Dev Builds » 20201225-0921

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 06:51:57 583029 4018 275 1893 1850 -148.3 ± 4.78 96 1452 435 26 0 -344.15 ± 16.36
ncm-dbt-02 06:51:24 586701 3998 304 1851 1843 -141.82 ± 4.93 100 1375 496 28 0 -318.15 ± 15.3
ncm-dbt-03 06:51:03 586256 4000 272 1838 1890 -143.69 ± 4.92 92 1420 450 38 0 -327.94 ± 16.08
ncm-dbt-04 06:51:43 567494 3992 271 1851 1870 -145.45 ± 4.93 103 1403 461 29 0 -330.21 ± 15.88
ncm-dbt-05 06:52:01 582120 3992 292 1849 1851 -143.09 ± 5.05 103 1392 460 41 0 -321.53 ± 15.9
20000 1414 9282 9304 -144.47 ± 2.2 494 7042 2302 162 0 -328.24 ± 7.1

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
446301 ncm-dbt-01 582987 18 1 8 9 -142.54 ± 56.5 0 7 2 0 0 -361.06 ± 503.16
446300 ncm-dbt-05 580655 492 42 231 219 -140.68 ± 14.52 16 159 69 2 0 -303.56 ± 41.22
446299 ncm-dbt-04 566257 492 32 221 239 -140.68 ± 13.58 10 172 61 3 0 -320.93 ± 44.14
446298 ncm-dbt-02 586689 498 39 236 223 -145.37 ± 14.43 15 171 59 4 0 -323.36 ± 44.96
446297 ncm-dbt-03 584243 500 35 225 240 -138.99 ± 14.03 11 173 61 5 0 -312.48 ± 44.19
446296 ncm-dbt-01 580116 500 37 239 224 -148.85 ± 13.9 16 171 62 1 0 -333.32 ± 43.57
446295 ncm-dbt-05 582110 500 28 244 228 -160.64 ± 14.16 18 183 46 3 0 -374.11 ± 51.25
446294 ncm-dbt-02 588260 500 49 228 223 -130.14 ± 15.06 13 161 68 8 0 -277.93 ± 41.74
446293 ncm-dbt-04 568713 500 38 229 233 -139.81 ± 13.07 9 175 64 2 0 -321.19 ± 42.95
446292 ncm-dbt-03 586012 500 45 227 228 -132.54 ± 13.83 9 169 67 5 0 -295.94 ± 42.08
446291 ncm-dbt-01 582235 500 30 237 233 -153.02 ± 11.81 7 194 48 1 0 -381.7 ± 50.02
446290 ncm-dbt-05 580075 500 33 236 231 -149.68 ± 13.86 11 187 46 6 0 -352.8 ± 50.93
446289 ncm-dbt-04 567839 500 38 244 218 -152.18 ± 15.25 19 174 51 6 0 -336.46 ± 48.37
446288 ncm-dbt-02 587919 500 43 240 217 -144.71 ± 13.28 11 177 60 2 0 -333.32 ± 44.47
446287 ncm-dbt-03 586816 500 36 225 239 -138.18 ± 13.12 8 176 63 3 0 -318.25 ± 43.39
446286 ncm-dbt-01 583405 500 38 242 220 -150.51 ± 14.4 16 176 54 4 0 -339.63 ± 47.1
446285 ncm-dbt-05 579702 500 34 229 237 -143.07 ± 15.5 17 169 56 8 0 -309.64 ± 45.98
446284 ncm-dbt-02 585295 500 27 230 243 -149.68 ± 13.27 12 181 55 2 0 -349.43 ± 46.59
446283 ncm-dbt-04 565390 500 27 228 245 -148.02 ± 13.15 12 178 59 1 0 -342.85 ± 44.76
446282 ncm-dbt-01 587452 500 42 230 228 -137.37 ± 13.71 10 172 64 4 0 -309.64 ± 43.08
446281 ncm-dbt-03 586266 500 35 227 238 -140.62 ± 14.35 12 174 58 6 0 -315.35 ± 45.33
446280 ncm-dbt-05 585000 500 46 221 233 -126.97 ± 15.73 17 149 76 8 0 -258.75 ± 39.42
