Dev Builds » 20231202-1041

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 06:55:12 582246 4000 1401 649 1950 +66.1 ± 4.98 3 147 953 889 8 +136.36 ± 10.97
ncm-dbt-02 06:56:04 584992 4006 1408 667 1931 +65.01 ± 4.92 1 151 960 888 3 +134.53 ± 10.93
ncm-dbt-03 06:55:24 583899 4000 1434 654 1912 +68.63 ± 5.09 4 150 922 910 14 +141.03 ± 11.18
ncm-dbt-04 06:54:16 568474 4000 1405 683 1912 +63.41 ± 5.05 1 168 949 872 10 +129.55 ± 11.02
ncm-dbt-05 06:56:30 578316 3994 1399 665 1930 +64.58 ± 5.15 5 171 914 899 8 +133.36 ± 11.25
20000 7047 3318 9635 +65.55 ± 2.25 14 787 4698 4458 43 +134.95 ± 4.95

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
421529 ncm-dbt-02 587155 6 2 1 3 +58.33 ± 98.71 0 0 2 1 0 +120.24 ± 264.77
421528 ncm-dbt-03 584411 500 179 69 252 +77.7 ± 15.13 0 21 102 123 4 +157.24 ± 33.88
421527 ncm-dbt-05 578218 494 177 69 248 +77.2 ± 14.1 0 16 108 122 1 +161.15 ± 32.82
421526 ncm-dbt-04 564723 500 168 81 251 +61.08 ± 13.96 1 18 124 107 0 +127.76 ± 30.41
421525 ncm-dbt-02 583363 500 174 95 231 +55.36 ± 14.66 1 23 124 100 2 +112.14 ± 30.53
421524 ncm-dbt-01 581236 500 167 69 264 +68.99 ± 13.86 0 16 122 110 2 +140.62 ± 30.61
421523 ncm-dbt-04 568236 500 180 81 239 +69.71 ± 14.17 0 18 117 113 2 +142.26 ± 31.44
421522 ncm-dbt-03 584076 500 167 86 247 +56.78 ± 14.86 0 28 114 107 1 +115.23 ± 32.0
421521 ncm-dbt-05 581902 500 178 87 235 +63.95 ± 15.3 2 23 108 116 1 +134.15 ± 32.9
421520 ncm-dbt-02 585885 500 180 78 242 +71.88 ± 13.81 0 17 114 119 0 +150.51 ± 31.88
421519 ncm-dbt-01 583950 500 167 74 259 +65.38 ± 14.42 0 20 120 107 3 +130.94 ± 31.03
421518 ncm-dbt-04 567244 500 178 89 233 +62.51 ± 14.31 0 22 118 109 1 +127.76 ± 31.37
421517 ncm-dbt-03 582152 500 181 75 244 +74.79 ± 14.34 1 15 113 119 2 +155.54 ± 32.01
421516 ncm-dbt-05 579001 500 177 84 239 +65.38 ± 14.0 0 19 120 110 1 +134.15 ± 31.01
421515 ncm-dbt-01 582736 500 175 68 257 +75.52 ± 13.34 0 13 117 120 0 +158.93 ± 31.27
421514 ncm-dbt-02 584537 500 171 71 258 +70.44 ± 13.62 0 16 118 116 0 +147.19 ± 31.23
421513 ncm-dbt-04 569949 500 177 94 229 +58.21 ± 14.39 0 25 117 108 0 +119.89 ± 31.55
421512 ncm-dbt-03 585590 500 174 93 233 +56.78 ± 15.38 2 25 115 106 2 +116.78 ± 31.85
421511 ncm-dbt-01 582068 500 181 93 226 +61.79 ± 14.41 1 21 117 111 0 +129.35 ± 31.52
421510 ncm-dbt-05 575639 500 167 95 238 +50.38 ± 14.55 3 20 129 98 0 +107.54 ± 29.8
421509 ncm-dbt-02 585084 500 168 89 243 +55.36 ± 13.84 0 22 127 101 0 +113.68 ± 30.06
421508 ncm-dbt-04 569230 500 162 83 255 +55.36 ± 13.84 0 21 130 98 1 +112.14 ± 29.61
