Dev Builds » 20250202-1244

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 06:49:59 584053 3990 1550 534 1906 +90.46 ± 4.91 1 94 803 1082 15 +191.89 ± 11.99
ncm-dbt-02 06:49:04 585438 4000 1541 537 1922 +89.11 ± 4.94 4 99 795 1093 9 +190.62 ± 12.06
ncm-dbt-03 06:48:49 587148 4006 1559 533 1914 +91.01 ± 4.93 2 97 791 1099 14 +193.75 ± 12.09
ncm-dbt-04 06:49:08 571049 4006 1558 538 1910 +90.45 ± 4.91 2 92 809 1084 16 +191.89 ± 11.94
ncm-dbt-05 06:49:23 584513 3998 1551 542 1905 +89.62 ± 4.97 5 94 801 1085 14 +190.96 ± 12.01
20000 7759 2684 9557 +90.13 ± 2.21 14 476 3999 5443 68 +191.82 ± 5.37

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
398360 ncm-dbt-03 586562 6 2 0 4 +120.22 ± 109.7 0 0 1 2 0 +279.24 ± 576.89
398359 ncm-dbt-04 570829 6 2 0 4 +120.22 ± 109.7 0 0 1 2 0 +279.24 ± 576.89
398358 ncm-dbt-01 582945 490 198 73 219 +90.63 ± 14.97 0 16 92 133 4 +188.02 ± 35.71
398357 ncm-dbt-05 585464 498 195 67 236 +91.35 ± 14.07 0 12 100 134 3 +191.78 ± 34.15
398356 ncm-dbt-02 587622 500 189 68 243 +85.78 ± 13.3 0 9 113 126 2 +179.9 ± 31.72
398355 ncm-dbt-04 570909 500 191 64 245 +90.22 ± 15.17 1 15 95 134 5 +187.16 ± 35.14
398354 ncm-dbt-03 585379 500 193 57 250 +96.94 ± 12.49 0 4 107 138 1 +209.91 ± 32.37
398353 ncm-dbt-01 584579 500 187 75 238 +79.17 ± 13.45 0 12 115 122 1 +165.8 ± 31.55
398352 ncm-dbt-05 584664 500 198 74 228 +88.0 ± 13.97 1 12 99 138 0 +190.85 ± 34.36
398351 ncm-dbt-02 589197 500 189 65 246 +88.0 ± 14.7 2 13 95 139 1 +190.85 ± 35.14
398350 ncm-dbt-03 587197 500 196 69 235 +90.22 ± 14.16 0 14 97 137 2 +190.85 ± 34.75
398349 ncm-dbt-04 569789 500 188 69 243 +84.3 ± 14.76 0 18 98 131 3 +174.55 ± 34.58
398348 ncm-dbt-01 585464 500 209 57 234 +109.07 ± 13.73 0 7 89 149 5 +234.38 ± 36.22
398347 ncm-dbt-05 581277 500 198 75 227 +87.26 ± 14.25 1 12 102 133 2 +185.33 ± 33.81
398346 ncm-dbt-03 588387 500 197 70 233 +90.22 ± 14.01 0 13 99 136 2 +190.85 ± 34.36
398345 ncm-dbt-02 586943 500 189 66 245 +87.26 ± 14.1 1 13 98 138 0 +189.0 ± 34.56
398344 ncm-dbt-04 570709 500 187 56 257 +93.2 ± 13.44 0 9 103 136 2 +198.34 ± 33.48
398343 ncm-dbt-05 586520 500 197 64 239 +94.7 ± 14.09 1 10 96 141 2 +204.07 ± 34.89
398342 ncm-dbt-01 582819 500 196 63 241 +94.69 ± 13.46 0 9 101 138 2 +202.15 ± 33.85
398341 ncm-dbt-03 584579 500 197 71 232 +89.48 ± 13.53 0 11 103 135 1 +190.85 ± 33.57
398340 ncm-dbt-02 583447 500 202 65 233 +97.69 ± 13.34 0 9 96 144 1 +211.87 ± 34.83
398339 ncm-dbt-04 570909 500 202 80 218 +86.52 ± 13.78 1 10 106 132 1 +185.33 ± 33.03
398338 ncm-dbt-05 583405 500 187 68 245 +84.31 ± 13.88 0 15 101 134 0 +179.9 ± 34.03
