Dev Builds » 20230313-2341

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 07:00:15 584115 4002 1261 760 1981 +43.72 ± 5.17 2 249 1000 746 4 +88.51 ± 10.75
ncm-dbt-02 07:00:12 586300 3998 1249 823 1926 +37.16 ± 5.12 4 257 1052 681 5 +75.01 ± 10.45
ncm-dbt-03 06:59:27 587577 4000 1230 810 1960 +36.62 ± 5.05 4 248 1077 666 5 +73.88 ± 10.3
ncm-dbt-04 07:00:04 571174 4000 1228 796 1976 +37.67 ± 5.2 2 269 1035 683 11 +74.61 ± 10.55
ncm-dbt-05 07:00:40 584984 4000 1267 796 1937 +41.1 ± 5.07 2 235 1063 690 10 +81.92 ± 10.37
20000 6235 3985 9780 +39.25 ± 2.29 14 1258 5227 3466 35 +78.77 ± 4.69

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
378781 ncm-dbt-01 582360 2 0 0 2 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47 ↓
378780 ncm-dbt-02 585548 498 152 106 240 +32.19 ± 14.7 1 35 130 83 0 +66.38 ± 29.84 ↓
378779 ncm-dbt-05 585885 500 161 90 249 +49.67 ± 13.4 0 21 137 92 0 +101.46 ± 28.63 ↓
378778 ncm-dbt-03 585548 500 171 92 237 +55.36 ± 14.53 0 27 117 106 0 +113.68 ± 31.56 ↓
378777 ncm-dbt-04 571391 500 147 101 252 +32.05 ± 14.64 0 37 131 81 1 +63.23 ± 29.72 ↓
378776 ncm-dbt-01 584958 500 164 98 238 +46.13 ± 14.98 0 34 116 100 0 +93.95 ± 31.72 ↓
378775 ncm-dbt-02 585885 500 154 108 238 +32.05 ± 13.98 0 33 138 79 0 +64.66 ± 28.76 ↓
378774 ncm-dbt-03 586477 500 149 93 258 +39.08 ± 13.48 1 23 145 81 0 +80.63 ± 27.63 ↓
378773 ncm-dbt-04 572558 500 165 98 237 +46.84 ± 15.01 0 31 124 92 3 +90.97 ± 30.61 ↓
378772 ncm-dbt-05 582819 500 143 94 263 +34.16 ± 14.65 0 36 130 83 1 +67.55 ± 29.85 ↓
378771 ncm-dbt-01 583782 500 161 91 248 +48.96 ± 14.47 0 29 122 99 0 +99.95 ± 30.87 ↓
378770 ncm-dbt-04 570469 500 149 101 250 +33.46 ± 14.21 1 30 140 78 1 +67.55 ± 28.46 ↓
378769 ncm-dbt-02 588047 500 165 105 230 +41.9 ± 15.12 1 34 119 96 0 +86.52 ± 31.31 ↓
378768 ncm-dbt-03 586985 500 158 105 237 +36.97 ± 14.04 0 31 135 84 0 +74.79 ± 29.13 ↓
378767 ncm-dbt-05 581402 500 169 97 234 +50.38 ± 13.15 0 19 140 91 0 +102.97 ± 28.14 ↓
378766 ncm-dbt-01 581361 500 156 103 241 +36.97 ± 14.83 0 37 123 90 0 +74.79 ± 30.78 ↓
378765 ncm-dbt-03 589240 500 147 111 242 +25.06 ± 14.81 0 43 128 79 0 +50.38 ± 30.14 ↓
378764 ncm-dbt-01 586181 500 165 101 234 +44.72 ± 14.24 1 26 131 92 0 +92.46 ± 29.6 ↓
378763 ncm-dbt-02 587325 500 147 102 251 +31.35 ± 14.86 0 40 125 85 0 +63.23 ± 30.52 ↓
378762 ncm-dbt-04 571310 500 152 101 247 +35.56 ± 14.87 0 36 129 83 2 +68.99 ± 29.98 ↓
378761 ncm-dbt-05 587452 500 150 112 238 +26.46 ± 15.15 1 40 131 76 2 +51.8 ± 29.75 ↓
378760 ncm-dbt-02 584622 500 151 92 257 +41.19 ± 15.21 0 35 124 88 3 +79.17 ± 30.64 ↓
