Dev Builds » 20231202-1045

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 06:54:13 584404 4000 1362 690 1948 +58.93 ± 4.94 2 164 999 830 5 +120.87 ± 10.69
ncm-dbt-02 06:55:05 586486 4000 1367 679 1954 +60.36 ± 5.13 1 187 946 855 11 +122.63 ± 11.05
ncm-dbt-03 06:56:25 587770 3996 1405 654 1937 +66.08 ± 5.02 2 152 949 883 12 +135.3 ± 11.0
ncm-dbt-04 06:55:31 570970 4004 1383 698 1923 +60.03 ± 5.07 3 175 968 846 10 +122.5 ± 10.9
ncm-dbt-05 06:55:24 584621 4000 1360 673 1967 +60.27 ± 5.1 5 175 955 858 7 +124.01 ± 10.99
20000 6877 3394 9729 +61.13 ± 2.26 13 853 4817 4272 45 +125.03 ± 4.88

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
392691 ncm-dbt-04 570589 4 2 0 2 +190.27 ± 634.3 0 0 1 0 1 +190.5 ± 634.21
392690 ncm-dbt-02 587282 500 167 82 251 +59.64 ± 14.73 0 25 117 106 2 +119.89 ± 31.55
392689 ncm-dbt-03 586858 496 174 88 234 +60.85 ± 14.32 0 22 119 106 1 +124.1 ± 31.21
392688 ncm-dbt-05 585928 500 174 74 252 +70.43 ± 14.2 0 19 113 117 1 +145.54 ± 32.08
392687 ncm-dbt-01 581194 500 168 81 251 +61.07 ± 15.05 0 28 108 113 1 +124.6 ± 32.89
392686 ncm-dbt-04 569629 500 163 71 266 +64.66 ± 14.53 1 20 116 112 1 +134.15 ± 31.65
392685 ncm-dbt-02 586943 500 173 85 242 +61.79 ± 14.82 0 25 114 109 2 +124.6 ± 31.99
392684 ncm-dbt-03 585337 500 185 87 228 +68.99 ± 14.28 1 16 119 112 2 +142.26 ± 31.1
392683 ncm-dbt-05 586393 500 172 83 245 +62.51 ± 14.72 1 21 118 108 2 +127.76 ± 31.37
392682 ncm-dbt-01 586731 500 171 100 229 +49.67 ± 13.69 0 23 133 94 0 +101.46 ± 29.24
392681 ncm-dbt-04 569789 500 171 88 241 +58.21 ± 13.69 1 17 130 102 0 +121.46 ± 29.51
392680 ncm-dbt-02 589625 500 175 81 244 +66.1 ± 14.45 0 22 113 114 1 +135.76 ± 32.12
392679 ncm-dbt-05 582318 500 157 88 255 +48.25 ± 14.03 0 26 129 95 0 +98.44 ± 29.86
392678 ncm-dbt-03 589753 500 172 74 254 +68.99 ± 14.14 0 18 118 112 2 +140.62 ± 31.28
392677 ncm-dbt-01 582527 500 172 89 239 +58.21 ± 14.53 1 21 124 102 2 +118.33 ± 30.49
392676 ncm-dbt-04 573204 500 177 83 240 +66.1 ± 14.73 0 23 112 113 2 +134.15 ± 32.28
392675 ncm-dbt-02 589155 500 165 93 242 +50.38 ± 14.41 0 28 122 100 0 +102.97 ± 30.86
392674 ncm-dbt-05 586223 500 171 84 245 +61.07 ± 14.38 0 23 118 108 1 +124.6 ± 31.38
392673 ncm-dbt-04 572638 500 175 96 229 +55.36 ± 13.7 0 21 129 100 0 +113.68 ± 29.75
392672 ncm-dbt-03 589155 500 172 71 257 +71.16 ± 14.64 0 21 109 118 2 +145.54 ± 32.74
392671 ncm-dbt-01 584243 500 160 83 257 +53.93 ± 13.77 0 22 129 99 0 +110.6 ± 29.78
392670 ncm-dbt-02 579785 500 169 89 242 +56.07 ± 14.7 0 27 117 105 1 +113.68 ± 31.56
