Dev Builds » 20211003-0928

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 11:54:08 1234406 3980 1263 727 1990 +47.08 +/- 5.26 2 232 1006 728 22 +92.19 +/- 10.7
ncm-dbt-02 11:49:01 1230607 3938 1232 720 1986 +45.43 +/- 5.33 5 242 971 738 13 +90.95 +/- 10.91
ncm-dbt-03 11:54:40 1266864 3988 1269 698 2021 +50.09 +/- 5.29 3 236 954 789 12 +100.65 +/- 11.02
ncm-dbt-04 00:30:51 1476063 168 57 29 82 +58.45 +/- 27.93 0 11 36 35 2 +111.19 +/- 57.33
ncm-dbt-05 11:50:06 1255321 3934 1233 717 1984 +45.84 +/- 5.41 2 257 949 741 18 +90.3 +/- 11.05
ncm-dbt-06 11:54:27 1266085 3992 1225 709 2058 +45.16 +/- 5.18 0 235 1030 711 20 +88.18 +/- 10.56
20000 6279 3600 10121 +46.82 +/- 2.36 12 1213 4946 3742 87 +92.6 +/- 4.83

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
209086 ncm-dbt-05 1229300 264 80 51 133 +38.32 +/- 20.35 0 19 65 48 0 +77.6 +/- 42.45
209085 ncm-dbt-02 1188250 274 85 41 148 +56.28 +/- 20.41 0 16 62 58 1 +112.86 +/- 43.53
209084 ncm-dbt-06 1227813 320 108 63 149 +49.18 +/- 18.23 0 17 83 58 2 +95.72 +/- 37.28
209083 ncm-dbt-01 1214538 322 104 63 155 +44.48 +/- 19.07 0 21 81 56 3 +83.58 +/- 37.92
209082 ncm-dbt-03 1250982 320 111 56 153 +60.31 +/- 18.64 0 17 72 70 1 +122.04 +/- 40.36
209081 ncm-dbt-05 1214026 500 165 97 238 +47.54 +/- 15.56 0 35 115 97 3 +92.46 +/- 31.85
209080 ncm-dbt-02 1200402 500 156 86 258 +48.96 +/- 13.93 0 24 133 92 1 +98.44 +/- 29.27
209079 ncm-dbt-03 1244474 500 162 89 249 +51.09 +/- 15.23 0 33 112 104 1 +102.97 +/- 32.28
209078 ncm-dbt-01 1194364 500 155 102 243 +36.97 +/- 14.44 0 32 135 81 2 +71.89 +/- 29.14
209077 ncm-dbt-06 1232489 500 156 90 254 +46.13 +/- 14.72 0 29 129 89 3 +89.48 +/- 29.91
209076 ncm-dbt-05 1218919 500 145 79 276 +46.13 +/- 14.72 0 31 123 95 1 +92.46 +/- 30.75
209075 ncm-dbt-02 1198837 500 149 101 250 +33.46 +/- 14.74 0 37 129 83 1 +66.1 +/- 29.99
209074 ncm-dbt-06 1240274 500 161 72 267 +62.51 +/- 15.5 0 27 112 106 5 +121.46 +/- 32.29
209073 ncm-dbt-03 1239008 500 155 81 264 +51.8 +/- 15.65 0 36 105 108 1 +104.49 +/- 33.24
209072 ncm-dbt-01 1198291 500 167 81 252 +60.36 +/- 15.67 0 30 108 108 4 +118.33 +/- 32.88
209071 ncm-dbt-05 1208973 500 152 96 252 +39.08 +/- 15.21 1 36 119 94 0 +80.63 +/- 31.31
209070 ncm-dbt-02 1201737 500 152 91 257 +42.6 +/- 15.41 1 35 117 96 1 +86.52 +/- 31.58
209069 ncm-dbt-03 1230010 500 155 87 258 +47.54 +/- 15.31 0 34 116 98 2 +93.95 +/- 31.72
209068 ncm-dbt-06 1244915 500 159 90 251 +48.25 +/- 14.96 0 31 121 96 2 +95.44 +/- 31.02
209067 ncm-dbt-01 1198880 500 164 91 245 +51.09 +/- 14.31 0 26 126 97 1 +102.97 +/- 30.28
209066 ncm-dbt-05 1236714 500 158 92 250 +46.13 +/- 15.1 1 27 132 85 5 +88.0 +/- 29.49
209065 ncm-dbt-02 1194508 500 157 94 249 +44.01 +/- 15.74 2 33 117 96 2 +89.48 +/- 31.58
209064 ncm-dbt-03 1239312 500 159 88 253 +49.67 +/- 15.03 1 28 122 97 2 +99.95 +/- 30.87
209063 ncm-dbt-06 1240655 500 151 104 245 +32.75 +/- 14.82 0 38 128 83 1 +64.66 +/- 30.12
