Dev Builds » 20260703-1824

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 06:44:56 582456 4010 1797 339 1874 +132.38 ± 4.34 0 17 543 1415 30 +309.8 ± 14.56
ncm-dbt-02 06:45:24 590554 3990 1785 279 1926 +137.96 ± 4.36 0 21 481 1459 34 +328.58 ± 15.53
ncm-dbt-03 06:44:27 584552 4000 1770 313 1917 +132.64 ± 4.41 0 20 537 1409 34 +309.29 ± 14.66
ncm-dbt-04 06:44:53 567931 4000 1783 314 1903 +133.85 ± 4.48 0 25 520 1416 39 +311.77 ± 14.92
ncm-dbt-05 06:45:28 583365 4000 1794 332 1874 +133.14 ± 4.43 0 25 521 1421 33 +311.41 ± 14.91
20000 8929 1577 9494 +133.99 ± 1.97 0 108 2602 7120 170 +314.05 ± 6.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
477035 ncm-dbt-01 582694 10 4 1 5 +107.43 ± 84.35 0 0 2 3 0 +240.65 ± 570.11
477034 ncm-dbt-02 589411 490 223 38 229 +138.0 ± 12.9 0 4 57 179 5 +326.19 ± 45.78
477033 ncm-dbt-05 583112 500 220 43 237 +128.55 ± 12.24 0 4 66 179 1 +304.07 ± 42.38
477032 ncm-dbt-04 569390 500 221 43 236 +129.35 ± 12.99 0 5 66 175 4 +298.62 ± 42.41
477031 ncm-dbt-03 582861 500 230 38 232 +140.62 ± 13.24 0 2 64 174 10 +321.19 ± 42.95
477030 ncm-dbt-01 583698 500 220 32 248 +137.37 ± 11.51 0 1 62 185 2 +333.32 ± 43.57
477029 ncm-dbt-02 589155 500 222 33 245 +138.18 ± 12.33 0 2 62 181 5 +327.18 ± 43.69
477028 ncm-dbt-04 567640 500 227 33 240 +142.25 ± 12.58 0 4 53 188 5 +342.85 ± 47.56
477027 ncm-dbt-05 583489 500 223 38 239 +134.95 ± 13.03 0 3 66 174 7 +309.64 ± 42.33
477026 ncm-dbt-03 584537 500 229 46 225 +133.34 ± 11.88 0 1 68 178 3 +315.35 ± 41.44
477025 ncm-dbt-01 582402 500 222 43 235 +130.14 ± 11.99 0 1 72 174 3 +304.07 ± 40.16
477024 ncm-dbt-02 589839 500 222 35 243 +136.56 ± 12.59 0 3 62 180 5 +321.19 ± 43.77
477023 ncm-dbt-04 565076 500 215 34 251 +131.74 ± 12.93 0 3 69 172 6 +301.33 ± 41.33
477022 ncm-dbt-05 581194 500 229 41 230 +137.37 ± 12.15 0 1 65 179 5 +324.17 ± 42.47
477021 ncm-dbt-01 584117 500 224 47 229 +128.55 ± 11.63 0 0 75 173 2 +301.33 ± 39.1
477020 ncm-dbt-03 585801 500 212 36 252 +127.76 ± 12.65 0 3 72 171 4 +293.29 ± 40.39
477019 ncm-dbt-02 592720 500 229 42 229 +136.56 ± 12.39 0 2 64 179 5 +321.19 ± 42.95
477018 ncm-dbt-04 567878 500 231 41 228 +138.99 ± 12.5 0 3 59 183 5 +330.23 ± 44.94
477017 ncm-dbt-05 585885 500 232 44 224 +137.37 ± 13.53 0 5 60 177 8 +315.35 ± 44.57
477016 ncm-dbt-03 583572 500 227 44 229 +133.34 ± 12.29 0 2 67 177 4 +312.48 ± 41.9
477015 ncm-dbt-01 584327 500 218 46 236 +124.6 ± 12.71 0 6 67 176 1 +290.66 ± 42.08
477014 ncm-dbt-02 591986 500 219 35 246 +134.15 ± 11.86 0 1 67 179 3 +318.25 ± 41.77
477013 ncm-dbt-03 586223 500 217 35 248 +132.54 ± 12.52 0 2 69 174 5 +306.84 ± 41.23
477012 ncm-dbt-04 566572 500 230 43 227 +136.56 ± 12.79 0 2 66 175 7 +315.35 ± 42.24
477011 ncm-dbt-05 583489 500 228 41 231 +136.56 ± 12.18 0 2 63 181 4 +324.17 ± 43.32
477010 ncm-dbt-01 579289 500 232 45 223 +136.56 ± 13.73 0 5 62 174 9 +309.64 ± 43.82
477009 ncm-dbt-02 590567 500 227 29 244 +145.54 ± 12.22 0 3 51 191 5 +356.21 ± 48.54
477008 ncm-dbt-03 587367 500 218 37 245 +131.74 ± 12.34 0 4 63 181 2 +312.48 ± 43.44
477007 ncm-dbt-05 583447 500 221 35 244 +135.76 ± 12.21 0 3 61 183 3 +324.17 ± 44.15
477006 ncm-dbt-01 582235 500 231 41 228 +138.99 ± 11.88 0 2 59 186 3 +336.46 ± 44.87
477005 ncm-dbt-04 568395 500 217 38 245 +130.14 ± 12.97 0 4 68 173 5 +298.62 ± 41.71
477004 ncm-dbt-02 591857 500 224 35 241 +138.18 ± 12.53 0 4 57 185 4 +330.23 ± 45.79
477003 ncm-dbt-01 580945 500 225 44 231 +131.74 ± 12.14 0 1 71 174 4 +306.84 ± 40.47
477002 ncm-dbt-03 581985 500 225 37 238 +137.37 ± 12.36 0 4 57 186 3 +330.23 ± 45.79
477001 ncm-dbt-04 570148 500 223 45 232 +129.35 ± 12.21 0 2 71 174 3 +301.33 ± 40.6
477000 ncm-dbt-05 584159 500 218 38 244 +130.94 ± 12.37 0 4 64 180 2 +309.64 ± 43.08
476999 ncm-dbt-02 588899 500 219 32 249 +136.56 ± 11.76 0 2 61 185 2 +330.23 ± 44.08
476998 ncm-dbt-01 582402 500 221 40 239 +131.74 ± 12.54 0 1 73 170 6 +301.33 ± 39.86
476997 ncm-dbt-05 582152 500 223 52 225 +123.81 ± 12.54 0 3 76 168 3 +282.94 ± 39.21
476996 ncm-dbt-04 568355 500 219 37 244 +132.54 ± 12.32 0 2 68 176 4 +309.64 ± 41.56
476995 ncm-dbt-03 584076 500 212 40 248 +124.6 ± 12.33 0 2 77 168 3 +285.49 ± 38.83

Commit

Commit ID 32619a0294fe1899948e3ccbb7407625a7db8ded
Author mstembera
Date 2026-07-03 18:24:27 UTC
Enable MoveSorter for AVX512 STC: https://tests.stockfishchess.org/tests/view/6a42f773f97ff95f7879518a LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 132992 W: 34679 L: 34248 D: 64065 Ptnml(0-2): 318, 14004, 37436, 14405, 333 No functional change Credit to @anematode for the original PR! closes https://github.com/official-stockfish/Stockfish/pull/6941 No functional change
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