Dev Builds » 20190924-1054

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 08:29:24 1972396 3333 2002 66 1265 +230.61 +/- 9.48
ncm-et-4 08:30:16 1969701 3317 2014 56 1247 +235.6 +/- 9.53
ncm-et-9 08:29:59 1974249 3333 2006 62 1265 +231.87 +/- 9.47
ncm-et-10 08:26:06 1966820 3330 2005 61 1264 +232.15 +/- 9.47
ncm-et-13 08:29:14 1976296 3349 1986 65 1298 +226.83 +/- 9.34
ncm-et-15 08:28:22 1973589 3338 1975 78 1285 +224.1 +/- 9.41
20000 11988 388 7624 +230.16 +/- 3.86

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
97366 ncm-et-10 2019-09-25 00:17 00:48:42 1971719 330 205 7 118 +240.82 +/- 31.3
97365 ncm-et-3 2019-09-25 00:15 00:50:29 1976229 333 210 7 116 +246.09 +/- 31.61
97364 ncm-et-4 2019-09-25 00:15 00:50:40 1948655 317 193 2 122 +242.2 +/- 30.31
97363 ncm-et-15 2019-09-25 00:13 00:52:08 1976934 338 199 8 131 +222.46 +/- 29.6
97362 ncm-et-9 2019-09-25 00:13 00:52:13 1961228 333 196 5 132 +226.82 +/- 29.28
97361 ncm-et-13 2019-09-25 00:11 00:54:25 1966923 349 201 8 140 +216.35 +/- 28.55
97360 ncm-et-10 2019-09-24 23:00 01:16:02 1970428 500 313 15 172 +238.66 +/- 26.0
97359 ncm-et-4 2019-09-24 22:58 01:15:51 1988548 500 302 8 190 +234.38 +/- 24.46
97358 ncm-et-3 2019-09-24 22:57 01:16:27 1970173 500 298 4 198 +234.38 +/- 23.73
97357 ncm-et-9 2019-09-24 22:57 01:15:27 1972339 500 309 12 179 +237.58 +/- 25.4
97356 ncm-et-13 2019-09-24 22:55 01:15:22 1992125 500 305 9 186 +236.51 +/- 24.79
97355 ncm-et-15 2019-09-24 22:55 01:17:36 1971886 500 295 11 194 +223.94 +/- 24.26
97354 ncm-et-10 2019-09-24 21:43 01:15:24 1959409 500 295 9 196 +226.0 +/- 24.06
97353 ncm-et-4 2019-09-24 21:42 01:15:01 1970173 500 307 8 185 +239.74 +/- 24.83
97352 ncm-et-3 2019-09-24 21:41 01:15:37 1976855 500 306 8 186 +238.66 +/- 24.75
97351 ncm-et-15 2019-09-24 21:40 01:13:56 1982832 500 289 11 200 +217.85 +/- 23.85
97350 ncm-et-9 2019-09-24 21:39 01:16:27 1969242 500 298 6 196 +232.26 +/- 23.95
97349 ncm-et-13 2019-09-24 21:37 01:16:51 1966309 500 279 12 209 +206.98 +/- 23.28
97348 ncm-et-10 2019-09-24 20:25 01:17:17 1967861 500 301 7 192 +234.38 +/- 24.28
97347 ncm-et-4 2019-09-24 20:24 01:16:21 1977319 500 308 11 181 +237.58 +/- 25.22
97346 ncm-et-3 2019-09-24 20:24 01:16:10 1972972 500 298 16 186 +221.9 +/- 24.95
97345 ncm-et-15 2019-09-24 20:22 01:16:13 1971769 500 300 7 193 +233.32 +/- 24.21
97344 ncm-et-9 2019-09-24 20:22 01:15:51 1969561 500 302 10 188 +232.26 +/- 24.67
97343 ncm-et-13 2019-09-24 20:20 01:16:00 1979194 500 289 5 206 +223.94 +/- 23.23
97342 ncm-et-10 2019-09-24 19:07 01:17:08 1968311 500 306 10 184 +236.51 +/- 24.97
97341 ncm-et-3 2019-09-24 19:06 01:16:03 1968474 500 299 15 186 +223.94 +/- 24.93
97340 ncm-et-4 2019-09-24 19:06 01:17:29 1951776 500 298 12 190 +226.0 +/- 24.57
97339 ncm-et-13 2019-09-24 19:05 01:13:51 1979313 500 311 12 177 +239.74 +/- 25.55
97338 ncm-et-9 2019-09-24 19:04 01:17:04 1979207 500 291 12 197 +218.86 +/- 24.08
97337 ncm-et-15 2019-09-24 19:04 01:17:25 1965380 500 300 14 186 +226.0 +/- 24.91
97336 ncm-et-10 2019-09-24 17:49 01:16:31 1966319 500 298 8 194 +230.16 +/- 24.17
97335 ncm-et-3 2019-09-24 17:48 01:16:54 1970961 500 300 8 192 +232.26 +/- 24.31
97334 ncm-et-15 2019-09-24 17:48 01:14:32 1978315 500 286 15 199 +210.89 +/- 24.01
97333 ncm-et-13 2019-09-24 17:48 01:15:31 1970175 500 299 13 188 +226.0 +/- 24.74
97332 ncm-et-4 2019-09-24 17:47 01:18:05 1981576 500 301 8 191 +233.32 +/- 24.39
97331 ncm-et-9 2019-09-24 17:46 01:16:51 1975288 500 304 4 192 +240.82 +/- 24.16
97330 ncm-et-10 2019-09-24 16:33 01:15:02 1963693 500 287 5 208 +221.9 +/- 23.1
97329 ncm-et-15 2019-09-24 16:31 01:16:32 1968010 500 306 12 182 +234.38 +/- 25.17
97328 ncm-et-13 2019-09-24 16:30 01:17:14 1980034 500 302 6 192 +236.51 +/- 24.24
97327 ncm-et-3 2019-09-24 16:30 01:17:44 1971110 500 291 8 201 +222.92 +/- 23.68
97326 ncm-et-9 2019-09-24 16:29 01:16:06 1992882 500 306 13 181 +233.32 +/- 25.26
97325 ncm-et-4 2019-09-24 16:29 01:16:49 1969865 500 305 7 188 +238.66 +/- 24.57

Commit

Commit ID 667d24f22743959ceddda6af53718619ea5c551d
Author Stéphane Nicolet
Date 2019-09-24 10:54:02 UTC
Increase weight for supported pawns This patch changes the weight for counting supports of pawns from 17 to 21. Hopefully Stockfish will accept to play a bit more of closed or semi-closed positions. STC: LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 13822 W: 3158 L: 2939 D: 7725 http://tests.stockfishchess.org/tests/view/5d89c3a10ebc595091802379 LTC: LLR: 2.96 (-2.94,2.94) [0.00,4.00] Total: 63066 W: 10590 L: 10236 D: 42240 http://tests.stockfishchess.org/tests/view/5d89ca7f0ebc595091802680 Future work: try to tweak the evaluation to better understand the French structures. Closes https://github.com/official-stockfish/Stockfish/pull/2326 Bench: 3618154
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