Dev Builds » 20140616-1950

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 06:02:59 1983828 2369 140 840 1389 -105.82 +/- 8.76
ncm-et-4 06:03:36 1962091 2354 162 828 1364 -101.05 +/- 8.91
ncm-et-5 01:48:12 2024345 724 58 235 431 -86.69 +/- 15.82
ncm-et-6 01:47:54 2025408 709 45 249 415 -102.87 +/- 16.08
ncm-et-7 01:47:58 2003959 714 45 263 406 -109.57 +/- 16.36
ncm-et-8 01:48:16 2008642 714 56 235 423 -89.0 +/- 15.98
ncm-et-9 06:03:24 1991439 2392 157 846 1389 -102.99 +/- 8.81
ncm-et-10 06:03:02 1986417 2397 161 844 1392 -101.82 +/- 8.8
ncm-et-11 01:47:55 2018073 706 47 247 412 -101.19 +/- 16.17
ncm-et-12 01:48:21 1964654 688 45 235 408 -98.51 +/- 16.18
ncm-et-13 06:03:18 1991403 2380 151 887 1342 -111.08 +/- 9.01
ncm-et-14 01:48:00 2019289 723 45 268 410 -110.77 +/- 16.28
ncm-et-15 06:02:32 1988191 2407 153 834 1420 -101.05 +/- 8.67
ncm-et-16 01:48:19 2019289 724 37 247 440 -103.75 +/- 15.35
20001 1302 7058 11641 -102.89 +/- 3.04