398337 ncm-dbt-01 584159 500 189 78 233 +78.43 ± 14.31 0 17 107 124 2 +162.35 ± 33.02
398336 ncm-dbt-03 588174 500 182 71 247 +78.43 ± 13.58 0 12 117 119 2 +162.35 ± 31.23
398335 ncm-dbt-02 580572 500 183 55 262 +90.97 ± 14.02 1 11 98 139 1 +196.45 ± 34.53
398334 ncm-dbt-04 571953 500 191 67 242 +88.0 ± 13.81 0 13 101 135 1 +187.16 ± 33.99
398333 ncm-dbt-05 588132 500 199 71 230 +90.96 ± 13.72 0 10 105 132 3 +190.85 ± 33.16
398332 ncm-dbt-01 583070 500 188 56 256 +93.95 ± 12.96 0 8 102 140 0 +204.07 ± 33.61
398331 ncm-dbt-02 586012 500 195 65 240 +92.45 ± 13.59 0 10 102 136 2 +196.45 ± 33.71
398330 ncm-dbt-03 587537 500 195 67 238 +90.96 ± 14.91 0 19 86 143 2 +192.71 ± 36.85
398329 ncm-dbt-04 571873 500 197 58 245 +99.2 ± 13.83 0 11 91 146 2 +213.85 ± 35.9
398328 ncm-dbt-01 582027 500 184 69 247 +81.37 ± 14.4 1 15 103 130 1 +172.78 ± 33.69
398327 ncm-dbt-05 579744 500 177 59 264 +83.57 ± 14.74 2 14 99 134 1 +179.9 ± 34.4
398326 ncm-dbt-03 587282 500 194 68 238 +89.48 ± 14.73 2 12 96 138 2 +192.71 ± 34.94
398325 ncm-dbt-02 586097 500 195 74 231 +85.78 ± 14.51 0 19 91 140 0 +183.51 ± 35.86
398324 ncm-dbt-04 569270 500 204 77 219 +90.22 ± 12.57 0 6 111 133 0 +194.57 ± 31.84
398323 ncm-dbt-05 586901 500 200 64 236 +96.94 ± 13.65 0 9 99 139 3 +206.01 ± 34.24
398322 ncm-dbt-03 589240 500 203 60 237 +102.22 ± 14.02 0 12 85 151 2 +221.9 ± 37.21
398321 ncm-dbt-02 583614 500 199 79 222 +85.04 ± 14.2 0 15 102 131 2 +178.11 ± 33.85
398320 ncm-dbt-01 587367 500 199 63 238 +96.94 ± 13.33 0 10 94 146 0 +211.87 ± 35.26
398319 ncm-dbt-04 573204 500 196 67 237 +91.71 ± 13.57 0 10 103 135 2 +194.57 ± 33.53

Commit

Commit ID 344e89275abe2b67c0be6a5013def81725c5a5c2
Author Shawn Xu
Date 2025-02-02 12:44:22 UTC
Simplify Away Quadruple Extensions Passed Non-regression LTC: LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 95856 W: 24551 L: 24404 D: 46901 Ptnml(0-2): 85, 10621, 26364, 10778, 80 https://tests.stockfishchess.org/tests/view/679a9aedae346be6da0eebd6 Passed Non-regression VLTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 157536 W: 40000 L: 39921 D: 77615 Ptnml(0-2): 43, 16416, 45775, 16487, 47 https://tests.stockfishchess.org/tests/view/679aed8f51037ccaf3e30fbf Passed Non-regression VVLTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 51598 W: 13345 L: 13172 D: 25081 Ptnml(0-2): 0, 4735, 16162, 4896, 6 https://tests.stockfishchess.org/tests/view/679d368b0774dfd78deb0163 closes https://github.com/official-stockfish/Stockfish/pull/5843 Bench: 2399312
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