Dev Builds » 20211009-0759

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 11:54:30 1228223 3978 1220 717 2041 +44.17 +/- 5.42 3 259 989 708 30 +84.79 +/- 10.81
ncm-dbt-02 11:49:10 1227075 3940 1253 720 1967 +47.29 +/- 5.43 2 256 939 753 20 +92.99 +/- 11.11
ncm-dbt-03 11:55:12 1269501 4006 1235 725 2046 +44.47 +/- 5.39 4 261 983 731 24 +86.75 +/- 10.85
ncm-dbt-04 00:31:11 1488656 168 44 29 95 +31.1 +/- 29.05 1 15 37 30 1 +62.71 +/- 56.28
ncm-dbt-05 11:48:28 1262477 3934 1234 671 2029 +50.07 +/- 5.35 2 236 941 773 15 +99.81 +/- 11.1
ncm-dbt-06 11:55:14 1259677 3974 1273 693 2008 +51.07 +/- 5.34 2 228 970 762 25 +100.07 +/- 10.92
20000 6259 3555 10186 +47.26 +/- 2.4 14 1255 4859 3757 115 +92.57 +/- 4.88

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
209006 ncm-dbt-05 1223988 272 91 42 139 +63.28 +/- 18.92 0 10 68 57 1 +128.13 +/- 41.13
209005 ncm-dbt-02 1197782 274 98 48 128 +64.12 +/- 20.87 0 15 59 61 2 +127.11 +/- 44.65
209004 ncm-dbt-06 1227231 306 99 58 149 +46.83 +/- 19.52 1 18 74 59 1 +95.43 +/- 39.75
209003 ncm-dbt-01 1213186 312 91 52 169 +43.66 +/- 19.76 1 20 76 57 2 +86.37 +/- 39.23
209002 ncm-dbt-03 1251791 336 103 65 168 +39.46 +/- 19.65 1 25 80 59 3 +75.62 +/- 38.24
209001 ncm-dbt-05 1224353 500 157 85 258 +50.38 +/- 15.45 1 31 115 101 2 +101.46 +/- 31.86
209000 ncm-dbt-02 1194135 500 157 92 251 +45.42 +/- 14.94 1 31 120 98 0 +93.95 +/- 31.17
208999 ncm-dbt-06 1258035 500 154 86 260 +47.54 +/- 15.18 0 33 118 97 2 +93.95 +/- 31.44
208998 ncm-dbt-01 1198459 500 147 87 266 +41.89 +/- 15.37 0 36 121 90 3 +80.63 +/- 31.04
208997 ncm-dbt-03 1246360 500 159 97 244 +43.3 +/- 15.33 1 32 124 90 3 +85.04 +/- 30.63
208996 ncm-dbt-05 1246654 500 168 92 240 +53.22 +/- 14.95 0 29 118 101 2 +106.01 +/- 31.43
208995 ncm-dbt-02 1195596 500 160 90 250 +48.96 +/- 15.13 0 29 127 89 5 +92.46 +/- 30.18
208994 ncm-dbt-01 1210590 500 150 96 254 +37.67 +/- 15.38 0 38 123 86 3 +71.89 +/- 30.78
208993 ncm-dbt-06 1223159 500 160 90 250 +48.96 +/- 15.0 0 29 126 91 4 +93.95 +/- 30.32
208992 ncm-dbt-03 1236355 500 148 93 259 +38.37 +/- 16.02 2 38 115 93 2 +77.71 +/- 31.83
208991 ncm-dbt-05 1244146 500 143 75 282 +47.54 +/- 14.92 0 32 119 98 1 +95.44 +/- 31.3
208990 ncm-dbt-02 1190412 500 151 84 265 +46.84 +/- 15.27 0 36 111 103 0 +95.44 +/- 32.4
208989 ncm-dbt-01 1174240 500 160 81 259 +55.36 +/- 15.69 0 30 117 97 6 +104.49 +/- 31.58
208988 ncm-dbt-06 1231664 500 159 93 248 +46.13 +/- 15.36 0 34 119 94 3 +89.48 +/- 31.31
208987 ncm-dbt-03 1241716 500 163 95 242 +47.54 +/- 15.31 0 30 128 86 6 +88.0 +/- 30.06
208986 ncm-dbt-05 1240442 500 154 84 262 +48.96 +/- 14.07 0 24 134 90 2 +96.94 +/- 29.13
208985 ncm-dbt-02 1190373 500 148 97 255 +35.56 +/- 16.33 0 46 111 89 4 +66.1 +/- 32.32
208984 ncm-dbt-01 1182201 500 155 93 252 +43.3 +/- 14.95 0 32 127 88 3 +83.57 +/- 30.21
208983 ncm-dbt-06 1224099 500 169 95 236 +51.8 +/- 15.77 0 34 112 100 4 +99.95 +/- 32.27
208982 ncm-dbt-03 1222369 500 135 89 276 +32.05 +/- 14.77 0 38 129 82 1 +63.23 +/- 29.99
