Dev Builds » 20251014-1534

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 06:46:56 579981 4004 1679 435 1890 +111.63 ± 4.67 0 47 689 1241 25 +245.69 ± 12.93
ncm-dbt-02 06:46:35 585706 4002 1627 428 1947 +107.39 ± 4.69 0 57 705 1222 17 +235.82 ± 12.79
ncm-dbt-03 06:46:46 584847 4000 1657 472 1871 +106.11 ± 4.74 0 62 710 1209 19 +231.74 ± 12.75
ncm-dbt-04 06:46:50 566190 3996 1640 426 1930 +108.99 ± 4.7 2 52 691 1236 17 +240.88 ± 12.92
ncm-dbt-05 06:47:08 582031 3998 1673 456 1869 +109.22 ± 4.82 0 64 681 1227 27 +238.28 ± 13.04
20000 8276 2217 9507 +108.67 ± 2.11 2 282 3476 6135 105 +238.45 ± 5.76

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
437079 ncm-dbt-02 585506 2 0 0 2 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47
437078 ncm-dbt-01 577479 4 2 1 1 +88.51 ± 137.63 0 0 1 1 0 +190.5 ± 634.21
437077 ncm-dbt-03 585295 500 206 51 243 +111.37 ± 12.87 0 5 87 156 2 +247.41 ± 36.56
437076 ncm-dbt-05 578424 498 201 61 236 +100.37 ± 13.88 0 8 98 138 5 +210.97 ± 34.38
437075 ncm-dbt-04 562534 496 198 50 248 +106.92 ± 13.29 1 3 94 147 3 +234.76 ± 34.9
437074 ncm-dbt-01 580572 500 206 57 237 +106.77 ± 13.23 0 7 89 152 2 +234.38 ± 36.22
437073 ncm-dbt-02 586435 500 201 51 248 +107.54 ± 12.88 0 7 86 157 0 +240.82 ± 36.9
437072 ncm-dbt-03 585548 500 204 56 240 +106.01 ± 13.22 0 8 87 154 1 +234.38 ± 36.71
437071 ncm-dbt-05 583908 500 214 57 229 +112.91 ± 13.22 0 6 84 157 3 +249.64 ± 37.33
437070 ncm-dbt-04 566691 500 199 49 252 +107.54 ± 13.89 1 9 80 159 1 +240.82 ± 38.39
437069 ncm-dbt-01 579166 500 211 51 238 +115.22 ± 12.48 0 4 83 162 1 +261.07 ± 37.44
437068 ncm-dbt-02 585801 500 203 51 246 +109.07 ± 13.73 0 8 86 152 4 +236.51 ± 36.93
437067 ncm-dbt-03 585632 500 208 64 228 +102.97 ± 13.87 0 10 89 148 3 +221.9 ± 36.31
437066 ncm-dbt-05 581860 500 215 56 229 +114.45 ± 14.53 0 10 78 155 7 +245.2 ± 38.89
437065 ncm-dbt-04 567680 500 205 56 239 +106.77 ± 13.06 0 6 91 151 2 +234.38 ± 35.72
437064 ncm-dbt-01 581236 500 217 45 238 +124.6 ± 13.62 0 8 66 172 4 +282.94 ± 42.37
437063 ncm-dbt-02 584537 500 204 51 245 +109.83 ± 13.05 0 6 87 155 2 +243.0 ± 36.62
437062 ncm-dbt-03 581319 500 211 65 224 +104.49 ± 13.55 0 9 88 151 2 +228.08 ± 36.51
437061 ncm-dbt-04 567918 500 196 54 250 +101.46 ± 13.37 0 10 88 152 0 +223.94 ± 36.53
437060 ncm-dbt-05 583070 500 206 61 233 +103.73 ± 13.87 0 11 85 152 2 +226.0 ± 37.21
437059 ncm-dbt-01 580157 500 210 50 240 +115.22 ± 13.03 0 5 83 159 3 +256.44 ± 37.51
437058 ncm-dbt-02 583321 500 207 52 241 +111.37 ± 13.39 0 5 90 150 5 +240.82 ± 35.87
437057 ncm-dbt-04 563392 500 214 51 235 +117.55 ± 13.18 0 6 78 163 3 +263.42 ± 38.85
437056 ncm-dbt-03 584411 500 207 50 243 +112.91 ± 12.86 0 5 85 158 2 +251.89 ± 37.03
437055 ncm-dbt-05 580945 500 213 47 240 +119.89 ± 12.98 0 5 77 165 3 +270.57 ± 39.07
437054 ncm-dbt-02 585801 500 209 61 230 +106.01 ± 12.71 0 5 93 151 1 +234.38 ± 35.22
437053 ncm-dbt-01 578671 500 213 61 226 +109.07 ± 13.23 0 6 89 152 3 +238.66 ± 36.16
437052 ncm-dbt-03 583572 500 207 72 221 +96.19 ± 13.16 0 7 103 138 2 +206.01 ± 33.36
437051 ncm-dbt-04 565705 500 199 59 242 +99.95 ± 13.52 0 10 91 148 1 +217.85 ± 35.89
437050 ncm-dbt-02 584790 500 209 48 243 +116.0 ± 13.2 0 7 77 164 2 +261.07 ± 39.14
437049 ncm-dbt-05 582110 500 208 65 227 +102.22 ± 13.86 0 9 93 144 4 +217.85 ± 35.44
437048 ncm-dbt-01 581402 500 206 55 239 +108.3 ± 12.88 0 4 94 149 3 +236.51 ± 34.92
437047 ncm-dbt-04 566928 500 221 50 229 +123.81 ± 12.16 0 0 83 163 4 +280.42 ± 36.95
437046 ncm-dbt-03 585717 500 213 54 233 +114.45 ± 13.55 0 7 81 158 4 +251.89 ± 38.11
437045 ncm-dbt-02 588941 500 199 57 244 +101.46 ± 13.2 0 8 93 148 1 +221.9 ± 35.4
437044 ncm-dbt-05 582736 500 213 61 226 +109.07 ± 13.05 0 7 85 157 1 +243.0 ± 37.13
437043 ncm-dbt-01 579578 500 205 51 244 +110.6 ± 14.22 0 8 87 148 7 +234.38 ± 36.71
437042 ncm-dbt-04 568673 500 208 57 235 +108.3 ± 13.56 0 8 86 153 3 +236.51 ± 36.93
437041 ncm-dbt-03 587282 500 201 60 239 +100.7 ± 14.01 0 11 90 146 3 +215.85 ± 36.11
437040 ncm-dbt-02 586223 500 195 57 248 +98.44 ± 13.82 0 11 92 145 2 +211.87 ± 35.7
437039 ncm-dbt-05 583196 500 203 48 249 +111.37 ± 13.39 0 8 81 159 2 +247.41 ± 38.13
437038 ncm-dbt-01 581569 500 209 64 227 +103.73 ± 12.88 0 5 97 146 2 +226.0 ± 34.38

Commit

Commit ID 315f8ba4bf7d846b35f984d5e6040c14a512d9b9
Author Robert Nurnberg @ elitebook
Date 2025-10-14 15:34:17 UTC
let CI check for mate scores outside the valid range closes https://github.com/official-stockfish/Stockfish/pull/6358 No functional change
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