Dev Builds » 20201129-1538

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 06:50:31 583196 4000 279 1836 1885 -142.77 ± 5.04 110 1370 487 33 0 -317.89 ± 15.45
ncm-dbt-02 06:50:17 586045 4000 273 1859 1868 -145.75 ± 4.72 88 1431 460 21 0 -337.25 ± 15.89
ncm-dbt-03 06:51:42 585594 4008 303 1842 1863 -140.61 ± 5.06 108 1359 501 36 0 -311.11 ± 15.23
ncm-dbt-04 06:50:25 568098 4000 303 1858 1839 -142.56 ± 5.01 105 1378 485 31 1 -319.35 ± 15.48
ncm-dbt-05 06:52:20 583101 3992 299 1841 1852 -141.55 ± 4.87 86 1404 472 34 0 -322.27 ± 15.7
20000 1457 9236 9307 -142.64 ± 2.21 497 6942 2405 155 1 -321.41 ± 6.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
442880 ncm-dbt-03 586901 8 1 5 2 -190.56 ± 189.63 1 2 1 0 0 -337.69 ± 541.44
442879 ncm-dbt-05 580240 492 30 214 248 -136.56 ± 14.79 12 167 60 7 0 -300.78 ± 44.5
442878 ncm-dbt-01 581485 500 33 231 236 -145.54 ± 14.02 15 170 63 2 0 -324.17 ± 43.32
442877 ncm-dbt-04 566651 500 54 231 215 -128.55 ± 14.26 11 160 74 5 0 -277.93 ± 39.92
442876 ncm-dbt-03 582778 500 31 238 231 -153.02 ± 15.22 21 169 56 4 0 -333.32 ± 46.21
442875 ncm-dbt-02 587494 500 36 227 237 -139.81 ± 12.87 7 180 60 3 0 -327.18 ± 44.54
442874 ncm-dbt-05 582318 500 37 243 220 -152.18 ± 13.56 12 186 48 4 0 -359.68 ± 50.07
442873 ncm-dbt-01 583572 500 41 227 232 -135.76 ± 13.94 11 168 67 4 0 -301.33 ± 42.04
442872 ncm-dbt-03 583112 500 36 223 241 -136.56 ± 13.55 6 182 55 7 0 -318.25 ± 46.48
442871 ncm-dbt-04 568832 500 35 215 250 -130.94 ± 13.87 6 176 60 8 0 -298.62 ± 44.44
442870 ncm-dbt-02 587409 500 30 231 239 -148.01 ± 13.54 15 171 64 0 0 -333.32 ± 42.66
442869 ncm-dbt-05 581902 500 44 225 231 -131.74 ± 13.12 6 173 67 4 0 -301.33 ± 42.04
442868 ncm-dbt-01 581319 500 37 226 237 -138.18 ± 14.23 12 170 63 5 0 -306.84 ± 43.45
442867 ncm-dbt-04 567126 500 27 240 233 -158.08 ± 14.28 20 174 55 1 0 -356.21 ± 46.49
442866 ncm-dbt-02 584453 500 32 228 240 -143.89 ± 14.61 15 171 59 5 0 -318.25 ± 44.96
442865 ncm-dbt-03 586731 500 43 234 223 -139.81 ± 14.55 15 165 66 4 0 -304.07 ± 42.38
442864 ncm-dbt-01 583363 500 40 229 231 -138.18 ± 14.41 13 168 64 5 0 -304.07 ± 43.1
442863 ncm-dbt-05 582694 500 34 223 243 -138.18 ± 12.73 5 183 58 4 0 -327.18 ± 45.37
442862 ncm-dbt-04 569909 500 36 239 225 -149.68 ± 13.27 13 178 58 1 0 -346.12 ± 45.18
442861 ncm-dbt-03 584874 500 46 233 221 -136.56 ± 14.96 16 160 69 5 0 -290.66 ± 41.43
442860 ncm-dbt-02 585970 500 27 220 253 -141.44 ± 12.2 3 191 52 4 0 -346.12 ± 48.03
442859 ncm-dbt-05 586139 500 41 232 227 -139.81 ± 13.45 11 171 66 2 0 -315.35 ± 42.24
442858 ncm-dbt-01 584958 500 26 227 247 -148.02 ± 15.2 18 171 55 6 0 -324.17 ± 46.56
442857 ncm-dbt-04 569071 500 28 232 240 -150.51 ± 14.4 16 176 54 4 0 -339.63 ± 47.1
442856 ncm-dbt-03 586223 500 35 224 241 -138.18 ± 14.06 12 169 65 4 0 -306.84 ± 42.73
442855 ncm-dbt-02 584537 500 37 234 229 -144.71 ± 12.47 7 185 56 2 0 -346.12 ± 46.15
442854 ncm-dbt-05 585295 500 31 234 235 -149.68 ± 13.27 12 181 55 2 0 -349.43 ± 46.59
442853 ncm-dbt-01 586604 500 35 241 224 -152.18 ± 14.71 19 171 57 3 0 -336.46 ± 45.77
442852 ncm-dbt-03 586012 500 39 219 242 -130.94 ± 13.32 8 167 72 3 0 -293.29 ± 40.39
442851 ncm-dbt-04 567878 500 50 233 217 -133.34 ± 14.34 14 158 75 3 0 -285.49 ± 39.5
442850 ncm-dbt-02 586223 500 40 246 214 -152.18 ± 13.16 12 184 52 2 0 -359.68 ± 48.01
442849 ncm-dbt-01 583656 500 30 229 241 -146.36 ± 13.8 12 179 55 4 0 -336.46 ± 46.65
442848 ncm-dbt-05 583782 500 35 236 229 -148.02 ± 13.54 12 180 55 3 0 -342.85 ± 46.64
442847 ncm-dbt-03 587155 500 41 224 235 -133.34 ± 15.18 14 163 65 8 0 -285.49 ± 42.7
442846 ncm-dbt-04 568514 500 36 233 231 -144.71 ± 14.77 14 176 53 7 0 -324.17 ± 47.35
442845 ncm-dbt-02 586350 500 26 228 246 -148.85 ± 13.9 14 177 56 3 0 -339.63 ± 46.2
442844 ncm-dbt-01 580613 500 37 226 237 -138.18 ± 13.69 10 173 63 4 0 -312.48 ± 43.44
442843 ncm-dbt-05 582444 500 47 234 219 -136.56 ± 15.46 16 163 63 8 0 -290.66 ± 43.37
442842 ncm-dbt-03 586562 500 31 242 227 -156.39 ± 13.36 15 182 52 1 0 -366.78 ± 47.92
442841 ncm-dbt-04 566809 500 37 235 228 -145.54 ± 13.83 11 180 56 2 1 -339.63 ± 46.2
442840 ncm-dbt-02 585928 500 45 245 210 -147.19 ± 13.96 15 172 61 2 0 -330.23 ± 44.08

