Dev Builds » 20200808-0635

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 06:32:58 583476 3980 77 2520 1383 -248.43 ± 6.47 555 1334 100 1 0 -632.0 ± 34.46
ncm-dbt-02 06:30:46 586013 4000 63 2528 1409 -249.78 ± 6.48 563 1341 94 2 0 -640.02 ± 35.57
ncm-dbt-03 06:33:07 585229 4014 70 2555 1389 -251.38 ± 6.55 578 1330 98 1 0 -637.05 ± 34.82
ncm-dbt-04 06:32:55 568023 4004 52 2575 1377 -257.66 ± 6.5 594 1335 73 0 0 -692.47 ± 40.53
ncm-dbt-05 06:33:19 582298 4002 70 2577 1355 -255.55 ± 6.7 602 1304 94 1 0 -643.78 ± 35.57
20000 332 12755 6913 -252.54 ± 2.93 2892 6644 459 5 0 -647.82 ± 15.93

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
462094 ncm-dbt-03 584369 14 0 7 7 -190.68 ± 7.94 0 7 0 0 0 -1199.83 ± 201.74
462093 ncm-dbt-01 584034 80 2 48 30 -227.52 ± 38.7 8 30 2 0 0 -636.25 ± 359.1
462092 ncm-dbt-04 570188 92 1 59 32 -257.81 ± 44.62 14 30 2 0 0 -661.11 ± 346.43
462091 ncm-dbt-05 583656 94 1 59 34 -250.18 ± 38.12 12 34 1 0 0 -787.05 ± 301.86
462090 ncm-dbt-02 587155 500 12 313 175 -241.91 ± 18.24 67 167 16 0 0 -592.27 ± 92.24
462089 ncm-dbt-03 586350 500 6 324 170 -261.07 ± 18.26 75 168 7 0 0 -739.05 ± 163.27
462088 ncm-dbt-05 583740 500 11 321 168 -251.89 ± 19.02 74 162 14 0 0 -616.18 ± 100.06
462087 ncm-dbt-01 578342 500 8 315 177 -248.52 ± 18.33 70 167 13 0 0 -629.41 ± 104.8
462086 ncm-dbt-04 562184 500 7 329 164 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53
462085 ncm-dbt-02 586774 500 15 295 190 -219.87 ± 16.67 51 179 19 1 0 -543.25 ± 83.19
462084 ncm-dbt-03 581527 500 10 321 169 -253.02 ± 19.17 75 161 14 0 0 -616.18 ± 100.06
462083 ncm-dbt-05 583028 500 11 318 171 -248.52 ± 18.59 71 165 14 0 0 -616.18 ± 100.06
462082 ncm-dbt-04 567799 500 6 334 160 -272.99 ± 19.72 85 158 7 0 0 -739.05 ± 163.27
462081 ncm-dbt-01 582694 500 6 329 165 -266.96 ± 18.69 79 165 6 0 0 -766.17 ± 188.02
462080 ncm-dbt-02 586774 500 8 320 172 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
462079 ncm-dbt-03 584201 500 6 335 159 -274.22 ± 21.0 90 149 11 0 0 -659.13 ± 116.77
462078 ncm-dbt-05 572517 500 4 329 167 -269.36 ± 19.85 84 157 9 0 0 -694.7 ± 134.18
462077 ncm-dbt-01 583950 500 9 332 159 -266.96 ± 20.12 84 155 11 0 0 -659.13 ± 116.77
462076 ncm-dbt-04 569151 500 4 333 163 -274.22 ± 19.57 85 159 6 0 0 -766.17 ± 188.02
462075 ncm-dbt-02 586393 500 4 315 181 -253.02 ± 19.42 76 159 15 0 0 -603.84 ± 95.91
462074 ncm-dbt-01 584369 400 9 250 141 -242.18 ± 19.79 52 137 11 0 0 -619.39 ± 116.46
462073 ncm-dbt-03 587367 500 10 330 160 -263.41 ± 19.68 81 158 11 0 0 -659.13 ± 116.77
462072 ncm-dbt-04 569310 412 6 260 146 -249.92 ± 20.15 58 138 10 0 0 -641.66 ± 124.27