392669 ncm-dbt-05 584076 500 163 95 242 +47.54 ± 14.53 0 29 125 95 1 +95.44 ± 30.46
392668 ncm-dbt-04 570989 500 169 89 242 +56.07 ± 13.87 0 22 126 102 0 +115.23 ± 30.2
392667 ncm-dbt-03 584790 500 171 83 246 +61.79 ± 14.14 0 21 121 107 1 +126.18 ± 30.9
392666 ncm-dbt-01 584832 500 172 84 244 +61.79 ± 13.85 0 19 125 105 1 +126.18 ± 30.27
392665 ncm-dbt-02 584916 500 174 74 252 +70.43 ± 13.32 0 13 125 111 1 +145.54 ± 30.03
392664 ncm-dbt-05 584874 500 174 82 244 +64.66 ± 14.8 0 25 109 115 1 +132.54 ± 32.75
392663 ncm-dbt-04 570669 500 176 94 230 +57.5 ± 14.76 0 27 115 107 1 +116.78 ± 31.85
392662 ncm-dbt-03 588217 500 182 89 229 +65.38 ± 14.42 1 19 117 112 1 +135.76 ± 31.48
392661 ncm-dbt-01 587494 500 171 86 243 +59.64 ± 14.04 0 22 121 107 0 +123.02 ± 30.92
392660 ncm-dbt-02 585843 500 168 89 243 +55.36 ± 14.93 1 24 123 99 3 +110.6 ± 30.69
392659 ncm-dbt-01 581485 500 185 86 229 +69.71 ± 13.14 0 12 128 109 1 +143.89 ± 29.53
392658 ncm-dbt-04 569151 500 177 94 229 +58.21 ± 14.39 1 21 123 104 1 +119.89 ± 30.63
392657 ncm-dbt-03 588089 500 166 79 255 +61.07 ± 13.68 0 19 125 106 0 +126.18 ± 30.27
392656 ncm-dbt-05 585506 500 172 76 252 +67.55 ± 14.09 2 14 120 114 0 +143.89 ± 30.92
392655 ncm-dbt-02 588345 500 176 86 238 +63.23 ± 14.47 0 23 115 111 1 +129.35 ± 31.83
392654 ncm-dbt-04 572074 500 173 83 244 +63.23 ± 15.01 0 24 116 106 4 +124.6 ± 31.69
392653 ncm-dbt-01 586731 500 163 81 256 +57.5 ± 13.66 1 17 131 101 0 +119.89 ± 29.37
392652 ncm-dbt-05 581652 500 177 91 232 +60.36 ± 14.49 2 18 123 106 1 +126.18 ± 30.59
392651 ncm-dbt-03 589967 500 183 83 234 +70.43 ± 14.05 0 16 121 110 3 +142.26 ± 30.77

Commit

Commit ID 15d47a2b3821b92c4d048f39f7f43c301299d365
Author cj5716
Date 2023-12-02 10:45:38 UTC
Remove recaptures stage in qsearch Simplify an old commit https://github.com/official-stockfish/Stockfish/commit/72760c05c64d1fb2bb71c2ac54acfbeecf513b87. Search is not stuck on the test position given r1n1n1b1/1P1P1P1P/1N1N1N2/2RnQrRq/2pKp3/3BNQbQ/k7/4Bq2 w - - 0 1 Passed STC: https://tests.stockfishchess.org/tests/view/6567050d136acbc573550919 LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 236160 W: 59475 L: 59475 D: 117210 Ptnml(0-2): 841, 28266, 59816, 28366, 791 Passed LTC: https://tests.stockfishchess.org/tests/view/6567d133136acbc573551c78 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 201690 W: 49630 L: 49593 D: 102467 Ptnml(0-2): 128, 23214, 54122, 23255, 126 closes https://github.com/official-stockfish/Stockfish/pull/4896 Bench: 1604361
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