Dev Builds » 20211203-0754

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 06:51:19 583985 4000 829 1224 1947 -34.42 ± 5.32 11 681 1001 306 1 -67.73 ± 10.76
ncm-dbt-02 06:52:00 585887 4000 842 1202 1956 -31.35 ± 5.3 13 650 1022 314 1 -61.08 ± 10.64
ncm-dbt-03 06:50:10 587115 4000 836 1213 1951 -32.84 ± 5.28 18 640 1045 295 2 -63.41 ± 10.5
ncm-dbt-04 06:51:42 570549 4006 786 1227 1993 -38.4 ± 5.4 21 696 991 293 2 -74.31 ± 10.81
ncm-dbt-05 06:52:16 584973 3994 815 1198 1981 -33.42 ± 5.33 17 652 1029 295 4 -65.12 ± 10.59
20000 4108 6064 9828 -34.09 ± 2.38 80 3319 5088 1503 10 -66.32 ± 4.77

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
399820 ncm-dbt-04 570829 6 3 3 0 0.0 ± 11.34 0 0 3 0 0 -0.0 ± 10.15
399819 ncm-dbt-01 581693 500 111 155 234 -30.65 ± 15.31 2 82 124 42 0 -58.93 ± 30.66
399818 ncm-dbt-05 583070 494 107 150 237 -30.32 ± 14.81 0 82 126 39 0 -61.11 ± 30.38
399817 ncm-dbt-02 586943 500 110 146 244 -25.06 ± 14.68 1 75 133 41 0 -48.96 ± 29.49
399816 ncm-dbt-03 587877 500 116 153 231 -25.76 ± 14.73 1 76 132 41 0 -50.38 ± 29.62
399815 ncm-dbt-04 568554 500 89 159 252 -48.96 ± 15.25 1 101 116 31 1 -99.95 ± 31.72
399814 ncm-dbt-02 583698 500 115 145 240 -20.87 ± 15.01 2 71 132 45 0 -39.08 ± 29.64
399813 ncm-dbt-01 582193 500 101 146 253 -31.35 ± 15.36 2 83 123 42 0 -60.36 ± 30.78
399812 ncm-dbt-05 586858 500 111 136 253 -17.39 ± 14.49 0 69 138 42 1 -36.26 ± 28.86
399811 ncm-dbt-03 586181 500 110 141 249 -21.57 ± 14.42 2 67 141 40 0 -40.48 ± 28.44
399810 ncm-dbt-04 569430 500 105 156 239 -35.56 ± 15.5 2 87 122 38 1 -70.44 ± 30.91
399809 ncm-dbt-02 585759 500 103 154 243 -35.56 ± 14.61 1 84 130 35 0 -70.44 ± 29.84
399808 ncm-dbt-01 584076 500 116 159 225 -29.95 ± 14.63 0 82 129 39 0 -60.36 ± 30.0
399807 ncm-dbt-04 572034 500 108 155 237 -32.75 ± 15.32 4 78 129 39 0 -60.36 ± 30.0
399806 ncm-dbt-03 584285 500 88 158 254 -48.96 ± 15.38 2 99 117 31 1 -98.44 ± 31.58
399805 ncm-dbt-05 585590 500 84 156 260 -50.38 ± 15.33 7 86 129 28 0 -92.46 ± 29.89
399804 ncm-dbt-02 586097 500 105 161 234 -39.08 ± 15.95 4 89 116 41 0 -73.34 ± 31.7
399803 ncm-dbt-01 581860 500 98 155 247 -39.78 ± 15.38 1 94 116 39 0 -79.17 ± 31.71
399802 ncm-dbt-04 569709 500 94 161 245 -46.84 ± 15.14 4 90 125 31 0 -89.48 ± 30.48
399801 ncm-dbt-03 586731 500 109 159 232 -34.86 ± 14.95 4 77 134 35 0 -64.66 ± 29.31
399800 ncm-dbt-05 587707 500 99 159 242 -41.89 ± 14.99 4 84 130 32 0 -79.17 ± 29.81
399799 ncm-dbt-04 567561 500 104 145 251 -28.55 ± 15.42 3 78 126 43 0 -53.22 ± 30.4