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
89432 ncm-et-4 2019-07-18 16:17 00:20:08 1963697 129 11 44 74 -90.9 +/- 38.73
89431 ncm-et-3 2019-07-18 16:12 00:25:02 1961842 162 14 49 99 -76.27 +/- 32.94
89430 ncm-et-9 2019-07-18 16:11 00:25:34 1973744 172 9 60 103 -106.21 +/- 31.98
89429 ncm-et-13 2019-07-18 16:11 00:25:53 1968313 169 7 72 90 -140.87 +/- 34.92
89428 ncm-et-10 2019-07-18 16:10 00:26:47 1970886 175 12 68 95 -115.23 +/- 34.3
89427 ncm-et-15 2019-07-18 16:07 00:29:33 1964770 193 12 76 105 -119.74 +/- 32.52
89426 ncm-et-3 2019-07-18 14:56 01:14:56 1963686 500 31 176 293 -103.73 +/- 19.12
89425 ncm-et-4 2019-07-18 14:54 01:21:18 1868580 500 30 171 299 -100.71 +/- 18.81
89424 ncm-et-9 2019-07-18 14:54 01:15:54 1971110 500 27 182 291 -111.37 +/- 19.14
89423 ncm-et-13 2019-07-18 14:54 01:16:08 1970638 500 32 183 285 -108.3 +/- 19.53
89422 ncm-et-10 2019-07-18 14:52 01:17:00 1961845 500 34 170 296 -96.94 +/- 19.03
89421 ncm-et-15 2019-07-18 14:51 01:14:45 1971438 500 28 179 293 -108.3 +/- 19.06
89420 ncm-et-13 2019-07-18 13:37 01:16:14 1986448 500 36 206 258 -123.02 +/- 20.93
89419 ncm-et-3 2019-07-18 13:36 01:18:25 1964928 500 26 179 295 -109.83 +/- 18.92
89418 ncm-et-10 2019-07-18 13:36 01:14:52 1973521 500 30 177 293 -105.25 +/- 19.1
89417 ncm-et-4 2019-07-18 13:36 01:17:31 1955589 500 31 184 285 -109.83 +/- 19.51
89416 ncm-et-9 2019-07-18 13:36 01:17:39 1970494 500 47 161 292 -80.63 +/- 19.4
89415 ncm-et-15 2019-07-18 13:34 01:16:15 1970508 500 37 168 295 -93.2 +/- 19.13
89414 ncm-et-15 2019-07-18 12:19 01:13:43 1982221 500 33 160 307 -90.22 +/- 18.48
89413 ncm-et-13 2019-07-18 12:19 01:16:53 1974985 500 30 171 299 -100.71 +/- 18.81
89412 ncm-et-10 2019-07-18 12:19 01:16:25 1971719 500 39 180 281 -100.71 +/- 19.84
89411 ncm-et-3 2019-07-18 12:19 01:16:45 1961535 500 34 174 292 -99.95 +/- 19.22
89410 ncm-et-4 2019-07-18 12:18 01:16:22 1974338 500 34 188 278 -110.6 +/- 19.91
89409 ncm-et-9 2019-07-18 12:18 01:16:12 1984109 500 29 170 301 -100.71 +/- 18.69
22628 ncm-et-12 2018-04-24 18:43 00:29:19 1973441 188 10 61 117 -96.67 +/- 29.65
22627 ncm-et-6 2018-04-24 18:41 00:31:26 2025408 209 10 73 126 -108.09 +/- 28.76
22626 ncm-et-11 2018-04-24 18:40 00:31:36 2015800 206 15 72 119 -98.71 +/- 30.31
22625 ncm-et-13 2018-04-24 18:40 00:32:25 2022467 211 13 77 121 -108.81 +/- 29.96
22624 ncm-et-7 2018-04-24 18:40 00:32:37 2025409 214 19 84 111 -108.97 +/- 32.1
22623 ncm-et-10 2018-04-24 18:40 00:32:35 2019859 222 10 79 133 -111.68 +/- 27.99
22622 ncm-et-15 2018-04-24 18:40 00:32:55 2021488 214 16 72 126 -93.08 +/- 29.34
22621 ncm-et-3 2018-04-24 18:39 00:32:52 2024427 207 14 83 110 -120.41 +/- 31.96
22620 ncm-et-8 2018-04-24 18:39 00:32:59 2022629 214 14 77 123 -105.4 +/- 29.75
22619 ncm-et-9 2018-04-24 18:39 00:33:16 2025735 220 16 73 131 -92.12 +/- 28.67
22618 ncm-et-16 2018-04-24 18:38 00:33:58 2018882 224 13 83 128 -112.33 +/- 29.09
22617 ncm-et-14 2018-04-24 18:38 00:34:01 2019533 223 12 88 123 -123.34 +/- 29.84
22616 ncm-et-4 2018-04-24 18:38 00:34:18 1986403 225 13 84 128 -113.51 +/- 29.12
22615 ncm-et-5 2018-04-24 18:38 00:34:55 2024754 224 18 81 125 -100.42 +/- 29.85
22614 ncm-et-3 2018-04-24 17:23 01:14:59 2026554 500 21 179 300 -113.68 +/- 18.56
22613 ncm-et-7 2018-04-24 17:23 01:15:21 1982510 500 26 179 295 -109.83 +/- 18.92
22612 ncm-et-6 2018-04-24 17:23 01:16:28 2025409 500 35 176 289 -100.71 +/- 19.39
22611 ncm-et-14 2018-04-24 17:23 01:13:59 2019045 500 33 180 287 -105.25 +/- 19.45
22610 ncm-et-9 2018-04-24 17:23 01:14:49 2023447 500 29 200 271 -123.81 +/- 20.17
22609 ncm-et-5 2018-04-24 17:23 01:13:17 2023936 500 40 154 306 -80.63 +/- 18.64
22608 ncm-et-10 2018-04-24 17:23 01:15:23 2020673 500 36 170 294 -95.44 +/- 19.16
22607 ncm-et-15 2018-04-24 17:23 01:15:21 2018721 500 27 179 294 -109.07 +/- 18.99
22606 ncm-et-13 2018-04-24 17:23 01:15:45 2025572 500 33 178 289 -103.73 +/- 19.35
22605 ncm-et-16 2018-04-24 17:23 01:14:21 2019696 500 24 164 312 -99.95 +/- 18.05
22604 ncm-et-11 2018-04-24 17:23 01:16:19 2020347 500 32 175 293 -102.22 +/- 19.14
22603 ncm-et-8 2018-04-24 17:23 01:15:17 1994656 500 42 158 300 -82.1 +/- 18.96
22602 ncm-et-12 2018-04-24 17:23 01:19:02 1955867 500 35 174 291 -99.2 +/- 19.29
22601 ncm-et-4 2018-04-24 17:23 01:13:59 2023939 500 43 157 300 -80.63 +/- 18.97

Commit

Commit ID 55a3e0af8d0d1e169cc8b16541ffeb41e157b66e
Author Eelco de Groot
Date 2014-06-16 19:50:14 UTC
Don't special case for abs(beta) >= VALUE_MATE_IN_MAX_PLY Remove from the search this special case and apply null search and razoring also in mate positions. Tested in no-regression mode and passed both STC LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 65431 W: 10860 L: 10810 D: 43761 and LTC LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 34928 W: 4814 L: 4713 D: 25401 This patch kicks in only in mate positions and in these cases it seems beneficial in finding mates faster as Yery Spark measured on the Chest mate suite: Total number of positions 6425 Fixed nodes 200K per position master: 1049 new: 1154 And also the 5446 'hard' positions again with 2000K nodes (those not found by both engines in 200K nodes): master: 1069 new: 1395 bench: 7710548
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