Dev Builds » 20250321-1022

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 06:43:38 584172 4010 1627 494 1889 +100.91 ± 4.81 1 67 758 1156 23 +216.9 ± 12.33
ncm-dbt-02 06:43:16 585114 4000 1650 443 1907 +108.21 ± 4.66 1 51 704 1228 16 +238.66 ± 12.79
ncm-dbt-03 06:44:22 585614 3994 1616 446 1932 +104.85 ± 4.72 0 53 746 1173 25 +226.71 ± 12.4
ncm-dbt-04 06:44:44 569743 3996 1618 480 1898 +101.76 ± 4.86 2 70 736 1168 22 +219.65 ± 12.53
ncm-dbt-05 06:44:30 585164 4000 1634 473 1893 +103.83 ± 4.85 1 68 726 1179 26 +223.94 ± 12.61
20000 8145 2336 9519 +103.9 ± 2.14 5 309 3670 5904 112 +225.08 ± 5.6

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
405216 ncm-dbt-01 586604 10 4 0 6 +147.05 ± 74.68 0 0 1 4 0 +381.35 ± 516.06
405215 ncm-dbt-04 570308 496 204 52 240 +110.0 ± 13.46 0 8 82 156 2 +243.46 ± 37.88
405214 ncm-dbt-03 586350 494 196 51 247 +105.07 ± 14.15 0 7 95 138 7 +219.21 ± 34.91
405213 ncm-dbt-05 587749 500 219 53 228 +119.89 ± 13.16 1 4 75 168 2 +275.45 ± 39.63
405212 ncm-dbt-02 584874 500 207 54 239 +109.83 ± 12.88 1 3 89 156 1 +247.41 ± 36.02
405211 ncm-dbt-01 586012 500 200 69 231 +93.2 ± 14.06 0 12 98 137 3 +196.45 ± 34.53
405210 ncm-dbt-03 582903 500 199 64 237 +96.19 ± 13.32 0 8 101 139 2 +206.01 ± 33.8
405209 ncm-dbt-05 587367 500 203 63 234 +99.95 ± 14.61 0 14 86 146 4 +211.87 ± 36.97
405208 ncm-dbt-04 571632 500 195 63 242 +93.95 ± 13.77 0 11 98 139 2 +200.24 ± 34.5
405207 ncm-dbt-02 580862 500 202 55 243 +105.25 ± 13.39 0 9 86 154 1 +232.26 ± 36.96
405206 ncm-dbt-01 582736 500 197 72 231 +88.74 ± 13.52 0 11 104 134 1 +189.0 ± 33.39
405205 ncm-dbt-03 585970 500 202 65 233 +97.69 ± 13.01 0 7 100 142 1 +211.87 ± 33.93
405204 ncm-dbt-04 570589 500 206 54 240 +109.07 ± 14.37 1 8 84 152 5 +236.51 ± 37.42
405203 ncm-dbt-05 583489 500 200 54 246 +104.49 ± 13.22 0 7 92 149 2 +228.08 ± 35.56
405202 ncm-dbt-02 582903 500 205 53 242 +109.07 ± 13.23 0 7 86 155 2 +240.82 ± 36.9
405201 ncm-dbt-01 585885 500 204 66 230 +98.44 ± 13.01 0 7 99 143 1 +213.85 ± 34.13
405200 ncm-dbt-03 585717 500 202 50 248 +109.07 ± 13.05 0 6 88 154 2 +240.82 ± 36.39
405199 ncm-dbt-02 586181 500 218 63 219 +111.37 ± 11.96 0 1 94 154 1 +249.64 ± 34.56
405198 ncm-dbt-04 567442 500 209 53 238 +112.14 ± 13.39 0 5 89 151 5 +243.0 ± 36.1
405197 ncm-dbt-01 582819 500 206 55 239 +108.3 ± 13.89 1 5 91 148 5 +234.38 ± 35.72
405196 ncm-dbt-05 584034 500 209 57 234 +109.07 ± 13.56 0 7 88 151 4 +236.51 ± 36.44
