Dev Builds » 20230703-1627

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 06:55:08 583737 4016 1416 674 1926 +64.94 ± 5.12 0 181 914 903 10 +132.76 ± 11.25
ncm-dbt-02 06:53:20 585308 4000 1396 721 1883 +59.2 ± 4.88 0 159 1012 824 5 +121.06 ± 10.6
ncm-dbt-03 06:53:51 585171 4000 1366 723 1911 +56.34 ± 5.14 4 193 969 824 10 +114.65 ± 10.91
ncm-dbt-04 06:54:20 568603 4012 1336 735 1941 +52.44 ± 5.05 1 206 994 801 4 +106.82 ± 10.76
ncm-dbt-05 06:54:59 577498 3972 1329 640 2003 +60.88 ± 5.1 5 172 943 861 5 +125.75 ± 11.06
20000 6843 3493 9664 +58.75 ± 2.26 10 911 4832 4213 34 +120.13 ± 4.88

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
426588 ncm-dbt-04 566730 12 5 3 4 +58.39 ± 68.56 0 0 4 2 0 +120.33 ± 161.99 ↓
426587 ncm-dbt-01 584748 16 8 5 3 +65.88 ± 61.23 0 0 5 3 0 +136.9 ± 147.45 ↓
426586 ncm-dbt-05 578547 472 162 81 229 +60.22 ± 14.05 0 18 119 99 0 +124.29 ± 31.0 ↓
426585 ncm-dbt-03 585506 500 166 85 249 +56.78 ± 14.73 0 26 119 103 2 +113.68 ± 31.27 ↓
426584 ncm-dbt-02 586350 500 164 83 253 +56.78 ± 14.05 0 22 126 101 1 +115.23 ± 30.2 ↓
426583 ncm-dbt-04 566296 500 169 79 252 +63.23 ± 13.77 0 19 122 109 0 +130.94 ± 30.71 ↓
426582 ncm-dbt-01 583950 500 169 84 247 +59.64 ± 14.99 0 28 110 111 1 +121.46 ± 32.59 ↓
426581 ncm-dbt-05 580904 500 171 78 251 +65.38 ± 14.56 1 19 118 110 2 +134.15 ± 31.33 ↓
426580 ncm-dbt-03 585590 500 174 74 252 +70.43 ± 14.48 0 21 109 119 1 +145.54 ± 32.74 ↓
426579 ncm-dbt-02 586308 500 187 101 212 +60.36 ± 13.35 0 17 130 103 0 +124.6 ± 29.47 ↓
426578 ncm-dbt-04 570428 500 166 89 245 +53.93 ± 14.46 0 27 119 104 0 +110.6 ± 31.28 ↓
426577 ncm-dbt-01 583070 500 180 87 233 +65.38 ± 14.56 0 23 112 114 1 +134.15 ± 32.28 ↓
426576 ncm-dbt-05 573406 500 172 87 241 +59.64 ± 14.04 0 21 124 104 1 +121.46 ± 30.47 ↓
426575 ncm-dbt-03 583154 500 171 100 229 +49.67 ± 14.1 0 25 130 94 1 +99.95 ± 29.7 ↓
426574 ncm-dbt-02 583070 500 170 91 239 +55.36 ± 14.12 0 24 123 103 0 +113.68 ± 30.67 ↓
426573 ncm-dbt-04 568315 500 160 93 247 +46.84 ± 15.01 0 33 118 98 1 +93.95 ± 31.44 ↓
426572 ncm-dbt-01 581402 500 168 92 240 +53.22 ± 14.56 0 25 127 95 3 +104.49 ± 30.12 ↓
426571 ncm-dbt-05 576455 500 161 76 263 +59.64 ± 14.86 0 26 115 107 2 +119.89 ± 31.85 ↓
426570 ncm-dbt-03 586774 500 177 92 231 +59.64 ± 14.59 0 24 119 105 2 +119.89 ± 31.25 ↓
426569 ncm-dbt-02 586181 500 178 85 237 +65.38 ± 13.72 0 18 121 111 0 +135.76 ± 30.83 ↓
426568 ncm-dbt-04 572840 500 181 85 234 +67.54 ± 13.8 0 17 121 111 1 +138.99 ± 30.8 ↓
