Dev Builds » 20220515-1820

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 01:42:51 583935 1000 261 243 496 +6.25 ± 10.27 1 100 281 116 2 +11.82 ± 20.17
ncm-dbt-02 01:42:56 587878 1000 251 237 512 +4.86 ± 10.89 0 119 250 129 2 +8.34 ± 21.56
ncm-dbt-03 01:42:42 588047 1000 272 242 486 +10.43 ± 10.7 0 106 261 130 3 +18.78 ± 21.08
ncm-dbt-04 01:43:18 572864 1000 271 217 512 +18.78 ± 10.09 0 85 276 139 0 +37.67 ± 20.38
ncm-dbt-05 01:43:29 586395 1000 253 247 500 +2.08 ± 10.46 1 111 270 117 1 +4.17 ± 20.68
5000 1308 1186 2506 +8.48 ± 4.69 2 521 1338 631 8 +16.13 ± 9.29

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
398148 ncm-dbt-04 571391 500 130 112 258 +12.51 ± 14.74 0 50 132 68 0 +25.06 ± 29.65
398147 ncm-dbt-02 587113 500 122 119 259 +2.08 ± 15.36 0 62 123 65 0 +4.17 ± 30.78
398146 ncm-dbt-05 585084 500 131 123 246 +5.56 ± 14.41 1 49 141 59 0 +12.51 ± 28.5
398145 ncm-dbt-03 587367 500 140 122 238 +12.51 ± 16.07 0 60 113 76 1 +23.66 ± 31.99
398144 ncm-dbt-01 581985 500 128 121 251 +4.87 ± 14.48 1 50 140 59 0 +11.12 ± 28.63
398143 ncm-dbt-04 574337 500 141 105 254 +25.06 ± 13.75 0 35 144 71 0 +50.38 ± 27.99
398142 ncm-dbt-02 588643 500 129 118 253 +7.64 ± 15.46 0 57 127 64 2 +12.51 ± 30.29
398141 ncm-dbt-01 585885 500 133 122 245 +7.64 ± 14.59 0 50 141 57 2 +12.51 ± 28.5
398140 ncm-dbt-03 588728 500 132 120 248 +8.34 ± 14.13 0 46 148 54 2 +13.9 ± 27.56
398139 ncm-dbt-05 587707 500 122 124 254 -1.39 ± 15.17 0 62 129 58 1 -4.17 ± 30.04

Commit

Commit ID 22b7909809c731aea691184dd7c1a2b02c5946af
Author xoto10
Date 2022-05-15 18:20:37 UTC
Tune scale and optimism. Tune scale and optimism in effort to make stockfish play more aggressively. STC @ 10+0.1 th 1: LLR: 2.94 (-2.94,2.94) <0.00,2.50> Total: 27896 W: 7506 L: 7248 D: 13142 Ptnml(0-2): 103, 3047, 7388, 3309, 101 https://tests.stockfishchess.org/tests/live_elo/627fd0cfab44257388ab1f13 LTC @ 60+0.6 th 1: LLR: 2.93 (-2.94,2.94) <0.50,3.00> Total: 65576 W: 17512 L: 17178 D: 30886 Ptnml(0-2): 37, 6397, 19587, 6729, 38 https://tests.stockfishchess.org/tests/live_elo/627ff666ab44257388ab256d closes https://github.com/official-stockfish/Stockfish/pull/4025 Bench 6407734
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