Dev Builds » 20261024-1812

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 06:44:15 585803 3880 1797 258 1825 +145.81 ± 4.3 0 5 440 1446 49 +352.83 ± 16.17
ncm-dbt-02 06:44:26 594077 3796 1738 249 1809 +144.0 ± 4.43 1 14 419 1423 41 +348.96 ± 16.64
ncm-dbt-03 06:42:45 586277 3810 1776 240 1794 +148.5 ± 4.55 1 18 387 1442 57 +360.47 ± 17.34
ncm-dbt-04 06:43:47 571874 3800 1743 259 1798 +143.29 ± 4.39 0 9 442 1405 44 +344.4 ± 16.16
ncm-dbt-05 08:25:19 606754 4714 2166 291 2257 +146.26 ± 3.86 0 12 507 1789 49 +358.56 ± 15.1
20000 9220 1297 9483 +145.6 ± 1.92 2 58 2195 7505 240 +353.22 ± 7.25

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
487367 ncm-dbt-05 602337 214 98 16 100 +140.28 ± 17.18 0 0 26 80 1 +343.66 ± 68.46 ↓
487366 ncm-dbt-04 572195 300 141 21 138 +147.19 ± 16.23 0 1 33 111 5 +351.67 ± 60.8 ↓
487365 ncm-dbt-02 595411 296 132 17 147 +142.46 ± 15.73 0 1 34 110 3 +343.47 ± 59.79 ↓
487364 ncm-dbt-03 586308 310 143 18 149 +148.52 ± 17.06 0 2 33 113 7 +347.18 ± 60.93 ↓
487363 ncm-dbt-01 585253 380 177 26 177 +146.1 ± 13.64 0 0 44 141 5 +353.15 ± 51.94 ↓
487362 ncm-dbt-05 606562 500 237 36 227 +148.02 ± 12.74 0 1 57 182 10 +349.43 ± 45.6 ↓
487361 ncm-dbt-04 572840 500 227 34 239 +141.44 ± 11.77 0 2 56 189 3 +346.12 ± 46.15 ↓
487360 ncm-dbt-03 587113 500 231 34 235 +144.71 ± 11.83 0 2 53 191 4 +356.21 ± 47.52 ↓
487359 ncm-dbt-02 594019 500 226 34 240 +140.62 ± 12.02 0 2 58 186 4 +339.63 ± 45.29 ↓
487358 ncm-dbt-01 584748 500 236 28 236 +153.86 ± 11.53 0 0 49 194 7 +385.59 ± 49.31 ↓
487357 ncm-dbt-05 605658 500 238 28 234 +155.54 ± 11.42 0 1 44 199 6 +397.72 ± 52.42 ↓
487356 ncm-dbt-04 570469 500 233 33 234 +147.19 ± 11.7 0 0 56 188 6 +359.67 ± 45.87 ↓
487355 ncm-dbt-03 586350 500 235 32 233 +149.68 ± 12.45 0 3 48 192 7 +366.78 ± 50.11 ↓
487354 ncm-dbt-02 593196 500 233 32 235 +148.02 ± 11.19 0 1 50 196 3 +374.11 ± 48.94 ↓
487353 ncm-dbt-01 585253 500 230 44 226 +135.75 ± 11.36 0 0 66 182 2 +327.17 ± 41.95 ↓
487352 ncm-dbt-05 602516 500 235 34 231 +148.02 ± 11.88 0 4 44 199 3 +374.11 ± 52.37 ↓
487351 ncm-dbt-04 573244 500 232 26 242 +152.18 ± 11.16 0 0 49 196 5 +385.59 ± 49.31 ↓
487350 ncm-dbt-02 592893 500 229 37 234 +140.62 ± 12.02 0 1 61 183 5 +336.46 ± 43.96 ↓
487349 ncm-dbt-03 587749 500 235 39 226 +143.89 ± 11.87 0 1 57 187 5 +349.43 ± 45.6 ↓
487348 ncm-dbt-01 585759 500 235 27 238 +153.86 ± 11.99 0 1 48 193 8 +381.7 ± 50.02 ↓
