Dev Builds » 20210601-2121

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 06:43:00 582335 4000 365 1741 1894 -124.6 ± 5.04 79 1265 609 47 0 -268.47 ± 13.8
ncm-dbt-02 06:44:17 586546 3996 399 1737 1860 -121.0 ± 5.11 79 1235 629 55 0 -257.67 ± 13.58
ncm-dbt-03 06:41:59 585655 4000 369 1767 1864 -126.77 ± 5.13 84 1285 576 55 0 -273.61 ± 14.2
ncm-dbt-04 06:44:42 566787 4004 390 1776 1838 -125.45 ± 5.14 90 1257 604 51 0 -267.78 ± 13.86
ncm-dbt-05 06:43:37 581584 4000 378 1771 1851 -126.28 ± 5.17 86 1280 575 59 0 -271.48 ± 14.22
20000 1901 8792 9307 -124.81 ± 2.29 418 6322 2993 267 0 -267.75 ± 6.22

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
455197 ncm-dbt-04 563275 4 0 2 2 -190.27 ± 27.79 0 2 0 0 0 -1199.83 ± 312.71
455196 ncm-dbt-02 585928 496 44 222 230 -130.49 ± 14.65 12 160 70 6 0 -281.27 ± 41.13
455195 ncm-dbt-05 584076 500 41 229 230 -137.37 ± 14.95 15 164 65 6 0 -295.94 ± 42.75
455194 ncm-dbt-01 581943 500 42 207 251 -119.11 ± 14.68 9 156 76 9 0 -254.16 ± 39.42
455193 ncm-dbt-04 564291 500 44 219 237 -126.97 ± 14.45 8 168 65 9 0 -280.42 ± 42.65
455192 ncm-dbt-03 586012 500 50 215 235 -119.11 ± 14.52 10 152 81 7 0 -251.89 ± 38.11
455191 ncm-dbt-02 586097 500 54 219 227 -119.11 ± 13.86 7 157 80 6 0 -258.75 ± 38.32
455190 ncm-dbt-05 578095 500 43 223 234 -130.94 ± 14.39 11 164 69 6 0 -285.49 ± 41.44
455189 ncm-dbt-01 582861 500 49 217 234 -121.45 ± 14.67 12 150 82 6 0 -254.16 ± 37.82
455188 ncm-dbt-04 569190 500 40 222 238 -132.54 ± 14.53 14 158 74 4 0 -282.94 ± 39.86
455187 ncm-dbt-03 585928 500 49 217 234 -121.45 ± 13.14 5 162 79 4 0 -270.57 ± 38.47
455186 ncm-dbt-05 582152 500 45 224 231 -130.14 ± 14.57 11 164 68 7 0 -282.94 ± 41.76
455185 ncm-dbt-02 586012 500 42 211 247 -122.24 ± 13.83 9 155 82 4 0 -263.42 ± 37.69
455184 ncm-dbt-01 583279 500 45 214 241 -122.24 ± 13.83 7 161 76 6 0 -268.17 ± 39.39
455183 ncm-dbt-03 586393 500 47 221 232 -126.17 ± 14.62 9 165 67 9 0 -275.45 ± 42.01
455182 ncm-dbt-04 565115 500 43 219 238 -127.76 ± 14.44 11 160 73 6 0 -275.45 ± 40.24
455181 ncm-dbt-02 586223 500 58 212 230 -110.6 ± 14.69 9 145 87 9 0 -230.16 ± 36.73
455180 ncm-dbt-05 581194 500 39 216 245 -128.55 ± 13.56 4 177 61 8 0 -295.94 ± 44.08
455179 ncm-dbt-03 585042 500 47 224 229 -128.55 ± 14.76 11 163 68 8 0 -277.93 ± 41.74
455178 ncm-dbt-01 581444 500 48 212 240 -118.33 ± 14.84 11 150 81 8 0 -247.41 ± 38.13
455177 ncm-dbt-04 567680 500 46 227 227 -131.74 ± 14.54 14 157 75 4 0 -280.42 ± 39.57
