Dev Builds » 20180508-2342

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 06:06:53 2000819 2417 1085 75 1257 +154.65 +/- 9.28
ncm-et-4 06:05:56 1999676 2411 1143 71 1197 +166.07 +/- 9.56
ncm-et-5 01:47:06 2024345 702 334 14 354 +170.96 +/- 17.43
ncm-et-6 01:49:55 2024673 715 334 22 359 +162.51 +/- 17.47
ncm-et-7 01:49:44 1999449 734 310 20 404 +145.17 +/- 16.15
ncm-et-8 01:46:40 1969357 697 320 20 357 +159.96 +/- 17.44
ncm-et-9 06:02:53 2001474 2388 1145 65 1178 +169.39 +/- 9.63
ncm-et-10 06:04:57 1986900 2382 1114 68 1200 +163.69 +/- 9.52
ncm-et-11 01:48:13 2018152 727 318 20 389 +151.31 +/- 16.56
ncm-et-12 01:48:26 1990503 709 359 16 334 +183.41 +/- 18.16
ncm-et-13 06:05:12 1969285 2348 1100 66 1182 +164.23 +/- 9.6
ncm-et-14 01:49:27 2018476 700 330 18 352 +166.54 +/- 17.57
ncm-et-15 06:04:48 1979809 2380 1136 69 1175 +167.67 +/- 9.66
ncm-et-16 01:49:12 1954166 690 305 21 364 +152.01 +/- 17.2
20000 9333 565 10102 +163.38 +/- 3.28

