Dev Builds » 20220817-1756

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 06:55:28 582899 4004 1117 946 1941 +14.85 ± 5.11 7 347 1120 524 4 +30.27 ± 10.09
ncm-dbt-02 06:55:51 585733 4002 1104 982 1916 +10.59 ± 5.17 7 381 1098 513 2 +22.08 ± 10.22
ncm-dbt-03 06:54:56 585512 4000 1072 932 1996 +12.17 ± 5.19 4 380 1094 516 6 +24.01 ± 10.25
ncm-dbt-04 06:54:39 569551 3994 1124 898 1972 +19.68 ± 5.17 4 339 1087 561 6 +39.14 ± 10.28
ncm-dbt-05 06:53:33 586032 4000 1121 942 1937 +15.56 ± 5.15 5 353 1106 530 6 +31.0 ± 10.17
20000 5538 4700 9762 +14.57 ± 2.31 27 1800 5505 2644 24 +29.29 ± 4.56

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
415499 ncm-dbt-01 586266 4 2 1 1 +88.51 ± 137.63 0 0 1 1 0 +190.5 ± 634.21 ↓
415498 ncm-dbt-02 585421 2 1 1 0 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47 ↓
415496 ncm-dbt-04 569749 494 136 120 238 +11.26 ± 14.54 0 48 135 64 0 +22.54 ± 29.23 ↓
415495 ncm-dbt-03 585379 500 136 130 234 +4.17 ± 13.75 0 48 148 54 0 +8.34 ± 27.56 ↓
415494 ncm-dbt-02 585253 500 148 116 236 +22.27 ± 15.11 2 41 130 77 0 +47.55 ± 29.89 ↓
415493 ncm-dbt-01 583866 500 134 114 252 +13.9 ± 14.47 2 40 145 62 1 +29.25 ± 27.93 ↓
415492 ncm-dbt-05 585506 500 151 109 240 +29.25 ± 13.79 0 33 142 75 0 +58.93 ± 28.23 ↓
415491 ncm-dbt-04 568315 500 135 107 258 +19.48 ± 13.86 0 39 144 67 0 +39.08 ± 28.04 ↓
415490 ncm-dbt-03 586139 500 126 113 261 +9.04 ± 14.19 1 45 144 60 0 +19.48 ± 28.09 ↓
415489 ncm-dbt-05 584622 500 131 120 249 +7.64 ± 14.72 0 52 136 61 1 +13.9 ± 29.15 ↓
415488 ncm-dbt-02 588856 500 122 106 272 +11.12 ± 13.71 0 42 151 56 1 +20.87 ± 27.13 ↓
415487 ncm-dbt-01 580821 500 144 109 247 +24.36 ± 14.76 0 42 132 75 1 +47.55 ± 29.63 ↓
415486 ncm-dbt-04 569470 500 157 120 223 +25.76 ± 15.23 1 42 127 79 1 +51.8 ± 30.27 ↓
415485 ncm-dbt-03 584748 500 134 110 256 +16.69 ± 14.04 0 41 145 63 1 +32.05 ± 27.93 ↓
415484 ncm-dbt-05 587367 500 138 124 238 +9.73 ± 14.89 2 46 139 62 1 +20.87 ± 28.75 ↓
415483 ncm-dbt-01 582736 500 140 124 236 +11.12 ± 14.37 3 39 147 61 0 +26.46 ± 27.67 ↓
415482 ncm-dbt-02 583992 500 130 136 234 -4.17 ± 14.28 1 55 143 51 0 -6.95 ± 28.24 ↓
415481 ncm-dbt-04 570388 500 137 114 249 +15.99 ± 15.26 1 47 132 68 2 +30.65 ± 29.65 ↓
415480 ncm-dbt-03 585632 500 124 126 250 -1.39 ± 15.17 1 58 135 54 2 -4.17 ± 29.28 ↓
415479 ncm-dbt-01 584790 500 139 122 239 +11.82 ± 14.56 0 49 135 66 0 +23.66 ± 29.27 ↓
415478 ncm-dbt-05 586097 500 144 110 246 +23.66 ± 15.08 1 41 133 73 2 +46.13 ± 29.5 ↓
