Dev Builds » 20251101-1034

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 06:45:26 581447 4004 1676 458 1870 +109.14 ± 4.72 0 56 694 1230 22 +239.42 ± 12.9
ncm-dbt-02 06:46:45 585973 4000 1670 431 1899 +111.27 ± 4.74 2 55 665 1258 20 +246.58 ± 13.19
ncm-dbt-03 06:46:30 585062 4000 1657 415 1928 +111.56 ± 4.63 0 48 681 1252 19 +247.14 ± 13.01
ncm-dbt-04 06:45:04 566498 4000 1654 441 1905 +108.78 ± 4.58 0 42 721 1219 18 +239.47 ± 12.6
ncm-dbt-05 06:46:53 582262 3996 1683 445 1868 +111.3 ± 4.63 0 46 688 1244 20 +246.09 ± 12.93
20000 8340 2190 9470 +110.41 ± 2.08 2 247 3449 6203 99 +243.72 ± 5.78

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
438924 ncm-dbt-01 578630 4 2 0 2 +190.27 ± 27.79 0 0 0 2 0 +1199.83 ± 312.71
438923 ncm-dbt-05 578383 496 210 59 227 +109.23 ± 13.8 0 9 82 154 3 +239.08 ± 37.89
438922 ncm-dbt-02 587537 500 207 56 237 +108.3 ± 13.4 0 6 91 149 4 +234.38 ± 35.72
438921 ncm-dbt-03 583740 500 208 47 245 +116.0 ± 13.02 0 5 82 160 3 +258.75 ± 37.76
438920 ncm-dbt-04 566336 500 203 58 239 +103.73 ± 12.53 0 4 98 147 1 +228.08 ± 34.09
438919 ncm-dbt-01 580530 500 214 58 228 +112.14 ± 13.73 0 6 88 150 6 +240.82 ± 36.39
438918 ncm-dbt-02 587367 500 214 51 235 +117.55 ± 13.18 0 6 78 163 3 +263.42 ± 38.85
438917 ncm-dbt-05 580987 500 206 55 239 +108.3 ± 13.06 0 5 92 150 3 +236.51 ± 35.43
438916 ncm-dbt-03 585717 500 207 60 233 +105.25 ± 13.56 0 9 87 152 2 +230.16 ± 36.73
438915 ncm-dbt-01 581194 500 207 47 246 +115.22 ± 13.38 0 8 76 164 2 +258.75 ± 39.42
438914 ncm-dbt-04 564605 500 202 55 243 +105.25 ± 13.22 0 8 88 153 1 +232.26 ± 36.48
438913 ncm-dbt-02 586435 500 204 65 231 +99.2 ± 13.02 0 6 101 141 2 +213.85 ± 33.67
438912 ncm-dbt-05 583908 500 208 68 224 +99.95 ± 12.86 0 6 99 144 1 +217.85 ± 34.06
438911 ncm-dbt-03 583824 500 201 46 253 +111.37 ± 12.87 0 5 87 156 2 +247.41 ± 36.56
438910 ncm-dbt-01 582819 500 214 63 223 +108.3 ± 12.88 0 6 88 155 1 +240.82 ± 36.39
438909 ncm-dbt-04 567324 500 200 49 251 +108.3 ± 13.06 0 3 98 144 5 +232.26 ± 33.99
438908 ncm-dbt-02 584832 500 202 54 244 +106.01 ± 12.88 0 6 91 152 1 +234.38 ± 35.72
438907 ncm-dbt-05 583447 500 210 49 241 +116.0 ± 12.47 0 4 82 163 1 +263.42 ± 37.69
438906 ncm-dbt-03 585295 500 210 50 240 +115.22 ± 12.67 0 3 87 157 3 +256.44 ± 36.38
438905 ncm-dbt-01 582569 500 199 56 245 +102.22 ± 13.37 0 9 90 150 1 +223.94 ± 36.07
438904 ncm-dbt-04 567284 500 203 55 242 +106.01 ± 13.22 0 6 93 148 3 +230.16 ± 35.29
438903 ncm-dbt-02 585717 500 204 56 240 +106.01 ± 13.72 1 7 87 153 2 +234.38 ± 36.71
438902 ncm-dbt-05 581610 500 213 51 236 +116.77 ± 13.01 0 5 81 161 3 +261.07 ± 38.02
438901 ncm-dbt-04 563002 500 209 52 239 +112.91 ± 12.69 0 5 84 160 1 +254.16 ± 37.27
438900 ncm-dbt-03 582903 500 202 51 247 +108.3 ± 13.4 0 7 88 152 3 +236.51 ± 36.44
438899 ncm-dbt-01 583279 500 201 52 247 +106.77 ± 13.89 0 10 84 153 3 +232.26 ± 37.43
438898 ncm-dbt-04 567878 500 212 64 224 +106.01 ± 12.88 0 7 88 155 0 +236.51 ± 36.44
438897 ncm-dbt-05 582318 500 208 70 222 +98.44 ± 13.51 0 8 99 140 3 +209.91 ± 34.19
438896 ncm-dbt-02 587367 500 213 50 237 +117.55 ± 13.53 0 9 71 168 2 +265.78 ± 40.81
438895 ncm-dbt-01 582110 500 213 55 232 +113.68 ± 12.5 0 2 91 154 3 +251.89 ± 35.35
438894 ncm-dbt-03 585632 500 210 62 228 +106.01 ± 13.39 0 8 88 152 2 +232.26 ± 36.48
438893 ncm-dbt-05 581985 500 218 53 229 +119.11 ± 13.34 0 6 77 163 4 +265.78 ± 39.12
438892 ncm-dbt-01 579331 500 216 68 216 +106.01 ± 13.56 0 8 89 150 3 +230.16 ± 36.26
438891 ncm-dbt-04 568156 500 212 60 228 +109.07 ± 12.88 0 4 93 150 3 +238.66 ± 35.13
438890 ncm-dbt-02 583279 500 216 40 244 +127.76 ± 13.57 1 5 65 175 4 +295.94 ± 42.75
438889 ncm-dbt-03 585126 500 205 46 249 +114.45 ± 12.12 0 2 88 159 1 +258.75 ± 36.04
438888 ncm-dbt-01 582569 500 210 59 231 +108.3 ± 13.4 0 7 88 152 3 +236.51 ± 36.44
438887 ncm-dbt-04 567403 500 213 48 239 +119.11 ± 13.17 0 5 79 162 4 +265.78 ± 38.54
438886 ncm-dbt-05 585464 500 210 40 250 +123.02 ± 12.37 0 3 76 169 2 +282.94 ± 39.21
438885 ncm-dbt-02 585253 500 210 59 231 +108.3 ± 13.73 0 10 81 157 2 +238.66 ± 38.15
438884 ncm-dbt-03 588260 500 214 53 233 +116.0 ± 13.71 0 9 74 164 3 +258.75 ± 39.96

Commit

Commit ID e9674a788843ea886d382e541b354f41a585df25
Author Carlos Esparza
Date 2025-11-01 10:34:54 UTC
simplify make_index() passed non-regression STC: https://tests.stockfishchess.org/tests/view/68fdb409637acd2a11e72f11 LLR: 3.08 (-2.94,2.94) <-1.75,0.25> Total: 95008 W: 24837 L: 24677 D: 45494 Ptnml(0-2): 268, 10024, 26775, 10154, 283 closes https://github.com/official-stockfish/Stockfish/pull/6384 no functional change
Copyright 2011–2025 Next Chess Move LLC