Dev Builds » 20211219-0703

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 09:25:33 1198063 3206 1107 495 1604 +67.15 +/- 5.92 2 148 706 730 17 +135.93 +/- 12.82
ncm-dbt-02 10:01:43 1321032 3332 1146 512 1674 +66.92 +/- 5.83 4 145 754 739 24 +134.37 +/- 12.39
ncm-dbt-03 10:06:12 1327607 3394 1227 547 1620 +70.56 +/- 5.87 1 150 751 758 37 +138.79 +/- 12.42
ncm-dbt-04 10:06:32 1309242 3376 1179 510 1687 +69.77 +/- 5.81 0 151 747 760 30 +138.41 +/- 12.46
ncm-dbt-05 10:02:43 1322650 3358 1181 516 1661 +69.73 +/- 5.81 1 150 736 767 25 +139.72 +/- 12.55
ncm-dbt-06 10:01:14 1319026 3334 1162 494 1678 +70.57 +/- 5.82 1 150 717 778 21 +142.55 +/- 12.72
20000 7002 3074 9924 +69.13 +/- 2.38 9 894 4411 4532 154 +138.31 +/- 5.12

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
187926 ncm-dbt-06 1225074 126 43 21 62 +61.29 +/- 29.75 0 7 27 29 0 +126.65 +/- 66.61
187925 ncm-dbt-02 1248182 136 42 23 71 +48.85 +/- 31.44 0 10 31 25 2 +88.74 +/- 61.9
187924 ncm-dbt-05 1240525 158 56 28 74 +62.22 +/- 26.03 0 7 38 33 1 +123.72 +/- 55.65
187923 ncm-dbt-04 1206738 180 63 27 90 +70.43 +/- 26.67 0 9 39 39 3 +133.61 +/- 55.17
187922 ncm-dbt-03 1232884 194 67 30 97 +67.08 +/- 25.52 0 8 49 35 5 +119.07 +/- 48.62
187921 ncm-dbt-01 1200037 206 78 20 108 +100.53 +/- 21.98 0 4 39 58 2 +211.72 +/- 55.23
187920 ncm-dbt-06 1236155 500 167 84 249 +58.21 +/- 15.57 0 30 111 105 4 +113.68 +/- 32.44
187919 ncm-dbt-02 1238543 500 167 79 254 +61.79 +/- 15.08 0 25 116 105 4 +121.46 +/- 31.7
187918 ncm-dbt-05 1213138 500 186 70 244 +82.1 +/- 15.12 0 17 107 119 7 +162.35 +/- 33.02
187917 ncm-dbt-04 1246253 500 178 87 235 +63.94 +/- 16.43 0 31 105 106 8 +119.89 +/- 33.31
187916 ncm-dbt-03 1231392 500 172 78 250 +66.1 +/- 14.73 0 22 115 110 3 +132.54 +/- 31.82
187915 ncm-dbt-01 1211493 500 168 90 242 +54.64 +/- 14.89 0 29 115 105 1 +110.6 +/- 31.86
187914 ncm-dbt-06 1224404 500 171 71 258 +70.43 +/- 15.68 0 26 103 116 5 +138.99 +/- 33.68
187913 ncm-dbt-02 1238112 500 185 77 238 +76.25 +/- 15.22 0 21 105 119 5 +152.18 +/- 33.38
187912 ncm-dbt-05 1224588 500 171 68 261 +72.61 +/- 15.37 0 24 103 119 4 +145.54 +/- 33.69
187911 ncm-dbt-04 1254082 500 170 70 260 +70.43 +/- 14.2 0 16 122 108 4 +140.62 +/- 30.61
187910 ncm-dbt-03 1231350 500 166 72 262 +66.1 +/- 15.13 0 26 106 116 2 +134.15 +/- 33.21
187909 ncm-dbt-01 1179779 500 173 79 248 +66.1 +/- 14.59 0 21 117 109 3 +132.54 +/- 31.5
187908 ncm-dbt-06 1232826 500 177 70 253 +75.52 +/- 13.94 0 15 115 118 2 +155.54 +/- 31.67
