Dev Builds » 20260101-1513

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 04:58:16 580920 2944 1281 281 1382 +122.9 ± 5.31 0 23 449 977 23 +277.75 ± 16.03
ncm-dbt-02 04:57:59 586421 2930 1240 279 1411 +118.33 ± 5.33 0 29 461 960 15 +266.81 ± 15.83
ncm-dbt-03 04:57:49 585735 2974 1292 305 1377 +119.84 ± 5.31 1 29 454 988 15 +271.99 ± 15.97
ncm-dbt-04 04:58:11 565690 2952 1265 294 1393 +118.69 ± 5.25 0 27 464 972 13 +268.8 ± 15.77
ncm-dbt-05 04:58:05 585116 2952 1258 293 1401 +117.9 ± 5.43 0 34 463 959 20 +263.56 ± 15.82
14752 6336 1452 6964 +119.53 ± 2.38 1 142 2291 4856 86 +269.74 ± 7.09

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
448233 ncm-dbt-02 585464 430 187 41 202 +122.84 ± 13.02 0 1 69 143 2 +281.53 ± 40.87
448232 ncm-dbt-01 580779 444 192 37 215 +126.61 ± 14.5 0 5 63 148 6 +282.42 ± 43.4
448231 ncm-dbt-05 584706 452 186 45 221 +112.12 ± 14.27 0 5 80 136 5 +241.79 ± 38.15
448230 ncm-dbt-04 567561 452 203 51 198 +121.56 ± 13.79 0 6 64 154 2 +277.75 ± 43.06
448229 ncm-dbt-03 583656 474 210 53 211 +119.59 ± 13.41 0 5 73 156 3 +269.24 ± 40.16
448228 ncm-dbt-02 586181 500 211 58 231 +109.83 ± 13.56 0 6 90 149 5 +236.51 ± 35.94
448227 ncm-dbt-05 582527 500 225 47 228 +129.35 ± 13.17 0 4 70 170 6 +293.29 ± 41.07
448226 ncm-dbt-04 567482 500 213 59 228 +110.6 ± 12.7 0 4 90 154 2 +245.2 ± 35.79
448225 ncm-dbt-01 579620 500 217 45 238 +124.6 ± 12.53 0 3 75 169 3 +285.49 ± 39.5
448224 ncm-dbt-03 586774 500 221 44 235 +128.55 ± 12.63 0 3 71 172 4 +295.94 ± 40.69
448223 ncm-dbt-02 586477 500 211 48 241 +117.55 ± 13.0 0 5 80 162 3 +263.42 ± 38.27
448222 ncm-dbt-04 566888 500 209 38 253 +123.81 ± 11.96 0 2 76 171 1 +288.06 ± 39.11
448221 ncm-dbt-05 580987 500 220 49 231 +123.81 ± 12.35 0 3 75 170 2 +285.49 ± 39.5
448220 ncm-dbt-01 582527 500 218 54 228 +118.33 ± 13.7 0 6 80 158 6 +258.75 ± 38.32
448219 ncm-dbt-03 587282 500 218 58 224 +115.22 ± 13.03 0 5 83 159 3 +256.44 ± 37.51
448218 ncm-dbt-02 586350 500 207 45 248 +116.77 ± 13.36 0 8 74 166 2 +263.42 ± 39.97
448217 ncm-dbt-05 584579 500 215 50 235 +119.11 ± 12.24 0 3 80 166 1 +273.0 ± 38.12
448216 ncm-dbt-01 579289 500 222 44 234 +129.35 ± 12.01 0 2 70 176 2 +304.07 ± 40.91
448215 ncm-dbt-04 564997 500 200 50 250 +107.54 ± 13.23 0 7 88 153 2 +236.51 ± 36.44
448214 ncm-dbt-03 584201 500 213 54 233 +114.45 ± 12.67 0 4 85 159 2 +256.44 ± 36.95
448213 ncm-dbt-02 586858 500 205 44 251 +116.0 ± 12.84 0 5 81 162 2 +261.07 ± 38.02
448212 ncm-dbt-04 564370 500 222 52 226 +123.02 ± 13.11 0 5 74 167 4 +277.93 ± 39.92
448211 ncm-dbt-05 579992 500 193 52 255 +100.7 ± 14.16 0 11 91 144 4 +213.85 ± 35.9
448210 ncm-dbt-01 582402 500 212 53 235 +114.45 ± 12.49 0 2 90 155 3 +254.16 ± 35.58
448209 ncm-dbt-03 584790 500 216 47 237 +122.24 ± 12.57 1 1 78 168 2 +282.94 ± 38.55
448208 ncm-dbt-03 587707 500 214 49 237 +119.11 ± 13.69 0 11 64 174 1 +273.0 ± 42.83
448207 ncm-dbt-02 587197 500 219 43 238 +127.76 ± 12.26 0 4 67 178 1 +301.33 ± 42.04
448206 ncm-dbt-04 562846 500 218 44 238 +126.17 ± 12.3 0 3 72 173 2 +293.29 ± 40.39
448205 ncm-dbt-01 580904 500 220 48 232 +124.6 ± 12.9 0 5 71 171 3 +285.49 ± 40.81
448204 ncm-dbt-05 597907 500 219 50 231 +122.24 ± 13.3 0 8 67 173 2 +280.42 ± 42.05

Commit

Commit ID 8815d1ef02038e5f60b974b2d24c380bbd6ba4d8
Author mstembera
Date 2026-01-01 15:13:44 UTC
Minor cleanup in full_threats.cpp closes https://github.com/official-stockfish/Stockfish/pull/6509 No functional change
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