Dev Builds » 20250321-1019

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 06:45:49 583852 4000 1648 445 1907 +107.82 ± 4.73 0 54 714 1207 25 +234.91 ± 12.7
ncm-dbt-02 06:46:43 585686 4004 1607 460 1937 +102.39 ± 4.86 1 75 723 1182 21 +221.36 ± 12.65
ncm-dbt-03 06:45:39 586967 4000 1618 468 1914 +102.78 ± 4.72 0 63 740 1181 16 +223.43 ± 12.48
ncm-dbt-04 06:46:35 570864 4000 1590 468 1942 +100.14 ± 4.89 1 83 727 1171 18 +216.1 ± 12.62
ncm-dbt-05 06:47:30 585324 3996 1604 461 1931 +102.23 ± 4.74 0 67 735 1182 14 +222.44 ± 12.53
20000 8067 2302 9631 +103.07 ± 2.14 2 342 3639 5923 94 +223.59 ± 5.63

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
405300 ncm-dbt-02 583196 4 2 0 2 +190.27 ± 27.79 0 0 0 2 0 +1199.83 ± 312.71
405299 ncm-dbt-05 582903 496 200 51 245 +107.69 ± 13.46 0 6 91 147 4 +232.62 ± 35.71
405298 ncm-dbt-03 588686 500 195 54 251 +100.7 ± 13.85 0 13 83 154 0 +221.9 ± 37.65
405297 ncm-dbt-01 584201 500 213 56 231 +112.91 ± 13.39 0 8 79 161 2 +251.89 ± 38.63
405296 ncm-dbt-02 583614 500 202 47 251 +111.37 ± 13.89 0 9 81 156 4 +243.0 ± 38.14
405295 ncm-dbt-04 569390 500 197 51 252 +104.49 ± 13.22 0 8 89 152 1 +230.16 ± 36.26
405294 ncm-dbt-05 586097 500 191 52 257 +99.2 ± 13.67 0 10 93 145 2 +213.85 ± 35.47
405293 ncm-dbt-03 586223 500 199 44 257 +111.37 ± 13.89 0 9 81 156 4 +243.0 ± 38.14
405292 ncm-dbt-02 583782 500 205 62 233 +102.22 ± 13.37 0 8 93 147 2 +221.9 ± 35.4
405291 ncm-dbt-01 583363 500 208 55 237 +109.83 ± 13.4 0 4 95 145 6 +234.38 ± 34.71
405290 ncm-dbt-04 569949 500 204 61 235 +102.22 ± 13.86 0 10 90 147 3 +219.87 ± 36.1
405289 ncm-dbt-05 589112 500 203 61 236 +101.46 ± 13.2 0 7 96 145 2 +219.87 ± 34.73
405288 ncm-dbt-03 584622 500 211 57 232 +110.6 ± 12.88 0 5 88 155 2 +245.2 ± 36.32
405287 ncm-dbt-01 583363 500 207 45 248 +116.77 ± 12.83 0 3 86 157 4 +258.75 ± 36.62
405286 ncm-dbt-02 582444 500 200 49 251 +108.3 ± 13.56 0 10 80 159 1 +240.82 ± 38.39
405285 ncm-dbt-04 573284 500 199 57 244 +101.46 ± 13.37 1 7 91 151 0 +226.0 ± 35.82
405284 ncm-dbt-05 584369 500 199 63 238 +96.94 ± 14.12 0 13 90 145 2 +207.95 ± 36.13
405283 ncm-dbt-03 585379 500 199 70 231 +91.71 ± 13.42 0 11 99 140 0 +198.34 ± 34.31
405282 ncm-dbt-01 584916 500 213 58 229 +111.37 ± 13.89 0 10 78 159 3 +245.2 ± 38.89
405281 ncm-dbt-02 585928 500 202 58 240 +102.97 ± 13.87 0 10 89 148 3 +221.9 ± 36.31
405280 ncm-dbt-04 569709 500 191 55 254 +96.94 ± 14.27 0 13 91 143 3 +206.01 ± 35.92