415477 ncm-dbt-02 585970 500 124 113 263 +7.64 ± 14.46 0 51 137 62 0 +15.3 ± 29.02 ↓
415476 ncm-dbt-04 569350 500 135 111 254 +16.69 ± 14.56 0 46 134 70 0 +33.46 ± 29.39 ↓
415475 ncm-dbt-03 584958 500 143 120 237 +15.99 ± 13.99 0 42 143 65 0 +32.05 ± 28.2 ↓
415474 ncm-dbt-01 580613 500 141 114 245 +18.78 ± 15.1 0 49 125 76 0 +37.67 ± 30.53 ↓
415473 ncm-dbt-05 581693 500 138 123 239 +10.43 ± 14.18 1 44 144 61 0 +22.27 ± 28.08 ↓
415472 ncm-dbt-02 584411 500 150 129 221 +14.6 ± 14.65 1 44 139 65 1 +29.25 ± 28.74 ↓
415471 ncm-dbt-04 571551 500 150 111 239 +27.16 ± 15.32 1 41 128 78 2 +53.22 ± 30.14 ↓
415470 ncm-dbt-03 585126 500 138 111 251 +18.78 ± 15.71 0 54 115 81 0 +37.67 ± 31.77 ↓
415469 ncm-dbt-05 582903 500 146 113 241 +22.96 ± 14.13 0 39 139 72 0 +46.13 ± 28.7 ↓
415468 ncm-dbt-01 581902 500 131 122 247 +6.26 ± 13.95 1 45 148 56 0 +13.9 ± 27.56 ↓
415467 ncm-dbt-02 586562 500 137 125 238 +8.34 ± 15.27 2 51 130 67 0 +19.48 ± 29.91 ↓
415466 ncm-dbt-04 569190 500 128 107 265 +14.6 ± 14.0 0 43 143 64 0 +29.25 ± 28.2 ↓
415465 ncm-dbt-03 584874 500 142 121 237 +14.6 ± 15.64 1 50 129 67 3 +26.46 ± 30.03 ↓
415464 ncm-dbt-05 581860 500 139 122 239 +11.82 ± 14.43 1 45 140 64 0 +25.06 ± 28.61 ↓
415463 ncm-dbt-01 581652 500 140 126 234 +9.73 ± 14.38 1 45 144 59 1 +19.48 ± 28.09 ↓
415462 ncm-dbt-02 585717 500 145 119 236 +18.08 ± 14.8 1 44 133 72 0 +37.67 ± 29.51 ↓
415461 ncm-dbt-04 568395 500 146 108 246 +26.46 ± 14.13 1 33 144 71 1 +53.22 ± 27.98 ↓
415460 ncm-dbt-05 598215 500 134 121 245 +9.03 ± 15.08 0 53 133 62 2 +15.3 ± 29.53 ↓
415459 ncm-dbt-01 583447 500 146 114 240 +22.26 ± 14.08 0 38 143 68 1 +43.3 ± 28.16 ↓
415458 ncm-dbt-03 587240 500 129 101 270 +19.48 ± 14.65 1 42 135 72 0 +40.48 ± 29.24 ↓
415457 ncm-dbt-02 585421 500 147 137 216 +6.95 ± 14.66 0 53 134 63 0 +13.9 ± 29.4 ↓

Commit

Commit ID 02ef1f4496965b5ad8c26ac6bc18245eaffae2ea
Author mstembera
Date 2022-08-17 17:56:15 UTC
Make key_after() more consistent with key() STC: https://tests.stockfishchess.org/tests/view/62f8547123d42b50a8dac674 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 176640 W: 47699 L: 47189 D: 81752 Ptnml(0-2): 776, 18599, 49129, 18971, 845 A bug fix plus non functional speed optimization. Position::key_after(Move m) is now consistent with Position::key() thus prefetching correct TT entries which speeds things up. Related PR #3759 closes https://github.com/official-stockfish/Stockfish/pull/4130 No functional change
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