Dev Builds » 20230604-2101

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 06:53:57 583666 4000 1289 756 1955 +46.57 ± 5.11 1 226 1022 741 10 +93.2 ± 10.6
ncm-dbt-02 06:53:44 586247 4002 1311 776 1915 +46.73 ± 5.22 0 244 992 751 14 +92.59 ± 10.79
ncm-dbt-03 06:54:55 587609 4002 1316 734 1952 +50.89 ± 5.04 2 201 1018 773 7 +103.11 ± 10.61
ncm-dbt-04 06:55:43 570800 3996 1288 719 1989 +49.81 ± 5.12 1 216 1005 765 11 +99.87 ± 10.7
ncm-dbt-05 06:54:51 586474 4000 1324 753 1923 +49.94 ± 5.1 4 207 1010 772 7 +101.46 ± 10.67
20000 6528 3738 9734 +48.79 ± 2.29 8 1094 5047 3802 49 +98.03 ± 4.77

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
393726 ncm-dbt-02 588132 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
393725 ncm-dbt-03 585464 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
393724 ncm-dbt-04 570228 496 163 92 241 +50.08 ± 14.49 0 27 124 96 1 +100.8 ± 30.56
393723 ncm-dbt-05 583950 500 163 95 242 +47.55 ± 14.13 2 21 134 93 0 +99.95 ± 29.1
393722 ncm-dbt-01 581818 500 171 90 239 +56.78 ± 14.46 0 24 123 101 2 +113.68 ± 30.67
393721 ncm-dbt-02 588217 500 165 102 233 +44.01 ± 15.86 0 39 112 96 3 +85.04 ± 32.24
393720 ncm-dbt-03 588728 500 158 97 245 +42.6 ± 14.12 0 29 131 90 0 +86.52 ± 29.64
393719 ncm-dbt-04 570629 500 163 88 249 +52.51 ± 15.31 0 29 122 94 5 +99.95 ± 30.87
393718 ncm-dbt-05 582485 500 167 93 240 +51.8 ± 13.94 0 24 128 98 0 +106.01 ± 29.96
393717 ncm-dbt-02 586858 500 166 102 232 +44.72 ± 14.77 0 32 123 94 1 +89.48 ± 30.76
393716 ncm-dbt-01 581236 500 151 86 263 +45.42 ± 14.28 0 29 127 94 0 +92.46 ± 30.18
393715 ncm-dbt-03 587240 500 162 94 244 +47.55 ± 14.13 0 27 128 95 0 +96.94 ± 30.02
393714 ncm-dbt-04 570388 500 161 72 267 +62.51 ± 14.44 0 24 113 113 0 +129.35 ± 32.14
393713 ncm-dbt-02 583489 500 175 91 234 +58.93 ± 13.58 0 17 134 97 2 +118.33 ± 28.9
393712 ncm-dbt-05 585590 500 166 91 243 +52.51 ± 14.39 0 27 121 102 0 +107.54 ± 30.99
393711 ncm-dbt-01 583112 500 150 101 249 +34.16 ± 15.29 0 39 126 82 3 +64.66 ± 30.39
393710 ncm-dbt-03 588728 500 171 87 242 +58.93 ± 14.29 0 23 121 105 1 +119.89 ± 30.94
393709 ncm-dbt-04 569749 500 163 109 228 +37.67 ± 13.53 0 26 145 78 1 +74.79 ± 27.68
393708 ncm-dbt-02 586816 500 158 99 243 +41.19 ± 14.95 0 34 125 89 2 +80.63 ± 30.5
393707 ncm-dbt-05 585421 500 170 94 236 +53.22 ± 14.69 0 27 122 99 2 +106.01 ± 30.85
393706 ncm-dbt-01 583028 500 162 88 250 +51.8 ± 14.62 0 28 121 100 1 +104.49 ± 31.0
393705 ncm-dbt-03 588132 500 174 95 231 +55.36 ± 15.44 0 31 112 104 3 +109.07 ± 32.29
393704 ncm-dbt-04 571793 500 153 92 255 +42.6 ± 14.25 1 27 132 90 0 +88.0 ± 29.49
