Dev Builds » 20190410-1735

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 08:35:42 1974474 3308 1948 58 1302 +225.66 +/- 9.31
ncm-et-4 08:36:01 1960277 3328 1934 75 1319 +219.16 +/- 9.27
ncm-et-9 08:36:11 1975998 3352 1908 77 1367 +212.98 +/- 9.09
ncm-et-10 08:35:58 1964473 3340 1979 67 1294 +226.24 +/- 9.36
ncm-et-13 08:36:04 1973393 3314 1942 71 1301 +222.19 +/- 9.33
ncm-et-15 08:35:31 1975861 3358 1999 72 1287 +226.96 +/- 9.4
20000 11710 420 7870 +222.15 +/- 3.79

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
77282 ncm-et-3 2019-04-11 03:39 00:47:24 1974106 308 188 5 115 +237.67 +/- 31.55
77281 ncm-et-13 2019-04-11 03:38 00:49:18 1967848 314 176 6 132 +210.59 +/- 29.23
77280 ncm-et-4 2019-04-11 03:37 00:49:48 1985720 328 179 10 139 +197.98 +/- 28.65
77279 ncm-et-10 2019-04-11 03:36 00:51:04 1964926 340 204 8 128 +228.32 +/- 30.0
77278 ncm-et-15 2019-04-11 03:32 00:54:35 1992779 358 209 7 142 +222.03 +/- 28.31
77277 ncm-et-9 2019-04-11 03:32 00:55:30 1971721 352 192 6 154 +204.27 +/- 26.9
77276 ncm-et-3 2019-04-11 02:20 01:18:04 1965534 500 295 14 191 +220.88 +/- 24.55
77275 ncm-et-4 2019-04-11 02:19 01:16:52 1966304 500 307 7 186 +240.82 +/- 24.72
77274 ncm-et-10 2019-04-11 02:19 01:15:54 1963098 500 309 10 181 +239.74 +/- 25.19
77273 ncm-et-13 2019-04-11 02:18 01:18:15 1973116 500 300 12 188 +228.08 +/- 24.72
77272 ncm-et-15 2019-04-11 02:14 01:16:58 1966000 500 304 8 188 +236.51 +/- 24.61
77271 ncm-et-9 2019-04-11 02:14 01:16:39 1991477 500 294 17 189 +216.85 +/- 24.74
77270 ncm-et-4 2019-04-11 01:02 01:16:16 1967232 500 296 15 189 +220.88 +/- 24.71
77269 ncm-et-10 2019-04-11 01:02 01:16:10 1977538 500 292 12 196 +219.87 +/- 24.15
77268 ncm-et-3 2019-04-11 01:01 01:17:47 1974933 500 298 4 198 +234.38 +/- 23.73
77267 ncm-et-13 2019-04-11 00:59 01:18:14 1971894 500 295 11 194 +223.94 +/- 24.26
77266 ncm-et-9 2019-04-11 00:56 01:17:19 1963383 500 288 15 197 +212.86 +/- 24.15
77265 ncm-et-15 2019-04-11 00:55 01:17:33 1977007 500 270 14 216 +196.45 +/- 22.88
77264 ncm-et-3 2019-04-10 23:43 01:17:37 1975333 500 297 11 192 +226.0 +/- 24.4
77263 ncm-et-10 2019-04-10 23:41 01:19:22 1957404 500 291 10 199 +220.88 +/- 23.88
77262 ncm-et-4 2019-04-10 23:41 01:20:16 1935862 500 300 8 192 +232.26 +/- 24.31
77261 ncm-et-13 2019-04-10 23:40 01:18:23 1983199 500 289 10 201 +218.86 +/- 23.75
77260 ncm-et-9 2019-04-10 23:38 01:16:45 1985208 500 283 9 208 +213.85 +/- 23.25
77259 ncm-et-15 2019-04-10 23:37 01:17:40 1968625 500 288 8 204 +219.87 +/- 23.48
77258 ncm-et-3 2019-04-10 22:24 01:17:45 1983852 500 283 4 213 +218.86 +/- 22.73
77257 ncm-et-10 2019-04-10 22:21 01:19:00 1961551 500 312 7 181 +246.3 +/- 25.1
77256 ncm-et-13 2019-04-10 22:21 01:17:29 1974984 500 280 11 209 +208.93 +/- 23.25
77255 ncm-et-4 2019-04-10 22:21 01:18:39 1937747 500 284 12 204 +211.87 +/- 23.6
77254 ncm-et-9 2019-04-10 22:20 01:16:39 1969411 500 281 11 208 +209.91 +/- 23.31
77253 ncm-et-15 2019-04-10 22:19 01:16:08 1972496 500 289 11 200 +217.85 +/- 23.85
77252 ncm-et-3 2019-04-10 21:05 01:18:01 1984803 500 293 7 200 +226.0 +/- 23.71
77251 ncm-et-4 2019-04-10 21:04 01:16:22 1965225 500 289 11 200 +217.85 +/- 23.85
77250 ncm-et-10 2019-04-10 21:03 01:16:42 1967712 500 279 11 210 +207.95 +/- 23.18
77249 ncm-et-13 2019-04-10 21:03 01:16:39 1974553 500 297 11 192 +226.0 +/- 24.4
77248 ncm-et-15 2019-04-10 21:03 01:15:47 1983788 500 323 11 166 +254.16 +/- 26.44
77247 ncm-et-9 2019-04-10 21:03 01:16:24 1984937 500 291 8 201 +222.92 +/- 23.68
77246 ncm-et-15 2019-04-10 19:45 01:16:50 1970338 500 316 13 171 +244.1 +/- 26.05
77245 ncm-et-3 2019-04-10 19:45 01:19:04 1962763 500 294 13 193 +220.88 +/- 24.38
77244 ncm-et-10 2019-04-10 19:45 01:17:46 1959084 500 292 9 199 +222.92 +/- 23.85
77243 ncm-et-4 2019-04-10 19:45 01:17:48 1963849 500 279 12 209 +206.98 +/- 23.28
77242 ncm-et-13 2019-04-10 19:45 01:17:46 1968157 500 305 10 185 +235.45 +/- 24.89
77241 ncm-et-9 2019-04-10 19:45 01:16:55 1965855 500 279 11 210 +207.95 +/- 23.18

Commit

Commit ID 5b5687d76e7dc10af9ebaa91f03190db9a9f8d27
Author miguel-l
Date 2019-04-10 17:35:47 UTC
Extend dangerous passed pawn moves (#2089) Introduce a new search extension when pushing an advanced passed pawn is also suggested by the first killer move. There have been previous tests which have similar ideas, mostly about pawn pushes, but it seems to be overkill to extend too many moves. My idea is to limit the extension to when a move happens to be noteworthy in some other way as well, such as in this case, when it is also a killer move. STC: LLR: 2.96 (-2.94,2.94) [0.50,4.50] Total: 19027 W: 4326 L: 4067 D: 10634 http://tests.stockfishchess.org/tests/view/5cac2cde0ebc5925cf00c36d LTC: LLR: 2.94 (-2.94,2.94) [0.00,3.50] Total: 93390 W: 15995 L: 15555 D: 61840 http://tests.stockfishchess.org/tests/view/5cac42270ebc5925cf00c4b9 For future tests, it looks like this will interact heavily with passed pawn evaluation. It may be good to try more variants of some of the more promising evaluations tests/tweaks. Bench: 3666092
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