Dev Builds » 20250126-2142

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 06:49:18 584040 4008 1562 523 1923 +92.17 ± 4.95 4 90 790 1103 17 +196.44 ± 12.09
ncm-dbt-02 06:49:29 586007 3992 1598 544 1850 +93.96 ± 4.84 1 85 781 1117 12 +201.46 ± 12.16
ncm-dbt-03 06:49:29 587641 4010 1546 521 1943 +90.82 ± 5.03 6 97 786 1098 18 +193.28 ± 12.14
ncm-dbt-04 06:47:44 571086 4000 1576 529 1895 +93.11 ± 4.92 0 90 796 1091 23 +196.45 ± 12.04
ncm-dbt-05 06:49:46 585414 3990 1539 536 1915 +89.25 ± 4.97 2 100 802 1075 16 +188.88 ± 12.0
20000 7821 2653 9526 +91.86 ± 2.21 13 462 3955 5484 86 +195.28 ± 5.4

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
397322 ncm-dbt-01 584076 8 4 2 2 +88.62 ± 93.84 0 0 2 2 0 +190.67 ± 458.56
397321 ncm-dbt-03 586604 10 3 1 6 +70.41 ± 134.07 0 1 1 3 0 +147.19 ± 653.91
397320 ncm-dbt-02 585295 492 202 56 234 +106.3 ± 13.53 0 6 92 144 4 +228.72 ± 35.48
397319 ncm-dbt-05 583740 490 177 59 254 +85.34 ± 14.55 0 16 97 130 2 +178.77 ± 34.76
397318 ncm-dbt-04 571230 500 196 61 243 +96.19 ± 13.95 0 12 93 143 2 +206.01 ± 35.51
397317 ncm-dbt-03 587749 500 196 71 233 +88.74 ± 13.98 0 13 101 134 2 +187.16 ± 33.99
397316 ncm-dbt-01 586435 500 200 70 230 +92.46 ± 14.2 1 10 100 136 3 +196.45 ± 34.12
397315 ncm-dbt-02 587707 500 202 64 234 +98.44 ± 13.51 0 10 93 146 1 +213.85 ± 35.47
397314 ncm-dbt-05 587622 500 189 69 242 +85.04 ± 14.35 1 15 97 137 0 +183.51 ± 34.76
397313 ncm-dbt-04 570709 500 198 71 231 +90.22 ± 14.46 0 15 96 136 3 +189.0 ± 34.95
397312 ncm-dbt-01 584916 500 185 66 249 +84.31 ± 14.76 2 13 101 132 2 +179.9 ± 34.03
397311 ncm-dbt-03 588771 500 194 68 238 +89.48 ± 15.16 1 17 90 139 3 +189.0 ± 36.08
397310 ncm-dbt-05 587494 500 200 74 226 +89.48 ± 14.3 0 15 96 137 2 +189.0 ± 34.95
397309 ncm-dbt-02 588217 500 192 77 231 +81.37 ± 13.96 1 12 109 127 1 +172.78 ± 32.58
397308 ncm-dbt-04 569270 500 199 67 234 +93.95 ± 13.13 0 8 103 138 1 +202.15 ± 33.42
397307 ncm-dbt-01 582193 500 196 56 248 +99.95 ± 12.86 0 6 99 144 1 +217.85 ± 34.06
397306 ncm-dbt-03 586731 500 189 61 250 +90.96 ± 14.32 0 14 97 136 3 +190.85 ± 34.75
397305 ncm-dbt-05 584034 500 203 71 226 +93.95 ± 12.8 0 6 107 136 1 +202.15 ± 32.55
397304 ncm-dbt-02 585000 500 191 67 242 +88.0 ± 13.66 0 12 103 134 1 +187.16 ± 33.6
397303 ncm-dbt-04 570388 500 191 72 237 +84.3 ± 14.18 0 15 103 130 2 +176.33 ± 33.67
397302 ncm-dbt-01 582778 500 195 66 239 +91.71 ± 14.63 1 12 98 135 4 +192.71 ± 34.55
