Dev Builds » 20201205-1548

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 06:50:58 585199 4008 282 1850 1876 -143.57 ± 4.98 106 1387 480 31 0 -322.33 ± 15.56
ncm-dbt-02 06:50:18 585026 4000 298 1856 1846 -142.87 ± 4.78 89 1402 487 22 0 -326.04 ± 15.43
ncm-dbt-03 06:50:05 584746 4000 297 1856 1847 -142.97 ± 5.08 115 1362 490 33 0 -316.8 ± 15.4
ncm-dbt-04 06:49:22 567463 4000 292 1858 1850 -143.69 ± 5.05 110 1380 477 32 1 -321.56 ± 15.61
ncm-dbt-05 06:51:26 580734 3992 271 1861 1860 -146.49 ± 5.01 117 1382 471 26 0 -328.68 ± 15.71
20000 1440 9281 9279 -143.91 ± 2.23 537 6913 2405 144 1 -323.05 ± 6.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
458198 ncm-dbt-01 583196 8 0 4 4 -190.56 ± 189.63 1 2 1 0 0 -337.69 ± 541.44
458197 ncm-dbt-05 582193 492 27 230 235 -152.43 ± 14.31 18 168 59 1 0 -339.66 ± 44.74
458196 ncm-dbt-02 583614 500 43 232 225 -138.18 ± 13.87 11 171 64 4 0 -309.64 ± 43.08
458195 ncm-dbt-01 586901 500 38 233 229 -143.07 ± 13.91 12 175 59 4 0 -324.17 ± 44.97
458194 ncm-dbt-03 583614 500 26 241 233 -159.78 ± 14.4 20 177 51 2 0 -363.2 ± 48.51
458193 ncm-dbt-04 567047 500 38 230 232 -140.62 ± 14.7 12 176 54 8 0 -315.35 ± 46.8
458192 ncm-dbt-05 580406 500 21 238 241 -161.49 ± 13.71 17 185 46 2 0 -381.7 ± 51.25
458191 ncm-dbt-02 581818 500 39 238 223 -146.36 ± 13.41 12 177 59 2 0 -336.46 ± 44.87
458190 ncm-dbt-03 587155 500 35 227 238 -140.62 ± 13.62 10 176 60 4 0 -321.19 ± 44.57
458189 ncm-dbt-01 584874 500 33 231 236 -145.54 ± 13.05 11 177 61 1 0 -336.46 ± 43.96
458188 ncm-dbt-04 566809 500 30 233 237 -149.68 ± 12.66 11 181 58 0 0 -352.79 ± 45.01
458187 ncm-dbt-03 586223 500 46 235 219 -138.18 ± 15.26 17 161 66 6 0 -293.29 ± 42.41
458186 ncm-dbt-05 581236 500 38 227 235 -138.18 ± 13.5 11 169 68 2 0 -309.64 ± 41.56
458185 ncm-dbt-02 584285 500 37 234 229 -144.71 ± 12.68 7 186 54 3 0 -346.12 ± 47.1
458184 ncm-dbt-01 585295 500 41 232 227 -139.81 ± 15.23 18 160 67 5 0 -295.94 ± 42.08
458183 ncm-dbt-04 566020 500 52 226 222 -126.17 ± 14.79 12 157 74 7 0 -268.17 ± 39.97
458182 ncm-dbt-03 581860 500 43 234 223 -139.81 ± 15.56 18 162 63 7 0 -295.94 ± 43.42
458181 ncm-dbt-02 585759 500 26 224 250 -145.54 ± 13.45 9 185 51 5 0 -342.85 ± 48.46
458180 ncm-dbt-05 584874 500 28 239 233 -156.39 ± 13.57 16 180 53 1 0 -363.2 ± 47.43
458179 ncm-dbt-04 568752 500 39 232 229 -141.44 ± 14.68 18 159 71 2 0 -301.33 ± 40.6
458178 ncm-dbt-01 584327 500 42 228 230 -135.76 ± 14.29 12 167 66 5 0 -298.62 ± 42.41
458177 ncm-dbt-03 586054 500 41 222 237 -131.74 ± 13.3 9 165 74 2 0 -293.29 ± 39.69
458176 ncm-dbt-02 584201 500 37 233 230 -143.89 ± 13.31 10 179 58 3 0 -333.32 ± 45.35
