Dev Builds » 20251228-1359

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 06:43:22 581065 4016 1746 384 1886 +122.69 ± 4.49 0 29 615 1337 27 +278.45 ± 13.68
ncm-dbt-02 06:45:32 585882 4010 1750 364 1896 +125.24 ± 4.5 0 30 587 1360 28 +286.33 ± 14.02
ncm-dbt-03 06:44:35 585034 3998 1741 357 1900 +125.45 ± 4.55 0 35 574 1361 29 +286.67 ± 14.2
ncm-dbt-04 06:43:45 566448 3976 1727 385 1864 +122.05 ± 4.56 0 36 598 1330 24 +277.29 ± 13.9
ncm-dbt-05 06:43:58 585244 4000 1734 374 1892 +123.02 ± 4.57 0 37 593 1343 27 +279.48 ± 13.97
20000 8698 1864 9438 +123.69 ± 2.03 0 167 2967 6731 135 +281.62 ± 6.23

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
447594 ncm-dbt-02 587113 10 5 1 4 +147.05 ± 74.68 0 0 1 4 0 +381.35 ± 516.06
447593 ncm-dbt-01 580904 16 7 2 7 +112.26 ± 65.75 0 0 3 5 0 +254.61 ± 287.37
447592 ncm-dbt-04 563002 476 216 50 210 +126.47 ± 13.85 0 5 68 159 6 +283.12 ± 41.72
447591 ncm-dbt-03 584495 498 209 49 240 +115.72 ± 13.92 0 8 78 158 5 +253.3 ± 38.89
447590 ncm-dbt-05 578959 500 211 51 238 +115.22 ± 13.55 0 9 74 165 2 +258.75 ± 39.96
447589 ncm-dbt-01 582945 500 216 41 243 +126.97 ± 12.28 0 3 71 174 2 +295.94 ± 40.69
447588 ncm-dbt-02 586012 500 215 46 239 +122.24 ± 13.12 0 3 81 160 6 +270.57 ± 37.86
447587 ncm-dbt-04 565548 500 216 53 231 +117.55 ± 14.2 0 8 78 157 7 +254.16 ± 38.89
447586 ncm-dbt-03 584159 500 218 49 233 +122.24 ± 12.76 0 4 76 167 3 +277.93 ± 39.29
447585 ncm-dbt-05 579951 500 222 51 227 +123.81 ± 12.54 0 3 76 168 3 +282.94 ± 39.21
447584 ncm-dbt-02 587197 500 213 43 244 +123.02 ± 12.56 0 4 74 170 2 +282.94 ± 39.86
447583 ncm-dbt-01 577766 500 221 55 224 +119.89 ± 12.61 0 2 84 160 4 +268.17 ± 36.99
447582 ncm-dbt-04 567878 500 211 47 242 +118.33 ± 12.81 0 4 81 162 3 +265.78 ± 37.95
447581 ncm-dbt-05 580613 500 222 57 221 +119.11 ± 13.86 0 7 77 160 6 +261.07 ± 39.14
447580 ncm-dbt-03 586858 500 220 44 236 +127.76 ± 13.21 0 5 69 171 5 +290.66 ± 41.43
447579 ncm-dbt-01 579909 500 214 45 241 +122.24 ± 13.3 0 6 73 167 4 +275.45 ± 40.24
447578 ncm-dbt-02 583363 500 223 53 224 +123.02 ± 13.47 0 4 79 160 7 +270.57 ± 38.47
447577 ncm-dbt-04 567086 500 213 48 239 +119.11 ± 12.8 0 6 74 169 1 +273.0 ± 39.95
447576 ncm-dbt-03 585337 500 221 42 237 +130.14 ± 12.59 0 2 72 171 5 +298.62 ± 40.29
447575 ncm-dbt-05 580613 500 210 49 241 +116.0 ± 13.37 0 7 78 162 3 +258.75 ± 38.88
447574 ncm-dbt-01 583154 500 216 43 241 +125.38 ± 11.72 0 1 76 172 1 +293.29 ± 38.98
447573 ncm-dbt-02 585590 500 215 49 236 +119.89 ± 12.42 0 5 74 171 0 +277.93 ± 39.92
447572 ncm-dbt-04 567363 500 206 31 263 +126.97 ± 12.28 0 4 68 177 1 +298.62 ± 41.71
447571 ncm-dbt-05 581361 500 214 39 247 +126.97 ± 12.47 0 3 72 172 3 +293.29 ± 40.39
447570 ncm-dbt-03 583070 500 222 39 239 +133.34 ± 11.24 0 0 68 181 1 +321.18 ± 41.27
447569 ncm-dbt-01 582193 500 217 54 229 +117.55 ± 13.18 0 4 84 157 5 +258.75 ± 37.2
447568 ncm-dbt-02 585421 500 211 46 243 +119.11 ± 12.8 0 4 80 163 3 +268.17 ± 38.21
447567 ncm-dbt-04 565351 500 220 51 229 +122.24 ± 12.38 0 3 77 168 2 +280.42 ± 38.93
447566 ncm-dbt-05 600203 500 217 33 250 +134.14 ± 11.21 0 0 67 182 1 +324.16 ± 41.61
447565 ncm-dbt-01 582861 500 220 45 235 +126.97 ± 12.28 0 3 71 174 2 +295.94 ± 40.69
447564 ncm-dbt-03 586774 500 223 46 231 +128.55 ± 12.82 0 4 69 173 4 +295.94 ± 41.39
447563 ncm-dbt-02 584159 500 227 42 231 +134.95 ± 12.44 0 4 60 183 3 +321.19 ± 44.57
447562 ncm-dbt-04 568315 500 224 50 226 +126.17 ± 12.3 0 3 72 173 2 +293.29 ± 40.39
447561 ncm-dbt-05 582611 500 230 43 227 +136.56 ± 12.18 0 0 69 175 6 +318.25 ± 40.94
447560 ncm-dbt-01 579413 500 216 50 234 +119.89 ± 13.16 0 5 78 163 4 +268.17 ± 38.8
447559 ncm-dbt-03 585042 500 216 43 241 +125.38 ± 13.25 0 7 66 174 3 +288.06 ± 42.4
447558 ncm-dbt-02 583908 500 221 47 232 +126.17 ± 13.06 0 4 73 168 5 +285.49 ± 40.16
447557 ncm-dbt-01 580447 500 219 49 232 +123.02 ± 13.29 0 5 75 165 5 +275.45 ± 39.63
447556 ncm-dbt-04 567047 500 221 55 224 +119.89 ± 12.42 0 3 80 165 2 +273.0 ± 38.12
447555 ncm-dbt-05 597644 500 208 51 241 +112.91 ± 13.56 0 8 80 159 3 +249.64 ± 38.38
447554 ncm-dbt-03 584537 500 212 45 243 +120.67 ± 12.97 0 5 76 166 3 +273.0 ± 39.35
447553 ncm-dbt-02 590181 500 220 37 243 +133.34 ± 11.88 0 2 65 181 2 +318.25 ± 42.59

Commit

Commit ID 44d5467bbe06789e8a3cbaee87e699e033b3081a
Author Timothy Herchen
Date 2025-12-28 13:59:26 UTC
Remove -Wstack-usage on (apple) clang Clang pretends to be GCC, but is enraged by `-Wstack-usage`: closes https://github.com/official-stockfish/Stockfish/pull/6499 No functional change
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