Dev Builds » 20250105-2343

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 06:49:11 583927 3996 1565 520 1911 +93.02 ± 4.99 4 95 767 1116 16 +198.82 ± 12.29
ncm-dbt-02 06:50:19 586298 4008 1564 531 1913 +91.61 ± 4.93 3 86 811 1083 21 +193.87 ± 11.92
ncm-dbt-03 06:50:16 586681 4024 1584 556 1884 +90.77 ± 4.89 1 97 801 1099 14 +192.93 ± 12.01
ncm-dbt-04 06:51:10 570354 3998 1539 549 1910 +87.86 ± 5.0 1 106 814 1058 20 +184.31 ± 11.92
ncm-dbt-05 06:49:31 583237 3974 1537 523 1914 +90.65 ± 4.89 1 97 784 1097 8 +194.01 ± 12.15
20000 7789 2679 9532 +90.78 ± 2.21 10 481 3977 5453 79 +192.75 ± 5.39

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
394298 ncm-dbt-02 588302 8 3 0 5 +136.8 ± 89.09 0 0 1 3 0 +337.69 ± 541.44
394297 ncm-dbt-03 587240 24 12 4 8 +120.37 ± 84.63 0 1 3 7 1 +231.91 ± 271.45
394296 ncm-dbt-05 582987 474 177 66 231 +82.9 ± 14.02 0 12 103 121 1 +174.61 ± 33.52
394295 ncm-dbt-01 583321 496 188 59 249 +92.49 ± 14.43 1 12 94 139 2 +198.4 ± 35.32
394294 ncm-dbt-04 569509 498 192 69 237 +87.62 ± 14.59 0 17 94 136 2 +184.4 ± 35.32
394293 ncm-dbt-02 586562 500 200 76 224 +88.0 ± 15.27 1 15 99 129 6 +179.9 ± 34.4
394292 ncm-dbt-03 586689 500 207 81 212 +89.48 ± 13.06 0 8 109 132 1 +190.85 ± 32.34
394291 ncm-dbt-05 581236 500 189 69 242 +85.04 ± 14.35 0 17 97 135 1 +179.9 ± 34.76
394290 ncm-dbt-01 586139 500 202 68 230 +95.44 ± 12.98 0 7 103 139 1 +206.01 ± 33.36
394289 ncm-dbt-04 568037 500 193 75 232 +83.57 ± 13.87 0 13 108 127 2 +174.55 ± 32.75
394288 ncm-dbt-03 589753 500 193 63 244 +92.45 ± 14.05 0 13 96 139 2 +196.45 ± 34.93
394287 ncm-dbt-02 586774 500 203 62 235 +100.7 ± 14.01 0 12 87 149 2 +217.85 ± 36.77
394286 ncm-dbt-05 582819 500 204 70 226 +95.44 ± 14.4 1 11 94 141 3 +204.07 ± 35.31
394285 ncm-dbt-01 585211 500 207 64 229 +102.22 ± 14.33 0 11 90 144 5 +215.85 ± 36.11
394284 ncm-dbt-04 571793 500 192 69 239 +87.26 ± 13.8 0 12 105 131 2 +183.51 ± 33.24
394283 ncm-dbt-03 586097 500 193 62 245 +93.2 ± 14.06 1 11 95 142 1 +202.15 ± 35.11
394282 ncm-dbt-02 583950 500 201 70 229 +93.2 ± 14.21 1 11 96 140 2 +200.24 ± 34.91
394281 ncm-dbt-05 584832 500 189 67 244 +86.52 ± 13.63 0 12 105 132 1 +183.51 ± 33.24
394280 ncm-dbt-01 584664 500 192 74 234 +83.57 ± 15.16 1 20 90 138 1 +178.11 ± 36.01
394279 ncm-dbt-04 569789 500 200 67 233 +94.69 ± 14.24 0 11 100 134 5 +196.45 ± 34.12
394278 ncm-dbt-03 585801 500 194 76 230 +83.57 ± 13.87 0 13 108 127 2 +174.55 ± 32.75
