Dev Builds » 20180226-0006

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 06:36:23 2001104 2571 1175 102 1294 +154.43 +/- 9.24
ncm-et-4 06:37:52 2001329 2574 1194 83 1297 +160.48 +/- 9.18
ncm-et-5 02:18:48 2023610 906 413 35 458 +154.37 +/- 15.52
ncm-et-6 02:18:25 2025572 890 415 29 446 +161.37 +/- 15.69
ncm-et-7 02:16:51 2014094 881 405 33 443 +156.49 +/- 15.78
ncm-et-8 02:13:40 2022224 882 399 27 456 +156.29 +/- 15.42
ncm-et-9 06:36:55 2000879 2575 1196 99 1280 +158.09 +/- 9.3
ncm-et-10 06:37:00 1986791 2547 1142 85 1320 +153.44 +/- 9.07
ncm-et-11 02:16:41 2012103 891 405 37 449 +152.61 +/- 15.71
ncm-et-12 02:14:26 1987318 870 386 29 455 +151.49 +/- 15.44
ncm-et-13 07:07:48 2010995 2767 1251 111 1405 +152.18 +/- 8.86
ncm-et-15 04:19:34 1954465 1646 733 55 858 +152.14 +/- 11.24
20000 9114 725 10161 +155.31 +/- 3.28

