 500 166 93 241 +51.09 ± 14.58 0 28 122 99 1 +102.97 ± 30.86
425086 ncm-dbt-05 574540 500 175 87 238 +61.79 ± 14.14 0 21 121 107 1 +126.18 ± 30.9
425085 ncm-dbt-03 584579 500 163 69 268 +66.1 ± 13.6 0 16 125 108 1 +135.76 ± 30.17
425084 ncm-dbt-02 586435 500 179 90 231 +62.51 ± 14.58 0 23 117 108 2 +126.18 ± 31.53
425083 ncm-dbt-01 583321 500 159 73 268 +60.36 ± 14.35 0 22 122 104 2 +121.46 ± 30.78
425082 ncm-dbt-04 571150 500 183 74 243 +76.98 ± 13.68 1 11 117 120 1 +162.35 ± 31.23

Commit

Commit ID 3fe0d5c53389b3d548cf1fbbba3f6c978e9f02ae
Author Cody Ho
Date 2023-07-19 19:38:39 UTC
Unused code cleanup closes https://github.com/official-stockfish/Stockfish/pull/4696 No functional change
Copyright 2011–2025 Next Chess Move LLC