Dev Builds » 20230401-1414

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 06:57:16 583251 4000 1264 800 1936 +40.48 ± 5.08 3 240 1053 698 6 +81.55 ± 10.43
ncm-dbt-02 06:58:51 587099 4032 1340 818 1874 +45.23 ± 5.12 4 229 1033 741 9 +91.13 ± 10.55
ncm-dbt-03 06:58:37 587348 3994 1243 777 1974 +40.72 ± 4.99 1 227 1082 679 8 +81.31 ± 10.25
ncm-dbt-04 06:58:43 569705 3984 1275 804 1905 +41.27 ± 5.08 3 235 1047 702 5 +83.36 ± 10.46
ncm-dbt-05 06:59:21 583355 3990 1232 797 1961 +38.03 ± 5.17 3 265 1025 698 4 +76.81 ± 10.61
20000 6354 3996 9650 +41.15 ± 2.28 14 1196 5240 3518 32 +82.83 ± 4.68

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
394417 ncm-dbt-02 587494 32 11 5 16 +65.92 ± 53.38 0 1 8 7 0 +136.97 ± 126.3 ↓
394416 ncm-dbt-04 570909 484 156 85 243 +51.34 ± 14.4 0 23 127 90 2 +101.89 ± 30.0 ↓
394415 ncm-dbt-05 585000 490 150 91 249 +42.04 ± 13.59 1 20 144 79 1 +85.34 ± 27.56 ↓
394414 ncm-dbt-03 584874 494 147 98 249 +34.57 ± 14.29 0 31 138 76 2 +66.93 ± 28.69 ↓
394413 ncm-dbt-01 583405 500 159 100 241 +41.19 ± 15.21 1 34 121 93 1 +83.57 ± 31.04 ↓
394412 ncm-dbt-02 587240 500 166 106 228 +41.89 ± 14.34 0 29 134 85 2 +82.1 ± 29.23 ↓
394411 ncm-dbt-03 588047 500 162 106 232 +39.08 ± 13.76 0 27 141 81 1 +77.71 ± 28.25 ↓
394410 ncm-dbt-04 569390 500 156 104 240 +36.26 ± 14.53 0 35 128 87 0 +73.34 ± 30.1 ↓
394409 ncm-dbt-05 581943 500 145 104 251 +28.55 ± 14.54 0 38 134 77 1 +56.07 ± 29.34 ↓
394408 ncm-dbt-01 584874 500 148 107 245 +28.55 ± 13.6 0 31 148 70 1 +56.07 ± 27.39 ↓
394407 ncm-dbt-02 586858 500 173 104 223 +48.25 ± 14.83 1 27 126 94 2 +96.94 ± 30.31 ↓
394406 ncm-dbt-04 569589 500 164 111 225 +36.97 ± 14.7 1 32 131 85 1 +74.79 ± 29.69 ↓
394405 ncm-dbt-03 586985 500 161 108 231 +36.97 ± 13.49 0 27 143 80 0 +74.79 ± 27.98 ↓
394404 ncm-dbt-05 583614 500 146 101 253 +31.35 ± 14.98 0 41 123 86 0 +63.23 ± 30.78 ↓
394403 ncm-dbt-01 583908 500 152 101 247 +35.56 ± 14.48 1 32 132 85 0 +73.34 ± 29.56 ↓
394402 ncm-dbt-02 586266 500 157 99 244 +40.48 ± 14.39 0 31 131 87 1 +80.63 ± 29.67 ↓
394401 ncm-dbt-04 568514 500 155 116 229 +27.15 ± 13.77 0 34 143 73 0 +54.65 ± 28.11 ↓
394400 ncm-dbt-03 586477 500 147 96 257 +35.56 ± 14.08 0 32 135 83 0 +71.89 ± 29.14 ↓
394399 ncm-dbt-05 584117 500 155 84 261 +49.67 ± 14.38 1 24 129 95 1 +101.46 ± 29.84 ↓
394398 ncm-dbt-01 582903 500 154 94 252 +41.89 ± 13.23 0 22 147 80 1 +83.57 ± 27.29 ↓
394397 ncm-dbt-02 585211 500 172 111 217 +42.6 ± 14.52 1 29 128 92 0 +88.0 ± 30.06 ↓
394396 ncm-dbt-04 569669 500 160 96 244 +44.72 ± 13.69 0 25 136 89 0 +90.97 ± 28.88 ↓
