Dev Builds » 20230922-1702

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 06:57:00 585167 4010 1388 717 1905 +58.69 ± 4.94 2 167 998 834 4 +120.54 ± 10.7
ncm-dbt-02 06:55:47 587379 4000 1394 673 1933 +63.32 ± 5.04 4 159 958 870 9 +130.15 ± 10.95
ncm-dbt-03 06:57:15 587388 4014 1409 709 1896 +61.21 ± 5.04 4 163 981 847 12 +124.91 ± 10.81
ncm-dbt-04 06:56:11 570653 3998 1373 702 1923 +58.87 ± 4.93 1 167 993 836 2 +121.13 ± 10.73
ncm-dbt-05 06:57:11 584253 3978 1357 690 1931 +58.81 ± 5.18 5 185 947 842 10 +120.22 ± 11.04
20000 6921 3491 9588 +60.18 ± 2.25 16 841 4877 4229 37 +123.38 ± 4.85

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
403591 ncm-dbt-01 582318 10 5 2 3 +107.43 ± 84.35 0 0 2 3 0 +240.65 ± 570.11 ↓
403590 ncm-dbt-03 588004 14 5 2 7 +75.6 ± 101.52 0 1 2 4 0 +159.18 ± 377.67 ↓
403589 ncm-dbt-05 582652 478 166 95 217 +51.99 ± 14.72 0 25 119 94 1 +104.83 ± 31.19 ↓
403588 ncm-dbt-04 569509 498 168 81 249 +61.33 ± 14.43 1 21 117 110 0 +128.32 ± 31.51 ↓
403587 ncm-dbt-02 586393 500 171 90 239 +56.78 ± 14.05 0 23 123 104 0 +116.78 ± 30.65 ↓
403586 ncm-dbt-01 586139 500 172 97 231 +52.51 ± 13.84 1 20 132 97 0 +109.07 ± 29.32 ↓
403585 ncm-dbt-03 585759 500 173 76 251 +68.27 ± 13.39 0 14 126 109 1 +140.62 ± 29.93 ↓
403584 ncm-dbt-05 584832 500 157 85 258 +50.38 ± 14.68 1 27 121 101 0 +104.49 ± 31.0 ↓
403583 ncm-dbt-04 569031 500 160 77 263 +58.21 ± 13.83 0 21 125 104 0 +119.89 ± 30.32 ↓
403582 ncm-dbt-02 588302 500 188 88 224 +70.44 ± 14.2 1 16 116 116 1 +147.19 ± 31.57 ↓
403581 ncm-dbt-01 586520 500 163 79 258 +58.93 ± 14.01 0 22 122 106 0 +121.46 ± 30.78 ↓
403580 ncm-dbt-03 586774 500 180 89 231 +63.95 ± 13.94 0 20 119 111 0 +132.54 ± 31.18 ↓
403579 ncm-dbt-05 587452 500 183 99 218 +58.93 ± 14.83 1 24 116 108 1 +121.46 ± 31.7 ↓
403578 ncm-dbt-04 568792 500 163 90 247 +51.09 ± 13.9 0 24 129 97 0 +104.49 ± 29.82 ↓
403577 ncm-dbt-01 585759 500 185 100 215 +59.64 ± 14.18 0 22 122 105 1 +121.46 ± 30.78 ↓
403576 ncm-dbt-02 589240 500 164 90 246 +51.8 ± 14.75 3 21 125 101 0 +110.6 ± 30.39 ↓
403575 ncm-dbt-03 586604 500 177 91 232 +60.36 ± 14.35 1 20 122 106 1 +124.6 ± 30.76 ↓
403574 ncm-dbt-04 568951 500 177 71 252 +74.79 ± 14.34 0 20 104 126 0 +157.24 ± 33.54 ↓
403573 ncm-dbt-05 582193 500 165 71 264 +66.1 ± 14.31 0 21 115 113 1 +135.76 ± 31.8 ↓
403572 ncm-dbt-01 585759 500 168 95 237 +51.09 ± 13.48 0 21 135 94 0 +104.49 ± 28.91 ↓
403571 ncm-dbt-02 586520 500 178 80 242 +68.99 ± 14.42 0 20 114 114 2 +140.62 ± 31.94 ↓
403570 ncm-dbt-03 588047 500 162 100 238 +43.31 ± 14.29 1 27 131 91 0 +89.48 ± 29.62 ↓
403569 ncm-dbt-04 572074 500 184 106 210 +54.64 ± 12.77 0 14 145 90 1 +110.6 ± 27.2 ↓
