Dev Builds » 20180809-1245

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 06:31:15 583464 4000 33 2931 1036 -318.62 ± 8.55 935 1028 37 0 0 -811.92 ± 57.98
ncm-dbt-02 06:30:55 586702 4000 36 2939 1025 -319.53 ± 8.71 948 1007 45 0 0 -777.57 ± 52.22
ncm-dbt-03 06:31:07 586372 3992 43 2896 1053 -311.54 ± 8.54 912 1029 55 0 0 -741.91 ± 46.97
ncm-dbt-04 06:32:42 568699 4028 32 2948 1048 -318.2 ± 8.57 944 1028 42 0 0 -790.91 ± 54.18
ncm-dbt-05 06:32:22 583362 3980 24 2865 1091 -310.93 ± 8.18 881 1080 28 1 0 -847.79 ± 67.35
20000 168 14579 5253 -315.75 ± 3.8 4620 5172 207 1 0 -790.53 ± 23.81

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
472004 ncm-dbt-04 566967 28 0 22 6 -368.08 ± 134.69 8 6 0 0 0 -1199.83 ± 141.11
472003 ncm-dbt-05 585042 480 6 340 134 -298.5 ± 23.94 102 131 6 1 0 -708.34 ± 177.11
472002 ncm-dbt-03 586858 492 2 352 138 -309.2 ± 23.54 109 132 5 0 0 -795.35 ± 231.41
472001 ncm-dbt-01 586435 500 5 370 125 -322.66 ± 24.87 120 125 5 0 0 -798.18 ± 231.48
472000 ncm-dbt-02 584958 500 2 362 136 -315.34 ± 23.69 114 132 4 0 0 -837.28 ± 240.94
471999 ncm-dbt-04 565548 500 2 375 123 -334.87 ± 26.28 128 117 5 0 0 -798.18 ± 231.48
471998 ncm-dbt-05 580655 500 4 361 135 -311.05 ± 23.2 111 135 4 0 0 -837.28 ± 240.94
471997 ncm-dbt-01 583196 500 1 371 128 -330.22 ± 24.64 122 126 2 0 0 -958.31 ± 196.57
471996 ncm-dbt-03 585464 500 0 364 136 -321.18 ± 23.28 115 134 1 0 0 -1078.89 ± 154.95
471995 ncm-dbt-02 587452 500 6 374 120 -327.17 ± 25.74 124 120 6 0 0 -766.17 ± 188.02
471994 ncm-dbt-04 571230 500 6 354 140 -298.61 ± 23.35 107 134 9 0 0 -694.7 ± 134.18
471993 ncm-dbt-05 584874 500 3 374 123 -331.76 ± 25.19 124 123 3 0 0 -887.58 ± 222.18
471992 ncm-dbt-01 586097 500 2 356 142 -306.83 ± 22.39 107 140 3 0 0 -887.58 ± 222.18
471991 ncm-dbt-03 585717 500 6 361 133 -308.23 ± 24.18 113 129 8 0 0 -715.51 ± 146.53
471990 ncm-dbt-02 588899 500 8 362 130 -306.83 ± 24.64 114 126 10 0 0 -676.04 ± 124.55
471989 ncm-dbt-04 569709 500 2 377 121 -338.03 ± 25.89 128 119 3 0 0 -887.58 ± 222.18
471988 ncm-dbt-05 582027 500 2 364 134 -318.24 ± 23.31 114 134 2 0 0 -958.31 ± 196.57
471987 ncm-dbt-03 585801 500 7 356 137 -299.96 ± 23.52 108 133 9 0 0 -694.7 ± 134.18
471986 ncm-dbt-01 581652 500 4 363 133 -313.9 ± 23.86 114 131 5 0 0 -798.18 ± 231.48
471985 ncm-dbt-02 585885 500 5 372 123 -325.66 ± 25.56 123 121 6 0 0 -766.17 ± 188.02
471984 ncm-dbt-04 569310 500 7 374 119 -325.66 ± 25.91 124 119 7 0 0 -739.05 ± 163.27
471983 ncm-dbt-03 586646 500 10 377 113 -325.66 ± 27.25 128 111 11 0 0 -659.13 ± 116.77
471982 ncm-dbt-05 581818 500 1 372 127 -331.76 ± 24.81 123 125 2 0 0 -958.31 ± 196.57
