Dev Builds » 20180309-2047

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 06:08:02 2001829 2412 1078 90 1244 +151.19 +/- 9.38
ncm-et-4 06:06:52 2001789 2379 1082 72 1225 +157.47 +/- 9.41
ncm-et-5 01:48:59 2025164 721 314 17 390 +152.15 +/- 16.45
ncm-et-6 01:48:52 2025572 732 330 35 367 +148.44 +/- 17.45
ncm-et-7 01:47:33 1986344 692 306 22 364 +151.52 +/- 17.23
ncm-et-8 01:49:32 1998402 708 327 25 356 +158.32 +/- 17.59
ncm-et-9 06:05:22 2000494 2399 1074 71 1254 +154.74 +/- 9.27
ncm-et-10 06:08:02 1983859 2404 1034 92 1278 +143.83 +/- 9.21
ncm-et-11 01:48:21 2015325 716 316 24 376 +150.44 +/- 16.98
ncm-et-12 01:49:11 2018315 724 320 16 388 +155.5 +/- 16.5
ncm-et-13 06:06:08 1945696 2305 1050 73 1182 +157.18 +/- 9.59
ncm-et-14 01:50:27 2019208 726 318 29 379 +146.39 +/- 17.0
ncm-et-15 06:06:05 1986733 2390 1091 63 1236 +159.84 +/- 9.33
ncm-et-16 01:48:33 1968915 692 321 15 356 +165.02 +/- 17.35
20000 8961 644 10395 +153.8 +/- 3.23