208981 ncm-dbt-05 1222459 500 154 88 258 +46.13 +/- 15.48 0 36 114 98 2 +90.97 +/- 31.99
208980 ncm-dbt-02 1194738 500 162 96 242 +46.13 +/- 15.85 0 36 117 92 5 +86.52 +/- 31.58
208979 ncm-dbt-01 1220848 500 154 91 255 +44.01 +/- 15.86 1 36 115 95 3 +86.52 +/- 31.85
208978 ncm-dbt-03 1227742 500 162 90 248 +50.38 +/- 15.07 0 30 121 96 3 +98.44 +/- 31.02
208977 ncm-dbt-06 1243699 500 168 82 250 +60.36 +/- 14.62 0 20 130 94 6 +115.23 +/- 29.58
208976 ncm-dbt-05 1228476 500 158 86 256 +50.38 +/- 15.7 1 32 114 100 3 +99.95 +/- 32.0
208975 ncm-dbt-02 1189678 500 163 94 243 +48.25 +/- 14.16 1 23 133 92 1 +98.44 +/- 29.27
208974 ncm-dbt-01 1174879 500 160 92 248 +47.54 +/- 14.66 0 27 132 87 4 +90.97 +/- 29.47
208973 ncm-dbt-03 1264046 500 148 86 266 +43.3 +/- 14.56 0 30 130 88 2 +85.04 +/- 29.79
208972 ncm-dbt-06 1226977 500 157 85 258 +50.38 +/- 14.68 1 24 130 92 3 +99.95 +/- 29.7
208971 ncm-dbt-05 1231955 500 159 85 256 +51.8 +/- 15.27 0 32 114 102 2 +102.97 +/- 32.0
208970 ncm-dbt-02 1202212 500 159 90 251 +48.25 +/- 14.7 0 30 122 97 1 +96.94 +/- 30.88
208969 ncm-dbt-03 1235471 500 154 84 262 +48.96 +/- 15.0 0 32 117 100 1 +98.44 +/- 31.58
208968 ncm-dbt-01 1183221 500 156 91 253 +45.42 +/- 14.94 1 26 135 83 5 +86.52 +/- 29.06
208967 ncm-dbt-06 1209894 500 155 79 266 +53.22 +/- 14.69 0 27 122 99 2 +106.01 +/- 30.85
177883 ncm-dbt-02 1488751 166 55 29 82 +54.86 +/- 27.27 0 10 39 32 2 +103.41 +/- 55.07
177882 ncm-dbt-05 1499822 162 50 34 78 +34.43 +/- 24.37 0 10 45 26 0 +69.54 +/- 50.53
177881 ncm-dbt-03 1499666 170 63 26 81 +76.84 +/- 26.28 0 6 39 37 3 +147.19 +/- 54.96
177880 ncm-dbt-04 1488656 168 44 29 95 +31.1 +/- 29.05 1 15 37 30 1 +62.71 +/- 56.28
177879 ncm-dbt-01 1496387 166 47 34 85 +27.26 +/- 26.47 0 14 43 25 1 +50.59 +/- 52.25
177878 ncm-dbt-06 1492335 168 52 25 91 +56.32 +/- 25.13 0 9 39 36 0 +115.78 +/- 55.09

Commit

Commit ID c8459b18ba2d6ddc76d6db90d6eab346ed682e69
Author Michael Chaly
Date 2021-10-09 07:59:33 UTC
Reduce more if multiple moves exceed alpha Idea of this patch is the following: in case we already have four moves that exceeded alpha in the current node, the probability of finding fifth should be reasonably low. Note that four is completely arbitrary - there could and probably should be some tweaks, both in tweaking best move count threshold for more reductions and tweaking how they work - for example making more reductions with best move count linearly. passed STC: https://tests.stockfishchess.org/tests/view/615f614783dd501a05b0aee2 LLR: 2.94 (-2.94,2.94) <-0.50,2.50> Total: 141816 W: 36056 L: 35686 D: 70074 Ptnml(0-2): 499, 15131, 39273, 15511, 494 passed LTC: https://tests.stockfishchess.org/tests/view/615fdff683dd501a05b0af35 LLR: 2.94 (-2.94,2.94) <0.50,3.50> Total: 68536 W: 17221 L: 16891 D: 34424 Ptnml(0-2): 38, 6573, 20725, 6885, 47 closes https://github.com/official-stockfish/Stockfish/pull/3736 Bench: 6131513
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