Dev Builds » 20200921-0619

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 06:41:26 582286 4000 198 1895 1907 -157.34 ± 4.53 95 1521 370 14 0 -382.66 ± 17.74
ncm-dbt-02 06:41:44 586042 4000 219 1894 1887 -155.02 ± 4.59 92 1510 379 19 0 -373.64 ± 17.53
ncm-dbt-03 06:41:52 586172 4000 215 1897 1888 -155.76 ± 4.4 73 1555 354 17 1 -386.58 ± 18.14
ncm-dbt-04 06:42:40 567882 4000 213 1918 1869 -158.19 ± 4.49 93 1533 360 14 0 -387.57 ± 17.99
ncm-dbt-05 06:43:56 581910 4000 212 1878 1910 -154.07 ± 4.48 79 1526 377 18 0 -375.51 ± 17.58
20000 1057 9482 9461 -156.07 ± 2.01 432 7645 1840 82 1 -381.12 ± 7.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
443136 ncm-dbt-05 582903 500 26 232 242 -152.18 ± 12.09 8 191 50 1 0 -374.11 ± 48.94
443135 ncm-dbt-04 570589 500 16 241 243 -168.4 ± 11.9 12 202 35 1 0 -438.95 ± 59.31
443134 ncm-dbt-03 585717 500 34 230 236 -143.89 ± 13.12 7 186 54 2 1 -346.12 ± 47.1
443133 ncm-dbt-01 582861 500 25 244 231 -163.21 ± 12.3 12 196 41 1 0 -410.58 ± 54.45
443132 ncm-dbt-02 584369 500 27 242 231 -159.78 ± 12.75 13 190 46 1 0 -389.56 ± 51.18
443131 ncm-dbt-05 581527 500 26 218 256 -140.62 ± 12.84 6 184 56 4 0 -333.32 ± 46.21
443130 ncm-dbt-02 588771 500 26 242 232 -160.64 ± 12.69 13 191 45 1 0 -393.6 ± 51.79
443129 ncm-dbt-03 586604 500 31 229 240 -145.54 ± 13.25 9 184 53 4 0 -342.85 ± 47.56
443128 ncm-dbt-01 585464 500 25 232 243 -153.02 ± 12.91 12 184 53 1 0 -363.2 ± 47.43
443127 ncm-dbt-04 566336 500 26 244 230 -162.35 ± 13.03 14 192 42 2 0 -397.72 ± 53.79
443126 ncm-dbt-03 585042 500 20 240 240 -164.07 ± 12.92 13 197 37 3 0 -410.58 ± 57.43
443125 ncm-dbt-02 584874 500 26 236 238 -155.54 ± 13.2 13 186 49 2 0 -370.41 ± 49.56
443124 ncm-dbt-05 578794 500 25 234 241 -154.7 ± 12.61 9 194 44 3 0 -381.7 ± 52.45
443123 ncm-dbt-04 569190 500 21 246 233 -168.4 ± 12.38 15 195 40 0 0 -424.27 ± 55.03
443122 ncm-dbt-01 578218 500 24 242 234 -162.35 ± 13.87 17 187 43 3 0 -385.59 ± 53.09
443121 ncm-dbt-03 586520 500 21 243 236 -165.79 ± 12.57 13 198 37 2 0 -419.61 ± 57.55
443120 ncm-dbt-04 566770 500 24 238 238 -158.93 ± 11.66 8 199 42 1 0 -406.2 ± 53.75
443119 ncm-dbt-05 582611 500 27 234 239 -153.02 ± 12.26 9 190 50 1 0 -374.11 ± 48.94
443118 ncm-dbt-02 586393 500 25 228 247 -149.68 ± 12.66 9 187 52 2 0 -359.68 ± 48.01
443117 ncm-dbt-01 582819 500 21 236 243 -159.78 ± 12.75 13 190 46 1 0 -389.56 ± 51.18
443116 ncm-dbt-02 586435 500 24 229 247 -151.34 ± 12.57 10 186 53 1 0 -363.2 ± 47.43
443115 ncm-dbt-03 586097 500 26 238 236 -157.23 ± 11.05 5 203 41 1 0 -410.58 ± 54.45
443114 ncm-dbt-05 582235 500 19 239 242 -164.07 ± 12.69 13 196 39 2 0 -410.58 ± 55.96
443113 ncm-dbt-04 566572 500 29 239 232 -155.54 ± 12.34 10 191 48 1 0 -381.7 ± 50.02
443112 ncm-dbt-01 584243 500 24 250 226 -169.27 ± 12.78 15 198 35 2 0 -429.05 ± 59.28
443111 ncm-dbt-02 584832 500 39 242 219 -149.68 ± 14.97 16 178 49 7 0 -336.46 ± 49.21
443110 ncm-dbt-04 566928 500 33 245 222 -157.23 ± 13.52 14 187 46 3 0 -374.11 ± 51.25
443109 ncm-dbt-05 581402 500 34 242 224 -153.86 ± 13.08 11 189 47 3 0 -370.41 ± 50.67
443108 ncm-dbt-01 581361 500 25 227 248 -148.85 ± 12.49 8 188 52 2 0 -359.68 ± 48.01
443107 ncm-dbt-03 587409 500 26 243 231 -161.49 ± 12.64 12 195 41 2 0 -401.92 ± 54.49
443106 ncm-dbt-04 569310 500 30 231 239 -148.02 ± 12.74 9 185 54 2 0 -352.8 ± 47.05
443105 ncm-dbt-02 587792 500 26 239 235 -158.08 ± 11.95 8 199 41 2 0 -401.92 ± 54.49
443104 ncm-dbt-03 584748 500 28 248 224 -164.07 ± 12.0 10 202 36 2 0 -424.28 ± 58.4
443103 ncm-dbt-01 579124 500 31 236 233 -151.34 ± 13.2 12 183 53 2 0 -356.21 ± 47.52
443102 ncm-dbt-05 583740 500 25 235 240 -155.54 ± 12.56 10 192 46 2 0 -381.7 ± 51.25
443101 ncm-dbt-02 584874 500 26 236 238 -155.54 ± 12.78 10 193 44 3 0 -381.7 ± 52.45
443100 ncm-dbt-01 584201 500 23 228 249 -151.34 ± 11.91 6 195 47 2 0 -377.87 ± 50.67
443099 ncm-dbt-04 567363 500 34 234 232 -147.19 ± 13.58 11 182 53 4 0 -342.85 ± 47.56
443098 ncm-dbt-03 587240 500 29 226 245 -144.71 ± 11.61 4 190 55 1 0 -356.21 ± 46.49
443097 ncm-dbt-05 582068 500 30 244 226 -158.93 ± 13.01 13 190 45 2 0 -385.59 ± 51.85

Commit

Commit ID 16b4578cc1bb0cc0dead19e7d9248553c977f8ca
Author Stefan Geschwentner
Date 2020-09-21 06:19:10 UTC
Tweak hybrid treshold. Increase the first hybrid threshold with more material. Rewrite the hybrid rules for clarity. STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 24416 W: 3039 L: 2848 D: 18529 Ptnml(0-2): 135, 2136, 7503, 2271, 163 https://tests.stockfishchess.org/tests/view/5f6451efbb0cae038ca8f4dc LTC; LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 65016 W: 3702 L: 3455 D: 57859 Ptnml(0-2): 66, 2991, 26157, 3218, 76 https://tests.stockfishchess.org/tests/view/5f64b143bb0cae038ca8f51f closes https://github.com/official-stockfish/Stockfish/pull/3140 Bench: 3973739
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