455176 ncm-dbt-02 586562 500 54 214 232 -115.22 ± 15.31 11 149 79 11 0 -238.66 ± 38.63
455175 ncm-dbt-05 579951 500 49 214 237 -119.11 ± 14.03 9 152 84 5 0 -254.16 ± 37.27
455174 ncm-dbt-03 585970 500 46 228 226 -132.54 ± 14.18 12 162 72 4 0 -288.06 ± 40.46
455173 ncm-dbt-04 565705 500 66 222 212 -112.14 ± 13.39 5 151 89 5 0 -243.0 ± 36.1
455172 ncm-dbt-01 582778 500 42 225 233 -133.34 ± 13.99 10 168 67 5 0 -295.94 ± 42.08
455171 ncm-dbt-05 582945 500 57 218 225 -116.0 ± 15.61 13 146 80 11 0 -236.51 ± 38.38
455170 ncm-dbt-02 587962 500 50 220 230 -123.02 ± 14.97 13 151 79 7 0 -256.44 ± 38.62
455169 ncm-dbt-03 586858 500 43 213 244 -123.02 ± 15.44 13 154 73 10 0 -256.44 ± 40.21
455168 ncm-dbt-01 583196 500 47 232 221 -134.95 ± 13.59 12 162 75 1 0 -295.94 ± 39.27
455167 ncm-dbt-04 566888 500 42 214 244 -124.6 ± 14.31 10 158 76 6 0 -268.17 ± 39.39
455166 ncm-dbt-05 582318 500 47 223 230 -127.76 ± 14.6 11 161 71 7 0 -275.45 ± 40.84
455165 ncm-dbt-02 586520 500 50 227 223 -128.55 ± 13.91 10 161 75 4 0 -280.42 ± 39.57
455164 ncm-dbt-03 582903 500 47 229 224 -132.54 ± 14.87 13 163 67 7 0 -285.49 ± 42.08
455163 ncm-dbt-01 581735 500 48 225 227 -128.55 ± 14.08 10 162 73 5 0 -280.42 ± 40.21
455162 ncm-dbt-04 568673 500 44 232 224 -137.37 ± 14.43 14 164 68 4 0 -298.62 ± 41.71
455161 ncm-dbt-03 586139 500 40 220 240 -130.94 ± 14.39 11 164 69 6 0 -285.49 ± 41.44
455160 ncm-dbt-01 581444 500 44 209 247 -119.11 ± 14.19 8 156 79 7 0 -256.44 ± 38.62
455159 ncm-dbt-05 581943 500 57 224 219 -120.67 ± 15.15 12 152 77 9 0 -251.89 ± 39.16
455158 ncm-dbt-02 587070 500 47 212 241 -119.11 ± 14.36 8 157 77 8 0 -256.44 ± 39.15
455157 ncm-dbt-04 570268 500 65 219 216 -110.6 ± 16.02 14 139 84 13 0 -219.87 ± 37.42

Commit

Commit ID 95f73ff393e5b87b2a3b4195d698b6620fd4a123
Author Stefan Geschwentner
Date 2021-06-01 21:21:00 UTC
Remove formerPV variable. STC: LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 75672 W: 6546 L: 6496 D: 62630 Ptnml(0-2): 238, 5274, 26761, 5326, 237 https://tests.stockfishchess.org/tests/view/60b349c0ec0c03148cbed055 LTC: LLR: 2.98 (-2.94,2.94) <-2.50,0.50> Total: 137816 W: 4676 L: 4689 D: 128451 Ptnml(0-2): 52, 4237, 60354, 4202, 63 https://tests.stockfishchess.org/tests/view/60b38970ec0c03148cbed075 closes https://github.com/official-stockfish/Stockfish/pull/3515 Bench: 4892288
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