Dev Builds » 20180814-0812

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 08:38:47 1990507 3380 1710 97 1573 +180.45 +/- 8.4
ncm-et-4 08:35:23 1989357 3349 1640 94 1615 +173.5 +/- 8.26
ncm-et-9 08:33:54 1988747 3357 1736 96 1525 +185.58 +/- 8.56
ncm-et-10 08:29:42 1972132 3286 1702 90 1494 +186.51 +/- 8.64
ncm-et-13 08:36:04 1977991 3348 1746 106 1496 +186.18 +/- 8.67
ncm-et-15 08:33:55 1964081 3280 1712 71 1497 +190.99 +/- 8.59
20000 10246 554 9200 +183.79 +/- 3.48

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
49788 ncm-et-15 2018-08-14 20:07 00:43:40 1981068 280 147 9 124 +187.56 +/- 30.26
49787 ncm-et-10 2018-08-14 20:06 00:44:56 1961777 286 141 9 136 +173.46 +/- 28.66
49786 ncm-et-4 2018-08-14 19:58 00:52:50 1987665 349 166 12 171 +164.61 +/- 25.49
49785 ncm-et-13 2018-08-14 19:56 00:54:46 1987352 348 177 12 159 +179.07 +/- 26.65
49784 ncm-et-9 2018-08-14 19:56 00:55:41 1988612 357 170 13 174 +163.97 +/- 25.32
49783 ncm-et-3 2018-08-14 19:52 00:58:58 1988454 380 203 12 165 +192.07 +/- 26.24
49782 ncm-et-10 2018-08-14 18:47 01:17:55 1979348 500 249 17 234 +174.55 +/- 21.89
49781 ncm-et-15 2018-08-14 18:44 01:21:57 1895556 500 249 7 244 +183.51 +/- 21.0
49780 ncm-et-4 2018-08-14 18:40 01:17:24 1987824 500 229 13 258 +160.64 +/- 20.45
49779 ncm-et-9 2018-08-14 18:39 01:15:49 1989560 500 256 5 239 +191.78 +/- 21.2
49778 ncm-et-13 2018-08-14 18:37 01:18:19 1987679 500 264 14 222 +190.85 +/- 22.52
49777 ncm-et-3 2018-08-14 18:35 01:15:52 1990665 500 272 12 216 +200.24 +/- 22.83
49776 ncm-et-10 2018-08-14 17:29 01:16:28 1982007 500 255 10 235 +186.25 +/- 21.63
49775 ncm-et-15 2018-08-14 17:27 01:16:23 1979507 500 268 9 223 +199.29 +/- 22.3
49774 ncm-et-4 2018-08-14 17:22 01:17:06 1990664 500 245 15 240 +172.78 +/- 21.5
49773 ncm-et-9 2018-08-14 17:21 01:16:35 1989716 500 277 10 213 +206.98 +/- 22.96
49772 ncm-et-13 2018-08-14 17:19 01:16:28 1962628 500 265 14 221 +191.78 +/- 22.58
49771 ncm-et-3 2018-08-14 17:17 01:17:12 1989558 500 230 21 249 +154.7 +/- 21.15
49770 ncm-et-10 2018-08-14 16:11 01:17:27 1981382 500 268 20 212 +189.0 +/- 23.26
49769 ncm-et-15 2018-08-14 16:08 01:17:41 1982478 500 262 9 229 +193.64 +/- 21.94
49768 ncm-et-9 2018-08-14 16:04 01:16:18 1986878 500 248 16 236 +174.55 +/- 21.75
49767 ncm-et-4 2018-08-14 16:03 01:17:13 1990034 500 249 14 237 +177.22 +/- 21.64
49766 ncm-et-13 2018-08-14 16:02 01:16:03 1986563 500 255 16 229 +180.8 +/- 22.15
49765 ncm-et-3 2018-08-14 15:58 01:17:47 1989875 500 255 15 230 +181.7 +/- 22.07
49764 ncm-et-10 2018-08-14 14:53 01:16:53 1979503 500 257 13 230 +185.33 +/- 22.01
49763 ncm-et-15 2018-08-14 14:49 01:17:52 1981226 500 259 16 225 +184.42 +/- 22.39
49762 ncm-et-4 2018-08-14 14:45 01:17:13 1989085 500 262 20 218 +183.51 +/- 22.89
49761 ncm-et-9 2018-08-14 14:45 01:17:31 1987823 500 264 12 224 +192.71 +/- 22.34
49760 ncm-et-13 2018-08-14 14:45 01:16:33 1972739 500 260 18 222 +183.51 +/- 22.61
49759 ncm-et-3 2018-08-14 14:41 01:16:26 1991456 500 248 16 236 +174.55 +/- 21.75
49758 ncm-et-10 2018-08-14 13:33 01:18:26 1937176 500 249 12 239 +179.0 +/- 21.46
49757 ncm-et-15 2018-08-14 13:29 01:19:37 1947979 500 274 7 219 +206.98 +/- 22.47
49756 ncm-et-4 2018-08-14 13:28 01:16:01 1991931 500 242 9 249 +175.44 +/- 20.8
49755 ncm-et-9 2018-08-14 13:28 01:15:54 1988927 500 275 23 202 +192.71 +/- 23.94
49754 ncm-et-13 2018-08-14 13:26 01:17:06 1985468 500 269 19 212 +190.85 +/- 23.24
49753 ncm-et-3 2018-08-14 13:24 01:15:37 1991298 500 247 11 242 +178.11 +/- 21.26
49752 ncm-et-10 2018-08-14 12:14 01:17:37 1983733 500 283 9 208 +213.85 +/- 23.25
49751 ncm-et-9 2018-08-14 12:11 01:16:06 1989717 500 246 17 237 +171.9 +/- 21.72
49750 ncm-et-15 2018-08-14 12:11 01:16:45 1980756 500 253 14 233 +180.8 +/- 21.87
49749 ncm-et-4 2018-08-14 12:09 01:17:36 1988296 500 247 11 242 +178.11 +/- 21.26
49748 ncm-et-13 2018-08-14 12:09 01:16:49 1963511 500 256 13 231 +184.42 +/- 21.95
49747 ncm-et-3 2018-08-14 12:06 01:16:55 1992248 500 255 10 235 +186.25 +/- 21.63

Commit

Commit ID 881cab252530c8711e942f7936a3eb41b2956a6b
Author Stéphane Nicolet
Date 2018-08-14 08:12:31 UTC
Double weight of capture history We double in this patch the weight of the capture history table in the local scoring of captures for move ordering. The capture history table is indexed by the triplet (capturing piece, capture square, captured piece) and gets information like "it seems to have been historically good in that part of the search tree to capture a pawn with a rook on g3, even if it seems to lose material", and affect the normaly pure « Most Valuable Victim » ordering of captures. Finished yellow at STC after 228842 games (posting a +1.36 Elo gain): LLR: -2.95 (-2.94,2.94) [0.00,4.00] Total: 228842 W: 50894 L: 50152 D: 127796 http://tests.stockfishchess.org/tests/view/5b714bb00ebc5902bdba332d Passed LTC: LLR: 2.96 (-2.94,2.94) [0.00,4.00] Total: 43251 W: 7425 L: 7131 D: 28695 http://tests.stockfishchess.org/tests/view/5b71c7d40ebc5902bdba3e51 Thanks to user Vizvezdenec for running the LTC test. Closes https://github.com/official-stockfish/Stockfish/pull/1736 Bench: 4272361
Copyright 2011–2024 Next Chess Move LLC