Dev Builds » 20210415-0853

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 06:42:03 583351 4020 307 1831 1882 -138.63 ± 5.03 109 1336 535 30 0 -304.06 ± 14.72
ncm-dbt-02 06:41:20 586051 3984 300 1806 1878 -138.19 ± 4.87 84 1368 510 30 0 -310.96 ± 15.09
ncm-dbt-03 06:41:06 584280 3996 338 1846 1812 -137.93 ± 5.03 106 1325 538 29 0 -302.49 ± 14.67
ncm-dbt-04 06:41:23 568701 4000 320 1844 1836 -139.4 ± 5.03 98 1368 494 40 0 -310.35 ± 15.34
ncm-dbt-05 06:41:33 580200 4000 293 1846 1861 -142.36 ± 4.97 101 1384 482 33 0 -319.72 ± 15.53
20000 1558 9173 9269 -139.3 ± 2.23 498 6781 2559 162 0 -309.43 ± 6.73

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
456219 ncm-dbt-01 583154 20 5 9 6 -70.4 ± 55.57 0 4 6 0 0 -147.13 ± 135.14
456218 ncm-dbt-02 585928 484 34 219 231 -139.9 ± 13.75 9 171 58 4 0 -320.65 ± 45.36
456217 ncm-dbt-03 582318 496 45 214 237 -123.31 ± 14.73 11 154 76 7 0 -261.71 ± 39.41
456216 ncm-dbt-04 566099 500 47 231 222 -134.15 ± 12.86 7 172 69 2 0 -306.84 ± 41.23
456215 ncm-dbt-05 578918 500 39 238 223 -146.36 ± 13.02 12 175 63 0 0 -336.45 ± 43.03
456214 ncm-dbt-01 583572 500 37 225 238 -137.37 ± 14.78 15 163 67 5 0 -295.94 ± 42.08
456213 ncm-dbt-02 586985 500 36 223 241 -136.56 ± 14.1 10 173 61 6 0 -306.84 ± 44.17
456212 ncm-dbt-04 570268 500 41 241 218 -147.19 ± 15.4 21 162 63 4 0 -312.48 ± 43.44
456211 ncm-dbt-03 584159 500 50 235 215 -134.95 ± 14.82 18 151 79 2 0 -280.42 ± 38.28
456210 ncm-dbt-05 575680 500 39 239 222 -147.19 ± 14.33 17 168 63 2 0 -324.17 ± 43.32
456209 ncm-dbt-01 581943 500 35 232 233 -144.71 ± 14.04 12 178 55 5 0 -330.23 ± 46.62
456208 ncm-dbt-02 584706 500 45 225 230 -130.94 ± 13.69 11 160 77 2 0 -285.49 ± 38.83
456207 ncm-dbt-04 569071 500 34 232 234 -145.54 ± 14.75 14 177 52 7 0 -327.18 ± 47.79
456206 ncm-dbt-03 586604 500 36 236 228 -147.19 ± 14.7 19 164 65 2 0 -318.25 ± 42.59
456205 ncm-dbt-05 580199 500 36 225 239 -138.18 ± 13.32 9 174 64 3 0 -315.35 ± 43.03
456204 ncm-dbt-01 585295 500 35 227 238 -140.62 ± 12.84 9 175 65 1 0 -324.17 ± 42.47
456203 ncm-dbt-02 586393 500 33 228 239 -143.07 ± 13.34 10 178 59 3 0 -330.23 ± 44.94
456202 ncm-dbt-04 568633 500 41 228 231 -136.56 ± 14.27 12 168 65 5 0 -301.33 ± 42.75
456201 ncm-dbt-03 584537 500 41 232 227 -139.81 ± 13.45 11 171 66 2 0 -315.35 ± 42.24
456200 ncm-dbt-05 580862 500 33 221 246 -137.37 ± 15.11 13 171 57 9 0 -301.33 ± 45.48
456199 ncm-dbt-01 581361 500 46 230 224 -134.15 ± 15.33 17 156 71 6 0 -280.42 ± 40.83
456198 ncm-dbt-02 585759 500 35 226 239 -139.81 ± 13.64 9 178 58 5 0 -321.19 ± 45.36
456197 ncm-dbt-04 570228 500 37 231 232 -142.25 ± 14.3 11 179 53 7 0 -324.17 ± 47.35
456196 ncm-dbt-03 585970 500 42 238 220 -143.89 ± 14.07 14 171 62 3 0 -321.19 ± 43.77
456195 ncm-dbt-05 583070 500 33 233 234 -147.19 ± 13.58 12 179 56 3 0 -339.63 ± 46.2
456194 ncm-dbt-01 583447 500 32 233 235 -148.02 ± 14.3 16 172 59 3 0 -330.23 ± 44.94
456193 ncm-dbt-02 588047 500 39 217 244 -129.35 ± 13.9 9 165 71 5 0 -285.49 ± 40.81
456192 ncm-dbt-04 567284 500 38 231 231 -141.44 ± 15.03 16 167 61 6 0 -306.84 ± 44.17
456191 ncm-dbt-03 581236 500 35 230 235 -143.07 ± 13.15 10 177 61 2 0 -330.23 ± 44.08
456190 ncm-dbt-05 586477 500 43 229 228 -135.76 ± 15.31 15 164 63 8 0 -290.66 ± 43.37
456189 ncm-dbt-01 583070 500 38 216 246 -129.35 ± 14.58 11 163 69 7 0 -280.42 ± 41.44
456188 ncm-dbt-02 585970 500 41 240 219 -146.36 ± 14.54 16 171 59 4 0 -324.17 ± 44.97
456187 ncm-dbt-04 568156 500 42 219 239 -128.55 ± 13.38 6 170 69 5 0 -290.66 ± 41.43
456186 ncm-dbt-03 586308 500 44 233 223 -138.18 ± 14.23 11 173 60 6 0 -309.64 ± 44.55
456185 ncm-dbt-05 581652 500 33 232 235 -146.36 ± 14.36 14 176 55 5 0 -330.23 ± 46.62
456184 ncm-dbt-01 585126 500 38 228 234 -138.99 ± 13.29 10 172 66 2 0 -315.35 ± 42.24
456183 ncm-dbt-03 583112 500 45 228 227 -133.34 ± 14.34 12 164 69 5 0 -290.66 ± 41.43
456182 ncm-dbt-02 584622 500 37 228 235 -139.81 ± 13.07 10 172 67 1 0 -318.25 ± 41.77
456181 ncm-dbt-04 569869 500 40 231 229 -139.81 ± 13.83 11 173 62 4 0 -315.35 ± 43.81
456180 ncm-dbt-01 583196 500 41 231 228 -138.99 ± 14.74 19 153 77 1 0 -290.66 ± 38.7
456179 ncm-dbt-05 574744 500 37 229 234 -140.62 ± 13.24 9 177 61 3 0 -324.17 ± 44.15

