Dev Builds » 20210910-0950

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 11:52:59 1234369 3958 1184 735 2039 +39.58 +/- 5.4 1 286 973 701 18 +77.08 +/- 10.91
ncm-dbt-02 11:48:48 1258605 3936 1208 738 1990 +41.69 +/- 5.44 2 274 965 706 21 +81.06 +/- 10.96
ncm-dbt-03 11:52:50 1223307 4008 1219 744 2045 +41.37 +/- 5.28 2 265 1010 710 17 +81.2 +/- 10.7
ncm-dbt-04 00:30:36 1479712 162 57 26 79 +67.31 +/- 25.17 0 7 36 38 0 +140.1 +/- 57.44
ncm-dbt-05 11:49:09 1263019 3964 1237 705 2022 +46.91 +/- 5.46 5 253 953 747 24 +92.02 +/- 11.03
ncm-dbt-06 11:53:22 1259579 3972 1217 732 2023 +42.64 +/- 5.41 1 282 948 741 14 +84.18 +/- 11.06
20000 6122 3680 10198 +42.63 +/- 2.4 11 1367 4885 3643 94 +83.53 +/- 4.87

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
209420 ncm-dbt-02 1233562 270 78 55 137 +29.67 +/- 19.88 0 19 76 38 2 +54.49 +/- 38.76
209419 ncm-dbt-01 1198533 290 81 61 148 +24.0 +/- 20.76 0 30 65 50 0 +48.23 +/- 42.29
209418 ncm-dbt-05 1254385 300 105 50 145 +64.42 +/- 18.34 0 11 75 62 2 +128.29 +/- 39.14
209417 ncm-dbt-06 1223952 298 90 48 160 +49.29 +/- 20.1 0 21 66 61 1 +98.13 +/- 42.13
209416 ncm-dbt-03 1252661 342 104 60 178 +44.95 +/- 19.3 2 21 81 65 2 +91.45 +/- 38.01
209415 ncm-dbt-02 1239763 500 163 89 248 +51.8 +/- 14.75 0 28 122 98 2 +102.97 +/- 30.86
209414 ncm-dbt-01 1195647 500 152 97 251 +38.37 +/- 15.66 0 39 121 86 4 +71.89 +/- 31.04
209413 ncm-dbt-06 1210609 500 155 94 251 +42.6 +/- 14.78 0 34 121 95 0 +86.52 +/- 31.04
209412 ncm-dbt-05 1245216 500 161 89 250 +50.38 +/- 15.95 1 32 116 96 5 +96.94 +/- 31.72
209411 ncm-dbt-03 1244181 500 167 102 231 +45.42 +/- 14.55 0 30 126 93 1 +90.97 +/- 30.33
209410 ncm-dbt-02 1238295 500 151 95 254 +39.08 +/- 15.21 0 36 125 86 3 +74.79 +/- 30.51
209409 ncm-dbt-01 1201637 500 151 101 248 +34.86 +/- 14.44 0 34 133 82 1 +68.99 +/- 29.43
209408 ncm-dbt-06 1229819 500 144 102 254 +29.25 +/- 14.46 0 38 132 80 0 +58.93 +/- 29.6
209407 ncm-dbt-05 1248886 500 160 94 246 +46.13 +/- 15.85 1 36 111 100 2 +92.46 +/- 32.39
209406 ncm-dbt-03 1230813 500 151 93 256 +40.48 +/- 14.91 0 34 126 88 2 +79.17 +/- 30.36
209405 ncm-dbt-02 1226359 500 150 87 263 +44.01 +/- 15.49 0 35 121 90 4 +83.57 +/- 31.04
209404 ncm-dbt-01 1188966 500 144 93 263 +35.56 +/- 15.5 0 41 119 88 2 +68.99 +/- 31.3
209403 ncm-dbt-06 1230263 500 167 87 246 +56.07 +/- 15.35 0 28 119 98 5 +107.54 +/- 31.29
209402 ncm-dbt-05 1214260 500 153 103 244 +34.86 +/- 15.33 1 37 125 85 2 +68.99 +/- 30.52
209401 ncm-dbt-03 1235713 500 148 110 242 +26.45 +/- 14.52 0 38 138 72 2 +50.38 +/- 28.82
209400 ncm-dbt-06 1239956 500 145 103 252 +29.25 +/- 16.06 1 45 118 83 3 +56.07 +/- 31.42
209399 ncm-dbt-02 1235880 500 153 84 263 +48.25 +/- 15.34 0 34 115 99 2 +95.44 +/- 31.86
209398 ncm-dbt-01 1209901 500 155 84 261 +49.67 +/- 14.38 0 26 129 93 2 +98.44 +/- 29.86
