Dev Builds » 20211025-1026

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 06:53:11 582994 4000 716 1316 1968 -52.51 ± 5.28 13 808 947 230 2 -105.44 ± 11.06
ncm-dbt-02 06:52:31 586416 4000 749 1313 1938 -49.32 ± 5.13 11 764 1004 220 1 -98.82 ± 10.71
ncm-dbt-03 06:53:43 584805 4000 728 1306 1966 -50.56 ± 5.24 13 787 966 233 1 -101.08 ± 10.95
ncm-dbt-04 06:53:05 568412 4000 708 1321 1971 -53.67 ± 5.16 7 816 961 215 1 -108.88 ± 10.97
ncm-dbt-05 06:52:50 579736 4000 726 1330 1944 -52.87 ± 5.24 13 807 951 229 0 -105.82 ± 11.04
20000 3627 6586 9787 -51.78 ± 2.33 57 3982 4829 1127 5 -104.0 ± 4.89

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
435786 ncm-dbt-04 567997 500 90 168 242 -54.64 ± 14.76 2 101 120 27 0 -109.07 ± 31.14
435785 ncm-dbt-01 581777 500 100 158 242 -40.48 ± 14.39 0 90 128 32 0 -82.1 ± 30.08
435784 ncm-dbt-03 584076 500 82 164 254 -57.5 ± 14.36 2 101 124 23 0 -115.23 ± 30.51
435783 ncm-dbt-05 578630 500 93 182 225 -62.51 ± 14.85 3 107 116 24 0 -124.6 ± 31.69
435782 ncm-dbt-02 588941 500 91 162 247 -49.67 ± 14.38 2 93 129 26 0 -98.44 ± 29.86
435781 ncm-dbt-04 568912 500 78 163 259 -59.64 ± 14.59 0 111 113 26 0 -123.02 ± 32.15
435780 ncm-dbt-03 586181 500 91 174 235 -58.21 ± 14.66 1 107 116 26 0 -118.33 ± 31.7
435779 ncm-dbt-01 583363 500 79 176 245 -68.27 ± 14.26 0 118 111 21 0 -142.26 ± 32.42
435778 ncm-dbt-02 585885 500 88 171 241 -58.21 ± 14.53 2 103 121 24 0 -116.78 ± 30.96
435777 ncm-dbt-05 578054 500 87 166 247 -55.36 ± 14.79 1 105 116 28 0 -112.14 ± 31.71
435776 ncm-dbt-04 568713 500 84 162 254 -54.64 ± 15.28 2 105 112 31 0 -109.07 ± 32.29
435775 ncm-dbt-01 584034 500 87 162 251 -52.51 ± 15.56 2 104 112 31 1 -106.01 ± 32.28
435774 ncm-dbt-03 583154 500 97 169 234 -50.38 ± 14.94 2 98 120 30 0 -99.95 ± 31.16
435773 ncm-dbt-02 585421 500 103 165 232 -43.31 ± 14.42 0 92 129 28 1 -89.48 ± 29.91
435772 ncm-dbt-05 577930 500 84 151 265 -46.84 ± 15.27 3 94 120 33 0 -90.97 ± 31.17
435771 ncm-dbt-04 568037 500 88 184 228 -67.54 ± 14.23 3 108 121 18 0 -135.76 ± 30.83
435770 ncm-dbt-01 580987 500 91 170 239 -55.36 ± 15.44 3 104 112 31 0 -109.07 ± 32.29
435769 ncm-dbt-05 585885 500 100 166 234 -46.13 ± 14.58 1 94 125 30 0 -92.46 ± 30.47
435768 ncm-dbt-03 584874 500 89 160 251 -49.67 ± 14.64 1 97 125 26 1 -101.46 ± 30.43
435767 ncm-dbt-02 585759 500 100 153 247 -36.97 ± 14.57 0 88 127 35 0 -74.79 ± 30.24
435766 ncm-dbt-04 569509 500 96 159 245 -44.01 ± 14.73 0 95 124 30 1 -90.97 ± 30.61
435765 ncm-dbt-01 583070 500 92 169 239 -53.93 ± 15.12 4 96 124 25 1 -106.01 ± 30.56
435764 ncm-dbt-03 585843 500 91 172 237 -56.78 ± 14.46 1 104 120 25 0 -115.23 ± 31.11
435763 ncm-dbt-05 579785 500 92 172 236 -56.07 ± 15.47 1 111 105 33 0 -113.68 ± 33.29
435762 ncm-dbt-02 585337 500 95 166 239 -49.67 ± 14.64 2 95 125 28 0 -98.44 ± 30.45
435761 ncm-dbt-04 566651 500 86 160 254 -51.8 ± 13.94 0 98 128 24 0 -106.01 ± 29.96
435760 ncm-dbt-01 581985 500 97 159 244 -43.3 ± 14.29 0 92 128 30 0 -88.0 ± 30.06
435759 ncm-dbt-03 584832 500 86 146 268 -41.89 ± 15.37 2 93 118 37 0 -82.1 ± 31.44
435758 ncm-dbt-05 576210 500 89 159 252 -48.96 ± 14.47 2 93 128 27 0 -96.94 ± 30.02
435757 ncm-dbt-02 588260 500 92 154 254 -43.3 ± 14.69 2 89 128 31 0 -85.04 ± 30.07
435756 ncm-dbt-04 566888 500 88 168 244 -56.07 ± 14.7 0 108 114 28 0 -115.23 ± 32.0
435755 ncm-dbt-01 584916 500 93 155 252 -43.3 ± 15.2 2 93 120 35 0 -85.04 ± 31.17
435754 ncm-dbt-03 581735 500 98 157 245 -41.19 ± 15.46 0 99 111 40 0 -83.57 ± 32.37
435753 ncm-dbt-05 581402 500 90 175 235 -59.64 ± 14.18 1 105 122 22 0 -121.46 ± 30.78
435752 ncm-dbt-02 585000 500 88 168 244 -56.07 ± 14.29 1 102 123 24 0 -113.68 ± 30.67
435751 ncm-dbt-04 570589 500 98 157 245 -41.19 ± 14.3 0 90 129 31 0 -83.57 ± 29.93
435750 ncm-dbt-03 587749 500 94 164 242 -48.96 ± 14.61 4 88 132 26 0 -93.95 ± 29.45
435749 ncm-dbt-05 579992 500 91 159 250 -47.54 ± 14.92 1 98 119 32 0 -95.44 ± 31.3
435748 ncm-dbt-01 583824 500 77 167 256 -63.23 ± 14.88 2 111 112 25 0 -127.76 ± 32.29
435747 ncm-dbt-02 586731 500 92 174 234 -57.5 ± 14.49 2 102 122 24 0 -115.23 ± 30.81

Commit

Commit ID 385deefd807b512a1c404f5cc4c2045f265a800d
Author mstembera
Date 2021-10-25 10:26:44 UTC
Fix sometimes incorrect key for prefetches STC https://tests.stockfishchess.org/tests/view/61737b4f6ce927be32558401 LLR: 2.95 (-2.94,2.94) <-2.50,0.50> Total: 138712 W: 34914 L: 34942 D: 68856 Ptnml(0-2): 421, 14817, 38894, 14817, 407 Very minor tweak since Position::key() depends on the 50 move rule counter. Comments: https://github.com/mstembera/Stockfish/commit/cddde31eed505cdf0c4fc8ff96b89f6e39c797e1 closes https://github.com/official-stockfish/Stockfish/pull/3759 No functional change
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