399798 ncm-dbt-02 585379 500 110 148 242 -26.45 ± 14.9 2 75 132 41 0 -50.38 ± 29.62
399797 ncm-dbt-03 587707 500 109 155 236 -32.05 ± 14.38 1 78 138 32 1 -64.66 ± 28.76
399796 ncm-dbt-01 585084 500 102 150 248 -33.46 ± 15.49 2 85 123 39 1 -66.1 ± 30.78
399795 ncm-dbt-05 582068 500 96 147 257 -35.56 ± 14.35 1 81 137 30 1 -71.89 ± 28.86
399794 ncm-dbt-04 572800 500 97 149 254 -36.26 ± 14.91 2 84 128 36 0 -70.44 ± 30.11
399793 ncm-dbt-02 586393 500 95 144 261 -34.16 ± 14.52 1 82 132 35 0 -67.55 ± 29.58
399792 ncm-dbt-05 586901 500 99 149 252 -34.86 ± 15.7 2 88 119 40 1 -68.99 ± 31.3
399791 ncm-dbt-01 585379 500 99 157 244 -40.48 ± 14.52 1 88 129 32 0 -80.63 ± 29.95
399790 ncm-dbt-03 588686 500 103 139 258 -25.06 ± 15.67 4 74 126 46 0 -44.72 ± 30.4
399789 ncm-dbt-04 572316 500 91 145 264 -37.67 ± 15.13 2 87 124 37 0 -73.34 ± 30.64
399788 ncm-dbt-03 588430 500 104 154 242 -34.86 ± 13.76 1 77 143 29 0 -68.99 ± 28.02
399787 ncm-dbt-02 587240 500 107 164 229 -39.78 ± 14.87 1 90 124 35 0 -79.17 ± 30.64
399786 ncm-dbt-05 580987 500 103 157 240 -37.67 ± 15.13 2 86 127 34 1 -74.79 ± 30.24
399785 ncm-dbt-01 585717 500 98 142 260 -30.65 ± 14.81 0 84 126 40 0 -61.79 ± 30.39
399784 ncm-dbt-03 587028 500 97 154 249 -39.78 ± 15.87 3 92 114 41 0 -76.25 ± 31.96
399783 ncm-dbt-04 571712 500 95 154 251 -41.19 ± 15.58 3 91 118 38 0 -79.17 ± 31.44
399782 ncm-dbt-01 585885 500 104 160 236 -39.08 ± 14.83 3 83 131 33 0 -74.79 ± 29.69
399781 ncm-dbt-05 586604 500 116 144 240 -19.48 ± 15.4 1 76 123 50 0 -37.67 ± 30.78
399780 ncm-dbt-02 585590 500 97 140 263 -29.95 ± 15.39 1 84 123 41 1 -60.36 ± 30.78

Commit

Commit ID e4b7403f127a36a35bbace9f833ab43babd98a6c
Author Michael Chaly
Date 2021-12-03 07:54:46 UTC
Do more aggressive pruning for some node types This patch allows more aggressive futility/see based pruning for PV nodes with low delta and non-pv nodes. Fixes some white space issues. Passed STC https://tests.stockfishchess.org/tests/view/61a5ed33d16c530b5dcc27cc LLR: 2.95 (-2.94,2.94) <0.00,2.50> Total: 182088 W: 47121 L: 46584 D: 88383 Ptnml(0-2): 551, 20687, 48037, 21212, 557 Passed LTC https://tests.stockfishchess.org/tests/view/61a74dfdbd5c4360bcded0ac LLR: 2.94 (-2.94,2.94) <0.50,3.00> Total: 87136 W: 22494 L: 22103 D: 42539 Ptnml(0-2): 38, 8918, 25272, 9295, 45 closes https://github.com/official-stockfish/Stockfish/pull/3828 closes https://github.com/official-stockfish/Stockfish/pull/3829 bench 4332259
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