Dev Builds » 20201129-1551

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 06:51:10 580713 4000 279 1859 1862 -145.13 ± 4.88 103 1398 475 24 0 -329.08 ± 15.63
ncm-dbt-02 06:50:13 586664 4000 311 1868 1821 -142.77 ± 4.97 105 1376 490 29 0 -319.72 ± 15.4
ncm-dbt-03 06:49:34 586103 4000 282 1882 1836 -147.19 ± 4.86 110 1397 476 17 0 -334.1 ± 15.6
ncm-dbt-04 06:50:52 568413 4016 313 1855 1848 -140.61 ± 4.9 83 1416 470 38 1 -320.52 ± 15.73
ncm-dbt-05 06:51:13 582960 3984 320 1840 1824 -139.61 ± 5.07 107 1340 511 34 0 -307.78 ± 15.08
20000 1505 9304 9191 -143.05 ± 2.21 508 6927 2422 142 1 -322.08 ± 6.92

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
439849 ncm-dbt-04 568355 16 2 9 5 -162.87 ± 92.75 1 5 2 0 0 -337.87 ± 515.83
439848 ncm-dbt-05 584958 484 40 226 218 -140.74 ± 15.59 19 152 67 4 0 -294.66 ± 42.02
439847 ncm-dbt-01 584369 500 36 233 231 -144.71 ± 14.59 15 172 58 5 0 -321.19 ± 45.36
439846 ncm-dbt-03 586774 500 32 227 241 -143.07 ± 13.54 12 173 63 2 0 -324.17 ± 43.32
439845 ncm-dbt-02 588174 500 30 227 243 -144.71 ± 14.23 10 185 47 8 0 -336.46 ± 50.04
439844 ncm-dbt-04 570228 500 45 239 216 -142.25 ± 13.75 11 176 59 4 0 -324.17 ± 44.97
439843 ncm-dbt-05 582277 500 36 237 227 -148.02 ± 13.74 13 178 56 3 0 -339.63 ± 46.2
439842 ncm-dbt-01 584411 500 38 229 233 -139.81 ± 13.26 11 170 68 1 0 -315.35 ± 41.44
439841 ncm-dbt-02 587155 500 37 228 235 -139.81 ± 12.67 8 176 65 1 0 -324.17 ± 42.47
439840 ncm-dbt-03 586350 500 28 230 242 -148.85 ± 12.49 9 185 55 1 0 -356.21 ± 46.49
439839 ncm-dbt-04 567720 500 39 229 232 -138.99 ± 14.21 11 174 59 6 0 -312.48 ± 44.93
439838 ncm-dbt-05 579578 500 40 222 238 -132.54 ± 14.01 9 170 65 6 0 -295.94 ± 42.75
439837 ncm-dbt-01 583447 500 38 232 230 -142.25 ± 13.94 12 174 60 4 0 -321.19 ± 44.57
439836 ncm-dbt-02 584748 500 38 240 222 -148.85 ± 13.7 15 173 61 1 0 -336.46 ± 43.96
439835 ncm-dbt-03 585042 500 35 233 232 -145.54 ± 13.45 11 179 57 3 0 -336.46 ± 45.77
439834 ncm-dbt-04 567165 500 35 229 236 -142.25 ± 13.94 11 177 57 5 0 -324.17 ± 45.77
439833 ncm-dbt-05 581943 500 47 226 227 -130.14 ± 13.88 10 163 73 4 0 -285.49 ± 40.16
439832 ncm-dbt-01 576169 500 38 227 235 -138.18 ± 13.12 9 173 66 2 0 -315.35 ± 42.24
439831 ncm-dbt-02 586181 500 41 229 230 -137.37 ± 14.95 17 158 71 4 0 -290.66 ± 40.76
439830 ncm-dbt-03 587409 500 38 236 226 -145.54 ± 14.2 14 174 58 4 0 -327.18 ± 45.37
439829 ncm-dbt-04 568275 500 37 230 233 -141.44 ± 15.37 16 169 57 8 0 -306.84 ± 45.58
439828 ncm-dbt-05 583614 500 35 226 239 -139.81 ± 14.55 14 168 63 5 0 -306.84 ± 43.45
