Dev Builds » 20201212-0831

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 06:51:13 581633 3990 280 1837 1873 -143.17 ± 4.97 96 1403 458 38 0 -324.41 ± 15.94
ncm-dbt-02 06:49:29 585713 4000 313 1872 1815 -142.97 ± 4.98 101 1392 472 35 0 -321.93 ± 15.7
ncm-dbt-03 06:50:34 585672 4020 289 1888 1843 -146.27 ± 4.87 102 1422 459 27 0 -333.93 ± 15.92
ncm-dbt-04 06:50:08 566839 4018 296 1894 1828 -146.24 ± 4.99 110 1411 456 31 1 -331.13 ± 15.97
ncm-dbt-05 06:51:15 582163 3972 275 1858 1839 -146.59 ± 4.93 103 1406 448 29 0 -334.27 ± 16.12
20000 1453 9349 9198 -145.05 ± 2.21 512 7034 2293 160 1 -329.08 ± 7.11

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
446388 ncm-dbt-04 566967 18 2 9 7 -142.54 ± 56.5 0 7 2 0 0 -361.06 ± 503.16
446387 ncm-dbt-03 588984 20 0 9 11 -168.32 ± 41.08 0 9 1 0 0 -511.15 ± 444.55
446386 ncm-dbt-05 580613 472 36 210 226 -134.4 ± 13.75 7 164 61 4 0 -306.58 ± 44.15
446385 ncm-dbt-01 583824 490 35 229 226 -145.5 ± 14.6 16 165 61 3 0 -320.11 ± 44.13
446384 ncm-dbt-02 585421 500 36 230 234 -142.25 ± 14.48 15 168 63 4 0 -312.48 ± 43.44
446383 ncm-dbt-04 570068 500 28 240 232 -157.23 ± 13.52 14 187 46 3 0 -374.11 ± 51.25
446382 ncm-dbt-03 581402 500 42 222 236 -130.94 ± 14.04 8 171 64 7 0 -293.29 ± 43.07
446381 ncm-dbt-05 577889 500 33 231 236 -145.54 ± 13.05 9 183 55 3 0 -342.85 ± 46.64
446380 ncm-dbt-01 579207 500 29 227 244 -145.54 ± 12.64 6 190 50 4 0 -352.8 ± 49.02
446379 ncm-dbt-02 586097 500 51 241 208 -138.99 ± 14.03 12 170 64 4 0 -309.64 ± 43.08
446378 ncm-dbt-03 584537 500 37 253 210 -160.64 ± 13.34 16 185 48 1 0 -381.7 ± 50.02
446377 ncm-dbt-04 567244 500 39 235 226 -143.89 ± 14.61 14 174 56 6 0 -321.19 ± 46.14
446376 ncm-dbt-05 582027 500 37 227 236 -138.99 ± 13.48 10 173 64 3 0 -315.35 ± 43.03
446375 ncm-dbt-02 587409 500 37 242 221 -151.34 ± 13.8 13 183 50 4 0 -352.8 ± 49.02
446374 ncm-dbt-01 581777 500 41 230 229 -138.18 ± 13.69 9 176 60 5 0 -315.35 ± 44.57
446373 ncm-dbt-04 566928 500 34 232 234 -145.54 ± 14.92 17 168 62 2 1 -321.19 ± 43.77
446372 ncm-dbt-03 584369 500 34 243 223 -154.7 ± 14.43 17 179 50 4 0 -352.8 ± 49.02
446371 ncm-dbt-02 585506 500 40 222 238 -132.54 ± 14.53 11 167 65 7 0 -290.66 ± 42.73
446370 ncm-dbt-01 578300 500 36 237 227 -148.02 ± 14.85 13 184 44 9 0 -339.63 ± 51.39
446369 ncm-dbt-05 583363 500 32 234 234 -148.85 ± 14.82 17 173 55 5 0 -330.23 ± 46.62
446368 ncm-dbt-03 584411 500 33 239 228 -152.18 ± 13.56 13 183 51 3 0 -356.21 ± 48.54
446367 ncm-dbt-04 567522 500 32 243 225 -156.39 ± 13.77 16 181 51 2 0 -363.2 ± 48.51
446366 ncm-dbt-01 579744 500 33 230 237 -144.71 ± 13.08 11 176 62 1 0 -333.32 ± 43.57
446365 ncm-dbt-02 586012 500 41 236 223 -143.07 ± 13.34 10 178 59 3 0 -330.23 ± 44.94