187907 ncm-dbt-02 1251238 500 178 76 246 +71.88 +/- 15.08 0 22 108 116 4 +143.89 +/- 32.9
187906 ncm-dbt-05 1227433 500 182 89 229 +65.38 +/- 14.56 1 19 118 110 2 +134.15 +/- 31.33
187905 ncm-dbt-04 1236301 500 168 74 258 +66.1 +/- 15.26 0 24 113 108 5 +129.35 +/- 32.14
187904 ncm-dbt-03 1213580 500 194 84 222 +77.7 +/- 16.18 0 27 92 125 6 +153.86 +/- 35.47
187903 ncm-dbt-01 1228941 500 173 89 238 +58.93 +/- 14.83 0 26 116 106 2 +118.33 +/- 31.7
187902 ncm-dbt-06 1218371 500 185 69 246 +82.1 +/- 14.98 1 17 100 129 3 +171.02 +/- 34.23
187901 ncm-dbt-02 1234024 500 163 72 265 +63.95 +/- 14.77 1 20 119 107 3 +129.35 +/- 31.2
187900 ncm-dbt-05 1230226 500 180 79 241 +71.16 +/- 15.05 0 22 109 115 4 +142.26 +/- 32.74
187899 ncm-dbt-04 1236801 500 181 82 237 +69.71 +/- 14.45 0 20 113 115 2 +142.26 +/- 32.1
187898 ncm-dbt-03 1227517 500 185 88 227 +68.27 +/- 15.47 0 25 108 112 5 +134.15 +/- 32.9
187897 ncm-dbt-01 1177622 500 179 67 254 +79.17 +/- 15.31 0 21 101 123 5 +158.93 +/- 34.05
187896 ncm-dbt-06 1218766 500 169 69 262 +70.43 +/- 14.2 0 19 113 117 1 +145.54 +/- 32.08
187895 ncm-dbt-05 1226668 500 173 84 243 +62.51 +/- 14.58 0 23 117 108 2 +126.18 +/- 31.53
187894 ncm-dbt-02 1236758 500 171 74 255 +68.27 +/- 15.08 2 19 111 116 2 +142.26 +/- 32.42
187893 ncm-dbt-04 1214528 500 183 67 250 +82.1 +/- 15.12 0 20 98 128 4 +167.53 +/- 34.57
187892 ncm-dbt-01 1198940 500 164 74 262 +63.23 +/- 15.4 2 24 107 116 1 +132.54 +/- 33.05
187891 ncm-dbt-03 1254238 500 181 82 237 +69.71 +/- 14.31 0 15 127 102 6 +135.76 +/- 29.83
187890 ncm-dbt-06 1198565 500 183 77 240 +74.79 +/- 15.57 0 24 101 120 5 +148.85 +/- 34.02
187889 ncm-dbt-05 1228256 500 161 71 268 +63.23 +/- 15.66 0 30 103 114 3 +126.18 +/- 33.63
187888 ncm-dbt-02 1232087 500 177 78 245 +69.71 +/- 14.59 1 18 114 115 2 +143.89 +/- 31.92
187887 ncm-dbt-03 1249170 500 191 85 224 +74.79 +/- 15.57 1 19 110 113 7 +147.19 +/- 32.57
187886 ncm-dbt-01 1189629 500 172 76 252 +67.54 +/- 14.92 0 23 111 113 3 +135.76 +/- 32.43
187885 ncm-dbt-04 1231554 500 166 75 259 +63.94 +/- 14.5 0 21 120 106 3 +127.76 +/- 31.05
174177 ncm-dbt-05 1457071 0 0 0 0 -0.0 +/- 1199.83 0 0 0 0 0 -0.0 +/- 1199.83
174176 ncm-dbt-03 1460640 0 0 0 0 -0.0 +/- 1199.83 0 0 0 0 0 -0.0 +/- 1199.83
174175 ncm-dbt-06 1453814 8 3 3 2 -0.0 +/- 125.78 0 1 2 1 0 -0.0 +/- 296.58
174174 ncm-dbt-04 1444425 46 16 9 21 +53.28 +/- 54.86 0 4 8 11 0 +109.2 +/- 123.4
174173 ncm-dbt-02 1464675 46 18 8 20 +76.73 +/- 48.64 0 1 12 9 1 +143.61 +/- 99.45