421507 ncm-dbt-03 584285 500 177 91 232 +60.36 ± 13.79 0 20 124 106 0 +124.6 ± 30.44
421506 ncm-dbt-05 576660 500 186 70 244 +82.1 ± 14.13 0 15 106 127 2 +171.02 ± 33.15
421505 ncm-dbt-02 586054 500 175 82 243 +65.38 ± 13.86 0 19 119 112 0 +135.76 ± 31.16
421504 ncm-dbt-01 582652 500 178 89 233 +62.51 ± 14.03 1 18 122 109 0 +130.94 ± 30.71
421503 ncm-dbt-04 569470 500 183 85 232 +68.99 ± 14.28 0 20 113 116 1 +142.26 ± 32.1
421502 ncm-dbt-03 582068 500 179 76 245 +72.61 ± 13.99 0 14 123 109 4 +145.54 ± 30.38
421501 ncm-dbt-05 578218 500 175 85 240 +63.23 ± 15.14 0 27 108 113 2 +127.76 ± 32.89
421500 ncm-dbt-02 584117 500 187 86 227 +71.16 ± 13.79 0 16 118 115 1 +147.19 ± 31.23
421499 ncm-dbt-01 581319 500 177 84 239 +65.38 ± 14.56 1 20 115 113 1 +135.76 ± 31.8
421498 ncm-dbt-04 570469 500 176 93 231 +58.21 ± 15.82 0 32 107 107 4 +113.68 ± 33.0
421497 ncm-dbt-03 583614 500 183 74 243 +76.97 ± 13.53 0 13 116 120 1 +160.64 ± 31.43
421496 ncm-dbt-05 579083 500 159 77 264 +57.5 ± 14.89 0 29 110 111 0 +118.33 ± 32.59
421495 ncm-dbt-02 585084 500 175 89 236 +60.36 ± 13.79 0 20 124 106 0 +124.6 ± 30.44
421494 ncm-dbt-01 582027 500 180 85 235 +66.82 ± 13.33 0 15 125 110 0 +138.99 ± 30.12
421493 ncm-dbt-04 568474 500 181 77 242 +73.33 ± 13.27 0 12 123 114 1 +152.18 ± 30.28
421492 ncm-dbt-03 585000 500 194 90 216 +73.34 ± 13.86 1 14 115 120 0 +155.54 ± 31.67
421491 ncm-dbt-01 581985 500 176 87 237 +62.51 ± 14.72 0 24 115 109 2 +126.18 ± 31.84
421490 ncm-dbt-05 577807 500 180 98 222 +57.5 ± 14.08 0 22 125 102 1 +116.78 ± 30.34
421489 ncm-dbt-02 583656 500 176 76 248 +70.44 ± 13.91 0 18 114 118 0 +147.19 ± 31.9

Commit

Commit ID 85403a89bac9fe3538ae410fe651364abf78c504
Author Taras Vuk
Date 2023-12-02 10:41:31 UTC
Skip LMR for 2nd move at the root only This patch reverts commit by Vizvezdenec: https://github.com/official-stockfish/Stockfish/commit/27139dedac14af400f5b18e2ab50aca3f8cf0e33 Passed STC: https://tests.stockfishchess.org/tests/view/65660b4a136acbc57354f13d LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 301952 W: 76271 L: 76344 D: 149337 Ptnml(0-2): 1053, 36293, 76348, 36238, 1044 Passed LTC: https://tests.stockfishchess.org/tests/view/656738ab136acbc573550e39 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 25050 W: 6283 L: 6063 D: 12704 Ptnml(0-2): 10, 2756, 6775, 2972, 12 closes https://github.com/official-stockfish/Stockfish/pull/4895 Bench: 1722961
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