Dev Builds » 20260110-1434

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 06:44:43 582104 4000 1729 373 1898 +122.63 ± 4.61 0 35 608 1323 34 +276.07 ± 13.78
ncm-dbt-02 06:44:43 586389 4000 1737 372 1891 +123.52 ± 4.61 1 43 570 1362 24 +282.31 ± 14.27
ncm-dbt-03 06:44:00 585199 4000 1723 353 1924 +124.01 ± 4.42 0 27 596 1357 20 +284.85 ± 13.9
ncm-dbt-04 06:44:00 567386 4000 1744 381 1875 +123.32 ± 4.62 1 35 596 1336 32 +279.17 ± 13.93
ncm-dbt-05 06:44:57 583455 4000 1713 383 1904 +120.09 ± 4.56 0 39 614 1325 22 +271.78 ± 13.72
20000 8646 1862 9492 +122.71 ± 2.04 2 179 2984 6703 132 +278.8 ± 6.22

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
449852 ncm-dbt-02 587834 500 219 50 231 +122.24 ± 13.12 1 2 78 165 4 +277.93 ± 38.66
449851 ncm-dbt-05 577438 500 208 39 253 +122.24 ± 12.57 0 3 78 166 3 +277.93 ± 38.66
449850 ncm-dbt-04 569549 500 214 35 251 +130.14 ± 12.19 0 2 70 175 3 +304.07 ± 40.91
449849 ncm-dbt-01 585042 500 224 45 231 +130.14 ± 13.7 0 4 72 165 9 +288.06 ± 40.46
449848 ncm-dbt-03 582152 500 216 43 241 +125.38 ± 12.89 0 4 73 169 4 +285.49 ± 40.16
449847 ncm-dbt-02 587113 500 219 49 232 +123.02 ± 13.47 0 6 73 166 5 +275.45 ± 40.24
449846 ncm-dbt-05 584748 500 214 55 231 +114.45 ± 13.72 0 9 76 162 3 +254.16 ± 39.42
449845 ncm-dbt-01 580945 500 216 42 242 +126.17 ± 12.49 0 2 76 168 4 +288.06 ± 39.11
449844 ncm-dbt-03 587409 500 210 57 233 +109.83 ± 12.88 0 5 89 154 2 +243.0 ± 36.1
449843 ncm-dbt-04 567047 500 211 50 239 +116.0 ± 13.71 0 7 80 158 5 +254.16 ± 38.36
449842 ncm-dbt-05 581569 500 215 43 242 +124.6 ± 12.9 0 5 71 171 3 +285.49 ± 40.81
449841 ncm-dbt-01 580613 500 214 49 237 +119.11 ± 13.34 0 6 77 163 4 +265.78 ± 39.12
449840 ncm-dbt-02 587962 500 218 53 229 +119.11 ± 13.17 0 6 76 165 3 +268.17 ± 39.39
449839 ncm-dbt-03 583782 500 211 51 238 +115.22 ± 12.3 0 3 85 161 1 +261.07 ± 36.86
449838 ncm-dbt-04 566414 500 222 45 233 +128.55 ± 12.82 0 4 69 173 4 +295.94 ± 41.39
449837 ncm-dbt-03 584958 500 222 47 231 +126.97 ± 13.04 0 5 69 172 4 +290.66 ± 41.43
449836 ncm-dbt-01 582945 500 218 50 232 +121.45 ± 13.49 0 7 72 167 4 +273.0 ± 40.54
449835 ncm-dbt-05 577889 500 217 47 236 +123.02 ± 12.17 0 3 75 171 1 +285.49 ± 39.5
449834 ncm-dbt-02 586012 500 212 46 242 +119.89 ± 13.16 0 7 72 169 2 +273.0 ± 40.54
449833 ncm-dbt-04 566296 500 224 45 231 +130.14 ± 12.39 0 1 74 170 5 +298.62 ± 39.56
449832 ncm-dbt-04 565076 500 219 50 231 +122.24 ± 12.94 0 5 74 168 3 +277.93 ± 39.92
449831 ncm-dbt-05 585295 500 219 58 223 +116.0 ± 12.84 0 4 84 159 3 +258.75 ± 37.2
449830 ncm-dbt-01 579537 500 211 43 246 +121.45 ± 13.14 0 6 73 168 3 +275.45 ± 40.24
449829 ncm-dbt-03 584243 500 210 32 258 +129.35 ± 12.01 0 2 70 176 2 +304.07 ± 40.91
449828 ncm-dbt-02 584664 500 209 37 254 +124.6 ± 12.71 0 6 67 176 1 +290.66 ± 42.08
449827 ncm-dbt-04 567522 500 218 53 229 +119.11 ± 13.17 0 5 79 162 4 +265.78 ± 38.54
449826 ncm-dbt-05 584034 500 209 44 247 +119.11 ± 12.62 0 6 73 171 0 +275.45 ± 40.24
449825 ncm-dbt-01 583656 500 217 53 230 +118.33 ± 12.63 0 4 80 164 2 +268.17 ± 38.21
449824 ncm-dbt-03 586774 500 221 43 236 +129.35 ± 13.17 0 6 64 176 4 +298.62 ± 43.1
449823 ncm-dbt-02 585253 500 223 39 238 +134.15 ± 11.86 0 1 67 179 3 +318.25 ± 41.77
449822 ncm-dbt-02 585464 500 217 49 234 +121.45 ± 12.77 0 5 74 169 2 +277.93 ± 39.92
449821 ncm-dbt-05 576333 500 229 52 219 +128.55 ± 13.19 0 3 74 166 7 +288.06 ± 39.79
449820 ncm-dbt-01 581902 500 209 42 249 +120.67 ± 12.6 0 3 80 164 3 +273.0 ± 38.12
449819 ncm-dbt-04 567878 500 208 56 236 +109.07 ± 13.56 1 6 85 156 2 +243.0 ± 37.13
449818 ncm-dbt-03 585084 500 211 35 254 +127.76 ± 11.65 0 1 73 175 1 +301.33 ± 39.86
449817 ncm-dbt-02 586816 500 220 49 231 +123.81 ± 13.98 0 10 63 173 4 +280.42 ± 43.24
449816 ncm-dbt-04 569310 500 228 47 225 +131.74 ± 13.3 0 5 65 174 6 +301.33 ± 42.75
449815 ncm-dbt-01 582193 500 220 49 231 +123.81 ± 12.92 0 3 78 164 5 +277.93 ± 38.66
449814 ncm-dbt-03 587197 500 222 45 233 +128.55 ± 11.83 0 1 73 174 2 +301.33 ± 39.86
449813 ncm-dbt-05 600336 500 202 45 253 +112.91 ± 13.04 0 6 83 159 2 +251.89 ± 37.57

Commit

Commit ID 5d5e795746c4be012c39506edc451bdececd2981
Author Disservin
Date 2026-01-10 14:34:37 UTC
Fix Compiler Warning Only the one on line 158 is actually required but doesn't hurt to add constexpr where applicable here. Warning was "comparison of unsigned expression in '< 0' is always false" closes https://github.com/official-stockfish/Stockfish/pull/6530 No functional change
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