174172 ncm-dbt-03 1457220 50 18 7 25 +77.69 +/- 50.32 0 2 11 11 1 +147.19 +/- 107.43
174171 ncm-dbt-05 1449864 50 18 7 25 +77.7 +/- 50.32 0 3 8 14 0 +164.07 +/- 126.09
174170 ncm-dbt-06 1453100 50 12 8 30 +27.85 +/- 54.17 0 6 9 10 0 +56.07 +/- 113.77
174169 ncm-dbt-04 1441683 50 20 6 24 +99.93 +/- 52.02 0 2 8 14 1 +200.24 +/- 129.69
174168 ncm-dbt-02 1462879 50 13 5 32 +56.07 +/- 47.61 0 3 11 11 0 +115.23 +/- 106.91
174167 ncm-dbt-03 1456776 50 21 6 23 +107.52 +/- 47.72 0 1 9 14 1 +219.87 +/- 122.63
174166 ncm-dbt-05 1458408 50 15 4 31 +77.69 +/- 45.93 0 1 13 10 1 +147.19 +/- 95.14
174165 ncm-dbt-06 1458263 50 18 10 22 +56.07 +/- 43.2 0 2 13 10 0 +115.23 +/- 96.38
174161 ncm-dbt-02 1462879 50 19 9 22 +70.41 +/- 40.34 0 0 16 8 1 +130.92 +/- 76.82
174158 ncm-dbt-03 1459598 50 15 8 27 +48.96 +/- 42.0 0 2 14 9 0 +99.95 +/- 91.41
174157 ncm-dbt-04 1446031 50 16 7 27 +63.22 +/- 48.63 0 3 10 12 0 +130.94 +/- 112.59
174156 ncm-dbt-05 1458263 50 17 10 23 +48.96 +/- 50.55 0 4 10 11 0 +99.95 +/- 111.26
174155 ncm-dbt-06 1455590 50 17 4 29 +92.44 +/- 47.1 0 1 11 12 1 +181.7 +/- 107.11
174153 ncm-dbt-04 1443268 50 18 6 26 +85.04 +/- 41.74 0 1 11 13 0 +181.7 +/- 107.11
174152 ncm-dbt-03 1456927 50 17 7 26 +70.42 +/- 53.56 0 3 10 11 1 +130.94 +/- 112.59
174151 ncm-dbt-02 1461984 50 13 11 26 +13.9 +/- 51.13 0 6 11 8 0 +27.85 +/- 105.14
174150 ncm-dbt-06 1453390 50 17 8 25 +63.22 +/- 44.25 0 2 12 11 0 +130.94 +/- 101.68
174149 ncm-dbt-05 1457370 50 22 6 22 +115.19 +/- 42.56 0 0 10 14 1 +240.79 +/- 111.83

Commit

Commit ID fb7d3ab32ebd7a6514bded459b4aa442276f6cda
Author Michael Chaly
Date 2021-12-19 07:03:41 UTC
Reintroduce futility pruning for captures This is a reintroduction of an idea that was simplified away approximately 1 year ago. There are some tweaks to it : a) exclude promotions; b) exclude Pv Nodes from it - Pv Nodes logic for captures is really different from non Pv nodes so it makes a lot of sense; c) use a big grain of capture history - idea is taken from my recent patches in futility pruning. passed STC https://tests.stockfishchess.org/tests/view/61bd90f857a0d0f327c373b7 LLR: 2.96 (-2.94,2.94) <0.00,2.50> Total: 86640 W: 22474 L: 22110 D: 42056 Ptnml(0-2): 268, 9732, 22963, 10082, 275 passed LTC https://tests.stockfishchess.org/tests/view/61be094457a0d0f327c38aa3 LLR: 2.95 (-2.94,2.94) <0.50,3.00> Total: 23240 W: 6079 L: 5838 D: 11323 Ptnml(0-2): 14, 2261, 6824, 2512, 9 https://github.com/official-stockfish/Stockfish/pull/3864 bench 4493723
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