Dev Builds » 20201214-0648

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 06:51:47 581265 3998 271 1826 1901 -142.64 ± 4.95 98 1393 474 34 0 -321.83 ± 15.67
ncm-dbt-02 06:51:10 586778 4012 318 1837 1857 -138.43 ± 4.98 91 1376 501 37 1 -309.9 ± 15.23
ncm-dbt-03 06:51:22 585192 3994 292 1857 1845 -143.83 ± 5.0 104 1392 466 35 0 -323.86 ± 15.8
ncm-dbt-04 06:50:11 567700 4000 304 1854 1842 -142.05 ± 5.01 104 1375 489 31 1 -317.89 ± 15.42
ncm-dbt-05 06:51:47 582668 3996 287 1836 1873 -142.11 ± 4.93 101 1374 496 27 0 -318.78 ± 15.3
20000 1472 9210 9318 -141.81 ± 2.22 498 6910 2426 164 2 -318.4 ± 6.91

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
438212 ncm-dbt-02 584790 12 2 6 4 -120.31 ± 75.55 0 4 2 0 0 -279.41 ± 548.26
438211 ncm-dbt-03 584243 494 36 226 232 -140.87 ± 14.47 10 178 51 8 0 -321.74 ± 48.12
438210 ncm-dbt-04 566533 500 43 227 230 -134.15 ± 13.61 9 170 67 4 0 -301.33 ± 42.04
438209 ncm-dbt-05 584748 496 39 226 231 -137.78 ± 13.21 8 174 63 3 0 -316.63 ± 43.39
438208 ncm-dbt-01 583531 498 32 223 243 -140.43 ± 12.88 8 177 62 2 0 -326.38 ± 43.69
438207 ncm-dbt-02 587962 500 39 229 232 -138.99 ± 14.03 11 173 61 5 0 -312.48 ± 44.19
438206 ncm-dbt-03 587155 500 34 241 225 -153.02 ± 15.75 23 166 56 5 0 -327.18 ± 46.19
438205 ncm-dbt-04 568077 500 34 227 239 -141.44 ± 14.51 16 164 67 3 0 -306.84 ± 41.99
438204 ncm-dbt-05 576578 500 25 241 234 -160.64 ± 13.55 17 183 49 1 0 -377.87 ± 49.47
438203 ncm-dbt-01 581777 500 24 237 239 -158.08 ± 14.47 17 184 44 5 0 -366.78 ± 52.23
438202 ncm-dbt-02 587028 500 35 226 239 -139.81 ± 14.37 13 170 62 5 0 -309.64 ± 43.82
438201 ncm-dbt-04 570108 500 42 238 220 -143.89 ± 15.97 18 169 55 7 1 -312.48 ± 46.38
438200 ncm-dbt-03 585000 500 48 234 218 -135.76 ± 13.57 10 169 68 3 0 -304.07 ± 41.65
438199 ncm-dbt-05 583531 500 35 229 236 -142.25 ± 13.56 11 175 61 3 0 -324.17 ± 44.15
438198 ncm-dbt-01 582152 500 33 226 241 -141.44 ± 13.78 13 169 66 2 0 -315.35 ± 42.24
438197 ncm-dbt-02 587707 500 47 223 230 -127.76 ± 12.84 2 178 64 6 0 -298.62 ± 43.1
438196 ncm-dbt-03 584285 500 40 239 221 -146.36 ± 13.8 12 179 55 4 0 -336.46 ± 46.65
438195 ncm-dbt-04 567244 500 26 232 242 -152.18 ± 12.74 9 191 47 3 0 -370.41 ± 50.67
438194 ncm-dbt-05 584748 500 32 235 233 -149.68 ± 14.24 15 177 54 4 0 -339.63 ± 47.1
438193 ncm-dbt-01 578671 500 34 222 244 -137.37 ± 13.71 10 172 64 4 0 -309.64 ± 43.08
438192 ncm-dbt-02 583740 500 38 232 230 -142.25 ± 14.12 14 169 64 3 0 -315.35 ± 43.03
438191 ncm-dbt-03 586477 500 33 238 229 -151.34 ± 14.74 17 176 52 5 0 -339.63 ± 47.98