426567 ncm-dbt-01 583028 500 176 80 244 +67.54 ± 14.37 0 21 113 115 1 +138.99 ± 32.11 ↓
426566 ncm-dbt-05 579826 500 169 91 240 +54.65 ± 14.22 2 19 128 101 0 +115.23 ± 29.89 ↓
426565 ncm-dbt-01 584664 500 193 88 219 +74.06 ± 13.89 0 17 111 122 0 +155.54 ± 32.36 ↓
426564 ncm-dbt-04 568434 500 167 94 239 +51.09 ± 14.45 0 28 121 101 0 +104.49 ± 31.0 ↓
426563 ncm-dbt-03 584369 500 174 90 236 +58.93 ± 14.42 0 24 119 106 1 +119.89 ± 31.25 ↓
426562 ncm-dbt-02 585970 500 169 92 239 +53.93 ± 14.19 0 25 123 102 0 +110.6 ± 30.69 ↓
426561 ncm-dbt-05 572638 500 178 75 247 +72.61 ± 14.13 1 16 112 121 0 +153.86 ± 32.2 ↓
426560 ncm-dbt-04 567918 500 161 106 233 +38.37 ± 15.17 0 38 120 91 1 +76.25 ± 31.18 ↓
426559 ncm-dbt-03 586393 500 163 92 245 +49.67 ± 15.29 2 29 115 104 0 +104.49 ± 31.86 ↓
426558 ncm-dbt-01 583237 500 187 86 227 +71.16 ± 14.64 0 19 115 112 4 +142.26 ± 31.77 ↓
426557 ncm-dbt-02 583070 500 177 90 233 +61.07 ± 13.68 0 18 128 103 1 +124.6 ± 29.8 ↓
426556 ncm-dbt-05 580572 500 151 77 272 +51.8 ± 15.65 1 34 105 110 0 +107.54 ± 33.26 ↓
426555 ncm-dbt-04 568752 500 158 94 248 +44.72 ± 13.69 0 25 136 89 0 +90.97 ± 28.88 ↓
426554 ncm-dbt-03 586350 500 167 90 243 +53.93 ± 14.73 0 26 124 97 3 +106.01 ± 30.56 ↓
426553 ncm-dbt-01 584453 500 164 73 263 +63.95 ± 14.37 0 23 113 114 0 +132.54 ± 32.13 ↓
426552 ncm-dbt-02 586097 500 176 82 242 +66.1 ± 12.69 0 11 134 105 0 +137.37 ± 28.58 ↓
426551 ncm-dbt-02 585421 500 175 97 228 +54.64 ± 14.49 0 24 127 96 3 +107.54 ± 30.1 ↓
426550 ncm-dbt-04 567720 500 169 92 239 +53.93 ± 13.91 1 19 133 96 1 +110.6 ± 29.15 ↓
426549 ncm-dbt-05 577643 500 165 75 260 +63.23 ± 13.77 0 19 122 109 0 +130.94 ± 30.71 ↓
426548 ncm-dbt-03 583237 500 174 100 226 +51.8 ± 13.94 2 18 134 96 0 +109.07 ± 29.01 ↓
426547 ncm-dbt-01 585084 500 171 79 250 +64.66 ± 14.67 0 25 108 117 0 +134.15 ± 32.9 ↓

Commit

Commit ID eb9aaf94891f17a62798c59226642fa172972204
Author Muzhen Gaming
Date 2023-07-03 16:27:33 UTC
Simplify away improvement term in null move search passed STC: https://tests.stockfishchess.org/tests/view/649c0d2edc7002ce609d33b5 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 271104 W: 72181 L: 72217 D: 126706 Ptnml(0-2): 691, 30042, 74129, 29992, 698 passed LTC: https://tests.stockfishchess.org/tests/view/649d0dd7dc7002ce609d4efa LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 183120 W: 49469 L: 49418 D: 84233 Ptnml(0-2): 84, 17636, 56063, 17699, 78 closes https://github.com/official-stockfish/Stockfish/pull/4650 Bench: 2642851
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