209397 ncm-dbt-05 1226978 500 157 92 251 +45.42 +/- 15.19 0 33 122 92 3 +88.0 +/- 30.9
209396 ncm-dbt-03 1235237 500 147 90 263 +39.78 +/- 14.87 0 34 127 87 2 +77.71 +/- 30.23
209395 ncm-dbt-06 1247070 500 160 92 248 +47.54 +/- 15.8 0 38 108 102 2 +93.95 +/- 32.8
209394 ncm-dbt-01 1212091 500 144 91 265 +36.97 +/- 14.57 0 34 130 85 1 +73.34 +/- 29.83
209393 ncm-dbt-02 1222610 500 158 90 252 +47.54 +/- 14.26 0 27 129 93 1 +95.44 +/- 29.88
209392 ncm-dbt-05 1231009 500 142 92 266 +34.86 +/- 15.2 1 37 124 87 1 +70.44 +/- 30.65
209391 ncm-dbt-03 1242448 500 141 74 285 +46.84 +/- 15.14 0 35 113 102 0 +95.44 +/- 32.13
209390 ncm-dbt-01 1198155 500 157 92 251 +45.42 +/- 15.93 1 35 116 94 4 +88.0 +/- 31.71
209389 ncm-dbt-06 1235238 500 157 91 252 +46.13 +/- 14.98 0 31 125 91 3 +89.48 +/- 30.48
209388 ncm-dbt-02 1223520 500 153 110 237 +29.95 +/- 15.63 1 41 125 80 3 +57.5 +/- 30.53
209387 ncm-dbt-05 1216393 500 154 75 271 +55.36 +/- 15.94 1 30 113 101 5 +107.54 +/- 32.15
209386 ncm-dbt-03 1225245 500 156 92 252 +44.72 +/- 15.15 0 32 126 88 4 +85.04 +/- 30.35
209385 ncm-dbt-01 1210344 500 150 82 268 +47.54 +/- 15.68 0 36 113 98 3 +92.46 +/- 32.12
209384 ncm-dbt-03 850629 500 152 94 254 +40.48 +/- 14.65 0 30 136 80 4 +76.25 +/- 28.98
209383 ncm-dbt-06 1227736 500 147 85 268 +43.3 +/- 14.95 0 35 118 97 0 +88.0 +/- 31.44
209382 ncm-dbt-02 1212494 500 151 99 250 +36.26 +/- 16.49 1 45 108 93 3 +70.44 +/- 32.71
209381 ncm-dbt-05 1230987 500 158 77 265 +56.78 +/- 14.73 0 24 125 97 4 +110.6 +/- 30.39
177970 ncm-dbt-04 1479712 162 57 26 79 +67.31 +/- 25.17 0 7 36 38 0 +140.1 +/- 57.44
177969 ncm-dbt-02 1494967 166 51 29 86 +46.31 +/- 25.16 0 9 44 29 1 +89.86 +/- 51.32
177968 ncm-dbt-06 1491576 174 52 30 92 +44.16 +/- 25.34 0 12 41 34 0 +89.81 +/- 53.68
177967 ncm-dbt-05 1499065 164 47 33 84 +29.73 +/- 25.7 0 13 42 27 0 +59.9 +/- 52.9
177966 ncm-dbt-03 1492837 166 53 29 84 +50.58 +/- 26.24 0 11 37 35 0 +103.41 +/- 56.57
177965 ncm-dbt-01 1494048 168 50 34 84 +33.19 +/- 24.91 0 11 47 25 1 +62.71 +/- 49.42

Commit

Commit ID 30fdbf43283eb0d2f8e5ca325877d3e514758804
Author Michael Chaly
Date 2021-09-10 09:50:43 UTC
Decrease depth for cutnodes with no tt move By analogy to existing logic of decreasing depth for PvNodes w/o tt move do the same for cutNodes. Passed STC https://tests.stockfishchess.org/tests/view/613abf5a689039fce12e1155 LLR: 2.94 (-2.94,2.94) <-0.50,2.50> Total: 90336 W: 23108 L: 22804 D: 44424 Ptnml(0-2): 286, 10316, 23642, 10656, 268 Passed LTC https://tests.stockfishchess.org/tests/view/613ae330689039fce12e1172 LLR: 2.94 (-2.94,2.94) <0.50,3.50> Total: 37736 W: 9607 L: 9346 D: 18783 Ptnml(0-2): 21, 3917, 10730, 4180, 20 closes https://github.com/official-stockfish/Stockfish/pull/3697 bench 5891181
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