405195 ncm-dbt-03 584790 500 202 53 245 +106.77 ± 13.39 0 8 87 153 2 +234.38 ± 36.71
405194 ncm-dbt-02 586985 500 204 61 235 +102.22 ± 13.54 0 11 85 154 0 +226.0 ± 37.21
405193 ncm-dbt-04 567759 500 201 63 236 +98.44 ± 12.67 0 5 103 141 1 +213.85 ± 33.21
405192 ncm-dbt-05 582068 500 196 68 236 +90.96 ± 13.4 0 8 109 130 3 +190.85 ± 32.34
405191 ncm-dbt-01 583614 500 204 50 246 +110.6 ± 12.88 0 5 88 155 2 +245.2 ± 36.32
405190 ncm-dbt-03 585928 500 210 58 232 +109.07 ± 13.89 0 8 87 150 5 +234.38 ± 36.71
405189 ncm-dbt-02 588472 500 214 50 236 +118.33 ± 12.81 0 2 87 156 5 +261.07 ± 36.27
405188 ncm-dbt-05 587197 500 198 59 243 +99.2 ± 14.15 0 13 87 148 2 +213.85 ± 36.76
405187 ncm-dbt-04 570629 500 200 72 228 +90.96 ± 13.56 0 11 101 137 1 +194.57 ± 33.94
405186 ncm-dbt-01 583279 500 203 70 227 +94.69 ± 13.62 0 9 102 136 3 +200.24 ± 33.67
405185 ncm-dbt-03 585548 500 201 53 246 +106.01 ± 12.35 0 3 97 149 1 +234.38 ± 34.19
405184 ncm-dbt-01 582444 500 197 54 249 +102.22 ± 13.54 0 9 91 148 2 +221.9 ± 35.86
405183 ncm-dbt-04 568236 500 196 48 256 +106.01 ± 13.39 0 9 85 155 1 +234.38 ± 37.19
405182 ncm-dbt-02 586731 500 199 52 249 +105.25 ± 13.72 0 9 88 150 3 +228.08 ± 36.51
405181 ncm-dbt-05 585759 500 207 55 238 +109.07 ± 14.05 0 9 85 151 5 +234.38 ± 37.19
405180 ncm-dbt-01 584159 500 212 58 230 +110.6 ± 14.22 0 9 84 151 6 +236.51 ± 37.42
405179 ncm-dbt-03 587707 500 204 52 244 +109.07 ± 13.56 0 6 91 148 5 +234.38 ± 35.72
405178 ncm-dbt-04 571351 500 207 75 218 +93.95 ± 14.96 1 13 94 137 5 +196.45 ± 35.33
405177 ncm-dbt-05 583656 500 202 64 234 +98.44 ± 13.34 0 6 104 136 4 +207.95 ± 33.1
405176 ncm-dbt-02 583908 500 201 55 244 +104.49 ± 13.71 0 9 89 149 3 +226.0 ± 36.29

Commit

Commit ID 0dabf4f3fab2356111cbcf058be167bd43ac2479
Author FauziAkram
Date 2025-03-21 10:22:25 UTC
Removing the conditional bonus calculation The new value is just a guessed value. Passed STC: https://tests.stockfishchess.org/tests/view/67d5ee09517865b4a2dfd2df LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 52128 W: 13516 L: 13312 D: 25300 Ptnml(0-2): 157, 6044, 13451, 6262, 150 Passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 42384 W: 10855 L: 10657 D: 20872 Ptnml(0-2): 19, 4554, 11852, 4744, 23 https://tests.stockfishchess.org/tests/view/67d5f9d3517865b4a2dfd2ef closes https://github.com/official-stockfish/Stockfish/pull/5933 Bench: 2030154
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