Commit

Commit ID 79bb28281ce5e9b40b2662915a96e9072ddad82e
Author bmc4
Date 2021-04-15 08:53:51 UTC
Merge all move generators Merging `generate<EVASIONS>` and `generate<QUIET_CHECKS>` into `generate_all()`. STC: LLR: 2.94 (-2.94,2.94) {-1.00,0.20} Total: 161800 W: 14585 L: 14624 D: 132591 Ptnml(0-2): 577, 11681, 56451, 11586, 605 https://tests.stockfishchess.org/tests/view/606532732b2df919fd5f026d LTC: LLR: 2.98 (-2.94,2.94) {-0.70,0.20} Total: 188504 W: 6906 L: 6961 D: 174637 Ptnml(0-2): 87, 6272, 81610, 6175, 108 https://tests.stockfishchess.org/tests/view/6065b0772b2df919fd5f02ae ------------ Verified for correctness of `EVASIONS` by running perft: ``` ./stockfish b3nch 16 1 6 default perft (replace 3 by e in b3nch) Nodes searched : 71608931810 ``` Also tested for correctness on Chess960 with a similar code shown here: https://github.com/official-stockfish/Stockfish/pull/3418#issuecomment-816630295 ``` ./stockfish b3nch 16 1 6 fischer.txt perft Nodes searched : 506736009395 ``` ------------ Closes https://github.com/official-stockfish/Stockfish/pull/3418 No functional change
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