403568 ncm-dbt-05 585885 500 179 81 240 +68.99 ± 14.14 0 18 118 112 2 +140.62 ± 31.28 ↓
403567 ncm-dbt-01 585337 500 178 82 240 +67.55 ± 14.37 0 22 110 118 0 +140.62 ± 32.58 ↓
403566 ncm-dbt-02 588302 500 169 79 252 +63.23 ± 13.03 0 12 138 98 2 +127.76 ± 28.07 ↓
403565 ncm-dbt-03 586012 500 178 85 237 +65.38 ± 14.42 0 20 120 107 3 +130.94 ± 31.03 ↓
403564 ncm-dbt-04 570989 500 190 89 221 +71.16 ± 14.08 0 19 111 120 0 +148.85 ± 32.4 ↓
403563 ncm-dbt-05 584117 500 177 91 232 +60.36 ± 14.76 2 18 125 102 3 +123.02 ± 30.3 ↓
403562 ncm-dbt-01 584664 500 180 98 222 +57.5 ± 14.08 0 22 125 102 1 +116.78 ± 30.34 ↓
403561 ncm-dbt-03 588686 500 176 88 236 +61.79 ± 15.6 2 25 108 113 2 +127.76 ± 32.89 ↓
403560 ncm-dbt-02 586774 500 171 77 252 +66.1 ± 14.73 0 24 109 116 1 +135.76 ± 32.75 ↓
403559 ncm-dbt-04 572074 500 173 95 232 +54.65 ± 14.49 0 27 118 105 0 +112.14 ± 31.42 ↓
403558 ncm-dbt-05 582611 500 166 83 251 +58.21 ± 14.66 1 23 119 106 1 +119.89 ± 31.25 ↓
403557 ncm-dbt-02 585885 500 183 93 224 +63.23 ± 14.75 0 25 111 113 1 +129.35 ± 32.44 ↓
403556 ncm-dbt-01 583196 500 172 75 253 +68.27 ± 13.83 0 16 123 109 2 +138.99 ± 30.46 ↓
403555 ncm-dbt-03 587579 500 181 89 230 +64.66 ± 14.12 0 20 119 110 1 +132.54 ± 31.18 ↓
403554 ncm-dbt-04 573810 500 158 93 249 +45.42 ± 13.3 0 21 144 84 1 +90.97 ± 27.66 ↓
403553 ncm-dbt-05 584285 500 164 85 251 +55.36 ± 14.93 0 29 114 106 1 +112.14 ± 32.0 ↓
403552 ncm-dbt-01 586816 500 165 89 246 +53.22 ± 14.15 1 22 127 100 0 +110.6 ± 30.08 ↓
403551 ncm-dbt-02 587622 500 170 76 254 +66.1 ± 14.03 0 18 122 108 2 +134.15 ± 30.68 ↓
403550 ncm-dbt-03 589027 500 177 89 234 +61.79 ± 13.85 0 16 134 96 4 +121.46 ± 28.86 ↓

Commit

Commit ID 0e32287af470dee230a30d9f513682c3ce798668
Author peregrineshahin
Date 2023-09-22 17:02:18 UTC
Reorder some lines Now that qsearch has its own repetition detection we can flip the order of lines and remove the guard of depth < 0 which is not needed after reordering (i.e. it was there to prevent checking repetition again at depth ==0). Passed STC: https://tests.stockfishchess.org/tests/view/6502ecbb2cd016da89abc3fb LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 69536 W: 17668 L: 17490 D: 34378 Ptnml(0-2): 190, 7652, 18929, 7784, 213 Passed LTC: https://tests.stockfishchess.org/tests/view/6505ce9072620bc881ea9086 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 52116 W: 13294 L: 13113 D: 25709 Ptnml(0-2): 26, 5176, 15471, 5361, 24 closes https://github.com/official-stockfish/Stockfish/pull/4791 No functional change
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