438190 ncm-dbt-04 569430 500 45 227 228 -132.54 ± 14.36 11 166 67 6 0 -290.66 ± 42.08
438189 ncm-dbt-05 582235 500 41 222 237 -131.74 ± 14.37 10 168 65 7 0 -290.66 ± 42.73
438188 ncm-dbt-01 582652 500 34 228 238 -142.25 ± 13.37 10 177 60 3 0 -327.18 ± 44.54
438187 ncm-dbt-02 586858 500 39 227 234 -137.37 ± 13.15 9 172 67 2 0 -312.48 ± 41.9
438186 ncm-dbt-04 565587 500 40 230 230 -138.99 ± 14.74 13 171 59 7 0 -306.84 ± 44.88
438185 ncm-dbt-03 583698 500 33 221 246 -137.37 ± 13.9 12 167 68 3 0 -304.07 ± 41.65
438184 ncm-dbt-05 583447 500 36 236 228 -147.19 ± 14.33 18 165 66 1 0 -321.19 ± 42.12
438183 ncm-dbt-01 578794 500 36 235 229 -146.36 ± 14.18 14 175 57 4 0 -330.23 ± 45.79
438182 ncm-dbt-02 589839 500 38 236 226 -145.54 ± 15.27 17 170 58 4 1 -321.19 ± 45.36
438181 ncm-dbt-04 569509 500 30 229 241 -146.36 ± 12.4 9 181 60 0 0 -346.11 ± 44.19
438180 ncm-dbt-03 584076 500 32 232 236 -147.19 ± 12.98 10 182 56 2 0 -346.12 ± 46.15
438179 ncm-dbt-05 581985 500 40 230 230 -138.99 ± 14.03 11 173 61 5 0 -312.48 ± 44.19
438178 ncm-dbt-01 584243 500 39 223 238 -134.15 ± 13.97 9 172 63 6 0 -301.33 ± 43.45
438177 ncm-dbt-02 585674 500 33 230 237 -144.71 ± 14.94 15 174 54 7 0 -321.19 ± 46.91
438176 ncm-dbt-04 565115 500 44 244 212 -147.19 ± 14.51 19 163 67 1 0 -318.25 ± 41.77
438175 ncm-dbt-03 586604 500 36 226 238 -138.99 ± 13.85 10 175 60 5 0 -315.35 ± 44.57
438174 ncm-dbt-02 587409 500 47 228 225 -131.74 ± 14.03 10 166 69 5 0 -290.66 ± 41.43
438173 ncm-dbt-01 578300 500 39 232 229 -141.44 ± 15.53 17 167 58 8 0 -304.07 ± 45.19
438172 ncm-dbt-05 584076 500 39 217 244 -129.35 ± 13.9 11 159 77 3 0 -280.42 ± 38.93

Commit

Commit ID 16adcb5374a6847b52dd901e183d78c0c8c6cf8a
Author pb00067
Date 2020-12-14 06:48:48 UTC
Merge static history into main history, thus simplifying and reducing the memory footprint. I believe using static diff for better move ordering is more suited for low depths, so restrict writing to low depths. Todo: probably the condition for writing can be simplified LTC: LLR: 2.95 (-2.94,2.94) {-0.75,0.25} Total: 18752 W: 768 L: 705 D: 17279 Ptnml(0-2): 7, 635, 8034, 688, 12 https://tests.stockfishchess.org/tests/view/5fd631791ac169120188859e STC: LLR: 2.95 (-2.94,2.94) {-1.25,0.25} Total: 36504 W: 3380 L: 3313 D: 29811 Ptnml(0-2): 116, 2667, 12645, 2682, 142 https://tests.stockfishchess.org/tests/view/5fd5ed861ac1691201888569 closes https://github.com/official-stockfish/Stockfish/pull/3262 bench: 4018036
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