487347 ncm-dbt-05 602204 500 230 30 240 +147.19 ± 11.24 0 1 51 195 3 +370.41 ± 48.42 ↓
487346 ncm-dbt-04 572155 500 226 31 243 +143.07 ± 12.34 0 1 60 182 7 +339.63 ± 44.35 ↓
487345 ncm-dbt-02 599185 500 227 34 239 +141.44 ± 12.81 0 4 55 185 6 +336.46 ± 46.65 ↓
487344 ncm-dbt-03 586350 500 236 29 235 +153.02 ± 12.91 0 4 44 193 9 +374.11 ± 52.37 ↓
487343 ncm-dbt-01 586689 500 235 40 225 +143.07 ± 12.75 0 1 62 178 9 +333.32 ± 43.57 ↓
487342 ncm-dbt-05 601713 500 220 29 251 +139.8 ± 11.84 0 0 64 181 5 +333.32 ± 42.66 ↓
487127 ncm-dbt-05 619126 500 222 29 249 +141.44 ± 11.98 0 2 57 187 4 +342.85 ± 45.71 ↓
487126 ncm-dbt-02 594758 500 229 31 240 +145.54 ± 12.85 1 1 54 187 7 +352.8 ± 47.05 ↓
487125 ncm-dbt-04 570308 500 229 39 232 +138.99 ± 12.3 0 1 64 179 6 +327.18 ± 42.83 ↓
487124 ncm-dbt-01 585337 500 228 33 239 +143.07 ± 11.69 0 1 57 188 4 +349.43 ± 45.6 ↓
487123 ncm-dbt-03 586562 500 239 24 237 +159.78 ± 12.96 1 0 44 193 12 +397.72 ± 52.42 ↓
487122 ncm-dbt-05 602159 500 236 27 237 +154.7 ± 11.23 0 0 47 197 6 +393.59 ± 50.43 ↓
487121 ncm-dbt-02 592893 500 230 32 238 +145.54 ± 11.33 0 0 56 190 4 +359.67 ± 45.87 ↓
487120 ncm-dbt-04 572759 500 230 38 232 +140.62 ± 12.02 0 1 61 183 5 +336.46 ± 43.96 ↓
487119 ncm-dbt-03 584453 500 226 29 245 +144.71 ± 13.28 0 4 54 183 9 +339.63 ± 47.1 ↓
487118 ncm-dbt-01 585253 500 232 28 240 +150.51 ± 12.62 0 1 54 185 10 +359.68 ± 46.95 ↓
487117 ncm-dbt-05 604442 500 225 34 241 +139.81 ± 11.84 0 1 61 184 4 +336.46 ± 43.96 ↓
487116 ncm-dbt-02 590267 500 232 32 236 +147.19 ± 13.18 0 4 51 186 9 +349.43 ± 48.52 ↓
487115 ncm-dbt-04 571029 500 225 37 238 +137.37 ± 12.96 0 3 63 177 7 +318.25 ± 43.39 ↓
487114 ncm-dbt-03 585337 500 231 35 234 +143.89 ± 11.87 0 2 54 190 4 +352.8 ± 47.05 ↓
487113 ncm-dbt-01 588132 500 224 32 244 +140.62 ± 11.81 0 1 60 185 4 +339.63 ± 44.35 ↓
487112 ncm-dbt-05 620828 500 225 28 247 +144.71 ± 12.47 0 2 56 185 7 +346.12 ± 46.15 ↓

Commit

Commit ID a1e94f955c167e42de47b92ad7fd72d2b801b785
Author Linmiao Xu
Date 2026-10-24 18:12:10 UTC
Simplify FullThreats LUT init Passed non-regression STC: https://tests.stockfishchess.org/tests/view/6ad68f6a733e627f7058c93f LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 81856 W: 20850 L: 20693 D: 40313 Ptnml(0-2): 84, 8671, 23270, 8810, 93 closes https://github.com/official-stockfish/Stockfish/pull/7245 No functional change
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