446279 ncm-dbt-04 569111 500 38 226 236 -137.37 ± 14.43 12 170 62 6 0 -304.07 ± 43.81
446278 ncm-dbt-02 586393 500 39 224 237 -134.95 ± 13.96 11 167 68 4 0 -298.62 ± 41.71
446277 ncm-dbt-01 583363 500 32 240 228 -153.86 ± 12.65 11 187 51 1 0 -370.41 ± 48.42
446276 ncm-dbt-03 585970 500 31 241 228 -155.54 ± 13.61 13 188 45 4 0 -370.41 ± 51.77
446275 ncm-dbt-05 582277 500 32 232 236 -147.19 ± 13.58 10 185 50 5 0 -346.12 ± 48.95
446274 ncm-dbt-04 566612 500 35 238 227 -149.68 ± 12.87 9 188 50 3 0 -359.68 ± 49.05
446273 ncm-dbt-03 586012 500 36 228 236 -140.62 ± 13.8 9 180 55 6 0 -324.17 ± 46.56
446272 ncm-dbt-01 583489 500 31 239 230 -153.86 ± 12.87 12 185 52 1 0 -366.78 ± 47.92
446271 ncm-dbt-02 585548 500 36 225 239 -138.18 ± 14.59 13 169 62 6 0 -304.07 ± 43.81
446270 ncm-dbt-05 583279 500 35 226 239 -139.81 ± 13.07 6 184 55 5 0 -330.23 ± 46.62
446269 ncm-dbt-01 582027 500 34 228 238 -142.25 ± 14.12 11 178 55 6 0 -324.17 ± 46.56
446268 ncm-dbt-02 587452 500 31 245 224 -158.93 ± 13.01 15 184 51 0 0 -377.86 ± 48.25
446267 ncm-dbt-04 568474 500 37 225 238 -137.37 ± 14.6 13 168 63 6 0 -301.33 ± 43.45
446266 ncm-dbt-03 587240 500 27 231 242 -150.51 ± 14.95 17 176 51 6 0 -336.46 ± 48.37
446265 ncm-dbt-02 586054 500 40 223 237 -133.34 ± 13.45 10 165 73 2 0 -295.94 ± 39.99
446264 ncm-dbt-04 567561 500 26 240 234 -158.93 ± 14.24 19 178 51 2 0 -363.2 ± 48.51
446263 ncm-dbt-05 583866 500 42 230 228 -137.37 ± 13.34 8 176 62 4 0 -315.35 ± 43.81
446262 ncm-dbt-03 587494 500 27 234 239 -153.02 ± 13.53 13 184 50 3 0 -359.68 ± 49.05
446261 ncm-dbt-01 582193 500 30 230 240 -147.19 ± 14.7 13 182 47 8 0 -336.46 ± 50.04

Commit

Commit ID 51deae899814bbbfd9db5686b824f23105ca8a39
Author Vizvezdenec
Date 2020-12-25 09:21:00 UTC
Do more LMR for captures This patch enables LMR for all captures at allNodes that were not in PV. Currently we do LMR for all captures at cutNodes so this is an expansion of this logic: now we do LMR for all captures almost at all non-pv nodes, excluding only allNodes that were in PV. passed STC https://tests.stockfishchess.org/tests/view/5fe50b9d3932f79192d3973c LLR: 2.95 (-2.94,2.94) {-0.25,1.25} Total: 83128 W: 7606 L: 7368 D: 68154 Ptnml(0-2): 292, 5905, 28939, 6129, 299 passed LTC https://tests.stockfishchess.org/tests/view/5fe552e43932f79192d39744 LLR: 2.92 (-2.94,2.94) {0.25,1.25} Total: 13968 W: 568 L: 466 D: 12934 Ptnml(0-2): 5, 418, 6043, 506, 12 closes https://github.com/official-stockfish/Stockfish/pull/3273 Bench: 4194835
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