446364 ncm-dbt-05 582778 500 33 238 229 -151.34 ± 14.18 17 173 58 2 0 -339.63 ± 45.29
446363 ncm-dbt-03 587028 500 30 235 235 -151.34 ± 13.99 17 172 60 1 0 -339.63 ± 44.35
446362 ncm-dbt-04 566967 500 31 223 246 -140.62 ± 13.24 8 180 58 4 0 -327.18 ± 45.37
446361 ncm-dbt-02 584748 500 39 244 217 -151.34 ± 14.18 15 179 52 4 0 -346.12 ± 48.03
446360 ncm-dbt-01 584117 500 32 233 235 -148.02 ± 14.12 14 177 55 4 0 -336.46 ± 46.65
446359 ncm-dbt-05 583070 500 38 232 230 -142.25 ± 15.01 14 174 54 8 0 -315.35 ± 46.8
446358 ncm-dbt-03 586435 500 36 234 230 -145.54 ± 12.85 10 179 60 1 0 -339.63 ± 44.35
446357 ncm-dbt-04 566375 500 39 236 225 -144.71 ± 13.67 9 185 50 6 0 -339.63 ± 48.85
446356 ncm-dbt-02 583614 500 35 228 237 -141.44 ± 14.51 13 173 58 6 0 -315.35 ± 45.33
446355 ncm-dbt-04 564174 500 39 242 219 -149.68 ± 15.33 20 168 57 5 0 -324.17 ± 45.77
446354 ncm-dbt-01 584159 500 41 227 232 -135.76 ± 14.47 12 168 64 6 0 -298.62 ± 43.1
446353 ncm-dbt-05 583698 500 39 241 220 -148.85 ± 14.09 15 175 57 3 0 -336.46 ± 45.77
446352 ncm-dbt-03 586816 500 42 226 232 -134.15 ± 14.33 11 168 65 6 0 -295.94 ± 42.75
446351 ncm-dbt-02 586901 500 34 229 237 -143.07 ± 13.73 12 174 61 3 0 -324.17 ± 44.15
446350 ncm-dbt-04 565312 500 52 234 214 -132.54 ± 14.01 12 161 74 3 0 -288.06 ± 39.79
446349 ncm-dbt-05 583866 500 27 245 228 -162.35 ± 12.81 14 191 44 1 0 -397.72 ± 52.42
446348 ncm-dbt-03 587070 500 35 227 238 -140.62 ± 13.62 10 176 60 4 0 -321.19 ± 44.57
446347 ncm-dbt-01 581943 500 33 224 243 -139.81 ± 14.89 15 167 62 6 0 -304.07 ± 43.81

Commit

Commit ID d706ae62d73d90c0f80cdccd58384a347295d549
Author FauziAkram
Date 2020-12-12 08:31:28 UTC
New Imbalance Tables Tweak Imbalance tables tweaked to contain MiddleGame and Endgame values, instead of a single value. The idea started from Fisherman, which requested my help to tune the values back in June/July, so I tuned the values back then, and we were able to accomplish good results, but not enough to pass both STC and LTC tests. So after the recent changes, I decided to give it another shot, and I am glad that it was a successful attempt. A special thanks goes also to mstembera, which notified me a simple way to let the patch perform a little better. Passed STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 115976 W: 23124 L: 22695 D: 70157 Ptnml(0-2): 2074, 13652, 26285, 13725, 2252 https://tests.stockfishchess.org/tests/view/5fc92d2d42a050a89f02ccc8 Passed LTC: LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 156304 W: 20617 L: 20024 D: 115663 Ptnml(0-2): 1138, 14647, 46084, 15050, 1233 https://tests.stockfishchess.org/tests/view/5fc9fee142a050a89f02cd3e closes https://github.com/official-stockfish/Stockfish/pull/3255 Bench: 4278746
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