Dev Builds » 20240126-2015

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 11:48:53 1109795 4000 1733 294 1973 +130.84 +/- 4.74 1 38 533 1377 51 +297.61 +/- 14.76
ncm-dbt-02 11:45:40 1200266 3982 1768 316 1898 +132.8 +/- 4.87 1 40 521 1364 65 +299.39 +/- 14.94
ncm-dbt-03 11:49:55 1199840 4000 1766 291 1943 +134.45 +/- 4.59 0 33 504 1418 45 +311.77 +/- 15.18
ncm-dbt-04 11:49:19 1186795 4016 1735 290 1991 +130.87 +/- 4.72 0 37 543 1374 54 +296.43 +/- 14.62
ncm-dbt-06 11:49:20 1187260 4002 1744 262 1996 +135.08 +/- 4.73 1 29 521 1387 63 +307.99 +/- 14.92
20000 8746 1453 9801 +132.8 +/- 2.12 3 177 2622 6920 278 +302.56 +/- 6.65

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
325871 ncm-dbt-06 1188941 2 0 0 2 0.0 +/- 34.02 0 0 1 0 0 0.0 +/- 30.47
325870 ncm-dbt-01 1094210 0 0 0 0 -0.0 +/- 1199.83 0 0 0 0 0 -0.0 +/- 1199.83
325869 ncm-dbt-04 1188972 16 7 1 8 +136.86 +/- 96.14 0 0 3 4 1 +254.61 +/- 287.37
325868 ncm-dbt-02 1201617 482 215 34 233 +137.18 +/- 15.54 1 7 55 166 12 +305.03 +/- 46.4
325867 ncm-dbt-03 1199217 500 225 35 240 +138.99 +/- 12.9 0 4 58 182 6 +327.18 +/- 45.37
325866 ncm-dbt-06 1191567 500 217 41 242 +127.76 +/- 14.93 1 8 64 168 9 +282.94 +/- 42.98
325865 ncm-dbt-01 1106556 500 209 41 250 +121.45 +/- 14.01 0 10 66 170 4 +273.0 +/- 42.27
325864 ncm-dbt-04 1189389 500 231 38 231 +141.44 +/- 13.4 0 3 61 176 10 +324.17 +/- 44.15
325863 ncm-dbt-02 1201781 500 230 43 227 +136.56 +/- 14.1 0 5 64 170 11 +304.07 +/- 43.1
325862 ncm-dbt-03 1199884 500 218 44 238 +126.17 +/- 13.77 0 8 65 172 5 +285.49 +/- 42.7
325861 ncm-dbt-06 1187219 500 220 44 236 +127.76 +/- 12.26 0 2 73 172 3 +295.94 +/- 39.99
325860 ncm-dbt-01 1095985 500 214 44 242 +123.02 +/- 13.65 0 6 74 164 6 +273.0 +/- 39.95
325859 ncm-dbt-04 1185709 500 211 44 245 +120.67 +/- 12.78 0 4 78 165 3 +273.0 +/- 38.74
325858 ncm-dbt-02 1198509 500 231 42 227 +138.18 +/- 14.23 0 5 63 170 12 +306.84 +/- 43.45
325857 ncm-dbt-03 1203781 500 212 43 245 +122.24 +/- 12.76 0 4 76 167 3 +277.93 +/- 39.29
325856 ncm-dbt-01 1109791 500 224 39 237 +134.95 +/- 13.41 0 3 68 170 9 +304.07 +/- 41.65
325855 ncm-dbt-06 1181728 500 214 35 251 +130.14 +/- 12.59 0 2 72 171 5 +298.62 +/- 40.29
325854 ncm-dbt-04 1189623 500 218 26 256 +140.62 +/- 13.62 0 6 54 182 8 +327.18 +/- 47.0
325853 ncm-dbt-02 1197970 500 211 41 248 +123.02 +/- 12.74 0 4 75 168 3 +280.42 +/- 39.57
325852 ncm-dbt-03 1197627 500 214 25 261 +138.18 +/- 12.93 0 2 65 175 8 +318.25 +/- 42.59
325851 ncm-dbt-01 1087966 500 213 38 249 +126.97 +/- 13.41 0 5 71 168 6 +285.49 +/- 40.81
325850 ncm-dbt-06 1190719 500 212 28 260 +134.15 +/- 12.86 0 2 69 172 7 +306.84 +/- 41.23
325849 ncm-dbt-04 1188746 500 210 42 248 +121.45 +/- 13.66 0 8 70 168 4 +273.0 +/- 41.13
325848 ncm-dbt-02 1199402 500 223 46 231 +128.55 +/- 12.63 0 3 71 172 4 +295.94 +/- 40.69