394395 ncm-dbt-03 586774 500 155 102 243 +36.97 ± 13.77 0 28 142 79 1 +73.34 ± 28.14 ↓
394394 ncm-dbt-05 581028 500 161 104 235 +39.78 ± 15.25 0 39 115 96 0 +80.63 ± 31.84 ↓
394393 ncm-dbt-01 583992 500 161 97 242 +44.72 ± 14.1 0 28 130 92 0 +90.97 ± 29.76 ↓
394392 ncm-dbt-02 586985 500 166 92 242 +51.8 ± 13.8 1 20 133 96 0 +107.54 ± 29.18 ↓
394391 ncm-dbt-04 569509 500 162 90 248 +50.38 ± 15.33 1 32 111 106 0 +104.49 ± 32.42 ↓
394390 ncm-dbt-03 589539 500 154 89 257 +45.42 ± 13.87 0 25 136 88 1 +90.97 ± 28.88 ↓
394389 ncm-dbt-05 584495 500 158 92 250 +46.13 ± 15.1 1 31 120 97 1 +93.95 ± 31.17 ↓
394388 ncm-dbt-01 579785 500 157 95 248 +43.3 ± 14.43 0 31 126 93 0 +88.0 ± 30.34 ↓
394387 ncm-dbt-02 587962 500 164 102 234 +43.3 ± 14.95 1 30 127 90 2 +86.52 ± 30.2 ↓
394386 ncm-dbt-04 568713 500 165 96 239 +48.25 ± 14.83 0 31 120 98 1 +96.94 ± 31.16 ↓
394385 ncm-dbt-03 587707 500 163 92 245 +49.67 ± 15.54 0 34 114 99 3 +96.94 ± 32.0 ↓
394384 ncm-dbt-02 587197 500 174 99 227 +52.51 ± 14.39 0 27 121 102 0 +107.54 ± 30.99 ↓
394383 ncm-dbt-05 582027 500 156 107 237 +34.16 ± 14.65 0 37 127 86 0 +68.99 ± 30.25 ↓
394382 ncm-dbt-01 583489 500 168 104 228 +44.72 ± 14.51 0 30 127 92 1 +89.48 ± 30.19 ↓
394381 ncm-dbt-03 588387 500 154 86 260 +47.55 ± 13.99 1 23 133 93 0 +98.44 ± 29.27 ↓
394380 ncm-dbt-04 571351 500 157 106 237 +35.56 ± 13.39 1 23 151 74 1 +71.89 ± 26.81 ↓
394379 ncm-dbt-01 583656 500 165 102 233 +44.01 ± 15.24 1 32 122 93 2 +88.0 ± 30.9 ↓
394378 ncm-dbt-02 588686 500 157 100 243 +39.78 ± 15.0 0 35 125 88 2 +77.71 ± 30.5 ↓
394377 ncm-dbt-05 584622 500 161 114 225 +32.76 ± 14.3 0 35 133 82 0 +66.1 ± 29.44 ↓

Commit

Commit ID 38a80c0b47397dbdd9167ec1476dfd3c033020d6
Author MinetaS
Date 2023-04-01 14:14:30 UTC
Simplify away complexityAverage Instead of tracking the average of complexity values, calculate complexity of root position at the beginning of the search and use it as a scaling factor in time management. Passed non-regression STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 58752 W: 15738 L: 15551 D: 27463 Ptnml(0-2): 164, 6194, 16478, 6371, 169 https://tests.stockfishchess.org/tests/view/6423010edb43ab2ba6f9424a Passed non-regression LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 92872 W: 24865 L: 24729 D: 43278 Ptnml(0-2): 38, 8652, 28929, 8770, 47 https://tests.stockfishchess.org/tests/view/6423c1f0db43ab2ba6f9644f closes https://github.com/official-stockfish/Stockfish/pull/4472 No functional change
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