Dev Builds » 20161008-0438

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 05:58:22 1983819 2426 634 133 1659 +72.8 +/- 7.55
ncm-et-4 05:58:11 1978030 2412 662 110 1640 +80.95 +/- 7.57
ncm-et-5 01:52:12 2022140 765 200 36 529 +75.66 +/- 13.23
ncm-et-6 01:51:31 2024590 772 198 45 529 +69.78 +/- 13.4
ncm-et-7 01:52:14 2021117 773 195 32 546 +74.38 +/- 12.8
ncm-et-8 01:52:06 1990917 781 218 29 534 +85.78 +/- 13.15
ncm-et-9 05:58:14 1990695 2454 707 119 1628 +84.9 +/- 7.71
ncm-et-10 05:58:26 1983512 2432 692 127 1613 +82.22 +/- 7.76
ncm-et-11 01:52:13 2011492 770 223 29 518 +89.46 +/- 13.47
ncm-et-12 01:52:02 1953580 762 202 37 523 +76.44 +/- 13.38
ncm-et-13 05:58:32 1990881 2427 692 125 1610 +82.7 +/- 7.77
ncm-et-14 01:52:18 2020510 772 196 31 545 +75.42 +/- 12.81
ncm-et-15 05:58:36 1986695 2454 665 125 1664 +77.72 +/- 7.56
20000 5484 978 13538 +79.64 +/- 2.65