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
53388 ncm-et-15 2018-09-12 01:19 00:23:34 1910189 146 69 4 73 +166.32 +/- 38.87
53387 ncm-et-10 2018-09-12 01:17 00:24:31 1963272 155 62 4 89 +136.64 +/- 34.16
53386 ncm-et-13 2018-09-12 01:16 00:26:08 1986879 164 86 6 72 +185.24 +/- 39.96
53385 ncm-et-4 2018-09-12 01:15 00:27:37 1990349 179 79 6 94 +150.44 +/- 34.08
53384 ncm-et-9 2018-09-12 01:14 00:27:44 1988139 178 80 12 86 +139.82 +/- 36.59
53383 ncm-et-3 2018-09-12 01:13 00:28:36 1987350 178 90 7 81 +175.57 +/- 37.57
53382 ncm-et-15 2018-09-11 23:59 01:18:36 1983263 500 214 17 269 +144.72 +/- 20.0
53381 ncm-et-13 2018-09-11 23:57 01:17:27 1989086 500 212 22 266 +138.99 +/- 20.28
53380 ncm-et-10 2018-09-11 23:56 01:20:18 1954046 500 221 15 264 +152.18 +/- 20.2
53379 ncm-et-4 2018-09-11 23:56 01:17:26 1988457 500 235 16 249 +163.21 +/- 21.03
53378 ncm-et-9 2018-09-11 23:56 01:17:44 1990348 500 255 12 233 +184.42 +/- 21.81
53377 ncm-et-3 2018-09-11 23:55 01:17:13 1988770 500 233 12 255 +164.93 +/- 20.58
53376 ncm-et-10 2018-09-11 22:38 01:16:36 1981851 500 233 23 244 +155.54 +/- 21.46
53375 ncm-et-13 2018-09-11 22:38 01:18:06 1990664 500 215 22 263 +141.44 +/- 20.43
53374 ncm-et-15 2018-09-11 22:38 01:19:50 1942714 500 230 20 250 +155.54 +/- 21.07
53373 ncm-et-3 2018-09-11 22:38 01:16:19 1991930 500 210 26 264 +134.15 +/- 20.47
53372 ncm-et-4 2018-09-11 22:38 01:17:15 1988454 500 229 16 255 +158.08 +/- 20.7
53371 ncm-et-9 2018-09-11 22:38 01:16:50 1988138 500 225 16 259 +154.7 +/- 20.49
53370 ncm-et-13 2018-09-11 21:20 01:17:38 1971703 500 230 19 251 +156.39 +/- 21.0
53369 ncm-et-10 2018-09-11 21:20 01:17:53 1981694 500 231 13 256 +162.35 +/- 20.56
53368 ncm-et-9 2018-09-11 21:19 01:17:14 1987508 500 231 25 244 +152.18 +/- 21.5
53367 ncm-et-4 2018-09-11 21:19 01:17:21 1989401 500 234 20 246 +158.93 +/- 21.29
53366 ncm-et-15 2018-09-11 21:19 01:17:34 1981694 500 220 14 266 +152.18 +/- 20.07
53365 ncm-et-3 2018-09-11 21:19 01:17:23 1989722 500 227 22 251 +151.35 +/- 21.06
3148 ncm-et-13 2018-02-26 07:33 00:15:56 2026064 103 48 3 52 +162.73 +/- 46.17
3147 ncm-et-8 2018-02-26 06:51 00:58:02 2024263 382 169 10 203 +153.96 +/- 22.95
3146 ncm-et-12 2018-02-26 06:51 00:58:02 1997435 370 176 12 182 +165.47 +/- 24.66
3145 ncm-et-7 2018-02-26 06:50 00:59:33 2003761 381 177 17 187 +155.52 +/- 24.5
3144 ncm-et-11 2018-02-26 06:49 00:59:59 2015150 391 190 18 183 +164.03 +/- 24.91
3143 ncm-et-10 2018-02-26 06:49 01:00:06 2021488 392 185 11 196 +165.74 +/- 23.63
3142 ncm-et-3 2018-02-26 06:49 01:00:42 2022956 393 184 18 191 +156.55 +/- 24.28
3141 ncm-et-4 2018-02-26 06:49 01:00:48 2027050 395 183 10 202 +163.2 +/- 23.15
3140 ncm-et-6 2018-02-26 06:48 01:01:09 2026718 390 187 14 189 +165.62 +/- 24.29
3139 ncm-et-9 2018-02-26 06:48 01:01:29 2024263 397 172 20 205 +140.16 +/- 23.3
3138 ncm-et-5 2018-02-26 06:48 01:01:41 2024427 406 189 13 204 +161.28 +/- 23.21
3137 ncm-et-13 2018-02-26 06:15 01:17:18 2025410 500 222 23 255 +146.36 +/- 20.87
3136 ncm-et-8 2018-02-26 05:35 01:15:38 2020186 500 230 17 253 +158.08 +/- 20.84
3135 ncm-et-12 2018-02-26 05:34 01:16:24 1977201 500 210 17 273 +141.44 +/- 19.79
3134 ncm-et-11 2018-02-26 05:32 01:16:42 2009057 500 215 19 266 +143.89 +/- 20.21
3133 ncm-et-7 2018-02-26 05:32 01:17:18 2024427 500 228 16 256 +157.24 +/- 20.65
3132 ncm-et-3 2018-02-26 05:31 01:16:10 2025900 500 231 17 252 +158.93 +/- 20.89
3131 ncm-et-9 2018-02-26 05:31 01:15:54 2026882 500 233 14 253 +163.21 +/- 20.75
3130 ncm-et-10 2018-02-26 05:31 01:17:36 2018395 500 210 19 271 +139.81 +/- 19.95
3129 ncm-et-4 2018-02-26 05:30 01:17:25 2024263 500 234 15 251 +163.21 +/- 20.89
3128 ncm-et-6 2018-02-26 05:30 01:17:16 2024427 500 228 15 257 +158.08 +/- 20.57
3127 ncm-et-5 2018-02-26 05:29 01:17:07 2022793 500 224 22 254 +148.85 +/- 20.91
3126 ncm-et-13 2018-02-26 04:59 01:15:15 2087163 500 238 16 246 +165.8 +/- 21.19

Commit

Commit ID 7a03450bd9a0e2b3d596bb0654add4402041957a
Author Stéphane Nicolet
Date 2018-02-26 00:06:45 UTC
Count passed pawns in asymmetry measure The previous asymmetry measure of the pawn structure only used to consider the number of pawns on semi-opened files in the position. With this patch we also increase the measure by the number of passed pawns for both players. Many thanks to the community for the nice feedback on the previous version, with special mentions to Alain Savard and Marco Costalba for clarity and speed suggestions. STC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 13146 W: 3038 L: 2840 D: 7268 http://tests.stockfishchess.org/tests/view/5a91dd0c0ebc590297cc877e LTC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 27776 W: 4771 L: 4536 D: 18469 http://tests.stockfishchess.org/tests/view/5a91fdd50ebc590297cc879b How to continue after this patch? Stockfish will now evaluate more positions with passed pawns, so tuning the passed pawns values may bring Elo. The patch has also consequences on the initiative term, where we might want to give different weights to passed pawns and semi-openfiles (idea by Stefano Cardanobile). Bench: 5302866
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