Dev Builds » 20250224-1816

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 06:44:21 583926 4000 1580 490 1930 +97.13 ± 4.84 3 72 774 1134 17 +208.93 ± 12.2
ncm-dbt-02 06:43:56 587328 4000 1595 489 1916 +98.63 ± 4.84 0 81 749 1153 17 +212.12 ± 12.42
ncm-dbt-03 06:47:45 586443 4026 1627 508 1891 +99.18 ± 4.8 2 69 770 1152 20 +213.33 ± 12.23
ncm-dbt-04 06:45:15 571381 3984 1598 500 1886 +98.3 ± 4.83 1 69 775 1125 22 +210.23 ± 12.18
ncm-dbt-05 06:46:08 585683 3990 1645 497 1848 +102.87 ± 4.79 2 58 749 1162 24 +222.11 ± 12.39
20000 8045 2484 9471 +99.22 ± 2.16 8 349 3817 5726 100 +213.31 ± 5.49

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
401498 ncm-dbt-03 586393 26 10 3 13 +95.87 ± 51.28 0 0 6 7 0 +209.09 ± 147.9
401497 ncm-dbt-04 570589 484 200 64 220 +100.32 ± 15.41 1 11 88 135 7 +208.53 ± 36.54
401496 ncm-dbt-05 581693 490 205 50 235 +113.8 ± 13.2 0 4 86 151 4 +249.83 ± 36.68
401495 ncm-dbt-01 584453 500 193 55 252 +98.44 ± 13.98 0 11 93 143 3 +209.91 ± 35.49
401494 ncm-dbt-02 588899 500 188 61 251 +90.22 ± 14.01 0 13 99 136 2 +190.85 ± 34.36
401493 ncm-dbt-03 585169 500 210 63 227 +105.25 ± 13.05 0 6 93 149 2 +230.16 ± 35.29
401492 ncm-dbt-04 571752 500 202 56 242 +104.49 ± 12.88 0 6 93 150 1 +230.16 ± 35.29
401491 ncm-dbt-01 584579 500 205 67 228 +98.44 ± 14.14 0 10 97 138 5 +206.01 ± 34.66
401490 ncm-dbt-02 585928 500 215 52 233 +117.55 ± 14.04 0 12 65 171 2 +265.78 ± 42.44
401489 ncm-dbt-05 588472 500 210 69 221 +100.7 ± 13.36 0 8 95 145 2 +217.85 ± 34.98
401488 ncm-dbt-03 587707 500 204 59 237 +103.73 ± 13.38 0 8 91 149 2 +226.0 ± 35.82
401487 ncm-dbt-04 571431 500 206 62 232 +102.97 ± 13.04 0 6 96 146 2 +223.94 ± 34.66
401486 ncm-dbt-01 583237 500 203 49 248 +110.6 ± 13.22 0 7 84 157 2 +245.2 ± 37.37
401485 ncm-dbt-02 586308 500 200 73 227 +90.22 ± 13.23 0 7 112 128 3 +189.0 ± 31.75
401484 ncm-dbt-05 585843 500 194 55 251 +99.2 ± 13.83 0 12 88 149 1 +215.85 ± 36.55
401483 ncm-dbt-03 582945 500 201 67 232 +95.44 ± 14.4 2 7 100 137 4 +204.07 ± 34.04
401482 ncm-dbt-04 570188 500 199 74 227 +88.74 ± 13.2 0 8 111 129 2 +187.16 ± 31.99
401481 ncm-dbt-02 584790 500 191 66 243 +88.74 ± 13.68 0 11 105 132 2 +187.16 ± 33.21
401480 ncm-dbt-01 588643 500 204 56 240 +106.01 ± 12.53 0 4 95 150 1 +234.38 ± 34.71
401479 ncm-dbt-05 580945 500 208 55 237 +109.83 ± 12.34 0 3 92 154 1 +245.2 ± 35.25
401478 ncm-dbt-03 587113 500 202 60 238 +101.46 ± 13.04 0 8 92 150 0 +223.94 ± 35.61
401477 ncm-dbt-04 571592 500 192 56 252 +96.94 ± 14.57 0 14 90 142 4 +204.07 ± 36.13
401476 ncm-dbt-01 580987 500 194 63 243 +93.2 ± 13.91 1 9 100 138 2 +200.24 ± 34.09
401475 ncm-dbt-02 588600 500 198 67 235 +93.2 ± 14.36 0 13 97 136 4 +194.57 ± 34.74
401474 ncm-dbt-05 588089 500 200 70 230 +92.45 ± 14.2 0 12 100 134 4 +192.71 ± 34.15
401473 ncm-dbt-03 587494 500 199 66 235 +94.69 ± 13.62 0 10 99 139 2 +202.15 ± 34.28
401472 ncm-dbt-04 572235 500 201 58 241 +102.22 ± 12.7 0 5 98 146 1 +223.94 ± 34.18
401471 ncm-dbt-01 583531 500 186 63 251 +87.26 ± 14.1 1 12 101 135 1 +187.16 ± 33.99
401470 ncm-dbt-02 587282 500 201 51 248 +107.54 ± 13.23 0 7 88 153 2 +236.51 ± 36.44
401469 ncm-dbt-05 585000 500 206 69 225 +97.69 ± 13.82 1 6 102 137 4 +207.95 ± 33.55
401468 ncm-dbt-03 587707 500 201 68 231 +94.69 ± 14.39 0 12 98 135 5 +196.45 ± 34.53
401467 ncm-dbt-04 571994 500 196 63 241 +94.69 ± 13.14 0 8 102 139 1 +204.07 ± 33.61
401466 ncm-dbt-01 581194 500 196 73 231 +87.26 ± 13.33 0 10 108 131 1 +185.33 ± 32.63
401465 ncm-dbt-02 589539 500 204 59 237 +103.73 ± 13.05 0 6 95 147 2 +226.0 ± 34.87
401464 ncm-dbt-05 586097 500 207 62 231 +103.73 ± 14.34 1 7 94 142 6 +219.87 ± 35.19
401463 ncm-dbt-03 585674 500 197 64 239 +94.69 ± 14.09 0 13 93 142 2 +202.15 ± 35.52
401462 ncm-dbt-02 587282 500 198 60 242 +98.44 ± 13.67 0 12 88 150 0 +215.85 ± 36.55
401461 ncm-dbt-01 584790 500 199 64 237 +96.19 ± 13.95 1 9 96 142 2 +207.95 ± 34.86
401460 ncm-dbt-04 571270 500 202 67 231 +96.19 ± 14.11 0 11 97 138 4 +202.15 ± 34.7
401459 ncm-dbt-05 589326 500 215 67 218 +106.01 ± 13.05 0 6 92 150 2 +232.26 ± 35.5
401458 ncm-dbt-03 587792 500 203 58 239 +103.73 ± 13.05 0 5 98 144 3 +223.94 ± 34.18

Commit

Commit ID 93b966829bd7d2d9d9dce49f11e20125f48d0cfd
Author FauziAkram
Date 2025-02-24 18:16:26 UTC
Simplify bestvalue update formula Passed STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 124960 W: 32598 L: 32472 D: 59890 Ptnml(0-2): 480, 14852, 31694, 14970, 484 https://tests.stockfishchess.org/tests/view/67b348bae00eea114cdba37d Passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 150306 W: 38220 L: 38132 D: 73954 Ptnml(0-2): 98, 16430, 42005, 16526, 94 https://tests.stockfishchess.org/tests/view/67b5e37918a66624a7a3f751 closes https://github.com/official-stockfish/Stockfish/pull/5898 Bench: 2146010
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