Dev Builds » 20190101-1235

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 08:36:46 1966905 3335 1872 69 1394 +210.21 +/- 8.97
ncm-et-4 08:36:52 1954108 3294 1851 75 1368 +209.49 +/- 9.07
ncm-et-9 08:36:41 1973589 3335 1884 71 1380 +211.69 +/- 9.03
ncm-et-10 08:36:50 1965576 3348 1890 67 1391 +212.12 +/- 8.98
ncm-et-13 08:36:58 1977212 3349 1919 61 1369 +217.24 +/- 9.05
ncm-et-15 08:37:01 1978324 3339 1916 70 1353 +216.28 +/- 9.13
20000 11332 413 8255 +212.84 +/- 3.69

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
64737 ncm-et-4 2019-01-03 01:43 00:46:20 1944098 294 153 5 136 +192.43 +/- 28.46
64736 ncm-et-3 2019-01-03 01:38 00:51:59 1969716 335 188 10 137 +205.69 +/- 28.93
64735 ncm-et-9 2019-01-03 01:37 00:52:11 1974059 335 204 6 125 +236.0 +/- 30.28
64734 ncm-et-15 2019-01-03 01:37 00:52:53 1968014 339 189 2 148 +215.66 +/- 27.17
64733 ncm-et-13 2019-01-03 01:36 00:53:59 1970804 349 211 3 135 +238.65 +/- 28.85
64732 ncm-et-10 2019-01-03 01:35 00:54:41 1963692 348 172 9 167 +176.5 +/- 25.72
64731 ncm-et-4 2019-01-03 00:25 01:17:13 1966767 500 289 6 205 +222.92 +/- 23.34
64730 ncm-et-3 2019-01-03 00:19 01:17:23 1964147 500 276 12 212 +204.07 +/- 23.08
64729 ncm-et-9 2019-01-03 00:19 01:17:13 1974407 500 286 7 207 +218.86 +/- 23.24
64728 ncm-et-13 2019-01-03 00:19 01:15:57 1973282 500 282 15 203 +206.98 +/- 23.74
64727 ncm-et-15 2019-01-03 00:18 01:17:25 1972979 500 276 13 211 +203.11 +/- 23.17
64726 ncm-et-10 2019-01-03 00:16 01:18:10 1963236 500 294 3 203 +231.21 +/- 23.34
64725 ncm-et-4 2019-01-02 23:07 01:17:04 1961249 500 296 13 191 +222.92 +/- 24.53
64724 ncm-et-3 2019-01-02 23:02 01:16:30 1966158 500 274 13 213 +201.19 +/- 23.05
64723 ncm-et-9 2019-01-02 23:01 01:16:37 1964919 500 263 17 220 +187.16 +/- 22.71
64722 ncm-et-15 2019-01-02 23:01 01:16:32 1977685 500 304 12 184 +232.26 +/- 25.02
64721 ncm-et-13 2019-01-02 23:00 01:17:34 1986110 500 290 9 201 +220.88 +/- 23.72
64720 ncm-et-10 2019-01-02 22:58 01:17:06 1964020 500 294 10 196 +223.94 +/- 24.09
64719 ncm-et-4 2019-01-02 21:49 01:17:13 1967385 500 305 15 180 +230.16 +/- 25.38
64718 ncm-et-9 2019-01-02 21:43 01:16:56 1974985 500 276 12 212 +204.07 +/- 23.08
64717 ncm-et-3 2019-01-02 21:43 01:17:18 1963841 500 295 8 197 +227.04 +/- 23.96
64716 ncm-et-15 2019-01-02 21:43 01:16:34 1984402 500 302 9 189 +233.32 +/- 24.56
64715 ncm-et-13 2019-01-02 21:42 01:17:24 1978124 500 294 6 200 +228.08 +/- 23.68
64714 ncm-et-10 2019-01-02 21:39 01:17:09 1964460 500 280 8 212 +211.87 +/- 22.95
64713 ncm-et-4 2019-01-02 20:29 01:18:22 1962935 500 271 12 217 +199.29 +/- 22.77
64712 ncm-et-15 2019-01-02 20:25 01:17:11 1976538 500 291 13 196 +217.85 +/- 24.17
64711 ncm-et-3 2019-01-02 20:24 01:17:53 1960625 500 275 9 216 +206.01 +/- 22.73
64710 ncm-et-9 2019-01-02 20:24 01:18:30 1970502 500 279 7 214 +211.87 +/- 22.79
64709 ncm-et-13 2019-01-02 20:23 01:17:36 1977166 500 277 11 212 +206.01 +/- 23.05
64708 ncm-et-10 2019-01-02 20:22 01:16:33 1967232 500 278 9 213 +208.93 +/- 22.92
64707 ncm-et-4 2019-01-02 19:09 01:18:41 1966770 500 260 10 230 +190.85 +/- 21.92
64706 ncm-et-15 2019-01-02 19:06 01:17:35 1988212 500 265 14 221 +191.78 +/- 22.58
64705 ncm-et-9 2019-01-02 19:05 01:17:29 1981567 500 297 10 193 +227.04 +/- 24.3
64704 ncm-et-13 2019-01-02 19:05 01:17:25 1981711 500 294 5 201 +229.12 +/- 23.57
64703 ncm-et-3 2019-01-02 19:04 01:19:02 1958785 500 269 9 222 +200.24 +/- 22.36
64702 ncm-et-10 2019-01-02 19:04 01:17:01 1961697 500 284 18 198 +206.01 +/- 24.14
64701 ncm-et-10 2019-01-02 17:47 01:16:10 1974699 500 288 10 202 +217.85 +/- 23.68
64700 ncm-et-9 2019-01-02 17:46 01:17:45 1974686 500 279 12 209 +206.98 +/- 23.28
64699 ncm-et-3 2019-01-02 17:46 01:16:41 1985064 500 295 8 197 +227.04 +/- 23.96
64698 ncm-et-4 2019-01-02 17:46 01:21:59 1909552 500 277 14 209 +203.11 +/- 23.33
64697 ncm-et-13 2019-01-02 17:46 01:17:03 1973289 500 271 12 217 +199.29 +/- 22.77
64696 ncm-et-15 2019-01-02 17:46 01:18:51 1980442 500 289 7 204 +221.9 +/- 23.44

Commit

Commit ID e2d3c163cbdd98de6f0399db358be964d014d313
Author protonspring
Date 2019-01-01 12:35:53 UTC
Remove as useless micro-optimization in pawns generation (#1915) The extra condition is used as a shortcut to skip the following 3 assignments: ```C++ Bitboard b1 = shift<UpRight>(pawnsOn7) & enemies; Bitboard b2 = shift<UpLeft >(pawnsOn7) & enemies; Bitboard b3 = shift<Up >(pawnsOn7) & emptySquares; ``` In case of EVASION with no target on 8th rank (the common case), we end up performing the 3 statements for nothing because b1 = b2 = b3 = 0. But this is just a small micro-optimization and the condition is quite confusing, so just remove it and prefer a readable code instead. STC LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 78020 W: 16978 L: 16967 D: 44075 http://tests.stockfishchess.org/tests/view/5c27b4fe0ebc5902ba135bb0 No functional change.
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