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
66588 ncm-et-4 2019-01-18 18:28 00:21:46 1964765 149 37 7 105 +70.92 +/- 29.43
66587 ncm-et-3 2019-01-18 18:26 00:24:23 1958325 164 37 12 115 +53.38 +/- 28.65
66586 ncm-et-13 2019-01-18 18:26 00:24:24 1976075 164 51 9 104 +91.0 +/- 31.28
66585 ncm-et-10 2019-01-18 18:25 00:24:36 1966863 169 42 7 120 +73.01 +/- 27.27
66584 ncm-et-15 2019-01-18 18:25 00:24:48 1965227 174 55 3 116 +107.1 +/- 28.08
66583 ncm-et-9 2019-01-18 18:23 00:26:27 1977474 180 49 12 119 +72.45 +/- 28.94
66582 ncm-et-4 2019-01-18 17:13 01:13:50 1962919 500 141 23 336 +83.57 +/- 16.84
66581 ncm-et-10 2019-01-18 17:11 01:13:20 1964147 500 149 36 315 +79.9 +/- 18.14
66580 ncm-et-15 2019-01-18 17:10 01:13:56 1972202 500 140 24 336 +82.1 +/- 16.87
66579 ncm-et-3 2019-01-18 17:10 01:14:20 1967077 500 134 26 340 +76.25 +/- 16.72
66578 ncm-et-9 2019-01-18 17:10 01:12:46 1972967 500 157 20 323 +97.69 +/- 17.41
66577 ncm-et-13 2019-01-18 17:09 01:15:01 1981178 500 135 36 329 +69.71 +/- 17.46
66576 ncm-et-4 2019-01-18 15:58 01:13:49 1981001 500 129 13 358 +82.1 +/- 15.45
66575 ncm-et-10 2019-01-18 15:56 01:13:50 1963687 500 156 24 320 +93.95 +/- 17.66
66574 ncm-et-3 2019-01-18 15:56 01:13:28 1962151 500 139 26 335 +79.9 +/- 16.96
66573 ncm-et-13 2019-01-18 15:56 01:12:52 1967872 500 140 19 341 +85.78 +/- 16.49
66572 ncm-et-15 2019-01-18 15:55 01:13:57 1967864 500 152 26 322 +89.48 +/- 17.6
66571 ncm-et-9 2019-01-18 15:54 01:13:59 1969250 500 155 23 322 +93.95 +/- 17.53
66570 ncm-et-4 2019-01-18 14:41 01:16:34 1958322 500 138 23 339 +81.37 +/- 16.69
66569 ncm-et-15 2019-01-18 14:41 01:13:39 1974676 500 127 25 348 +71.89 +/- 16.29
66568 ncm-et-13 2019-01-18 14:41 01:13:59 1967541 500 152 24 324 +90.97 +/- 17.46
66567 ncm-et-9 2019-01-18 14:41 01:12:55 1972192 500 145 27 328 +83.57 +/- 17.33
66566 ncm-et-10 2019-01-18 14:40 01:14:42 1968776 500 146 19 335 +90.22 +/- 16.79
66565 ncm-et-3 2019-01-18 14:40 01:14:17 1965689 500 124 26 350 +68.99 +/- 16.21
11012 ncm-et-10 2018-03-22 22:41 00:38:35 2018883 263 74 14 175 +80.68 +/- 23.59
11011 ncm-et-3 2018-03-22 22:41 00:38:44 2025081 262 67 13 182 +72.65 +/- 22.56
11010 ncm-et-9 2018-03-22 22:41 00:39:01 2026227 274 75 12 187 +81.34 +/- 22.38
11009 ncm-et-4 2018-03-22 22:40 00:39:16 1993754 263 71 14 178 +76.51 +/- 23.2
11008 ncm-et-11 2018-03-22 22:40 00:39:21 2007991 270 78 14 178 +83.95 +/- 23.46
11007 ncm-et-8 2018-03-22 22:40 00:39:28 2021325 281 80 10 191 +88.41 +/- 22.04
11006 ncm-et-13 2018-03-22 22:40 00:39:31 2026719 263 74 15 174 +79.29 +/- 23.77
11005 ncm-et-7 2018-03-22 22:40 00:39:35 2016991 273 77 13 183 +82.99 +/- 22.9
11004 ncm-et-14 2018-03-22 22:40 00:39:34 2020184 272 70 12 190 +75.24 +/- 21.92
11003 ncm-et-15 2018-03-22 22:40 00:39:50 2020673 280 59 15 206 +55.05 +/- 20.45
11002 ncm-et-6 2018-03-22 22:40 00:40:03 2024263 272 61 20 191 +52.77 +/- 22.19
11001 ncm-et-5 2018-03-22 22:40 00:39:57 2021977 265 76 10 179 +88.39 +/- 22.89
11000 ncm-et-12 2018-03-22 22:39 00:40:13 1887301 262 61 14 187 +63.01 +/- 21.94
10999 ncm-et-6 2018-03-22 21:27 01:11:28 2024917 500 137 25 338 +79.17 +/- 16.79
10998 ncm-et-3 2018-03-22 21:26 01:13:10 2024591 500 133 30 337 +72.61 +/- 16.95
10997 ncm-et-8 2018-03-22 21:26 01:12:38 1960510 500 138 19 343 +84.31 +/- 16.39
10996 ncm-et-4 2018-03-22 21:26 01:12:56 2007422 500 146 30 324 +82.1 +/- 17.59
10995 ncm-et-11 2018-03-22 21:26 01:12:52 2014994 500 145 15 340 +92.46 +/- 16.42
10994 ncm-et-12 2018-03-22 21:26 01:11:49 2019859 500 141 23 336 +83.57 +/- 16.84
10993 ncm-et-10 2018-03-22 21:26 01:13:23 2018720 500 125 27 348 +68.99 +/- 16.33
10992 ncm-et-7 2018-03-22 21:26 01:12:39 2025244 500 118 19 363 +69.71 +/- 15.37
10991 ncm-et-15 2018-03-22 21:26 01:12:26 2019533 500 132 32 336 +70.44 +/- 17.04
10990 ncm-et-9 2018-03-22 21:26 01:13:06 2026063 500 126 25 349 +71.16 +/- 16.24
10989 ncm-et-13 2018-03-22 21:26 01:12:45 2025901 500 140 22 338 +83.57 +/- 16.72
10988 ncm-et-14 2018-03-22 21:26 01:12:44 2020836 500 126 19 355 +75.52 +/- 15.78
10987 ncm-et-5 2018-03-22 21:26 01:12:15 2022303 500 124 26 350 +68.99 +/- 16.21

Commit

Commit ID 073eed590edf992ed3aeb6c754cb0b3b394fe79d
Author atumanian
Date 2016-10-08 04:38:36 UTC
Optimisation of Position::see and Position::see_sign Stephane's patch removes the only usage of Position::see, where the returned value isn't immediately compared with a value. So I replaced this function by its optimised and more specific version see_ge. This function also supersedes the function Position::see_sign. bool Position::see_ge(Move m, Value v) const; This function tests if the SEE of a move is greater or equal than a given value. We use forward iteration on captures instread of backward one, therefore we don't need the swapList array. Also we stop as soon as we have enough information to obtain the result, avoiding unnecessary calls to the min_attacker function. Speed tests (Windows 7), 20 runs for each engine: Test engine: mean 866648, st. dev. 5964 Base engine: mean 846751, st. dev. 22846 Speedup: 1.023 Speed test by Stephane Nicolet Fishtest STC test: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 26040 W: 4675 L: 4442 D: 16923 http://tests.stockfishchess.org/tests/view/57f648990ebc59038170fa03 No functional change.
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