Dev Builds » 20260703-1825

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 06:45:41 583496 4000 1796 325 1879 +134.05 ± 4.42 0 21 523 1420 36 +313.55 ± 14.87
ncm-dbt-02 06:45:51 590335 4010 1791 327 1892 +132.98 ± 4.37 0 20 532 1422 31 +311.56 ± 14.73
ncm-dbt-03 06:45:58 584042 4000 1801 318 1881 +135.25 ± 4.45 0 23 511 1426 40 +316.43 ± 15.05
ncm-dbt-04 06:44:00 566969 4002 1781 322 1899 +132.77 ± 4.35 0 18 536 1417 30 +311.16 ± 14.66
ncm-dbt-05 06:45:09 584083 3988 1789 318 1881 +134.49 ± 4.42 1 18 520 1419 36 +315.46 ± 14.9
20000 8958 1610 9432 +133.91 ± 1.97 1 100 2622 7104 173 +313.62 ± 6.63

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
476949 ncm-dbt-04 568355 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
476948 ncm-dbt-02 590224 10 5 0 5 +190.62 ± 11.11 0 0 0 5 0 +1199.83 ± 231.31
476947 ncm-dbt-05 578383 488 223 38 227 +138.63 ± 12.06 0 2 58 181 3 +334.81 ± 45.27
476946 ncm-dbt-01 582152 500 231 47 222 +134.15 ± 13.05 0 2 70 170 8 +304.07 ± 40.91
476945 ncm-dbt-03 584748 500 218 36 246 +132.54 ± 11.7 0 2 65 182 1 +318.25 ± 42.59
476944 ncm-dbt-02 590481 500 224 51 225 +125.38 ± 12.12 0 2 75 171 2 +290.66 ± 39.4
476943 ncm-dbt-04 569230 500 207 38 255 +122.24 ± 12.94 0 3 80 162 5 +273.0 ± 38.12
476942 ncm-dbt-05 581985 500 233 37 230 +143.89 ± 12.3 0 3 53 189 5 +349.43 ± 47.56
476941 ncm-dbt-01 584285 500 224 46 230 +129.35 ± 13.17 0 2 76 164 8 +288.06 ± 39.11
476940 ncm-dbt-03 583866 500 224 35 241 +138.18 ± 11.91 0 3 57 188 2 +336.46 ± 45.77
476939 ncm-dbt-04 563314 500 226 41 233 +134.95 ± 12.24 0 0 71 173 6 +312.47 ± 40.3
476938 ncm-dbt-02 588813 500 227 43 230 +134.15 ± 12.67 0 4 62 180 4 +315.35 ± 43.81
476937 ncm-dbt-05 583740 500 221 42 237 +130.14 ± 12.59 0 4 66 177 3 +304.07 ± 42.38
476936 ncm-dbt-01 583028 500 233 38 229 +143.07 ± 12.75 0 3 56 184 7 +339.63 ± 46.2
476935 ncm-dbt-03 585632 500 222 40 238 +132.54 ± 13.1 0 3 69 171 7 +301.33 ± 41.33
476934 ncm-dbt-02 592547 500 235 37 228 +145.54 ± 11.56 0 1 54 191 4 +359.68 ± 46.95
476933 ncm-dbt-04 564370 500 225 41 234 +134.15 ± 11.86 0 3 61 185 1 +324.17 ± 44.15
476932 ncm-dbt-05 582402 500 228 32 240 +143.89 ± 12.3 0 3 53 189 5 +349.43 ± 47.56
476931 ncm-dbt-01 583070 500 224 45 231 +130.14 ± 12.39 0 2 71 173 4 +301.33 ± 40.6
476930 ncm-dbt-02 591986 500 214 45 241 +122.24 ± 12.57 0 4 75 169 2 +280.42 ± 39.57
476929 ncm-dbt-03 585211 500 223 32 245 +139.81 ± 12.67 0 2 62 179 7 +327.18 ± 43.69
476928 ncm-dbt-04 566414 500 223 39 238 +134.15 ± 13.05 0 5 61 179 5 +312.48 ± 44.19
476927 ncm-dbt-05 579951 500 216 39 245 +128.55 ± 13.19 0 3 74 166 7 +288.06 ± 39.79
476926 ncm-dbt-04 568275 500 219 40 241 +130.14 ± 12.59 0 2 72 171 5 +298.62 ± 40.29
476925 ncm-dbt-02 589197 500 217 33 250 +134.15 ± 11.86 0 1 67 179 3 +318.25 ± 41.77
476924 ncm-dbt-03 578095 500 222 47 231 +126.97 ± 13.94 0 5 74 162 9 +277.93 ± 39.92
476923 ncm-dbt-01 582903 500 216 37 247 +130.14 ± 11.78 0 3 65 182 0 +312.48 ± 42.67
476922 ncm-dbt-05 586520 500 226 39 235 +136.56 ± 12.39 1 0 64 181 4 +327.18 ± 42.83
476921 ncm-dbt-04 568355 500 220 46 234 +126.17 ± 12.3 0 3 72 173 2 +293.29 ± 40.39
476920 ncm-dbt-03 585337 500 240 47 213 +141.44 ± 11.98 0 2 57 187 4 +342.85 ± 45.71
476919 ncm-dbt-01 584034 500 220 36 244 +134.15 ± 12.86 0 4 63 178 5 +312.48 ± 43.44
476918 ncm-dbt-02 589625 500 220 31 249 +138.18 ± 12.12 0 1 64 180 5 +327.18 ± 42.83
476917 ncm-dbt-05 582485 500 222 56 222 +119.89 ± 12.79 0 3 82 161 4 +268.17 ± 37.61
476916 ncm-dbt-04 566691 500 227 42 231 +134.95 ± 11.61 0 1 65 182 2 +324.17 ± 42.47
476915 ncm-dbt-03 584201 500 232 35 233 +144.71 ± 11.83 0 1 56 188 5 +352.8 ± 46.04
476914 ncm-dbt-02 589882 500 227 38 235 +138.18 ± 12.33 0 1 65 178 6 +324.17 ± 42.47
476913 ncm-dbt-01 582611 500 221 40 239 +131.74 ± 12.34 0 5 60 184 1 +315.35 ± 44.57
476912 ncm-dbt-05 597205 500 220 35 245 +134.95 ± 12.04 0 0 70 175 5 +315.34 ± 40.62
476911 ncm-dbt-04 567720 500 233 35 232 +145.54 ± 11.56 0 1 54 191 4 +359.68 ± 46.95
476910 ncm-dbt-02 590267 500 222 49 229 +125.38 ± 13.43 0 6 70 169 5 +282.94 ± 41.13
476909 ncm-dbt-01 585885 500 227 36 237 +139.8 ± 11.4 0 0 62 185 3 +339.63 ± 43.41
476908 ncm-dbt-03 585253 500 220 46 234 +126.17 ± 13.24 0 5 71 169 5 +285.49 ± 40.81

Commit

Commit ID 3e1e8e38a44777cae69844fe1fdea18830f94657
Author Disservin
Date 2026-07-03 18:25:35 UTC
Fix Clang-Format Action Inputs The inputs have a different name.. https://github.com/thollander/actions-comment-pull-request#action-inputs closes https://github.com/official-stockfish/Stockfish/pull/6940 No functional change
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