Dev Builds » 20250402-1534

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 06:43:02 583005 4000 1635 413 1952 +109.64 ± 4.76 0 60 682 1234 24 +240.28 ± 13.02
ncm-dbt-02 06:45:26 584050 4016 1651 460 1905 +106.23 ± 4.76 1 67 696 1228 16 +233.14 ± 12.9
ncm-dbt-03 06:43:04 584915 4000 1667 453 1880 +108.88 ± 4.78 1 56 698 1218 27 +237.58 ± 12.86
ncm-dbt-04 06:45:10 570692 4000 1624 439 1937 +106.11 ± 4.79 1 68 693 1221 17 +232.53 ± 12.93
ncm-dbt-05 06:45:43 586146 3984 1636 467 1881 +105.03 ± 4.8 0 64 719 1185 24 +227.45 ± 12.67
20000 8213 2232 9555 +107.18 ± 2.14 3 315 3488 6086 108 +234.17 ± 5.75

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
407363 ncm-dbt-02 585464 16 8 1 7 +162.87 ± 92.75 0 0 2 5 1 +337.87 ± 515.83
407362 ncm-dbt-05 585759 484 206 54 224 +112.93 ± 13.3 0 7 77 157 1 +254.14 ± 39.12
407361 ncm-dbt-01 584411 500 209 50 241 +114.45 ± 13.55 0 9 75 164 2 +256.44 ± 39.69
407360 ncm-dbt-04 568991 500 206 55 239 +108.3 ± 13.56 0 8 86 153 3 +236.51 ± 36.93
407359 ncm-dbt-03 583866 500 219 60 221 +114.45 ± 12.85 0 3 89 154 4 +251.89 ± 35.92
407358 ncm-dbt-02 586689 500 207 64 229 +102.22 ± 13.86 0 12 84 153 1 +223.94 ± 37.43
407357 ncm-dbt-05 584201 500 209 50 241 +114.45 ± 13.72 0 8 79 159 4 +251.89 ± 38.63
407356 ncm-dbt-04 569549 500 217 55 228 +116.77 ± 13.71 0 9 73 165 3 +261.07 ± 40.24
407355 ncm-dbt-03 581070 500 209 48 243 +116.0 ± 13.2 0 6 80 161 3 +258.75 ± 38.32
407354 ncm-dbt-01 583614 500 199 52 249 +105.25 ± 13.39 0 6 95 145 4 +226.0 ± 34.87
407353 ncm-dbt-02 583992 500 196 52 252 +102.97 ± 13.21 0 8 91 150 1 +226.0 ± 35.82
407352 ncm-dbt-05 587707 500 210 56 234 +110.6 ± 12.7 0 4 90 154 2 +245.2 ± 35.79
407351 ncm-dbt-04 571270 500 196 58 246 +98.44 ± 12.5 0 4 105 140 1 +213.85 ± 32.74
407350 ncm-dbt-01 581319 500 202 50 248 +109.07 ± 13.4 0 7 87 153 3 +238.66 ± 36.67
407349 ncm-dbt-03 585632 500 199 46 255 +109.83 ± 13.23 0 7 85 156 2 +243.0 ± 37.13
407348 ncm-dbt-02 582068 500 210 57 233 +109.83 ± 13.05 0 8 81 161 0 +247.41 ± 38.13
407347 ncm-dbt-05 586646 500 194 55 251 +99.2 ± 13.83 0 12 88 149 1 +215.85 ± 36.55
407346 ncm-dbt-01 585759 500 217 54 229 +117.55 ± 13.0 0 4 83 159 4 +261.07 ± 37.44
407345 ncm-dbt-04 570869 500 190 63 247 +90.22 ± 14.16 1 10 103 133 3 +190.85 ± 33.57
407344 ncm-dbt-03 585674 500 212 60 228 +109.07 ± 14.84 0 14 75 156 5 +234.38 ± 39.52
407343 ncm-dbt-02 583614 500 207 63 230 +102.97 ± 13.21 0 6 97 144 3 +221.9 ± 34.46
407342 ncm-dbt-01 583028 500 205 40 255 +119.11 ± 13.86 0 7 77 160 6 +261.07 ± 39.14
407341 ncm-dbt-05 587325 500 204 63 233 +100.7 ± 14.01 0 10 93 143 4 +213.85 ± 35.47
407340 ncm-dbt-04 569071 500 209 48 243 +116.0 ± 13.37 0 8 75 165 2 +261.07 ± 39.69
407339 ncm-dbt-03 586858 500 201 52 247 +106.77 ± 13.56 0 9 85 154 2 +234.38 ± 37.19
407338 ncm-dbt-02 585970 500 204 51 245 +109.83 ± 12.88 0 6 86 157 1 +245.2 ± 36.85
407337 ncm-dbt-01 582402 500 205 54 241 +108.3 ± 13.56 0 8 86 153 3 +236.51 ± 36.93
407336 ncm-dbt-05 586181 500 210 74 216 +96.94 ± 13.65 0 9 99 139 3 +206.01 ± 34.24
407335 ncm-dbt-04 570469 500 207 57 236 +107.54 ± 13.56 0 9 84 155 2 +236.51 ± 37.42
407334 ncm-dbt-03 584076 500 207 53 240 +110.6 ± 13.73 1 5 87 153 4 +243.0 ± 36.62
407333 ncm-dbt-02 585885 500 197 54 249 +102.22 ± 14.18 0 12 86 149 3 +219.87 ± 36.98
407332 ncm-dbt-01 581943 500 198 60 242 +98.44 ± 13.98 0 13 87 149 1 +213.85 ± 36.76
407331 ncm-dbt-05 585843 500 205 60 235 +103.73 ± 13.22 0 6 96 145 3 +223.94 ± 34.66
407330 ncm-dbt-03 585885 500 213 58 229 +111.37 ± 13.89 0 8 84 153 5 +240.82 ± 37.4
407329 ncm-dbt-02 577602 500 211 64 225 +105.25 ± 13.22 1 4 94 149 2 +232.26 ± 35.0
407328 ncm-dbt-04 571431 500 191 53 256 +98.44 ± 13.51 0 10 93 146 1 +213.85 ± 35.47
407327 ncm-dbt-01 581569 500 200 53 247 +105.25 ± 12.88 0 6 92 151 1 +232.26 ± 35.5
407326 ncm-dbt-03 586266 500 207 76 217 +93.2 ± 12.62 0 4 113 131 2 +198.34 ± 31.31
407325 ncm-dbt-04 573891 500 208 50 242 +113.68 ± 13.72 0 10 74 164 2 +254.16 ± 39.94
407324 ncm-dbt-02 585169 500 211 54 235 +112.91 ± 14.22 0 11 75 160 4 +247.41 ± 39.65
407323 ncm-dbt-05 585506 500 198 55 247 +102.22 ± 14.02 0 8 97 139 6 +213.85 ± 34.58

Commit

Commit ID c2ff7a95c3ffee1c964735a0a4bd0e34cf76cab8
Author Shawn Xu
Date 2025-04-02 15:34:31 UTC
Cleanup fused updates Passed Non-regression STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 70656 W: 18257 L: 18077 D: 34322 Ptnml(0-2): 217, 7912, 18879, 8114, 206 https://tests.stockfishchess.org/tests/view/67e23ae78888403457d876d4 closes https://github.com/official-stockfish/Stockfish/pull/5941 No functional change
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