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
52794 ncm-et-13 2018-09-07 11:44 00:13:54 1982193 88 44 2 42 +180.47 +/- 51.69
52793 ncm-et-4 2018-09-07 11:32 00:26:30 1990506 172 86 5 81 +177.63 +/- 37.22
52792 ncm-et-10 2018-09-07 11:32 00:26:26 1981695 167 78 7 82 +157.72 +/- 37.07
52791 ncm-et-15 2018-09-07 11:30 00:28:16 1982478 187 81 7 99 +145.42 +/- 33.23
52790 ncm-et-9 2018-09-07 11:29 00:29:20 1987509 190 82 6 102 +147.19 +/- 32.52
52789 ncm-et-3 2018-09-07 11:29 00:29:52 1991140 196 96 8 92 +167.96 +/- 35.14
52788 ncm-et-13 2018-09-07 10:21 01:22:43 1854831 500 237 14 249 +166.66 +/- 20.97
52787 ncm-et-10 2018-09-07 10:14 01:16:30 1981538 500 243 21 236 +165.8 +/- 21.86
52786 ncm-et-4 2018-09-07 10:14 01:17:11 1991297 500 218 11 271 +153.02 +/- 19.71
52785 ncm-et-15 2018-09-07 10:13 01:15:46 1982322 500 225 11 264 +158.93 +/- 20.07
52784 ncm-et-9 2018-09-07 10:12 01:15:56 1990349 500 235 12 253 +166.66 +/- 20.69
52783 ncm-et-3 2018-09-07 10:11 01:16:12 1988769 500 216 18 266 +145.54 +/- 20.18
52782 ncm-et-13 2018-09-07 08:58 01:21:43 1857725 500 216 14 270 +148.85 +/- 19.86
52781 ncm-et-10 2018-09-07 08:57 01:16:01 1982321 500 200 17 283 +133.34 +/- 19.29
52780 ncm-et-4 2018-09-07 08:55 01:17:20 1990190 500 232 19 249 +158.08 +/- 21.1
52779 ncm-et-15 2018-09-07 08:55 01:17:25 1937397 500 226 15 259 +156.39 +/- 20.46
52778 ncm-et-3 2018-09-07 08:54 01:15:48 1990980 500 230 16 254 +158.93 +/- 20.76
52777 ncm-et-9 2018-09-07 08:54 01:17:17 1986253 500 233 19 248 +158.93 +/- 21.16
52776 ncm-et-9 2018-09-07 07:38 01:15:00 1986563 500 229 14 257 +159.78 +/- 20.54
52775 ncm-et-13 2018-09-07 07:38 01:19:04 1927303 500 226 21 253 +151.35 +/- 20.94
52774 ncm-et-10 2018-09-07 07:38 01:18:35 1920972 500 223 14 263 +154.7 +/- 20.22
52773 ncm-et-15 2018-09-07 07:37 01:16:26 1980760 500 226 18 256 +153.86 +/- 20.7
52772 ncm-et-4 2018-09-07 07:37 01:16:54 1989402 500 229 13 258 +160.64 +/- 20.45
52771 ncm-et-3 2018-09-07 07:37 01:16:01 1988613 500 225 20 255 +151.35 +/- 20.81
6754 ncm-et-7 2018-03-09 22:52 00:28:22 2026227 192 86 7 99 +151.96 +/- 33.36
6753 ncm-et-16 2018-03-09 22:52 00:28:42 2018232 192 90 4 98 +167.5 +/- 33.21
6752 ncm-et-4 2018-03-09 22:49 00:30:52 2024263 207 98 6 103 +165.99 +/- 32.72
6751 ncm-et-9 2018-03-09 22:49 00:31:25 2025572 209 101 7 101 +168.3 +/- 33.27
6750 ncm-et-15 2018-03-09 22:48 00:32:29 2018558 203 91 4 108 +159.18 +/- 31.35
6749 ncm-et-8 2018-03-09 22:47 00:32:56 1976451 208 95 7 106 +156.84 +/- 32.23
6748 ncm-et-3 2018-03-09 22:47 00:32:58 2025900 216 90 10 116 +135.1 +/- 30.76
6747 ncm-et-13 2018-03-09 22:47 00:33:06 2025900 217 88 5 124 +140.01 +/- 28.86
6746 ncm-et-11 2018-03-09 22:47 00:33:25 2018721 216 90 8 118 +138.84 +/- 30.23
6745 ncm-et-5 2018-03-09 22:47 00:33:31 2025083 221 93 4 124 +148.32 +/- 28.86
6744 ncm-et-14 2018-03-09 22:46 00:33:59 2018395 226 96 7 123 +144.64 +/- 29.5
6743 ncm-et-12 2018-03-09 22:46 00:34:21 2019045 224 104 2 118 +170.74 +/- 29.71
6742 ncm-et-6 2018-03-09 22:45 00:34:59 2026227 232 106 15 111 +143.99 +/- 32.17
6741 ncm-et-10 2018-03-09 22:44 00:36:12 2016609 237 92 13 132 +120.41 +/- 28.76
6740 ncm-et-7 2018-03-09 21:32 01:19:11 1946461 500 220 15 265 +151.35 +/- 20.15
6739 ncm-et-9 2018-03-09 21:31 01:16:24 2026718 500 194 13 293 +131.74 +/- 18.67
6738 ncm-et-15 2018-03-09 21:31 01:15:43 2018883 500 242 8 250 +176.33 +/- 20.71
6737 ncm-et-11 2018-03-09 21:31 01:14:56 2011930 500 226 16 258 +155.54 +/- 20.54
6736 ncm-et-16 2018-03-09 21:31 01:19:51 1919599 500 231 11 258 +164.07 +/- 20.39
6735 ncm-et-6 2018-03-09 21:30 01:13:53 2024918 500 224 20 256 +150.51 +/- 20.75
6734 ncm-et-4 2018-03-09 21:30 01:18:05 2025081 500 219 18 263 +148.02 +/- 20.34
6733 ncm-et-13 2018-03-09 21:30 01:15:38 2026227 500 239 17 244 +165.8 +/- 21.33
6732 ncm-et-5 2018-03-09 21:30 01:15:28 2025245 500 221 13 266 +153.86 +/- 20.03
6731 ncm-et-12 2018-03-09 21:30 01:14:50 2017586 500 216 14 270 +148.85 +/- 19.86
6730 ncm-et-8 2018-03-09 21:30 01:16:36 2020353 500 232 18 250 +158.93 +/- 21.03
6729 ncm-et-3 2018-03-09 21:29 01:17:11 2025572 500 221 18 261 +149.68 +/- 20.44
6728 ncm-et-10 2018-03-09 21:29 01:14:18 2020022 500 198 20 282 +129.35 +/- 19.42
6727 ncm-et-14 2018-03-09 21:29 01:16:28 2020021 500 222 22 256 +147.19 +/- 20.8

Commit

Commit ID 1093047e7d72ed0c82e143c2cc0af9ef7b0380ed
Author Alain SAVARD
Date 2018-03-09 20:47:44 UTC
Two steps slider threats on queen Allow a potential slider threat from a square currently occupied by a harmless attacker, just as the recent "knight on queen" patch. Also from not completely safe squares, use the mobilityArea instead of excluding all pawns for both SlidersOnQueen and KnightOnQueen We now compute the potential sliders threat on queen only if opponent has one queen. Run as SPRT [0,4] since it is some kind of simplification but maybe not clearly one. STC: http://tests.stockfishchess.org/tests/view/5aa1ddf10ebc590297cb63d8 LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 22997 W: 4817 L: 4570 D: 13610 LTC: http://tests.stockfishchess.org/tests/view/5aa1fe6b0ebc590297cb63e5 LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 11926 W: 1891 L: 1705 D: 8330 After this patch is committed, we may try to: • re-introduce some "threat by queen" bonus to make Stockfish's queen more aggressive (attacking aspect) • introduce a concept of "queen overload" to force the opponent queen into passivity and protecting duties (defensive aspect) • more generally, re-tune the queen mobility array since patches in the last three months have affected a lot the location/activity of queens. Closes https://github.com/official-stockfish/Stockfish/pull/1473 bench: 5788691
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