397301 ncm-dbt-03 588430 500 185 63 252 +86.52 ± 13.93 0 13 104 131 2 +181.7 ± 33.45
397300 ncm-dbt-02 578959 500 208 70 222 +98.44 ± 13.98 0 11 93 143 3 +209.91 ± 35.49
397299 ncm-dbt-05 585632 500 192 60 248 +93.95 ± 13.92 0 11 99 137 3 +198.34 ± 34.31
397298 ncm-dbt-01 583908 500 191 69 240 +86.52 ± 13.93 0 13 104 131 2 +181.7 ± 33.45
397297 ncm-dbt-04 571190 500 195 74 231 +85.78 ± 13.77 0 12 107 129 2 +179.9 ± 32.89
397296 ncm-dbt-03 587749 500 196 65 239 +93.2 ± 13.75 1 10 96 143 0 +204.07 ± 34.89
397295 ncm-dbt-05 586477 500 191 76 233 +81.36 ± 13.66 0 12 113 123 2 +169.27 ± 31.88
397294 ncm-dbt-02 587919 500 196 68 236 +90.97 ± 13.72 0 13 96 141 0 +196.45 ± 34.93
397293 ncm-dbt-04 571351 500 197 58 245 +99.2 ± 13.02 0 5 104 138 3 +211.87 ± 33.02
397292 ncm-dbt-01 582861 500 199 66 235 +94.69 ± 13.3 0 10 97 143 0 +206.01 ± 34.66
397291 ncm-dbt-03 587962 500 193 63 244 +92.46 ± 13.9 1 9 101 137 2 +198.34 ± 33.9
397290 ncm-dbt-02 585548 500 205 70 225 +96.19 ± 13.32 0 8 101 139 2 +206.01 ± 33.8
397289 ncm-dbt-05 583782 500 189 57 254 +93.95 ± 14.96 1 14 91 140 4 +198.34 ± 35.92
397288 ncm-dbt-04 571150 500 203 56 241 +105.25 ± 14.04 0 12 81 155 2 +230.16 ± 38.13
397287 ncm-dbt-03 587325 500 203 63 234 +99.95 ± 14.0 0 10 94 142 4 +211.87 ± 35.26
397286 ncm-dbt-01 584748 500 188 65 247 +87.26 ± 13.8 0 13 102 134 1 +185.33 ± 33.81
397285 ncm-dbt-02 589411 500 202 72 226 +92.45 ± 13.74 0 13 94 143 0 +200.24 ± 35.32
397284 ncm-dbt-04 573406 500 197 70 233 +90.22 ± 14.6 0 11 109 122 8 +179.9 ± 32.5
397283 ncm-dbt-05 584537 500 198 70 232 +90.96 ± 13.72 0 11 102 135 2 +192.71 ± 33.75
397282 ncm-dbt-01 584453 500 204 63 233 +100.7 ± 14.47 0 13 87 146 4 +213.85 ± 36.76
397281 ncm-dbt-03 587452 500 187 66 247 +85.78 ± 14.79 3 10 102 133 2 +185.33 ± 33.81

Commit

Commit ID a016abd6982d1f8f1b0f5175b0005c8749c0925b
Author Nonlinear2
Date 2025-01-26 21:42:41 UTC
Decrease all stats malus according to move count Passed STC: https://tests.stockfishchess.org/tests/view/6794c4634f7de645171fb341 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 28096 W: 7412 L: 7106 D: 13578 Ptnml(0-2): 97, 3194, 7148, 3524, 85 Passed LTC: https://tests.stockfishchess.org/tests/view/6794ea13406a4efe9eb7d06b LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 58086 W: 15049 L: 14684 D: 28353 Ptnml(0-2): 27, 6344, 15957, 6667, 48 closes https://github.com/official-stockfish/Stockfish/pull/5823 Bench: 1711170
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