458175 ncm-dbt-05 573446 500 42 239 219 -144.71 ± 13.86 15 168 66 1 0 -321.19 ± 42.12
458174 ncm-dbt-04 566414 500 44 235 221 -139.81 ± 14.01 11 174 60 5 0 -315.35 ± 44.57
458173 ncm-dbt-01 586012 500 27 237 236 -155.54 ± 12.99 12 188 48 2 0 -374.11 ± 50.1
458172 ncm-dbt-02 586435 500 46 231 223 -134.95 ± 13.59 11 165 72 2 0 -298.62 ± 40.29
458171 ncm-dbt-03 585211 500 33 232 235 -146.36 ± 13.02 10 181 57 2 0 -342.85 ± 45.71
458170 ncm-dbt-05 582152 500 39 224 237 -134.95 ± 14.31 10 172 61 7 0 -301.33 ± 44.13
458169 ncm-dbt-01 583531 500 43 227 230 -134.15 ± 14.67 11 170 61 8 0 -295.94 ± 44.08
458168 ncm-dbt-04 568355 500 29 232 239 -149.68 ± 13.67 14 177 57 2 0 -342.85 ± 45.71
458167 ncm-dbt-03 584201 500 32 235 233 -149.68 ± 14.97 19 169 58 4 0 -327.18 ± 45.37
458166 ncm-dbt-04 568713 500 28 230 242 -148.85 ± 14.64 16 175 54 5 0 -333.32 ± 47.06
458165 ncm-dbt-02 588302 500 31 222 247 -139.81 ± 12.87 8 177 63 2 0 -324.17 ± 43.32
458164 ncm-dbt-01 586223 500 28 224 248 -143.89 ± 13.7 11 178 57 4 0 -330.23 ± 45.79
458163 ncm-dbt-05 582235 500 34 230 236 -143.89 ± 14.61 15 171 59 5 0 -318.25 ± 44.96
458162 ncm-dbt-03 583656 500 41 230 229 -138.18 ± 14.41 12 171 61 6 0 -306.84 ± 44.17
458161 ncm-dbt-04 567601 500 32 240 228 -153.86 ± 14.65 16 181 49 3 1 -356.21 ± 49.54
458160 ncm-dbt-05 579331 500 42 234 224 -140.62 ± 15.05 15 169 59 7 0 -306.84 ± 44.88
458159 ncm-dbt-01 586435 500 30 234 236 -150.51 ± 14.4 18 170 60 2 0 -333.32 ± 44.47
458158 ncm-dbt-02 585801 500 39 242 219 -149.68 ± 14.8 21 162 66 1 0 -321.19 ± 42.12

Commit

Commit ID be7a03a957d5c2590a329f8f47acea8af2305adf
Author Vizvezdenec
Date 2020-12-05 15:48:33 UTC
Introduce static history The idea of this patch can be described as following: we update static history stats based on comparison of the static evaluations of the position before and after the move. If the move increases static evaluation it's assigned positive bonus, if it decreases static evaluation it's assigned negative bonus. These stats are used in movepicker to sort quiet moves. passed STC https://tests.stockfishchess.org/tests/view/5fca4c0842a050a89f02cd66 LLR: 3.00 (-2.94,2.94) {-0.25,1.25} Total: 78152 W: 7409 L: 7171 D: 63572 Ptnml(0-2): 303, 5695, 26873, 5871, 334 passed LTC https://tests.stockfishchess.org/tests/view/5fca6be442a050a89f02cd75 LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 40240 W: 1602 L: 1441 D: 37197 Ptnml(0-2): 19, 1306, 17305, 1475, 15 closes https://github.com/official-stockfish/Stockfish/pull/3253 bench 3845156
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