Dev Builds » 20250525-1859

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 06:46:37 583142 3990 1590 447 1953 +102.39 ± 4.79 2 68 724 1187 14 +223.39 ± 12.63
ncm-dbt-02 06:46:20 584204 4000 1593 478 1929 +99.48 ± 4.8 0 72 760 1149 19 +213.85 ± 12.31
ncm-dbt-03 06:45:15 584055 4000 1623 460 1917 +104.02 ± 4.72 1 62 724 1199 14 +227.56 ± 12.62
ncm-dbt-04 06:46:33 568918 4016 1641 471 1904 +104.24 ± 4.75 0 71 710 1213 14 +227.92 ± 12.77
ncm-dbt-05 06:46:45 583896 3994 1624 444 1926 +105.8 ± 4.72 0 63 706 1213 15 +231.94 ± 12.79
20000 8071 2300 9629 +103.18 ± 2.13 3 336 3624 5961 76 +224.87 ± 5.64

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
415276 ncm-dbt-04 570869 16 7 2 7 +112.26 ± 65.75 0 0 3 5 0 +254.61 ± 287.37
415275 ncm-dbt-01 581693 490 208 48 234 +117.76 ± 13.53 1 6 71 166 1 +271.21 ± 40.83
415274 ncm-dbt-05 580862 494 198 51 245 +106.61 ± 13.83 0 9 85 150 3 +231.74 ± 37.18
415273 ncm-dbt-02 581028 500 204 59 237 +103.73 ± 14.19 0 12 84 151 3 +223.94 ± 37.43
415272 ncm-dbt-03 583824 500 212 63 225 +106.77 ± 13.23 0 6 92 149 3 +232.26 ± 35.5
415271 ncm-dbt-04 570188 500 209 57 234 +109.07 ± 13.05 0 8 82 160 0 +245.2 ± 37.88
415270 ncm-dbt-01 582444 500 198 52 250 +104.49 ± 12.53 0 5 94 151 0 +232.26 ± 35.0
415269 ncm-dbt-05 585295 500 212 53 235 +114.45 ± 13.03 0 6 81 161 2 +256.44 ± 38.07
415268 ncm-dbt-02 587113 500 189 56 255 +94.69 ± 13.3 0 9 100 140 1 +204.07 ± 34.04
415267 ncm-dbt-03 582945 500 213 48 239 +119.11 ± 12.24 0 3 80 166 1 +273.0 ± 38.12
415266 ncm-dbt-04 568713 500 205 61 234 +102.97 ± 13.38 0 10 86 154 0 +228.08 ± 36.98
415265 ncm-dbt-01 582444 500 199 48 253 +108.3 ± 13.06 0 7 86 156 1 +240.82 ± 36.9
415264 ncm-dbt-02 585084 500 211 61 228 +107.54 ± 13.4 0 7 89 151 3 +234.38 ± 36.22
415263 ncm-dbt-05 585801 500 197 66 237 +93.2 ± 13.44 0 11 97 142 0 +202.15 ± 34.7
415262 ncm-dbt-03 584201 500 200 48 252 +109.07 ± 12.88 0 6 87 156 1 +243.0 ± 36.62
415261 ncm-dbt-04 567007 500 206 62 232 +102.97 ± 12.7 0 5 97 147 1 +226.0 ± 34.38
415260 ncm-dbt-01 582027 500 203 53 244 +107.54 ± 13.56 0 7 90 149 4 +232.26 ± 35.99
415259 ncm-dbt-02 586139 500 195 54 251 +100.7 ± 13.03 0 8 93 149 0 +221.9 ± 35.4
415258 ncm-dbt-05 586604 500 209 58 233 +108.3 ± 13.23 0 7 87 154 2 +238.66 ± 36.67
415257 ncm-dbt-03 584243 500 209 57 234 +109.07 ± 14.53 1 11 76 159 3 +240.82 ± 39.35
415256 ncm-dbt-04 568037 500 201 50 249 +108.3 ± 13.89 0 10 82 155 3 +236.51 ± 37.9
415255 ncm-dbt-01 583196 500 192 58 250 +95.44 ± 14.55 0 16 86 146 2 +204.07 ± 36.93
415254 ncm-dbt-02 581028 500 196 61 243 +96.19 ± 13.48 0 10 96 143 1 +207.95 ± 34.86
415253 ncm-dbt-05 578136 500 202 49 249 +109.83 ± 12.88 0 3 95 148 4 +238.66 ± 34.61
415252 ncm-dbt-03 583237 500 194 53 253 +100.7 ± 13.53 0 10 90 149 1 +219.87 ± 36.1
415251 ncm-dbt-04 567720 500 200 60 240 +99.95 ± 13.36 0 9 93 147 1 +217.85 ± 35.44
415250 ncm-dbt-01 585506 500 204 62 234 +101.46 ± 13.53 1 7 92 149 1 +223.94 ± 35.61
415249 ncm-dbt-02 583866 500 199 65 236 +95.44 ± 14.4 0 11 100 133 6 +196.45 ± 34.12
415248 ncm-dbt-05 583279 500 211 53 236 +113.68 ± 13.55 0 9 76 163 2 +254.16 ± 39.42
415247 ncm-dbt-03 585506 500 198 70 232 +90.96 ± 14.17 0 13 99 135 3 +190.85 ± 34.36
415246 ncm-dbt-04 569270 500 204 53 243 +108.3 ± 14.52 0 12 80 153 5 +232.26 ± 38.36
415245 ncm-dbt-02 583237 500 209 63 228 +104.49 ± 13.39 0 7 93 147 3 +226.0 ± 35.35
415244 ncm-dbt-05 581569 500 194 58 248 +96.94 ± 13.16 0 9 96 145 0 +211.87 ± 34.83
415243 ncm-dbt-01 581943 500 192 69 239 +87.26 ± 13.49 0 10 109 129 2 +183.51 ± 32.46
415242 ncm-dbt-03 584790 500 194 62 244 +93.95 ± 12.8 0 7 104 139 0 +204.07 ± 33.17
415241 ncm-dbt-04 568752 500 201 63 236 +98.44 ± 13.51 0 8 99 140 3 +209.91 ± 34.19
415240 ncm-dbt-02 586139 500 190 59 251 +93.2 ± 13.28 0 8 105 135 2 +198.34 ± 33.06
415239 ncm-dbt-01 585885 500 194 57 249 +97.69 ± 13.82 0 10 96 141 3 +207.95 ± 34.86
415238 ncm-dbt-04 569709 500 208 63 229 +103.73 ± 13.38 0 9 88 152 1 +228.08 ± 36.51
415237 ncm-dbt-05 589625 500 201 56 243 +103.73 ± 13.55 0 9 89 150 2 +226.0 ± 36.29
415236 ncm-dbt-03 583698 500 203 59 238 +102.97 ± 13.04 0 6 96 146 2 +223.94 ± 34.66

Commit

Commit ID b1b5893a8e344155d01a1658b79670a8ed1fd160
Author Nonlinear2
Date 2025-05-25 18:59:27 UTC
Minor code improvements - Remove / add empty lines - fix the `ttcapture` comment - remove the `bonus` variable for `ttMoveHistory` - remove unnecessary parentheses / brackets - refactor the movepick good quiet stage - rename `endMoves` to `endCur`, as the previous name suggests that it points to the end of all generated moves, which it does not. closes https://github.com/official-stockfish/Stockfish/pull/6089 No functional change. Co-Authored-By: xu-shawn <50402888+xu-shawn@users.noreply.github.com>
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