405279 ncm-dbt-05 583489 500 197 52 251 +103.73 ± 13.38 0 9 88 152 1 +228.08 ± 36.51
405278 ncm-dbt-03 588047 500 206 62 232 +102.97 ± 13.21 0 8 91 150 1 +226.0 ± 35.82
405277 ncm-dbt-01 580033 500 203 49 248 +110.6 ± 13.22 0 6 87 154 3 +243.0 ± 36.62
405276 ncm-dbt-02 586774 500 203 52 245 +108.3 ± 13.73 0 10 81 157 2 +238.66 ± 38.15
405275 ncm-dbt-04 572034 500 203 58 239 +103.73 ± 14.34 0 13 82 152 3 +223.94 ± 37.87
405274 ncm-dbt-05 587834 500 207 54 239 +109.83 ± 13.23 0 7 85 156 2 +243.0 ± 37.13
405273 ncm-dbt-01 582611 500 201 58 241 +102.22 ± 13.37 0 5 102 138 5 +215.85 ± 33.4
405272 ncm-dbt-03 587537 500 203 56 241 +105.25 ± 13.22 0 4 100 141 5 +223.94 ± 33.69
405271 ncm-dbt-02 586943 500 196 70 234 +89.48 ± 14.15 1 11 101 135 2 +190.85 ± 33.97
405270 ncm-dbt-04 570829 500 204 64 232 +99.95 ± 14.0 0 11 91 145 3 +213.85 ± 35.9
405269 ncm-dbt-05 582736 500 206 58 236 +106.01 ± 12.88 0 7 88 155 0 +236.51 ± 36.44
405268 ncm-dbt-03 586562 500 211 52 237 +114.45 ± 12.85 0 3 89 154 4 +251.89 ± 35.92
405267 ncm-dbt-01 584285 500 193 67 240 +89.48 ± 13.69 0 12 101 136 1 +190.85 ± 33.97
405266 ncm-dbt-02 586985 500 198 62 240 +96.94 ± 13.33 0 7 103 137 3 +206.01 ± 33.36
405265 ncm-dbt-04 568434 500 203 52 245 +108.3 ± 13.4 0 7 88 152 3 +236.51 ± 36.44
405264 ncm-dbt-02 591512 500 199 60 241 +99.2 ± 13.99 0 10 95 141 4 +209.91 ± 35.06
405263 ncm-dbt-03 588686 500 194 73 233 +85.78 ± 13.14 0 10 109 131 0 +183.51 ± 32.46
405262 ncm-dbt-01 588047 500 210 57 233 +109.83 ± 12.88 0 6 86 157 1 +245.2 ± 36.85
405261 ncm-dbt-05 586054 500 201 70 229 +93.2 ± 13.12 0 8 104 137 1 +200.24 ± 33.24
405260 ncm-dbt-04 573284 500 189 70 241 +84.3 ± 14.03 0 14 105 129 2 +176.33 ± 33.3

Commit

Commit ID 9045f17c3f19a7b779e4baf71689ddd650f5d64c
Author Shawn Xu
Date 2025-03-21 10:19:45 UTC
Simplify captures PCM Passed Non-regression STC: LLR: 2.92 (-2.94,2.94) <-1.75,0.25> Total: 229856 W: 59258 L: 59252 D: 111346 Ptnml(0-2): 746, 27330, 58714, 27448, 690 https://tests.stockfishchess.org/tests/view/67d3fdac517865b4a2dfcef4 Passed Non-regression LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 107652 W: 27470 L: 27338 D: 52844 Ptnml(0-2): 56, 11646, 30280, 11798, 46 https://tests.stockfishchess.org/tests/view/67d5f972517865b4a2dfd2ec closes https://github.com/official-stockfish/Stockfish/pull/5931 Bench: 1842520
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