394277 ncm-dbt-02 585970 500 186 61 253 +88.74 ± 14.43 1 14 95 139 1 +190.85 ± 35.14
394276 ncm-dbt-05 582819 500 200 66 234 +95.44 ± 14.55 0 17 83 149 1 +206.01 ± 37.54
394275 ncm-dbt-01 584117 500 198 67 235 +93.2 ± 14.21 0 12 99 135 4 +194.57 ± 34.34
394274 ncm-dbt-04 568474 500 186 69 245 +82.83 ± 15.0 1 17 99 130 3 +172.78 ± 34.4
394273 ncm-dbt-03 585632 500 198 63 239 +96.19 ± 13.8 0 11 95 142 2 +206.01 ± 35.09
394272 ncm-dbt-02 585674 500 189 71 240 +83.57 ± 13.09 0 9 115 125 1 +176.33 ± 31.38
394271 ncm-dbt-05 580904 500 187 58 255 +91.71 ± 13.26 0 10 101 139 0 +198.34 ± 33.9
394270 ncm-dbt-01 584243 500 194 58 248 +96.94 ± 13.96 1 10 92 146 1 +211.87 ± 35.7
394269 ncm-dbt-03 586985 500 192 67 241 +88.74 ± 13.98 0 13 101 134 2 +187.16 ± 33.99
394268 ncm-dbt-04 574013 500 201 68 231 +94.69 ± 13.93 0 12 95 141 2 +202.15 ± 35.11
394267 ncm-dbt-02 588515 500 201 62 237 +99.2 ± 13.99 0 9 98 138 5 +207.95 ± 34.43
394266 ncm-dbt-05 583950 500 194 69 237 +88.74 ± 13.04 0 9 107 134 0 +190.85 ± 32.75
394265 ncm-dbt-01 581194 500 189 64 247 +88.74 ± 13.68 0 11 105 132 2 +187.16 ± 33.21
394264 ncm-dbt-03 585970 500 210 76 214 +95.44 ± 13.94 0 14 88 148 0 +207.95 ± 36.54
394263 ncm-dbt-02 583363 500 191 59 250 +93.95 ± 12.46 0 5 108 137 0 +204.07 ± 32.28
394262 ncm-dbt-04 569589 500 183 70 247 +79.9 ± 13.77 0 14 110 125 1 +167.53 ± 32.45
394261 ncm-dbt-01 582527 500 195 66 239 +91.71 ± 14.04 1 12 94 143 0 +200.24 ± 35.32
394260 ncm-dbt-05 586350 500 197 58 245 +99.2 ± 13.35 0 9 94 146 1 +215.85 ± 35.23
394259 ncm-dbt-03 585970 500 185 64 251 +85.78 ± 14.07 0 13 106 128 3 +178.11 ± 33.1
394258 ncm-dbt-02 587579 500 190 70 240 +85.04 ± 13.9 0 11 112 123 4 +174.55 ± 32.0
394257 ncm-dbt-04 571632 500 192 62 246 +92.45 ± 13.74 0 10 103 134 3 +194.57 ± 33.53

Commit

Commit ID 78b57339394b284ee5d1fe32e5c2c285f80df550
Author Shawn Xu
Date 2025-01-05 23:43:37 UTC
Simplify post-lmr conthist bonus Passed Non-regression STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 49184 W: 12735 L: 12528 D: 23921 Ptnml(0-2): 134, 5746, 12647, 5909, 156 https://tests.stockfishchess.org/tests/view/6765cd2e86d5ee47d954420e Passed Non-regression LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 177270 W: 45227 L: 45166 D: 86877 Ptnml(0-2): 132, 19498, 49302, 19583, 120 https://tests.stockfishchess.org/tests/view/676721fd86d5ee47d9544489 closes https://github.com/official-stockfish/Stockfish/pull/5734 Bench: 1042099
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