471981 ncm-dbt-02 588472 500 2 379 119 -341.23 ± 25.87 129 119 2 0 0 -958.31 ± 196.57
471980 ncm-dbt-01 584076 500 1 364 135 -319.71 ± 23.48 115 133 2 0 0 -958.31 ± 196.57
471979 ncm-dbt-04 567918 500 5 351 144 -295.93 ± 22.12 102 142 6 0 0 -766.17 ± 188.02
471978 ncm-dbt-03 585843 500 8 368 124 -315.34 ± 25.02 118 124 8 0 0 -715.51 ± 146.53
471977 ncm-dbt-05 582652 500 4 348 148 -293.28 ± 21.5 99 146 5 0 0 -798.18 ± 231.48
471976 ncm-dbt-01 581985 500 5 370 125 -322.66 ± 24.87 120 125 5 0 0 -798.18 ± 231.48
471975 ncm-dbt-02 586562 500 4 369 127 -322.66 ± 24.87 120 125 5 0 0 -798.18 ± 231.48
471974 ncm-dbt-04 569071 500 4 363 133 -313.9 ± 23.52 113 133 4 0 0 -837.28 ± 240.94
471973 ncm-dbt-03 586689 500 7 354 139 -297.27 ± 22.89 105 137 8 0 0 -715.51 ± 146.53
471972 ncm-dbt-05 585421 500 4 357 139 -305.44 ± 22.89 108 137 5 0 0 -798.18 ± 231.48
471971 ncm-dbt-01 583950 500 8 363 129 -308.23 ± 24.18 113 129 8 0 0 -715.51 ± 146.53
471970 ncm-dbt-02 584916 500 3 360 137 -311.05 ± 23.2 111 135 4 0 0 -837.28 ± 240.94
471969 ncm-dbt-04 569709 500 2 360 138 -312.47 ± 23.02 111 136 3 0 0 -887.58 ± 222.18
471968 ncm-dbt-03 587962 500 3 364 133 -316.79 ± 24.19 116 129 5 0 0 -798.18 ± 231.48
471967 ncm-dbt-01 580323 500 7 374 119 -325.66 ± 25.91 124 119 7 0 0 -739.05 ± 163.27
471966 ncm-dbt-02 586477 500 6 361 133 -308.23 ± 24.18 113 129 8 0 0 -715.51 ± 146.53
471965 ncm-dbt-05 584411 500 0 349 151 -299.96 ± 20.94 100 149 1 0 0 -1078.89 ± 154.95
471964 ncm-dbt-04 568832 500 4 372 124 -327.17 ± 25.39 123 122 5 0 0 -798.18 ± 231.48

Commit

Commit ID 198418ee67895817f2fad63f4935540e17cd7117
Author Stefan Geschwentner
Date 2018-08-09 12:45:35 UTC
LMR simplification Unify the "quiet" and "non-quiet" reduction rules for use at any kind of moves. The idea behind it was that both rules reduce at similiar cases in master: one directly for late previous moves and the other indirectly by using a bad stat score which is used for most move sorting and so approximates the late move condition. For captures/promotions the old rule was triggered in 25% but the new rule only for 3% of all cases (so now more reductions are done, whereas for quiet moves reductions keep the same level). STC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 162327 W: 35976 L: 36134 D: 90217 http://tests.stockfishchess.org/tests/view/5b6a9a430ebc5902bdb9d5c1 LTC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 29570 W: 5083 L: 4976 D: 19511 http://tests.stockfishchess.org/tests/view/5b6bc5d00ebc5902bdb9e9d6 Bench: 4526980
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