Dev Builds » 20230410-0903

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 06:58:45 584055 4008 1268 789 1951 +41.72 ± 5.22 3 261 1001 732 7 +83.95 ± 10.75
ncm-dbt-02 06:58:34 586178 4008 1235 771 2002 +40.4 ± 5.17 1 262 1020 714 7 +80.83 ± 10.64
ncm-dbt-03 06:57:36 584426 4000 1230 799 1971 +37.58 ± 5.08 0 261 1052 682 5 +75.15 ± 10.45
ncm-dbt-04 06:57:22 568923 4000 1307 832 1861 +41.45 ± 5.24 2 262 1006 719 11 +82.47 ± 10.72
ncm-dbt-05 06:58:11 579466 3984 1264 779 1941 +42.51 ± 4.97 4 209 1083 690 6 +85.95 ± 10.22
20000 6304 3970 9726 +40.73 ± 2.3 10 1255 5162 3537 36 +81.66 ± 4.72

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
428193 ncm-dbt-02 589454 8 2 2 4 -0.0 ± 125.78 0 1 2 1 0 -0.0 ± 296.58 ↓
428192 ncm-dbt-01 585295 8 2 1 5 +43.64 ± 153.21 0 1 1 2 0 +88.74 ± 710.5 ↓
428191 ncm-dbt-05 576946 484 155 94 235 +44.02 ± 13.84 0 24 133 85 0 +89.51 ± 29.16 ↓
428190 ncm-dbt-03 584411 500 153 93 254 +41.89 ± 15.12 0 36 119 94 1 +83.57 ± 31.31 ↓
428189 ncm-dbt-04 569509 500 162 104 234 +40.48 ± 14.91 0 36 120 94 0 +82.1 ± 31.18 ↓
428188 ncm-dbt-01 584874 500 163 109 228 +37.67 ± 15.38 1 37 120 91 1 +76.25 ± 31.18 ↓
428187 ncm-dbt-02 588089 500 141 100 259 +28.55 ± 14.01 0 35 139 76 0 +57.5 ± 28.65 ↓
428186 ncm-dbt-05 577561 500 158 110 232 +33.46 ± 14.86 2 33 130 85 0 +70.44 ± 29.84 ↓
428185 ncm-dbt-04 567759 500 167 91 242 +53.22 ± 15.59 0 34 108 106 2 +106.01 ± 32.84 ↓
428184 ncm-dbt-03 585042 500 151 94 255 +39.78 ± 14.22 0 31 131 88 0 +80.63 ± 29.67 ↓
428183 ncm-dbt-01 584622 500 152 98 250 +37.67 ± 14.87 1 33 128 87 1 +76.25 ± 30.1 ↓
428182 ncm-dbt-02 582402 500 154 89 257 +45.42 ± 15.07 0 34 118 97 1 +90.97 ± 31.44 ↓
428181 ncm-dbt-05 578218 500 167 101 232 +46.13 ± 14.32 1 24 135 88 2 +92.46 ± 29.02 ↓
428180 ncm-dbt-04 570268 500 161 115 224 +32.05 ± 14.52 0 35 136 77 2 +61.79 ± 29.05 ↓
428179 ncm-dbt-01 583908 500 164 88 248 +53.22 ± 15.47 1 29 116 101 3 +106.01 ± 31.72 ↓
428178 ncm-dbt-03 585253 500 146 98 256 +33.46 ± 14.08 0 33 136 81 0 +67.55 ± 29.02 ↓
428177 ncm-dbt-02 587367 500 160 115 225 +31.35 ± 14.6 0 36 135 77 2 +60.36 ± 29.19 ↓
428176 ncm-dbt-05 578013 500 152 93 255 +41.19 ± 13.19 0 23 145 82 0 +83.57 ± 27.6 ↓
428175 ncm-dbt-04 570709 500 163 104 233 +41.19 ± 14.3 0 29 135 84 2 +80.63 ± 29.1 ↓
428174 ncm-dbt-01 581402 500 157 96 247 +42.6 ± 14.91 0 35 119 96 0 +86.52 ± 31.31 ↓
428173 ncm-dbt-03 583656 500 143 109 248 +23.66 ± 14.05 0 38 140 72 0 +47.55 ± 28.56 ↓
428172 ncm-dbt-02 585506 500 156 105 239 +35.56 ± 13.95 0 31 137 82 0 +71.89 ± 28.86 ↓
