Dev Builds » 20251228-1350

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 06:44:49 579705 4000 1749 369 1882 +124.99 ± 4.51 0 37 568 1373 22 +287.42 ± 14.28
ncm-dbt-02 06:44:48 585478 4000 1715 345 1940 +124.01 ± 4.52 0 35 584 1357 24 +283.58 ± 14.08
ncm-dbt-03 06:46:08 585842 4010 1750 389 1871 +122.79 ± 4.61 0 33 615 1320 37 +275.67 ± 13.69
ncm-dbt-04 06:44:21 566185 4000 1728 382 1890 +121.65 ± 4.5 0 31 615 1331 23 +276.38 ± 13.69
ncm-dbt-05 06:44:26 582638 3990 1704 388 1898 +119.04 ± 4.7 0 43 627 1291 34 +264.95 ± 13.58
20000 8646 1873 9481 +122.49 ± 2.04 0 179 3009 6672 140 +277.49 ± 6.19

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
447851 ncm-dbt-03 585590 10 4 1 5 +107.43 ± 84.35 0 0 2 3 0 +240.65 ± 570.11
447850 ncm-dbt-05 583740 490 217 58 215 +116.96 ± 12.8 0 1 89 150 5 +256.77 ± 35.62
447849 ncm-dbt-02 586816 500 204 37 259 +120.67 ± 12.22 0 4 75 171 0 +280.42 ± 39.57
447848 ncm-dbt-01 579289 500 225 38 237 +136.56 ± 12.18 0 2 63 181 4 +324.17 ± 43.32
447847 ncm-dbt-04 565233 500 204 46 250 +113.68 ± 12.68 0 3 89 155 3 +251.89 ± 35.92
447846 ncm-dbt-03 585928 500 224 57 219 +120.67 ± 13.15 0 3 83 158 6 +265.78 ± 37.35
447845 ncm-dbt-05 581485 500 219 40 241 +130.14 ± 13.52 0 6 65 173 6 +295.94 ± 42.75
447844 ncm-dbt-02 583112 500 220 40 240 +130.94 ± 12.56 0 2 71 172 5 +301.33 ± 40.6
447843 ncm-dbt-01 576701 500 216 56 228 +115.22 ± 13.2 0 8 75 166 1 +261.07 ± 39.69
447842 ncm-dbt-03 588089 500 221 40 239 +131.74 ± 13.67 0 4 70 167 9 +293.29 ± 41.07
447841 ncm-dbt-04 567086 500 229 46 225 +133.34 ± 12.09 0 3 63 182 2 +318.25 ± 43.39
447840 ncm-dbt-05 576946 500 212 50 238 +116.77 ± 12.83 0 5 80 163 2 +263.42 ± 38.27
447839 ncm-dbt-02 585885 500 220 49 231 +123.81 ± 13.1 0 7 67 174 2 +285.49 ± 42.08
447838 ncm-dbt-01 580447 500 221 41 238 +130.94 ± 11.96 0 3 65 181 1 +312.48 ± 42.67
447837 ncm-dbt-04 563705 500 220 54 226 +119.89 ± 12.04 0 2 81 166 1 +275.45 ± 37.75
447836 ncm-dbt-03 586139 500 225 38 237 +136.56 ± 13.36 0 5 60 178 7 +315.35 ± 44.57
447835 ncm-dbt-05 581236 500 211 41 248 +123.02 ± 13.65 0 6 74 164 6 +273.0 ± 39.95
447834 ncm-dbt-02 588558 500 216 43 241 +125.38 ± 13.25 0 7 66 174 3 +288.06 ± 42.4
447833 ncm-dbt-01 579868 500 213 46 241 +120.67 ± 13.15 0 6 74 167 3 +273.0 ± 39.95
447832 ncm-dbt-04 566178 500 221 49 230 +124.6 ± 12.9 0 5 71 171 3 +285.49 ± 40.81
447831 ncm-dbt-03 586181 500 208 50 242 +113.68 ± 13.04 0 5 85 157 3 +251.89 ± 37.03
447830 ncm-dbt-05 584034 500 211 48 241 +117.55 ± 13.36 0 7 76 164 3 +263.42 ± 39.41
447829 ncm-dbt-02 585421 500 199 55 246 +102.97 ± 13.38 0 8 92 148 2 +223.94 ± 35.61
447828 ncm-dbt-04 565902 500 218 43 239 +126.97 ± 13.58 0 9 60 178 3 +293.29 ± 44.36
447827 ncm-dbt-03 582277 500 210 46 244 +118.33 ± 12.81 0 5 78 165 2 +268.17 ± 38.8
447826 ncm-dbt-01 580655 500 222 51 227 +123.81 ± 12.54 0 4 73 171 2 +285.49 ± 40.16
447825 ncm-dbt-05 583070 500 215 41 244 +126.17 ± 13.77 0 6 71 166 7 +280.42 ± 40.83
447824 ncm-dbt-02 584117 500 222 38 240 +134.15 ± 12.47 0 3 64 179 4 +315.35 ± 43.03
447823 ncm-dbt-04 567363 500 218 51 231 +120.67 ± 12.78 0 3 81 162 4 +270.57 ± 37.86
447822 ncm-dbt-03 586223 500 222 49 229 +125.38 ± 12.7 0 1 81 162 6 +280.42 ± 37.62
447821 ncm-dbt-01 579578 500 225 42 233 +133.34 ± 12.49 0 2 68 175 5 +309.64 ± 41.56
447820 ncm-dbt-05 579083 500 208 51 241 +112.91 ± 12.32 0 2 91 155 2 +251.89 ± 35.35
447819 ncm-dbt-02 583950 500 212 46 242 +119.89 ± 12.42 0 2 83 162 3 +270.57 ± 37.24
447818 ncm-dbt-04 567878 500 209 40 251 +122.24 ± 12.38 0 2 80 165 3 +277.93 ± 38.02
447817 ncm-dbt-01 579413 500 214 52 234 +116.77 ± 13.71 0 8 76 162 4 +258.75 ± 39.42
447816 ncm-dbt-03 585506 500 220 55 225 +119.11 ± 12.8 0 5 77 166 2 +270.57 ± 39.07
447815 ncm-dbt-05 591512 500 211 59 230 +109.07 ± 13.89 0 10 81 156 3 +238.66 ± 38.15
447814 ncm-dbt-02 585970 500 222 37 241 +134.95 ± 12.44 0 2 66 177 5 +315.35 ± 42.24
447813 ncm-dbt-04 566138 500 209 53 238 +112.14 ± 13.04 0 4 90 152 4 +245.2 ± 35.79
447812 ncm-dbt-01 581693 500 213 43 244 +123.02 ± 12.56 0 4 74 170 2 +282.94 ± 39.86
447811 ncm-dbt-03 586646 500 216 53 231 +117.55 ± 12.82 0 5 79 164 2 +265.78 ± 38.54

Commit

Commit ID 9d69577e1937aa532a832040c1a4616a4971c508
Author FauziAkram
Date 2025-12-28 13:50:36 UTC
Removing redundant parentheses closes https://github.com/official-stockfish/Stockfish/pull/6490 No functional change
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