Dev Builds » 20250602-1940

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 06:46:45 576645 4016 1663 457 1896 +107.65 ± 4.61 0 46 729 1214 19 +236.05 ± 12.54
ncm-dbt-02 06:44:25 586489 4000 1667 464 1869 +107.82 ± 4.67 1 57 691 1240 11 +238.93 ± 12.93
ncm-dbt-03 06:44:07 583782 4000 1632 463 1905 +104.59 ± 4.64 0 53 740 1192 15 +228.6 ± 12.45
ncm-dbt-04 06:45:46 568466 4000 1633 465 1902 +104.49 ± 4.8 2 63 721 1193 21 +227.3 ± 12.65
ncm-dbt-05 06:46:40 580498 3984 1616 468 1900 +103.03 ± 4.82 0 76 707 1194 15 +224.34 ± 12.8
20000 8211 2317 9472 +105.52 ± 2.11 3 295 3588 6033 81 +231.0 ± 5.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
416639 ncm-dbt-01 576905 16 7 1 8 +136.89 ± 61.78 0 0 2 6 0 +337.87 ± 515.83
416638 ncm-dbt-05 579578 484 200 54 230 +108.17 ± 13.85 0 9 80 151 2 +238.14 ± 38.38
416637 ncm-dbt-04 567997 500 217 65 218 +109.07 ± 13.4 0 9 81 159 1 +243.0 ± 38.14
416636 ncm-dbt-02 585464 500 207 57 236 +107.54 ± 13.06 0 5 93 149 3 +234.38 ± 35.22
416635 ncm-dbt-03 582277 500 204 57 239 +105.25 ± 13.05 0 5 96 146 3 +228.08 ± 34.59
416634 ncm-dbt-01 573851 500 201 56 243 +103.73 ± 13.05 0 6 95 147 2 +226.0 ± 34.87
416633 ncm-dbt-05 583321 500 197 66 237 +93.2 ± 13.91 0 12 97 139 2 +198.34 ± 34.72
416632 ncm-dbt-04 568077 500 208 51 241 +112.91 ± 12.86 0 4 88 155 3 +249.64 ± 36.24
416631 ncm-dbt-03 585000 500 206 66 228 +99.95 ± 13.36 0 9 93 147 1 +217.85 ± 35.44
416630 ncm-dbt-02 585211 500 213 49 238 +118.33 ± 12.63 0 4 80 164 2 +268.17 ± 38.21
416629 ncm-dbt-01 574500 500 203 60 237 +102.22 ± 12.87 0 5 99 144 2 +221.9 ± 33.98
416628 ncm-dbt-05 582027 500 200 60 240 +99.95 ± 13.68 0 11 89 149 1 +217.85 ± 36.33
416627 ncm-dbt-03 580406 500 215 66 219 +106.77 ± 13.72 0 7 92 146 5 +228.08 ± 35.56
416626 ncm-dbt-04 569190 500 206 54 240 +109.07 ± 13.73 1 7 83 157 2 +243.0 ± 37.64
416625 ncm-dbt-02 584958 500 215 50 235 +119.11 ± 12.43 1 2 78 169 0 +277.93 ± 38.66
416624 ncm-dbt-01 578013 500 205 58 237 +105.25 ± 13.39 0 8 89 151 2 +230.16 ± 36.26
416623 ncm-dbt-05 580323 500 203 61 236 +101.46 ± 13.37 0 9 91 149 1 +221.9 ± 35.86
416622 ncm-dbt-03 583782 500 208 49 243 +114.45 ± 12.3 0 2 89 157 2 +256.44 ± 35.8
416621 ncm-dbt-04 568236 500 192 60 248 +93.95 ± 14.53 0 15 91 141 3 +198.34 ± 35.92
416620 ncm-dbt-01 576905 500 215 68 217 +105.25 ± 13.22 0 7 91 150 2 +230.16 ± 35.78
416619 ncm-dbt-02 586646 500 200 57 243 +102.22 ± 13.54 0 9 91 148 2 +221.9 ± 35.86
416618 ncm-dbt-05 577766 500 212 51 237 +116.0 ± 13.88 0 8 78 159 5 +254.16 ± 38.89
416617 ncm-dbt-04 568514 500 198 47 255 +108.3 ± 13.56 0 8 86 153 3 +236.51 ± 36.93
416616 ncm-dbt-03 582402 500 202 62 236 +99.95 ± 12.51 0 4 103 142 1 +217.85 ± 33.11
416615 ncm-dbt-01 577725 500 211 56 233 +111.37 ± 13.39 0 5 90 150 5 +240.82 ± 35.87
416614 ncm-dbt-02 586858 500 215 68 217 +105.25 ± 13.05 0 7 90 152 1 +232.26 ± 35.99
416613 ncm-dbt-03 585506 500 201 65 234 +96.94 ± 13.49 0 11 92 147 0 +211.87 ± 35.7
416612 ncm-dbt-05 579166 500 196 55 249 +100.7 ± 13.2 0 9 91 150 0 +221.9 ± 35.86
416611 ncm-dbt-04 570029 500 211 63 226 +106.01 ± 13.56 0 7 92 147 4 +228.08 ± 35.56
416610 ncm-dbt-01 576578 500 202 57 241 +103.73 ± 12.88 0 6 94 149 1 +228.08 ± 35.08
416609 ncm-dbt-02 587113 500 198 66 236 +93.95 ± 14.07 0 14 91 144 1 +202.15 ± 35.92
416608 ncm-dbt-05 580033 500 209 68 223 +100.7 ± 13.85 0 11 89 148 2 +217.85 ± 36.33
416607 ncm-dbt-03 585759 500 193 46 261 +105.25 ± 13.56 0 9 87 152 2 +230.16 ± 36.73
416606 ncm-dbt-01 576578 500 215 61 224 +110.6 ± 13.39 0 7 85 155 3 +243.0 ± 37.13
416605 ncm-dbt-02 587622 500 215 49 236 +119.89 ± 13.16 0 7 72 169 2 +273.0 ± 40.54
416604 ncm-dbt-04 565981 500 208 75 217 +94.7 ± 13.46 1 6 104 137 2 +204.07 ± 33.17
416603 ncm-dbt-03 585126 500 203 52 245 +108.3 ± 12.88 0 6 88 155 1 +240.82 ± 36.39
416602 ncm-dbt-02 588047 500 204 68 228 +96.94 ± 13.16 0 9 96 145 0 +211.87 ± 34.83
416601 ncm-dbt-04 569709 500 193 50 257 +102.22 ± 13.37 0 7 96 144 3 +219.87 ± 34.73
416600 ncm-dbt-01 578753 500 204 40 256 +118.33 ± 12.26 0 2 84 162 2 +268.17 ± 36.99
416599 ncm-dbt-05 581777 500 199 53 248 +104.49 ± 13.22 0 7 92 149 2 +228.08 ± 35.56

Commit

Commit ID 5695486db99de3883188331eb1c7565e68d092cf
Author Carlos Esparza
Date 2025-06-02 19:40:13 UTC
Fix outdated comment closes https://github.com/official-stockfish/Stockfish/pull/6108 No functional change
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