Dev Builds » 20260824-1629

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 06:47:40 582522 4000 1823 311 1866 +138.18 ± 4.48 1 14 510 1422 53 +322.67 ± 15.04
ncm-dbt-02 06:47:22 590764 4000 1806 292 1902 +138.39 ± 4.34 0 16 492 1454 38 +328.7 ± 15.33
ncm-dbt-03 06:49:45 577729 4000 1797 324 1879 +134.25 ± 4.5 0 28 510 1423 39 +313.19 ± 15.08
ncm-dbt-04 06:48:45 567926 4000 1780 274 1946 +137.58 ± 4.3 0 17 492 1459 32 +327.94 ± 15.33
ncm-dbt-05 06:48:47 602883 4000 1814 277 1909 +140.72 ± 4.38 0 17 475 1462 46 +334.49 ± 15.61
20000 9020 1478 9502 +137.82 ± 1.97 1 92 2479 7220 208 +325.29 ± 6.82

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
483347 ncm-dbt-05 600159 500 230 41 229 +138.18 ± 12.53 0 2 63 179 6 +324.17 ± 43.32
483346 ncm-dbt-03 575883 500 216 34 250 +132.54 ± 12.71 0 6 58 184 2 +315.35 ± 45.33
483345 ncm-dbt-02 594106 500 234 48 218 +135.76 ± 13.2 0 2 69 170 9 +306.84 ± 41.23
483344 ncm-dbt-04 566770 500 230 37 233 +141.44 ± 12.81 0 3 58 182 7 +333.32 ± 45.35
483343 ncm-dbt-01 582068 500 224 40 236 +134.15 ± 13.05 0 2 70 170 8 +304.07 ± 40.91
483342 ncm-dbt-03 580116 500 223 42 235 +131.74 ± 12.54 0 1 73 170 6 +301.33 ± 39.86
483341 ncm-dbt-05 602204 500 230 43 227 +136.56 ± 12.59 0 2 65 177 6 +318.25 ± 42.59
483340 ncm-dbt-02 589497 500 230 25 245 +151.34 ± 10.98 0 1 46 200 3 +389.56 ± 51.18
483339 ncm-dbt-04 567482 500 223 35 242 +137.37 ± 12.36 0 3 60 183 4 +327.18 ± 44.54
483338 ncm-dbt-01 585000 500 218 38 244 +130.94 ± 12.37 0 3 67 177 3 +306.84 ± 41.99
483337 ncm-dbt-03 580365 500 223 35 242 +137.37 ± 11.51 0 1 62 185 2 +333.32 ± 43.57
483336 ncm-dbt-01 585084 500 225 41 234 +134.15 ± 12.86 0 3 66 175 6 +309.64 ± 42.33
483335 ncm-dbt-02 591125 500 228 40 232 +137.37 ± 12.36 0 3 60 183 4 +327.18 ± 44.54
483334 ncm-dbt-04 570268 500 232 36 232 +143.89 ± 11.65 0 1 56 189 4 +352.8 ± 46.04
483333 ncm-dbt-05 599893 500 220 35 245 +134.95 ± 12.44 0 2 66 177 5 +315.35 ± 42.24
483332 ncm-dbt-03 578959 500 223 36 241 +136.56 ± 11.97 0 2 62 183 3 +327.18 ± 43.69
483331 ncm-dbt-02 588686 500 222 34 244 +137.37 ± 12.36 0 2 63 180 5 +324.17 ± 43.32
483330 ncm-dbt-05 600070 500 221 34 245 +136.56 ± 12.79 0 5 57 184 4 +324.17 ± 45.77
483329 ncm-dbt-01 579455 500 226 37 237 +138.18 ± 13.32 0 2 67 171 10 +312.48 ± 41.9
483328 ncm-dbt-04 569071 500 222 39 239 +133.34 ± 11.88 0 1 68 178 3 +315.35 ± 41.44
483327 ncm-dbt-02 591728 500 218 43 239 +126.97 ± 12.47 0 3 72 172 3 +293.29 ± 40.39
483326 ncm-dbt-05 600691 500 239 32 229 +153.02 ± 12.91 0 2 50 187 11 +366.78 ± 49.02
483325 ncm-dbt-03 576210 500 234 43 223 +139.81 ± 13.83 0 6 56 179 9 +321.19 ± 46.14
483324 ncm-dbt-01 580447 500 237 39 224 +145.54 ± 12.85 0 0 63 176 11 +336.45 ± 43.03
483323 ncm-dbt-04 568116 500 210 31 259 +130.14 ± 12.19 0 3 67 178 2 +306.84 ± 41.99
483322 ncm-dbt-02 589539 500 216 41 243 +126.97 ± 12.47 0 3 72 172 3 +293.29 ± 40.39
483321 ncm-dbt-01 583070 500 237 31 232 +152.18 ± 11.87 0 1 49 193 7 +377.87 ± 49.47
483320 ncm-dbt-03 571351 500 223 44 233 +130.14 ± 13.34 0 5 67 172 6 +295.94 ± 42.08
483319 ncm-dbt-04 568912 500 222 32 246 +138.99 ± 12.09 0 1 63 181 5 +330.23 ± 43.2
483318 ncm-dbt-05 607877 500 226 27 247 +146.36 ± 12.18 0 1 56 186 7 +352.8 ± 46.04
483317 ncm-dbt-01 583656 500 229 43 228 +135.76 ± 13.01 1 2 62 180 5 +321.19 ± 43.77
483316 ncm-dbt-02 591685 500 226 33 241 +141.44 ± 11.32 0 1 57 190 2 +349.43 ± 45.6
483315 ncm-dbt-05 606155 500 229 35 236 +142.25 ± 11.73 0 2 55 190 3 +349.43 ± 46.59
483314 ncm-dbt-03 579331 500 223 43 234 +130.94 ± 12.17 0 3 66 179 2 +309.64 ± 42.33
483313 ncm-dbt-04 566730 500 220 41 239 +130.14 ± 12.59 0 3 69 174 4 +301.33 ± 41.33
483312 ncm-dbt-01 581402 500 227 42 231 +134.95 ± 11.83 0 1 66 180 3 +321.19 ± 42.12
483311 ncm-dbt-02 589753 500 232 28 240 +150.51 ± 12.4 0 1 53 187 9 +363.2 ± 47.43
483310 ncm-dbt-05 606019 500 219 30 251 +138.18 ± 11.91 0 1 63 182 4 +330.23 ± 43.2
483309 ncm-dbt-04 566060 500 221 23 256 +145.54 ± 11.56 0 2 51 194 3 +363.2 ± 48.51
483308 ncm-dbt-03 579620 500 232 47 221 +134.95 ± 13.59 0 4 66 171 9 +304.07 ± 42.38

Commit

Commit ID 7d9276c6a96797a2904231c491956a105555f5b3
Author Timothy Herchen
Date 2026-08-24 16:29:11 UTC
Handle ANSI paths Fixes https://github.com/official-stockfish/Stockfish/issues/7049 closes https://github.com/official-stockfish/Stockfish/pull/7088 No functional change
Copyright 2011–2026 Next Chess Move LLC