393703 ncm-dbt-02 586097 500 168 94 238 +51.8 ± 13.8 0 21 136 91 2 +102.97 ± 28.77
393702 ncm-dbt-01 584243 500 162 105 233 +39.78 ± 13.94 1 26 138 85 0 +82.1 ± 28.65
393701 ncm-dbt-05 588345 500 166 83 251 +58.21 ± 14.53 0 26 115 109 0 +119.89 ± 31.85
393700 ncm-dbt-03 587792 500 151 89 260 +43.3 ± 13.03 0 21 146 83 0 +88.0 ± 27.39
393699 ncm-dbt-02 587409 500 160 101 239 +41.19 ± 14.83 0 35 121 94 0 +83.57 ± 31.04
393698 ncm-dbt-04 570469 500 167 89 244 +54.64 ± 14.08 0 23 127 99 1 +110.6 ± 30.08
393697 ncm-dbt-01 585211 500 174 98 228 +53.22 ± 13.73 0 20 136 92 2 +106.01 ± 28.73
393696 ncm-dbt-03 586012 500 175 96 229 +55.36 ± 14.66 1 24 121 103 1 +113.68 ± 30.97
393695 ncm-dbt-05 584201 500 169 104 227 +45.42 ± 14.68 0 29 130 88 3 +88.0 ± 29.77
393694 ncm-dbt-02 583363 500 153 90 257 +44.01 ± 15.11 0 35 118 96 1 +88.0 ± 31.44
393693 ncm-dbt-04 571793 500 151 93 256 +40.48 ± 14.65 0 34 124 92 0 +82.1 ± 30.63
393692 ncm-dbt-01 583740 500 149 100 251 +34.16 ± 14.52 0 35 132 82 1 +67.55 ± 29.58
393691 ncm-dbt-05 584201 500 158 85 257 +51.09 ± 14.31 2 21 129 98 0 +107.54 ± 29.8
393690 ncm-dbt-03 587919 500 161 84 255 +53.93 ± 13.77 0 22 129 99 0 +110.6 ± 29.78
393689 ncm-dbt-02 585843 500 165 97 238 +47.54 ± 15.05 0 31 123 93 3 +92.46 ± 30.75
393688 ncm-dbt-04 571351 500 167 84 249 +58.21 ± 14.93 0 26 118 103 3 +115.23 ± 31.41
393687 ncm-dbt-03 588472 500 163 92 245 +49.67 ± 14.51 1 24 130 93 2 +99.95 ± 29.7
393686 ncm-dbt-01 586943 500 170 88 242 +57.5 ± 14.49 0 25 119 105 1 +116.78 ± 31.26
393685 ncm-dbt-05 597600 500 165 108 227 +39.78 ± 14.61 0 32 131 85 2 +77.71 ± 29.68

Commit

Commit ID 5930c0defbe01576315d7d081447f94a01daf337
Author Guenther Demetz
Date 2023-06-04 21:01:14 UTC
Simplify away SEE verification After 4 simplificatons over PR#4453 the idea does not yield significant improvement anymore. Maybe also https://tests.stockfishchess.org/tests/view/640c88092644b62c3394c1c5 was a fluke. Passed non-regression bounds: STC: https://tests.stockfishchess.org/tests/view/64705389c079b6583146d873 LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 131936 W: 35040 L: 34930 D: 61966 Ptnml(0-2): 336, 14559, 36035, 14735, 303 LTC: https://tests.stockfishchess.org/tests/view/6471a2ade549d9cf2fb213cd LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 407700 W: 109999 L: 110164 D: 187537 Ptnml(0-2): 279, 39913, 123689, 39632, 337 closes https://github.com/official-stockfish/Stockfish/pull/4595 bench: 2675974
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