Dev Builds » 20180224-1212

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 06:55:23 2004917 2683 1226 81 1376 +158.41 +/- 8.88
ncm-et-4 06:55:52 1998281 2683 1201 103 1379 +151.03 +/- 8.92
ncm-et-5 02:33:49 2024319 1003 440 40 523 +146.7 +/- 14.46
ncm-et-6 02:34:04 2025408 996 440 28 528 +152.88 +/- 14.24
ncm-et-7 02:34:54 2009030 997 428 34 535 +145.2 +/- 14.18
ncm-et-8 02:32:15 2009666 999 479 28 492 +169.03 +/- 14.93
ncm-et-9 06:55:18 2003835 2675 1170 99 1406 +147.35 +/- 8.79
ncm-et-10 06:56:05 1986086 2639 1215 104 1320 +155.96 +/- 9.15
ncm-et-11 02:33:14 2017342 982 457 36 489 +159.24 +/- 15.03
ncm-et-12 02:32:31 2019210 1000 456 48 496 +150.51 +/- 15.02
ncm-et-13 04:20:52 1988140 1687 766 64 857 +153.91 +/- 11.33
ncm-et-15 04:21:05 1958190 1656 752 56 848 +155.67 +/- 11.35
20000 9030 721 10249 +153.63 +/- 3.27