209062 ncm-dbt-01 1200676 500 158 93 249 +45.42 +/- 14.41 1 24 137 85 3 +89.48 +/- 28.74
209061 ncm-dbt-02 1212181 500 169 90 241 +55.36 +/- 15.82 0 33 109 104 4 +107.54 +/- 32.71
209060 ncm-dbt-05 1224889 500 168 90 242 +54.64 +/- 15.41 0 30 116 100 4 +106.01 +/- 31.72
209059 ncm-dbt-06 1231742 500 136 75 289 +42.6 +/- 14.12 0 27 137 84 2 +83.57 +/- 28.79
209058 ncm-dbt-03 1222467 500 156 84 260 +50.38 +/- 14.68 1 24 130 92 3 +99.95 +/- 29.7
209057 ncm-dbt-01 1202204 500 156 80 264 +53.22 +/- 14.69 0 25 128 93 4 +102.97 +/- 29.98
209056 ncm-dbt-02 1196786 500 151 102 247 +34.16 +/- 13.99 1 27 146 74 2 +67.55 +/- 27.6
209055 ncm-dbt-05 1230507 500 161 85 254 +53.22 +/- 14.82 0 28 120 100 2 +106.01 +/- 31.14
209054 ncm-dbt-06 1243193 500 155 98 247 +39.78 +/- 14.35 0 31 132 86 1 +79.17 +/- 29.53
209053 ncm-dbt-03 1239911 500 155 94 251 +42.6 +/- 13.98 0 28 133 89 0 +86.52 +/- 29.35
209052 ncm-dbt-01 1208109 500 161 99 240 +43.3 +/- 15.33 1 33 121 93 2 +86.52 +/- 31.04
209051 ncm-dbt-02 1195257 500 161 89 250 +50.38 +/- 14.68 1 26 124 98 1 +102.97 +/- 30.57
209050 ncm-dbt-05 1235821 500 149 92 259 +39.78 +/- 15.5 0 38 120 89 3 +76.25 +/- 31.18
209049 ncm-dbt-06 1240384 500 156 85 259 +49.67 +/- 14.38 0 25 132 90 3 +96.94 +/- 29.43
209048 ncm-dbt-03 1237049 500 162 88 250 +51.8 +/- 14.62 1 26 121 102 0 +107.54 +/- 30.99
209047 ncm-dbt-01 1203511 500 160 87 253 +51.09 +/- 14.58 0 26 128 93 3 +99.95 +/- 30.0
177940 ncm-dbt-01 1489082 158 38 31 89 +15.4 +/- 26.1 0 15 42 22 0 +30.87 +/- 52.81
177939 ncm-dbt-02 1487508 164 52 26 86 +55.55 +/- 26.92 0 11 34 37 0 +114.09 +/- 58.94
177938 ncm-dbt-04 1476063 168 57 29 82 +58.45 +/- 27.93 0 11 36 35 2 +111.19 +/- 57.33
177937 ncm-dbt-03 1498568 168 54 31 83 +47.86 +/- 26.41 0 10 43 29 2 +88.74 +/- 52.16
177936 ncm-dbt-05 1498745 170 55 35 80 +41.06 +/- 26.16 0 13 39 33 0 +83.31 +/- 55.03
177935 ncm-dbt-06 1493308 172 43 32 97 +22.25 +/- 22.38 0 10 56 19 1 +40.58 +/- 43.34

Commit

Commit ID 135caee606c86ade9e9c199ef469661c374eb9ba
Author Michael Chaly
Date 2021-10-03 09:28:19 UTC
Increase reductions with thread count Respin of multi-thread idea that was simplified away recently: basically doing more reductions with thread count since Lazy SMP naturally widens search. With drawish book this idea got simplified away but with less drawish book it again gains elo, maybe trying to reinstall other ideas that were simplified away previously can be beneficial. passed STC LLR: 2.96 (-2.94,2.94) <-0.50,2.50> Total: 39736 W: 10205 L: 9986 D: 19545 Ptnml(0-2): 45, 4254, 11064, 4447, 58 https://tests.stockfishchess.org/tests/view/615750702d02f48db3961b00 passed LTC LLR: 2.97 (-2.94,2.94) <0.50,3.50> Total: 60352 W: 15530 L: 15218 D: 29604 Ptnml(0-2): 24, 5900, 18016, 6212, 24 https://tests.stockfishchess.org/tests/view/6157d8935488e26ea5eace7f closes https://github.com/official-stockfish/Stockfish/pull/3724 Bench 5714575
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