Dev Builds » 20230520-0819

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 06:57:55 583960 4002 1253 743 2006 +44.52 ± 5.17 3 243 1000 751 4 +90.36 ± 10.75
ncm-dbt-02 06:56:40 585873 4000 1276 766 1958 +44.54 ± 5.0 0 226 1040 732 2 +90.22 ± 10.5
ncm-dbt-03 06:57:46 585240 4012 1302 813 1897 +42.56 ± 5.09 1 242 1037 719 7 +85.33 ± 10.53
ncm-dbt-04 06:56:38 570956 4000 1237 824 1939 +36.0 ± 5.15 4 265 1052 672 7 +72.25 ± 10.45
ncm-dbt-05 06:57:39 584068 3986 1273 792 1921 +42.13 ± 5.18 1 256 1002 729 5 +84.8 ± 10.74
20000 6341 3938 9721 +41.95 ± 2.29 9 1232 5131 3603 25 +84.56 ± 4.74

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
408942 ncm-dbt-01 584748 2 1 1 0 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47 ↓
408941 ncm-dbt-03 585674 12 3 1 8 +58.39 ± 68.56 0 0 4 2 0 +120.33 ± 161.99 ↓
408940 ncm-dbt-05 580199 486 145 90 251 +39.49 ± 14.8 0 33 122 88 0 +80.02 ± 30.87 ↓
408939 ncm-dbt-02 588813 500 150 96 254 +37.67 ± 14.35 0 33 130 87 0 +76.25 ± 29.82 ↓
408938 ncm-dbt-04 570348 500 155 104 241 +35.56 ± 13.67 0 29 141 80 0 +71.89 ± 28.29 ↓
408937 ncm-dbt-01 586266 500 161 69 270 +64.66 ± 13.39 0 16 126 108 0 +134.15 ± 30.02 ↓
408936 ncm-dbt-03 585717 500 148 105 247 +29.95 ± 14.5 1 35 134 80 0 +61.79 ± 29.32 ↓
408935 ncm-dbt-05 584958 500 162 99 239 +44.01 ± 14.33 0 29 130 90 1 +88.0 ± 29.77 ↓
408934 ncm-dbt-04 571230 500 153 98 249 +38.37 ± 13.72 0 28 139 83 0 +77.71 ± 28.54 ↓
408933 ncm-dbt-02 586223 500 168 91 241 +53.93 ± 14.59 0 27 120 102 1 +109.07 ± 31.14 ↓
408932 ncm-dbt-01 585421 500 163 89 248 +51.8 ± 14.75 0 30 116 104 0 +106.01 ± 31.72 ↓
408931 ncm-dbt-03 584243 500 163 100 237 +44.01 ± 15.11 0 35 118 96 1 +88.0 ± 31.44 ↓
408930 ncm-dbt-05 585211 500 157 88 255 +48.25 ± 14.57 0 30 121 99 0 +98.44 ± 31.02 ↓
408929 ncm-dbt-04 570789 500 168 103 229 +45.42 ± 14.94 1 28 129 89 3 +89.48 ± 29.91 ↓
408928 ncm-dbt-02 583321 500 168 110 222 +40.48 ± 13.85 0 27 139 83 1 +80.63 ± 28.52 ↓
408927 ncm-dbt-01 584622 500 153 99 248 +37.67 ± 15.86 1 39 118 89 3 +73.34 ± 31.44 ↓
408926 ncm-dbt-03 583614 500 170 108 222 +43.3 ± 14.42 0 30 129 90 1 +86.52 ± 29.92 ↓
408925 ncm-dbt-05 578671 500 148 96 256 +36.26 ± 15.04 0 39 120 91 0 +73.34 ± 31.18 ↓
408924 ncm-dbt-04 570068 500 157 108 235 +34.16 ± 15.29 0 41 120 88 1 +67.55 ± 31.17 ↓
408923 ncm-dbt-02 586774 500 166 104 230 +43.3 ± 14.43 0 31 126 93 0 +88.0 ± 30.34 ↓
408922 ncm-dbt-01 582235 500 150 97 253 +36.97 ± 14.04 0 31 135 84 0 +74.79 ± 29.13 ↓
408921 ncm-dbt-03 580862 500 170 89 241 +56.78 ± 14.32 0 24 122 103 1 +115.23 ± 30.81 ↓