428171 ncm-dbt-05 581194 500 155 97 248 +40.48 ± 13.99 1 25 140 83 1 +82.1 ± 28.36 ↓
428170 ncm-dbt-04 567244 500 171 105 224 +46.13 ± 14.85 0 31 124 93 2 +90.97 ± 30.61 ↓
428169 ncm-dbt-01 584958 500 164 99 237 +45.42 ± 15.57 0 39 107 104 0 +92.46 ± 32.92 ↓
428168 ncm-dbt-03 586308 500 172 106 222 +46.13 ± 14.72 0 31 123 95 1 +92.46 ± 30.75 ↓
428167 ncm-dbt-02 586901 500 157 89 254 +47.54 ± 14.4 0 28 127 94 1 +95.44 ± 30.17 ↓
428166 ncm-dbt-05 580323 500 151 98 251 +36.97 ± 14.04 0 30 138 81 1 +73.34 ± 28.71 ↓
428165 ncm-dbt-04 568951 500 164 108 228 +39.08 ± 15.58 1 36 122 88 3 +76.25 ± 30.91 ↓
428164 ncm-dbt-01 582778 500 149 101 250 +33.46 ± 13.53 0 28 147 74 1 +66.1 ± 27.46 ↓
428163 ncm-dbt-03 584790 500 157 100 243 +39.78 ± 14.61 0 34 125 91 0 +80.63 ± 30.5 ↓
428162 ncm-dbt-02 584622 500 164 82 254 +57.5 ± 15.28 1 27 113 107 2 +116.78 ± 32.15 ↓
428161 ncm-dbt-05 583363 500 158 99 243 +41.19 ± 14.43 0 30 133 85 2 +80.63 ± 29.38 ↓
428160 ncm-dbt-04 567997 500 163 105 232 +40.48 ± 14.26 0 31 130 89 0 +82.1 ± 29.8 ↓
428159 ncm-dbt-03 585169 500 155 98 247 +39.78 ± 15.0 0 34 128 85 3 +76.25 ± 30.1 ↓
428158 ncm-dbt-01 583279 500 153 93 254 +41.89 ± 14.07 0 28 135 86 1 +83.57 ± 29.08 ↓
428157 ncm-dbt-02 586477 500 154 95 251 +41.19 ± 14.7 0 34 123 93 0 +83.57 ± 30.77 ↓
428156 ncm-dbt-05 580116 500 168 87 245 +56.78 ± 13.62 0 20 129 101 0 +116.78 ± 29.72 ↓
428155 ncm-dbt-03 580779 500 153 101 246 +36.26 ± 13.01 0 24 150 76 0 +73.34 ± 26.95 ↓
428154 ncm-dbt-04 568951 500 156 100 244 +39.08 ± 14.44 1 30 131 88 0 +80.63 ± 29.67 ↓
428153 ncm-dbt-02 584790 500 147 94 259 +36.97 ± 14.83 0 36 126 87 1 +73.34 ± 30.38 ↓
428152 ncm-dbt-01 585379 500 164 104 232 +41.89 ± 14.34 0 31 128 91 0 +85.04 ± 30.07 ↓

Commit

Commit ID 7bd23d4d04d6644b6ccae8ea63cfc6646e4248dd
Author Linmiao Xu
Date 2023-04-10 09:03:52 UTC
Simplify away nnue scale pawn count multiplier Removes 2x multipliers in nnue scale calculation along with the pawn count term that was recently reintroduced. Passed non-regression STC: https://tests.stockfishchess.org/tests/view/64305bc720eb941419bdf72e LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 38008 W: 10234 L: 10021 D: 17753 Ptnml(0-2): 96, 4151, 10323, 4312, 122 Passed non-regression LTC: https://tests.stockfishchess.org/tests/view/6430b76a028b029b01ac9bfd LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 91232 W: 24686 L: 24547 D: 41999 Ptnml(0-2): 30, 8721, 27986, 8838, 41 closes https://github.com/official-stockfish/Stockfish/pull/4510 bench 4017320
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