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
50796 ncm-et-13 2018-08-22 15:59 00:19:12 1986411 127 59 6 62 +154.42 +/- 42.85
50795 ncm-et-15 2018-08-22 15:54 00:24:44 1981851 154 70 2 82 +164.74 +/- 35.79
50794 ncm-et-10 2018-08-22 15:53 00:25:16 1983734 166 74 5 87 +153.72 +/- 35.36
50793 ncm-et-9 2018-08-22 15:50 00:28:24 1990034 185 91 6 88 +172.55 +/- 35.72
50792 ncm-et-4 2018-08-22 15:50 00:27:57 1988612 183 92 5 86 +179.64 +/- 36.08
50791 ncm-et-3 2018-08-22 15:50 00:28:27 1989243 185 76 9 100 +131.81 +/- 33.16
50790 ncm-et-13 2018-08-22 14:42 01:16:25 1989559 500 232 12 256 +164.07 +/- 20.53
50789 ncm-et-15 2018-08-22 14:35 01:18:01 1898294 500 241 16 243 +168.4 +/- 21.36
50788 ncm-et-10 2018-08-22 14:34 01:18:28 1949396 500 219 17 264 +148.85 +/- 20.26
50787 ncm-et-3 2018-08-22 14:34 01:15:17 1990034 500 234 17 249 +161.49 +/- 21.05
50786 ncm-et-9 2018-08-22 14:34 01:15:32 1989717 500 223 16 261 +153.02 +/- 20.39
50785 ncm-et-4 2018-08-22 14:33 01:15:42 1990506 500 244 13 243 +173.67 +/- 21.27
50784 ncm-et-13 2018-08-22 13:20 01:20:39 1872267 500 234 18 248 +160.64 +/- 21.13
50783 ncm-et-10 2018-08-22 13:17 01:15:15 1985461 500 245 13 242 +174.55 +/- 21.33
50782 ncm-et-3 2018-08-22 13:17 01:15:25 1989718 500 226 12 262 +158.93 +/- 20.21
50781 ncm-et-4 2018-08-22 13:16 01:15:53 1991455 500 242 17 241 +168.4 +/- 21.49
50780 ncm-et-15 2018-08-22 13:16 01:17:21 1982165 500 228 10 262 +162.35 +/- 20.14
50779 ncm-et-9 2018-08-22 13:16 01:16:26 1990191 500 252 16 232 +178.11 +/- 21.98
50778 ncm-et-15 2018-08-22 11:59 01:15:43 1981381 500 242 12 246 +172.78 +/- 21.07
50777 ncm-et-13 2018-08-22 11:59 01:19:40 1916493 500 243 10 247 +175.44 +/- 20.95
50776 ncm-et-3 2018-08-22 11:59 01:16:50 1986249 500 221 15 264 +152.18 +/- 20.2
50775 ncm-et-10 2018-08-22 11:59 01:17:10 1962119 500 222 11 267 +156.39 +/- 19.91
50774 ncm-et-9 2018-08-22 11:59 01:15:51 1989558 500 241 11 248 +172.78 +/- 20.93
50773 ncm-et-4 2018-08-22 11:59 01:16:14 1987509 500 229 14 257 +159.78 +/- 20.54
27878 ncm-et-16 2018-05-09 04:53 00:29:14 1974985 190 87 6 97 +158.22 +/- 33.65
27877 ncm-et-5 2018-05-09 04:52 00:30:21 2024100 202 101 5 96 +179.56 +/- 34.02
27876 ncm-et-9 2018-05-09 04:51 00:30:52 2025572 203 96 5 102 +167.65 +/- 32.73
27875 ncm-et-8 2018-05-09 04:51 00:31:20 1913633 197 86 6 105 +149.72 +/- 32.07
27874 ncm-et-12 2018-05-09 04:51 00:31:58 2001168 209 106 8 95 +176.73 +/- 34.64
27873 ncm-et-14 2018-05-09 04:50 00:32:07 2018558 200 85 5 110 +147.19 +/- 30.99
27872 ncm-et-6 2018-05-09 04:49 00:32:56 2024102 215 109 6 100 +181.28 +/- 33.48
27871 ncm-et-10 2018-05-09 04:49 00:33:26 2020347 216 103 3 110 +174.09 +/- 31.14
27870 ncm-et-11 2018-05-09 04:49 00:33:57 2018396 227 95 7 125 +142.12 +/- 29.19
27869 ncm-et-4 2018-05-09 04:48 00:34:20 2023119 228 102 8 118 +152.3 +/- 30.49
27868 ncm-et-15 2018-05-09 04:48 00:34:27 2016122 226 111 9 106 +168.98 +/- 32.7
27867 ncm-et-13 2018-05-09 04:48 00:34:16 2025408 221 98 9 114 +148.32 +/- 31.15
27866 ncm-et-7 2018-05-09 04:48 00:34:29 2000652 234 98 5 131 +146.13 +/- 28.18
27865 ncm-et-3 2018-05-09 04:47 00:35:47 2025408 232 95 9 128 +135.23 +/- 28.99
27864 ncm-et-8 2018-05-09 03:35 01:15:20 2025081 500 234 14 252 +164.07 +/- 20.81
27863 ncm-et-9 2018-05-09 03:35 01:15:48 2023774 500 242 11 247 +173.67 +/- 20.98
27862 ncm-et-5 2018-05-09 03:34 01:16:45 2024590 500 233 9 258 +167.53 +/- 20.32
27861 ncm-et-11 2018-05-09 03:33 01:14:16 2017909 500 223 13 264 +155.54 +/- 20.14
27860 ncm-et-12 2018-05-09 03:33 01:16:28 1979839 500 253 8 239 +186.25 +/- 21.32
27859 ncm-et-15 2018-05-09 03:32 01:14:32 2019046 500 244 20 236 +167.53 +/- 21.84
27858 ncm-et-10 2018-05-09 03:32 01:15:22 2020347 500 251 19 230 +174.55 +/- 22.16
27857 ncm-et-16 2018-05-09 03:32 01:19:58 1933347 500 218 15 267 +149.68 +/- 20.04
27856 ncm-et-13 2018-05-09 03:32 01:15:00 2025573 500 234 11 255 +166.66 +/- 20.55
27855 ncm-et-14 2018-05-09 03:32 01:17:20 2018395 500 245 13 242 +174.55 +/- 21.33
27854 ncm-et-7 2018-05-09 03:32 01:15:15 1998247 500 212 15 273 +144.72 +/- 19.74
27853 ncm-et-6 2018-05-09 03:31 01:16:59 2025244 500 225 16 259 +154.7 +/- 20.49
27852 ncm-et-4 2018-05-09 03:31 01:15:50 2016860 500 234 14 252 +164.07 +/- 20.81
27851 ncm-et-3 2018-05-09 03:30 01:15:07 2024264 500 233 13 254 +164.07 +/- 20.67

Commit

Commit ID 4d647428d8f6b02a404e6b7fda5dbbf17090f271
Author Joost VandeVondele
Date 2018-05-08 23:42:34 UTC
Remove goto, limit skipping to NMP This patch simplifies the control flow in search(), removing an if and a goto. A side effect of the patch is that Stockfish is now a little bit more selective at low depths, because we allow razoring, futility pruning and probcut pruning after a null move. passed STC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 32035 W: 6523 L: 6422 D: 19090 http://tests.stockfishchess.org/tests/view/5af142ca0ebc597fb3d39bb6 passed LTC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 41431 W: 6187 L: 6097 D: 29147 http://tests.stockfishchess.org/tests/view/5af148770ebc597fb3d39bc1 Ideas for further work: • Use the nodes credit opened by the patch (the increased selectivity) to try somewhat higher razoring, futility or probcut margins at [0..4]. Bench: 4855031
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