408920 ncm-dbt-02 586223 500 160 89 251 +49.67 ± 14.24 0 27 125 98 0 +101.46 ± 30.43 ↓
408919 ncm-dbt-05 586350 500 162 105 233 +39.78 ± 14.48 0 31 133 84 2 +77.71 ± 29.4 ↓
408918 ncm-dbt-04 571592 500 157 109 234 +33.46 ± 14.86 1 36 127 86 0 +68.99 ± 30.25 ↓
408917 ncm-dbt-03 586223 500 154 97 249 +39.78 ± 14.61 0 33 128 88 1 +79.17 ± 30.09 ↓
408916 ncm-dbt-01 582027 500 146 97 257 +34.16 ± 14.26 0 34 133 83 0 +68.99 ± 29.43 ↓
408915 ncm-dbt-02 584958 500 167 93 240 +51.8 ± 14.08 0 25 126 99 0 +106.01 ± 30.26 ↓
408914 ncm-dbt-05 587579 500 169 111 220 +40.48 ± 14.65 1 30 130 88 1 +82.1 ± 29.8 ↓
408913 ncm-dbt-04 570469 500 157 97 246 +41.9 ± 13.8 1 24 139 86 0 +86.52 ± 28.47 ↓
408912 ncm-dbt-03 587962 500 161 102 237 +41.19 ± 14.03 0 29 133 88 0 +83.57 ± 29.37 ↓
408911 ncm-dbt-01 581943 500 153 99 248 +37.67 ± 14.61 1 32 129 88 0 +77.71 ± 29.96 ↓
408910 ncm-dbt-02 585253 500 137 95 268 +29.25 ± 13.92 0 34 140 76 0 +58.93 ± 28.51 ↓
408909 ncm-dbt-05 584537 500 164 104 232 +41.89 ± 14.48 0 32 126 92 0 +85.04 ± 30.35 ↓
408908 ncm-dbt-04 569709 500 136 98 266 +26.46 ± 15.76 1 44 124 78 3 +50.38 ± 30.66 ↓
408907 ncm-dbt-03 586604 500 163 102 235 +42.6 ± 14.78 0 33 124 92 1 +85.04 ± 30.63 ↓
408906 ncm-dbt-01 581985 500 164 98 238 +46.13 ± 14.72 1 29 123 97 0 +95.44 ± 30.74 ↓
408905 ncm-dbt-02 585421 500 160 88 252 +50.38 ± 13.58 0 22 134 94 0 +102.97 ± 29.07 ↓
408904 ncm-dbt-05 585042 500 166 99 235 +46.84 ± 14.88 0 32 120 97 1 +93.95 ± 31.17 ↓
408903 ncm-dbt-03 586266 500 170 109 221 +42.6 ± 13.56 0 23 145 80 2 +83.57 ± 27.6 ↓
408902 ncm-dbt-04 573446 500 154 107 239 +32.76 ± 14.3 0 35 133 82 0 +66.1 ± 29.44 ↓
408901 ncm-dbt-01 586393 500 162 94 244 +47.54 ± 14.92 0 32 119 98 1 +95.44 ± 31.3 ↓

Commit

Commit ID df0fb8471e5015bb4ba0b398c203b7faad45840e
Author Michael Chaly
Date 2023-05-20 08:19:03 UTC
Small simplification in low depth pruning Uncap low depth pruning lmr depth. It's anyway capped for most cases apart from futility pruning for captures - removes one std::min call. Passed STC: https://tests.stockfishchess.org/tests/view/645e8fa6d55cccb2e64225a1 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 184064 W: 49039 L: 48982 D: 86043 Ptnml(0-2): 462, 20353, 50349, 20402, 466 Passed LTC: https://tests.stockfishchess.org/tests/view/645f4d48d55cccb2e6423335 LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 83886 W: 22613 L: 22465 D: 38808 Ptnml(0-2): 31, 8090, 25546, 8252, 24 closes https://github.com/official-stockfish/Stockfish/pull/4566 bench 3201883
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