325847 ncm-dbt-01 1107326 500 226 35 239 +139.81 +/- 14.01 1 3 60 176 10 +321.19 +/- 44.57
325846 ncm-dbt-03 1197659 500 225 39 236 +135.76 +/- 12.81 0 4 61 180 5 +318.25 +/- 44.18
325845 ncm-dbt-06 1187875 500 219 27 254 +140.62 +/- 13.04 0 3 60 179 8 +327.18 +/- 44.54
325844 ncm-dbt-04 1189068 500 215 37 248 +129.35 +/- 13.72 0 5 70 167 8 +288.06 +/- 41.11
325843 ncm-dbt-02 1202651 500 218 38 244 +130.94 +/- 13.87 0 5 69 167 9 +290.66 +/- 41.43
325842 ncm-dbt-03 1201346 500 237 33 230 +150.51 +/- 13.64 0 5 47 187 11 +356.21 +/- 50.52
325841 ncm-dbt-01 1124288 500 224 27 249 +144.71 +/- 13.08 0 2 59 179 10 +336.46 +/- 44.87
325840 ncm-dbt-04 1186985 500 218 32 250 +135.76 +/- 12.42 0 2 65 178 5 +318.25 +/- 42.59
325839 ncm-dbt-06 1187951 500 221 26 253 +143.07 +/- 12.54 0 1 61 180 8 +336.46 +/- 43.96
325838 ncm-dbt-02 1197603 500 215 38 247 +128.55 +/- 14.08 0 7 67 168 8 +285.49 +/- 42.08
325837 ncm-dbt-03 1198912 500 220 43 237 +128.55 +/- 12.24 0 3 69 176 2 +301.33 +/- 41.33
325836 ncm-dbt-01 1132283 500 205 25 270 +130.94 +/- 12.56 0 4 65 178 3 +306.84 +/- 42.73
325835 ncm-dbt-06 1185873 500 221 38 241 +133.34 +/- 13.99 0 5 67 168 10 +295.94 +/- 42.08
325834 ncm-dbt-04 1187024 500 211 35 254 +127.76 +/- 13.57 0 6 68 170 6 +288.06 +/- 41.76
325833 ncm-dbt-02 1202599 500 225 34 241 +139.81 +/- 12.87 0 4 57 183 6 +330.23 +/- 45.79
325832 ncm-dbt-04 1175647 500 214 35 251 +130.14 +/- 13.52 0 3 74 164 9 +288.06 +/- 39.79
325831 ncm-dbt-06 1183469 500 220 23 257 +144.71 +/- 14.41 0 6 54 177 13 +327.18 +/- 47.0
325830 ncm-dbt-01 1129752 500 218 45 237 +125.38 +/- 12.89 0 5 70 172 3 +288.06 +/- 41.11
325829 ncm-dbt-03 1200297 500 215 29 256 +135.76 +/- 12.62 0 3 63 179 5 +318.25 +/- 43.39

Commit

Commit ID fcbb02ffdeebb65c970ecf5aebaa3078cdf8f374
Author Viren6
Date 2024-01-26 20:15:07 UTC
Use ttPv in depth condition of singular extensions This replaces the PvNode condition and tte Pv call previously with using the precomputed ttPv, and also removes the multiplier of 2. This new depth condition occurs with approximately equal frequency (47%) to the old depth condition (measured when the other conditions in the if are true), so non-linear scaling behaviour isn't expected. Passed Non-Reg STC: https://tests.stockfishchess.org/tests/view/65b0e132c865510db026da27 LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 243232 W: 62432 L: 62437 D: 118363 Ptnml(0-2): 910, 28937, 61900, 28986, 883 Passed Non-Reg LTC: https://tests.stockfishchess.org/tests/view/65b2053bc865510db026eea1 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 190596 W: 47666 L: 47618 D: 95312 Ptnml(0-2): 115, 21710, 51596, 21766, 111 closes https://github.com/official-stockfish/Stockfish/pull/5015 Bench: 1492957
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