378759 ncm-dbt-03 589710 500 152 106 242 +32.05 ± 14.38 0 35 135 79 1 +63.23 ± 29.18 ↓
378758 ncm-dbt-01 587579 500 158 96 246 +43.3 ± 14.69 0 31 128 89 2 +85.04 ± 30.07 ↓
378757 ncm-dbt-05 583154 500 170 109 221 +42.6 ± 14.78 1 29 130 88 2 +85.04 ± 29.79 ↓
378756 ncm-dbt-04 572679 500 165 105 230 +41.89 ± 14.21 0 28 136 84 2 +82.1 ± 28.94 ↓
378755 ncm-dbt-03 588728 500 148 102 250 +32.06 ± 13.15 1 24 153 72 0 +66.1 ± 26.57 ↓
378754 ncm-dbt-02 588004 500 154 98 248 +39.08 ± 14.17 0 31 132 87 0 +79.17 ± 29.53 ↓
378753 ncm-dbt-04 568872 500 159 105 236 +37.67 ± 15.38 0 40 117 92 1 +74.79 ± 31.57 ↓
378752 ncm-dbt-05 587537 500 154 96 250 +40.48 ± 15.54 0 38 119 90 3 +77.71 ± 31.31 ↓
378751 ncm-dbt-01 584285 500 143 84 273 +41.19 ± 15.33 1 35 119 94 1 +83.57 ± 31.31 ↓
378750 ncm-dbt-04 568951 500 145 92 263 +36.97 ± 14.7 0 35 128 86 1 +73.34 ± 30.1 ↓
378749 ncm-dbt-02 586054 500 153 96 251 +39.78 ± 14.48 1 30 130 89 0 +82.1 ± 29.8 ↓
378748 ncm-dbt-03 588174 500 153 106 241 +32.76 ± 15.07 2 33 133 80 2 +66.1 ± 29.44 ↓
378747 ncm-dbt-05 582987 500 164 92 244 +50.38 ± 13.72 0 22 135 92 1 +101.46 ± 28.94 ↓
378746 ncm-dbt-01 585211 500 163 94 243 +48.25 ± 14.03 0 25 132 92 1 +96.94 ± 29.43 ↓
378745 ncm-dbt-02 584916 500 173 116 211 +39.78 ± 13.24 1 19 154 74 2 +79.17 ± 26.26 ↓
378744 ncm-dbt-04 573163 500 146 93 261 +36.97 ± 14.57 1 32 130 87 0 +76.25 ± 29.82 ↓
378743 ncm-dbt-03 585759 500 152 95 253 +39.78 ± 14.61 0 32 131 85 2 +77.71 ± 29.68 ↓
378742 ncm-dbt-01 581319 500 151 93 256 +40.48 ± 14.39 0 32 128 90 0 +82.1 ± 30.08 ↓
378741 ncm-dbt-05 588643 500 156 106 238 +34.86 ± 13.9 0 30 141 78 1 +68.99 ± 28.31 ↓

Commit

Commit ID a48573e15fbd18fecb087c9fc02c38a07cece68b
Author Dubslow
Date 2023-03-13 23:41:42 UTC
More negative extensions on nonsingular nonpv nodes. Following up the previous gainer also in this nonsingular node section of code. Credit shared with @FauziAkram for realizing this nonsingular node stuff had some potential, and @XInTheDark for reminding us that !PvNodes better handle extensions/reductions than Pv. Passed STC: https://tests.stockfishchess.org/tests/view/640a7bb32644b62c339457c3 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 136776 W: 36598 L: 36149 D: 64029 Ptnml(0-2): 439, 14834, 37384, 15301, 430 Passed LTC: https://tests.stockfishchess.org/tests/view/640c43a02644b62c3394b23c LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 79536 W: 21363 L: 20984 D: 37189 Ptnml(0-2): 28, 7525, 24285, 7900, 30 closes https://github.com/official-stockfish/Stockfish/pull/4441 Bench: 4444953
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