Dev Builds » 20250804-1253

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 06:43:50 584772 4016 1657 474 1885 +105.47 ± 4.7 0 55 737 1194 22 +229.22 ± 12.49
ncm-dbt-02 06:44:39 586673 4016 1656 471 1889 +105.66 ± 4.73 1 58 724 1205 20 +230.52 ± 12.62
ncm-dbt-03 06:42:55 583906 3984 1666 456 1862 +108.96 ± 4.78 0 60 686 1222 24 +238.33 ± 12.98
ncm-dbt-04 06:42:09 569214 4000 1657 405 1938 +112.52 ± 4.66 0 45 684 1245 26 +247.97 ± 12.97
ncm-dbt-05 06:42:54 578801 3984 1649 445 1890 +108.38 ± 4.79 0 68 670 1236 18 +238.33 ± 13.16
20000 8285 2251 9464 +108.19 ± 2.12 1 286 3501 6102 110 +236.78 ± 5.74

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
425742 ncm-dbt-02 586477 16 8 3 5 +112.26 ± 65.75 0 0 3 5 0 +254.61 ± 287.37
425741 ncm-dbt-01 584916 16 7 1 8 +136.89 ± 61.78 0 0 2 6 0 +337.87 ± 515.83
425740 ncm-dbt-05 575883 484 193 52 239 +104.23 ± 13.83 0 9 85 146 2 +227.24 ± 37.17
425739 ncm-dbt-03 583824 484 201 45 238 +116.12 ± 13.65 0 8 72 160 2 +261.29 ± 40.53
425738 ncm-dbt-04 569749 500 204 55 241 +106.77 ± 13.23 0 4 98 143 5 +228.08 ± 34.09
425737 ncm-dbt-02 589582 500 200 60 240 +99.95 ± 14.0 0 11 91 145 3 +213.85 ± 35.9
425736 ncm-dbt-01 585632 500 209 55 236 +110.6 ± 12.52 0 2 95 150 3 +243.0 ± 34.49
425735 ncm-dbt-05 576987 500 200 61 239 +99.2 ± 14.6 0 12 93 139 6 +206.01 ± 35.51
425734 ncm-dbt-03 580738 500 202 59 239 +102.22 ± 12.52 0 5 97 148 0 +226.0 ± 34.38
425733 ncm-dbt-04 570188 500 214 55 231 +114.45 ± 13.21 0 5 85 156 4 +251.89 ± 37.03
425732 ncm-dbt-02 586097 500 213 60 227 +109.83 ± 13.56 0 7 87 152 4 +238.66 ± 36.67
425731 ncm-dbt-01 583196 500 218 62 220 +112.14 ± 13.22 0 4 91 150 5 +243.0 ± 35.57
425730 ncm-dbt-03 582360 500 214 70 216 +102.97 ± 13.38 0 8 92 148 2 +223.94 ± 35.61
425729 ncm-dbt-05 579166 500 213 62 225 +108.3 ± 13.73 0 8 87 151 4 +234.38 ± 36.71
425728 ncm-dbt-04 566296 500 219 52 229 +120.67 ± 12.97 0 5 76 166 3 +273.0 ± 39.35
425727 ncm-dbt-02 587622 500 205 57 238 +106.01 ± 13.39 0 7 91 149 3 +230.16 ± 35.78
425726 ncm-dbt-01 584537 500 186 55 259 +93.2 ± 13.75 0 12 96 141 1 +200.24 ± 34.91
425725 ncm-dbt-05 581444 500 206 58 236 +106.01 ± 13.39 0 9 85 155 1 +234.38 ± 37.19
425724 ncm-dbt-03 585885 500 210 48 242 +116.77 ± 13.19 0 6 79 162 3 +261.07 ± 38.58
425723 ncm-dbt-04 568315 500 208 54 238 +110.6 ± 13.05 0 5 89 153 3 +243.0 ± 36.1
425722 ncm-dbt-02 586012 500 197 52 251 +103.73 ± 12.88 0 6 94 149 1 +228.08 ± 35.08
425721 ncm-dbt-01 585674 500 205 67 228 +98.44 ± 13.98 0 12 90 146 2 +211.87 ± 36.13
425720 ncm-dbt-03 584706 500 216 57 227 +114.45 ± 14.38 0 12 71 163 4 +251.89 ± 40.68
425719 ncm-dbt-05 579289 500 203 54 243 +106.77 ± 13.23 0 9 83 158 0 +238.66 ± 37.66
425718 ncm-dbt-04 568474 500 207 53 240 +110.6 ± 13.22 0 7 84 157 2 +245.2 ± 37.37
425717 ncm-dbt-02 585253 500 206 55 239 +108.3 ± 12.71 0 5 90 154 1 +240.82 ± 35.87
425716 ncm-dbt-01 584285 500 218 56 226 +116.77 ± 13.71 0 7 79 159 5 +256.44 ± 38.62
425715 ncm-dbt-05 576455 500 205 59 236 +104.49 ± 13.39 0 8 90 150 2 +228.08 ± 36.04
425714 ncm-dbt-03 583656 500 208 65 227 +102.22 ± 13.37 0 7 96 144 3 +219.87 ± 34.73
425713 ncm-dbt-04 568395 500 204 50 246 +110.6 ± 13.22 0 7 84 157 2 +245.2 ± 37.37
425712 ncm-dbt-02 586816 500 219 63 218 +112.14 ± 13.39 0 5 89 151 5 +243.0 ± 36.1
425711 ncm-dbt-01 585590 500 207 69 224 +98.44 ± 13.18 0 6 103 138 3 +209.91 ± 33.29
425710 ncm-dbt-05 579992 500 214 44 242 +123.02 ± 12.74 0 5 72 171 2 +282.94 ± 40.5
425709 ncm-dbt-03 585548 500 197 48 255 +106.77 ± 13.72 0 8 89 149 4 +230.16 ± 36.26
425708 ncm-dbt-04 571632 500 200 46 254 +110.6 ± 13.56 0 8 83 156 3 +243.0 ± 37.64
425707 ncm-dbt-01 585126 500 210 66 224 +102.97 ± 13.21 0 7 94 147 2 +223.94 ± 35.14
425706 ncm-dbt-02 584369 500 198 59 243 +99.2 ± 13.67 1 9 90 150 0 +219.87 ± 36.1
425705 ncm-dbt-03 584537 500 218 64 218 +110.6 ± 13.73 0 6 90 148 6 +236.51 ± 35.94
425704 ncm-dbt-05 581194 500 215 55 230 +115.22 ± 13.2 0 8 75 166 1 +261.07 ± 39.69
425703 ncm-dbt-04 570669 500 201 40 259 +116.0 ± 13.02 0 4 85 157 4 +256.44 ± 36.95
425702 ncm-dbt-01 583992 500 197 43 260 +110.6 ± 12.7 0 5 87 157 1 +247.41 ± 36.56
425701 ncm-dbt-02 587834 500 210 62 228 +106.01 ± 13.56 0 8 89 150 3 +230.16 ± 36.26

Commit

Commit ID a6e34f128f185d9772e6b3ecc7fdbff448444718
Author Joost VandeVondele
Date 2025-08-04 12:53:49 UTC
Fix icx profile-build fixes the issue pointed out in https://github.com/official-stockfish/Stockfish/pull/6202 closes https://github.com/official-stockfish/Stockfish/pull/6203 No functional change
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