439827 ncm-dbt-01 577520 500 30 243 227 -158.08 ± 13.89 16 184 47 3 0 -370.41 ± 50.67
439826 ncm-dbt-02 585548 500 43 232 225 -138.18 ± 13.32 9 174 64 3 0 -315.35 ± 43.03
439825 ncm-dbt-03 585885 500 44 238 218 -142.25 ± 14.48 17 162 69 2 0 -306.84 ± 41.23
439824 ncm-dbt-04 568593 500 33 222 245 -138.18 ± 13.32 6 183 55 6 0 -324.17 ± 46.56
439823 ncm-dbt-05 581985 500 32 237 231 -151.34 ± 13.99 15 178 54 3 0 -346.12 ± 47.1
439822 ncm-dbt-03 586181 500 34 230 236 -143.89 ± 13.7 13 172 63 2 0 -324.17 ± 43.32
439821 ncm-dbt-01 581860 500 34 229 237 -143.07 ± 12.75 8 181 59 2 0 -336.46 ± 44.87
439820 ncm-dbt-02 588174 500 40 240 220 -147.19 ± 13.96 15 172 61 2 0 -330.23 ± 44.08
439819 ncm-dbt-04 567165 500 52 243 205 -139.81 ± 13.64 11 172 64 3 0 -315.35 ± 43.03
439818 ncm-dbt-05 584748 500 43 240 217 -144.71 ± 14.41 16 168 63 3 0 -318.25 ± 43.39
439817 ncm-dbt-03 587197 500 41 245 214 -150.51 ± 14.59 19 168 61 2 0 -330.23 ± 44.08
439816 ncm-dbt-01 577151 500 29 235 236 -152.18 ± 13.96 15 179 53 3 0 -349.43 ± 47.56
439815 ncm-dbt-02 586689 500 32 239 229 -153.02 ± 14.68 19 172 56 3 0 -339.63 ± 46.2
439814 ncm-dbt-04 568792 500 33 228 239 -143.07 ± 12.95 6 188 51 5 0 -342.85 ± 48.46
439813 ncm-dbt-02 586646 500 50 233 217 -133.34 ± 14.68 12 166 65 7 0 -290.66 ± 42.73
439812 ncm-dbt-03 583992 500 30 243 227 -158.08 ± 13.27 15 184 50 1 0 -374.11 ± 48.94
439811 ncm-dbt-05 584579 500 47 226 227 -130.14 ± 14.4 11 163 70 6 0 -282.94 ± 41.13
439810 ncm-dbt-04 569430 500 37 226 237 -138.18 ± 13.69 10 172 66 1 1 -315.35 ± 42.24
439809 ncm-dbt-01 580779 500 36 231 233 -143.07 ± 14.81 17 165 64 4 0 -309.64 ± 43.08

Commit

Commit ID 045728a7da9dfee1746da0c5b4632a62f68c0d97
Author syzygy1
Date 2020-11-29 15:51:01 UTC
Remove piece lists This patch removes the incrementally updated piece lists from the Position object. This has been tried before but always failed. My reasons for trying again are: * 32-bit systems (including phones) are now much less important than they were some years ago (and are absent from fishtest); * NNUE may have made SF less finely tuned to the order in which moves were generated. STC: LLR: 2.94 (-2.94,2.94) {-1.25,0.25} Total: 55272 W: 5260 L: 5216 D: 44796 Ptnml(0-2): 208, 4147, 18898, 4159, 224 https://tests.stockfishchess.org/tests/view/5fc2986a42a050a89f02c926 LTC: LLR: 2.96 (-2.94,2.94) {-0.75,0.25} Total: 16600 W: 673 L: 608 D: 15319 Ptnml(0-2): 14, 533, 7138, 604, 11 https://tests.stockfishchess.org/tests/view/5fc2f98342a050a89f02c95c closes https://github.com/official-stockfish/Stockfish/pull/3247 Bench: 3940967
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