Dev Builds » 20190324-1637

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 08:33:53 1967024 3327 1905 74 1348 +215.02 +/- 9.15
ncm-et-4 08:34:24 1951252 3304 1899 53 1352 +219.22 +/- 9.1
ncm-et-9 08:34:14 1976277 3336 1877 69 1390 +210.87 +/- 8.99
ncm-et-10 08:34:06 1966109 3327 1972 68 1287 +226.15 +/- 9.39
ncm-et-13 08:34:33 1980453 3339 1895 55 1389 +215.38 +/- 8.96
ncm-et-15 08:34:16 1972706 3367 1976 81 1310 +221.3 +/- 9.32
20000 11524 400 8076 +217.95 +/- 3.73

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
75272 ncm-et-4 2019-03-26 05:17 00:47:13 1966305 304 168 2 134 +212.89 +/- 28.55
75271 ncm-et-3 2019-03-26 05:14 00:50:05 1967077 327 187 4 136 +219.68 +/- 28.66
75270 ncm-et-10 2019-03-26 05:13 00:50:36 1967543 327 189 6 132 +219.68 +/- 29.31
75269 ncm-et-9 2019-03-26 05:11 00:53:05 1999240 336 185 9 142 +202.06 +/- 28.3
75268 ncm-et-13 2019-03-26 05:11 00:53:25 1984398 339 187 6 146 +206.94 +/- 27.69
75267 ncm-et-15 2019-03-26 05:09 00:55:19 1972191 367 212 12 143 +212.35 +/- 28.42
75266 ncm-et-3 2019-03-26 03:56 01:17:11 1970843 500 276 10 214 +206.01 +/- 22.89
75265 ncm-et-10 2019-03-26 03:55 01:17:31 1963243 500 313 10 177 +244.1 +/- 25.51
75264 ncm-et-13 2019-03-26 03:53 01:16:40 1984088 500 268 6 226 +202.15 +/- 22.01
75263 ncm-et-9 2019-03-26 03:53 01:17:30 1969876 500 300 7 193 +233.32 +/- 24.21
75262 ncm-et-4 2019-03-26 03:53 01:23:18 1863139 500 296 6 198 +230.16 +/- 23.81
75261 ncm-et-15 2019-03-26 03:52 01:16:06 1971880 500 281 13 206 +207.95 +/- 23.5
75260 ncm-et-3 2019-03-26 02:38 01:16:32 1975510 500 291 10 199 +220.88 +/- 23.88
75259 ncm-et-10 2019-03-26 02:37 01:17:03 1966614 500 285 10 205 +214.85 +/- 23.48
75258 ncm-et-13 2019-03-26 02:36 01:15:43 1979034 500 279 8 213 +210.89 +/- 22.89
75257 ncm-et-9 2019-03-26 02:35 01:16:09 1967706 500 255 13 232 +183.51 +/- 21.9
75256 ncm-et-4 2019-03-26 02:35 01:16:38 1963383 500 305 10 185 +235.45 +/- 24.89
75255 ncm-et-15 2019-03-26 02:35 01:16:10 1972740 500 310 10 180 +240.82 +/- 25.27
75254 ncm-et-3 2019-03-26 01:19 01:17:44 1963840 500 289 16 195 +212.86 +/- 24.31
75253 ncm-et-13 2019-03-26 01:18 01:16:56 1979659 500 277 7 216 +209.91 +/- 22.66
75252 ncm-et-10 2019-03-26 01:18 01:17:20 1960936 500 310 11 179 +239.74 +/- 25.37
75251 ncm-et-9 2019-03-26 01:17 01:17:05 1982071 500 281 11 208 +209.91 +/- 23.31
75250 ncm-et-15 2019-03-26 01:17 01:16:58 1979243 500 282 10 208 +211.87 +/- 23.28
75249 ncm-et-4 2019-03-26 01:16 01:17:50 1964763 500 283 6 211 +216.85 +/- 22.94
75248 ncm-et-10 2019-03-26 00:01 01:16:44 1975815 500 288 10 202 +217.85 +/- 23.68
75247 ncm-et-3 2019-03-26 00:00 01:17:58 1964979 500 292 11 197 +220.88 +/- 24.05
75246 ncm-et-13 2019-03-25 23:59 01:17:53 1974837 500 290 11 199 +218.86 +/- 23.91
75245 ncm-et-4 2019-03-25 23:59 01:15:50 1960560 500 280 8 212 +211.87 +/- 22.95
75244 ncm-et-9 2019-03-25 23:59 01:17:15 1975292 500 293 4 203 +229.12 +/- 23.39
75243 ncm-et-15 2019-03-25 23:59 01:16:34 1968631 500 298 10 192 +228.08 +/- 24.38
75242 ncm-et-3 2019-03-25 22:42 01:16:43 1964924 500 275 11 214 +204.07 +/- 22.93
75241 ncm-et-10 2019-03-25 22:42 01:17:34 1965084 500 279 12 209 +206.98 +/- 23.28
75240 ncm-et-13 2019-03-25 22:41 01:16:59 1979460 500 300 9 191 +231.21 +/- 24.42
75239 ncm-et-15 2019-03-25 22:41 01:16:57 1968497 500 288 13 199 +214.85 +/- 23.97
75238 ncm-et-9 2019-03-25 22:41 01:17:16 1970965 500 283 13 204 +209.91 +/- 23.63
75237 ncm-et-4 2019-03-25 22:40 01:17:49 1964147 500 282 15 203 +206.98 +/- 23.74
75236 ncm-et-3 2019-03-25 21:24 01:17:40 1961997 500 295 12 193 +222.92 +/- 24.36
75235 ncm-et-9 2019-03-25 21:24 01:15:54 1968789 500 280 12 208 +207.95 +/- 23.34
75234 ncm-et-15 2019-03-25 21:24 01:16:12 1975760 500 305 13 182 +232.26 +/- 25.19
75233 ncm-et-10 2019-03-25 21:24 01:17:18 1963534 500 308 9 183 +239.74 +/- 25.01
75232 ncm-et-13 2019-03-25 21:23 01:16:57 1981695 500 294 8 198 +226.0 +/- 23.89
75231 ncm-et-4 2019-03-25 21:23 01:15:46 1976469 500 285 6 209 +218.86 +/- 23.07

Commit

Commit ID ea5505821dabb70eb01cc25f7b4489b0fdc17d2b
Author protonspring
Date 2019-03-24 16:37:38 UTC
Simplify Passed Pawns (#2058) This is a non-functional simplification/speedup. The truth-table for popcount(support) >= popcount(lever) - 1 is: ------------------lever ------------------0-------1---------2 support--0------X-------X---------0 -----------1------X-------X---------X -----------2------X-------X---------X Thus, it is functionally equivalent to just do: support || !more_than_one(lever) which removes the expensive popcounts and the -1. Result of 20 runs: base (...h_master.exe) = 1451680 +/- 8202 test (./stockfish ) = 1454781 +/- 8604 diff = +3101 +/- 931 STC LLR: 2.94 (-2.94,2.94) [-3.00,1.00] Total: 35424 W: 7768 L: 7674 D: 19982 Http://tests.stockfishchess.org/tests/view/5c970f170ebc5925cfff5e28 No functional change.
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