462071 ncm-dbt-05 584243 408 5 263 140 -258.95 ± 20.81 62 134 8 0 0 -679.54 ± 146.14
462070 ncm-dbt-01 583740 500 8 308 184 -240.82 ± 17.32 63 174 13 0 0 -629.41 ± 104.8
462069 ncm-dbt-02 584916 500 3 326 171 -266.96 ± 18.4 78 167 5 0 0 -798.18 ± 231.48
462068 ncm-dbt-03 586308 500 11 304 185 -233.32 ± 16.83 58 177 15 0 0 -603.84 ± 95.91
462067 ncm-dbt-04 567601 500 8 314 178 -247.41 ± 17.65 67 172 11 0 0 -659.13 ± 116.77
462066 ncm-dbt-05 582068 500 7 325 168 -261.07 ± 19.92 80 159 10 1 0 -643.7 ± 122.54
462065 ncm-dbt-01 583992 500 8 327 165 -262.24 ± 20.07 81 158 10 1 0 -643.7 ± 122.54
462064 ncm-dbt-02 585801 500 8 329 163 -264.59 ± 19.27 80 161 9 0 0 -694.7 ± 134.18
462063 ncm-dbt-04 568593 500 6 311 183 -246.3 ± 16.96 64 177 9 0 0 -694.7 ± 134.18
462062 ncm-dbt-03 585632 500 8 315 177 -248.52 ± 17.79 68 171 11 0 0 -659.13 ± 116.77
462061 ncm-dbt-05 584706 500 8 330 162 -265.77 ± 19.41 81 160 9 0 0 -694.7 ± 134.18
462060 ncm-dbt-02 585379 500 7 315 178 -249.64 ± 17.67 67 175 7 1 0 -694.74 ± 156.93
462059 ncm-dbt-01 584579 500 16 306 178 -230.16 ± 17.4 59 172 19 0 0 -561.34 ± 83.33
462058 ncm-dbt-04 569031 500 7 326 167 -262.24 ± 18.7 77 165 8 0 0 -715.51 ± 146.53
462057 ncm-dbt-03 585379 500 14 308 178 -234.38 ± 18.21 63 169 17 1 0 -561.36 ± 88.68
462056 ncm-dbt-05 582945 500 14 310 176 -236.51 ± 18.01 64 168 18 0 0 -571.09 ± 86.01
462055 ncm-dbt-02 584916 500 6 315 179 -250.76 ± 17.81 69 171 10 0 0 -676.04 ± 124.55
462054 ncm-dbt-04 568355 500 7 309 184 -243.0 ± 17.34 64 174 12 0 0 -643.67 ± 110.29
462053 ncm-dbt-01 585590 500 11 305 184 -234.38 ± 16.97 59 176 15 0 0 -603.84 ± 95.91
462052 ncm-dbt-05 583782 500 9 322 169 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
462051 ncm-dbt-03 585928 500 5 311 184 -247.41 ± 17.92 68 170 12 0 0 -643.67 ± 110.29

Commit

Commit ID 910f779eb1f432c3f90fc19c7824840e02cac837
Author Vizvezdenec
Date 2020-08-08 06:35:47 UTC
Do more futility pruning for parent nodes. This patch increases LMRdepth threshold for futility pruning at parent nodes so it can apply more often. With radical change to evaluation approach it seems that search is really far from optimal state, especially it parts that use static evaluation of position. passed STC https://tests.stockfishchess.org/tests/view/5f2da75661e3b6af64881fd0 LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 8744 W: 1305 L: 1156 D: 6283 Ptnml(0-2): 75, 789, 2500, 928, 80 passed LTC https://tests.stockfishchess.org/tests/view/5f2dcb2a61e3b6af64881ff3 LLR: 2.98 (-2.94,2.94) {0.25,1.75} Total: 17728 W: 1256 L: 1117 D: 15355 Ptnml(0-2): 22, 961, 6774, 1070, 37 Bench: 4067325
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