Dev Builds » 20260614-0758

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 06:42:51 583039 4006 1824 330 1852 +136.14 ± 4.48 0 25 502 1433 43 +318.55 ± 15.2
ncm-dbt-02 06:41:46 585097 3980 1776 325 1879 +132.77 ± 4.38 0 25 514 1426 25 +312.9 ± 15.01
ncm-dbt-03 06:43:02 585153 4000 1789 322 1889 +133.65 ± 4.34 0 15 536 1416 33 +313.19 ± 14.65
ncm-dbt-04 06:43:18 566818 4014 1808 323 1883 +134.93 ± 4.38 0 24 505 1447 31 +318.59 ± 15.15
ncm-dbt-05 06:43:30 582889 4000 1804 296 1900 +137.78 ± 4.32 0 16 495 1454 35 +327.56 ± 15.28
20000 9001 1596 9403 +135.05 ± 1.96 0 105 2552 7176 167 +318.11 ± 6.72

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
473897 ncm-dbt-01 582694 6 3 0 3 +190.46 ± 18.51 0 0 0 3 0 +1199.83 ± 276.48
473896 ncm-dbt-04 567522 14 7 0 7 +190.68 ± 7.94 0 0 0 7 0 +1199.83 ± 201.74
473895 ncm-dbt-02 586646 480 208 40 232 +126.97 ± 12.57 0 3 68 167 2 +295.72 ± 41.61
473894 ncm-dbt-05 583447 500 219 35 246 +134.15 ± 12.06 0 3 62 183 2 +321.19 ± 43.77
473893 ncm-dbt-03 585126 500 226 47 227 +130.14 ± 11.57 0 0 73 175 2 +306.84 ± 39.69
473892 ncm-dbt-01 580323 500 227 46 227 +131.74 ± 13.67 0 4 70 167 9 +293.29 ± 41.07
473891 ncm-dbt-04 564135 500 230 40 230 +138.99 ± 12.3 0 2 61 182 5 +330.23 ± 44.08
473890 ncm-dbt-02 583279 500 225 35 240 +138.99 ± 13.1 0 4 59 180 7 +324.17 ± 44.97
473889 ncm-dbt-05 581735 500 235 38 227 +144.71 ± 13.48 0 3 58 178 11 +333.32 ± 45.35
473888 ncm-dbt-03 585464 500 220 42 238 +129.35 ± 12.21 0 2 71 174 3 +301.33 ± 40.6
473887 ncm-dbt-01 582611 500 234 41 225 +141.44 ± 12.41 0 2 59 183 6 +336.46 ± 44.87
473886 ncm-dbt-04 565863 500 232 46 222 +135.76 ± 12.42 0 5 56 187 2 +327.18 ± 46.19
473885 ncm-dbt-02 584958 500 229 39 232 +138.99 ± 11.22 0 0 62 186 2 +339.63 ± 43.41
473884 ncm-dbt-05 585759 500 232 33 235 +146.36 ± 11.74 0 2 51 193 4 +363.2 ± 48.51
473883 ncm-dbt-03 585674 500 231 50 219 +131.74 ± 13.3 0 2 74 165 9 +293.29 ± 39.69
473882 ncm-dbt-01 585717 500 225 40 235 +134.95 ± 11.61 0 0 68 179 3 +321.18 ± 41.27
473881 ncm-dbt-04 567522 500 225 46 229 +130.14 ± 11.99 0 2 69 177 2 +306.84 ± 41.23
473880 ncm-dbt-02 584243 500 229 37 234 +140.62 ± 12.64 0 4 55 186 5 +336.46 ± 46.65
473879 ncm-dbt-03 585421 500 225 40 235 +134.95 ± 13.03 0 5 60 180 5 +315.35 ± 44.57
473878 ncm-dbt-05 584201 500 221 39 240 +132.54 ± 12.12 0 1 70 175 4 +309.64 ± 40.79
473877 ncm-dbt-01 586858 500 232 40 228 +140.62 ± 12.44 0 2 60 182 6 +333.32 ± 44.47
473876 ncm-dbt-04 568434 500 225 36 239 +138.18 ± 13.32 0 6 55 183 6 +324.17 ± 46.56
473875 ncm-dbt-02 584790 500 225 47 228 +129.35 ± 12.61 0 5 64 179 2 +304.07 ± 43.1
473874 ncm-dbt-03 585126 500 224 35 241 +138.18 ± 12.12 0 2 61 183 4 +330.23 ± 44.08
473873 ncm-dbt-01 584748 500 227 47 226 +130.94 ± 13.51 0 7 61 177 5 +301.33 ± 44.13
473872 ncm-dbt-05 585717 500 211 39 250 +124.6 ± 12.14 0 3 73 173 1 +290.66 ± 40.08
473871 ncm-dbt-04 567205 500 214 51 235 +117.55 ± 12.64 0 3 84 160 3 +263.42 ± 37.11
473870 ncm-dbt-02 586858 500 223 37 240 +135.76 ± 12.01 0 2 63 182 3 +324.17 ± 43.32
473869 ncm-dbt-03 585211 500 222 29 249 +141.44 ± 11.55 0 1 58 188 3 +346.12 ± 45.18
473868 ncm-dbt-01 582903 500 226 35 239 +139.81 ± 12.87 0 3 60 180 7 +327.18 ± 44.54
473867 ncm-dbt-04 568037 500 226 31 243 +143.07 ± 11.91 0 1 58 186 5 +346.12 ± 45.18
473866 ncm-dbt-05 581902 500 227 32 241 +143.07 ± 11.69 0 2 54 191 3 +352.8 ± 47.05
473865 ncm-dbt-02 585843 500 222 39 239 +133.34 ± 12.29 0 3 64 180 3 +315.35 ± 43.03
473864 ncm-dbt-03 583489 500 226 43 231 +133.34 ± 12.49 0 2 68 175 5 +309.64 ± 41.56
473863 ncm-dbt-04 568673 500 227 34 239 +141.44 ± 11.77 0 1 59 186 4 +342.85 ± 44.76
473862 ncm-dbt-05 580033 500 229 40 231 +138.18 ± 11.91 0 1 63 182 4 +330.23 ± 43.2
473861 ncm-dbt-01 578054 500 224 38 238 +135.76 ± 12.42 0 4 59 184 3 +324.17 ± 44.97
473860 ncm-dbt-02 584159 500 215 51 234 +118.33 ± 12.44 0 4 79 166 1 +270.57 ± 38.47
473859 ncm-dbt-03 585717 500 215 36 249 +130.14 ± 11.78 0 1 71 176 2 +306.84 ± 40.47
473858 ncm-dbt-01 583447 500 226 43 231 +133.34 ± 12.49 0 3 65 178 4 +312.48 ± 42.67
473857 ncm-dbt-04 563978 500 222 39 239 +133.34 ± 12.69 0 4 63 179 4 +312.48 ± 43.44
473856 ncm-dbt-05 580323 500 230 40 230 +138.99 ± 12.3 0 1 64 179 6 +327.18 ± 42.83

Commit

Commit ID 718a001e6a962242b36172ebd0f478ee35b55288
Author Disservin
Date 2026-06-14 07:58:13 UTC
Fixup RelaxedAtomic operator Types As pointed out in https://github.com/official-stockfish/Stockfish/commit/0111d11e2356147bad21c1f890b271a30d10a580#r188197707, the parameter type should be `T` not `int` closes https://github.com/official-stockfish/Stockfish/pull/6896 No functional change
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