Commit

Commit ID d6d6972a66cb2fb599748bae1f14d32e6c42fc1e
Author Lolligerhans
Date 2020-11-29 15:38:03 UTC
Refine rook penalty on closed files +-----------------+ | . . . . . . . . | All files are closed. Some files are | . . . . . o o . | more valuable for rooks, because | . . . . o . . o | they might open in the future. | . . . o x . . x | | o . o x . x x . | | x o x . . . . . | x our pawns | . x . . . . . . | o their pawns | . . . . . . . . | ^ rooks are scored higher on these files +-----------------+ ^ ^ Files containing none of our own pawns are open or half-open (otherwise they are closed). Rooks on (half-)open files recieve a bonus for the future potential to act along all ranks. This commit refines the (relative) penalty of rooks on closed files. Files that contain one of our blocked pawns are considered less likely to open in the future; rooks on these files are now penalized stronger. This bonus does not generally correlate with mobility. If the condition is sufficiently refined in the future, it may be beneficial to adjust or override mobility scores in some cases. LTC LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 494384 W: 71565 L: 70231 D: 352588 Ptnml(0-2): 3907, 48050, 142118, 49036, 4081 https://tests.stockfishchess.org/tests/view/5fb9312e67cbf42301d6afb9 LTC (non-regression w/ book noob_3moves.epd) LLR: 2.95 (-2.94,2.94) {-0.75,0.25} Total: 208520 W: 27044 L: 26937 D: 154539 Ptnml(0-2): 1557, 19850, 61391, 19853, 1609 https://tests.stockfishchess.org/tests/view/5fc01ced67cbf42301d6b3df STC LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 98392 W: 20269 L: 19868 D: 58255 Ptnml(0-2): 1804, 11297, 22589, 11706, 1800 https://tests.stockfishchess.org/tests/view/5fb7f88a67cbf42301d6af10 closes https://github.com/official-stockfish/Stockfish/pull/3242 Bench: 3682630
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