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
53508 ncm-et-10 2018-09-12 23:27 00:22:51 1982322 139 62 7 70 +145.41 +/- 40.18
53507 ncm-et-15 2018-09-12 23:24 00:25:21 1935977 156 70 6 80 +151.45 +/- 37.23
53506 ncm-et-3 2018-09-12 23:24 00:25:53 1989875 162 79 4 79 +174.09 +/- 37.41
53505 ncm-et-9 2018-09-12 23:23 00:27:00 1988612 173 76 5 92 +151.52 +/- 34.25
53504 ncm-et-4 2018-09-12 23:21 00:28:16 1990981 183 75 7 101 +135.59 +/- 32.65
53503 ncm-et-13 2018-09-12 23:20 00:29:25 1988613 187 93 8 86 +170.39 +/- 36.46
53502 ncm-et-10 2018-09-12 22:05 01:20:38 1955777 500 233 15 252 +162.35 +/- 20.84
53501 ncm-et-13 2018-09-12 22:03 01:15:57 1989085 500 239 16 245 +166.66 +/- 21.25
53500 ncm-et-4 2018-09-12 22:03 01:17:24 1990666 500 225 18 257 +153.02 +/- 20.65
53499 ncm-et-3 2018-09-12 22:03 01:19:45 1987350 500 239 11 250 +171.02 +/- 20.82
53498 ncm-et-15 2018-09-12 22:03 01:20:38 1933394 500 220 19 261 +148.02 +/- 20.47
53497 ncm-et-9 2018-09-12 22:03 01:19:06 1989243 500 216 16 268 +147.19 +/- 20.02
53496 ncm-et-10 2018-09-12 20:46 01:17:52 1982792 500 239 22 239 +161.49 +/- 21.72
53495 ncm-et-4 2018-09-12 20:46 01:16:03 1989243 500 240 19 241 +164.93 +/- 21.54
53494 ncm-et-15 2018-09-12 20:44 01:17:23 1980442 500 239 14 247 +168.4 +/- 21.08
53493 ncm-et-3 2018-09-12 20:44 01:17:40 1990191 500 215 20 265 +143.07 +/- 20.28
53492 ncm-et-9 2018-09-12 20:44 01:17:26 1986881 500 225 22 253 +149.68 +/- 20.96
53491 ncm-et-13 2018-09-12 20:43 01:18:40 1986409 500 213 26 261 +136.56 +/- 20.62
53490 ncm-et-4 2018-09-12 19:26 01:19:05 1988769 500 230 24 246 +152.18 +/- 21.37
53489 ncm-et-3 2018-09-12 19:26 01:17:28 1987666 500 223 14 263 +154.7 +/- 20.22
53488 ncm-et-9 2018-09-12 19:26 01:17:29 1987194 500 230 15 255 +159.78 +/- 20.67
53487 ncm-et-10 2018-09-12 19:25 01:19:41 1955909 500 218 14 268 +150.51 +/- 19.96
53486 ncm-et-13 2018-09-12 19:25 01:16:50 1988455 500 221 14 265 +153.02 +/- 20.12
53485 ncm-et-15 2018-09-12 19:25 01:17:43 1982948 500 223 17 260 +152.18 +/- 20.47
2809 ncm-et-9 2018-02-24 19:04 00:00:58 2025899 2 0 0 2 -0.0 +/- 15.22
2808 ncm-et-5 2018-02-24 19:04 00:01:16 2022795 3 0 0 3 -0.0 +/- 10.15
2807 ncm-et-3 2018-02-24 19:02 00:03:40 2026883 21 10 2 9 +139.38 +/- 120.06
2806 ncm-et-11 2018-02-24 17:52 01:13:46 2018883 482 231 14 237 +168.49 +/- 21.55
2805 ncm-et-8 2018-02-24 17:49 01:16:03 2023119 499 236 12 251 +167.92 +/- 20.79
2804 ncm-et-12 2018-02-24 17:49 01:15:48 2017584 500 226 20 254 +152.18 +/- 20.86
2803 ncm-et-7 2018-02-24 17:48 01:16:43 2016811 497 216 18 263 +146.53 +/- 20.32
2802 ncm-et-10 2018-02-24 17:48 01:17:10 2020674 500 241 16 243 +168.4 +/- 21.36
2801 ncm-et-6 2018-02-24 17:48 01:17:15 2025081 496 212 16 268 +145.19 +/- 19.99
2800 ncm-et-4 2018-02-24 17:47 01:18:12 2004947 500 216 21 263 +143.07 +/- 20.41
2799 ncm-et-9 2018-02-24 17:47 01:16:35 2025082 500 217 21 262 +143.89 +/- 20.46
2798 ncm-et-5 2018-02-24 17:47 01:16:36 2024427 500 204 19 277 +134.95 +/- 19.65
2797 ncm-et-3 2018-02-24 17:46 01:14:58 2026228 500 219 21 260 +145.54 +/- 20.57
2796 ncm-et-8 2018-02-24 16:32 01:16:12 1996214 500 243 16 241 +170.15 +/- 21.47
2795 ncm-et-11 2018-02-24 16:31 01:19:28 2015801 500 226 22 252 +150.51 +/- 21.01
2794 ncm-et-12 2018-02-24 16:31 01:16:43 2020836 500 230 28 242 +148.85 +/- 21.66
2793 ncm-et-6 2018-02-24 16:30 01:16:49 2025735 500 228 12 260 +160.64 +/- 20.32
2792 ncm-et-5 2018-02-24 16:30 01:15:57 2025736 500 236 21 243 +159.78 +/- 21.48
2791 ncm-et-7 2018-02-24 16:29 01:18:11 2001249 500 212 16 272 +143.89 +/- 19.82
2790 ncm-et-10 2018-02-24 16:29 01:17:53 2019047 500 222 30 248 +140.62 +/- 21.37
2789 ncm-et-9 2018-02-24 16:29 01:16:44 2023937 500 206 20 274 +135.76 +/- 19.82
2788 ncm-et-4 2018-02-24 16:29 01:16:52 2025081 500 215 14 271 +148.02 +/- 19.81
2787 ncm-et-3 2018-02-24 16:29 01:15:59 2026226 500 241 9 250 +174.55 +/- 20.75

Commit

Commit ID 5d57bb467a4d703f480c87f58687705e2f56e338
Author DU-jdto
Date 2018-02-24 12:12:04 UTC
Simplification: do razoring only for depth 1 The razoring heuristic is quite a drastic pruning technique, using a depth 0 search at internal nodes of the search tree to estimate the true value of depth n nodes. This patch limits this razoring to the case of internal nodes of depth 1. Author: Jarrod Torriero (DU-jdto) STC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 8043 W: 1865 L: 1716 D: 4462 http://tests.stockfishchess.org/tests/view/5a90a9290ebc590297cc86c1 LTC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 32890 W: 5577 L: 5476 D: 21837 http://tests.stockfishchess.org/tests/view/5a90c8510ebc590297cc86d5 Opportunities opened by this patch: it would be interesting to know if it brings Elo to re-introduce razoring or soft razoring at depth >= 2, maybe using a larger margin to compensate for the increased pruning effect. Bench: 5227124
Copyright 2011–2024 Next Chess Move LLC