Dev Builds » 20171211-1427

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 07:12:15 2005428 2939 1146 109 1684 +128.09 +/- 7.89
ncm-et-4 07:12:11 1982270 2902 1136 91 1675 +130.98 +/- 7.87
ncm-et-5 03:05:12 2002432 1255 497 39 719 +132.92 +/- 12.03
ncm-et-6 03:04:53 2027267 1255 484 33 738 +130.69 +/- 11.74
ncm-et-7 03:05:00 1972682 1218 493 41 684 +135.4 +/- 12.42
ncm-et-8 03:05:11 1977851 1242 496 38 708 +134.45 +/- 12.13
ncm-et-9 07:12:19 2003699 2926 1201 88 1637 +139.15 +/- 8.01
ncm-et-10 07:12:04 1994249 2929 1131 94 1704 +128.57 +/- 7.79
ncm-et-13 04:07:14 1987157 1668 658 60 950 +130.35 +/- 10.52
ncm-et-15 04:07:11 1981029 1666 666 41 959 +137.03 +/- 10.34
20000 7908 634 11458 +132.42 +/- 3.01

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
54588 ncm-et-9 2018-09-21 03:30 00:24:09 1989874 159 68 4 87 +148.23 +/- 34.93
54587 ncm-et-10 2018-09-21 03:30 00:24:16 1980912 161 66 8 87 +131.04 +/- 35.59
54586 ncm-et-15 2018-09-21 03:29 00:24:43 1981694 166 66 9 91 +124.35 +/- 34.78
54585 ncm-et-4 2018-09-21 03:29 00:24:41 1990665 170 70 7 93 +135.19 +/- 34.17
54584 ncm-et-3 2018-09-21 03:29 00:25:22 1991139 176 57 4 115 +107.97 +/- 28.64
54583 ncm-et-13 2018-09-21 03:29 00:25:24 1983899 168 67 8 93 +127.44 +/- 34.22
54582 ncm-et-9 2018-09-21 02:15 01:14:10 1987665 500 214 18 268 +143.89 +/- 20.08
54581 ncm-et-10 2018-09-21 02:14 01:14:24 1968500 500 176 19 305 +112.91 +/- 18.26
54580 ncm-et-13 2018-09-21 02:14 01:13:32 1988454 500 207 17 276 +138.99 +/- 19.64
54579 ncm-et-3 2018-09-21 02:14 01:13:42 1989875 500 197 18 285 +130.15 +/- 19.22
54578 ncm-et-15 2018-09-21 02:14 01:14:20 1981694 500 201 10 289 +139.81 +/- 18.76
54577 ncm-et-4 2018-09-21 02:14 01:14:33 1988614 500 195 19 286 +127.76 +/- 19.2
54576 ncm-et-15 2018-09-21 01:00 01:12:35 1979817 500 193 12 295 +131.74 +/- 18.53
54575 ncm-et-13 2018-09-21 01:00 01:13:33 1987982 500 193 14 293 +130.15 +/- 18.7
54574 ncm-et-3 2018-09-21 00:59 01:13:47 1990191 500 188 15 297 +125.39 +/- 18.53
54573 ncm-et-9 2018-09-21 00:58 01:15:28 1989874 500 205 11 284 +142.26 +/- 19.05
54572 ncm-et-4 2018-09-21 00:58 01:14:34 1990032 500 200 14 286 +135.76 +/- 19.05
54571 ncm-et-10 2018-09-21 00:58 01:15:41 1979503 500 201 15 284 +135.76 +/- 19.18
54570 ncm-et-3 2018-09-20 23:44 01:14:11 1989086 500 200 23 277 +128.55 +/- 19.75
54569 ncm-et-15 2018-09-20 23:44 01:15:33 1980911 500 206 10 284 +143.89 +/- 19.01
54568 ncm-et-10 2018-09-20 23:44 01:12:52 1972233 500 186 13 301 +125.39 +/- 18.27
54567 ncm-et-13 2018-09-20 23:44 01:14:45 1988296 500 191 21 288 +123.02 +/- 19.15
54566 ncm-et-9 2018-09-20 23:44 01:13:35 1988138 500 198 16 286 +132.54 +/- 19.11
54565 ncm-et-4 2018-09-20 23:44 01:13:27 1989401 500 191 11 298 +130.94 +/- 18.35
2000 ncm-et-7 2018-02-20 17:10 00:33:42 1949125 218 80 4 134 +126.42 +/- 27.04
1999 ncm-et-4 2018-02-20 17:08 00:35:15 1987524 232 89 13 130 +118.17 +/- 28.96
1998 ncm-et-5 2018-02-20 17:06 00:37:31 2024918 255 98 10 147 +125.03 +/- 26.78
1997 ncm-et-8 2018-02-20 17:06 00:37:38 1951171 242 98 6 138 +139.06 +/- 27.41
1996 ncm-et-3 2018-02-20 17:05 00:38:18 2026555 263 106 16 141 +123.89 +/- 28.09
1995 ncm-et-6 2018-02-20 17:04 00:38:37 2026063 255 98 10 147 +125.03 +/- 26.78
1994 ncm-et-9 2018-02-20 17:04 00:38:57 2024754 267 110 12 145 +133.76 +/- 27.42
1993 ncm-et-10 2018-02-20 17:04 00:39:22 2019045 268 94 7 167 +117.02 +/- 24.28
1992 ncm-et-7 2018-02-20 15:54 01:14:20 2027210 500 196 18 286 +129.35 +/- 19.17
1991 ncm-et-5 2018-02-20 15:53 01:11:51 2023937 500 196 14 290 +132.54 +/- 18.85
1990 ncm-et-8 2018-02-20 15:52 01:12:18 2023773 500 205 15 280 +138.99 +/- 19.38
1989 ncm-et-4 2018-02-20 15:51 01:15:14 1940999 500 193 14 293 +130.15 +/- 18.7
1988 ncm-et-10 2018-02-20 15:51 01:12:03 2019046 500 204 18 278 +135.76 +/- 19.57
1987 ncm-et-9 2018-02-20 15:51 01:12:34 2025244 500 212 13 275 +146.36 +/- 19.57
1986 ncm-et-3 2018-02-20 15:50 01:13:37 2028195 500 196 16 288 +130.94 +/- 19.01
1985 ncm-et-6 2018-02-20 15:50 01:13:09 2027214 500 189 10 301 +130.15 +/- 18.17
1984 ncm-et-10 2018-02-20 14:36 01:13:26 2020510 500 204 14 282 +138.99 +/- 19.25
1983 ncm-et-9 2018-02-20 14:36 01:13:26 2020347 500 194 14 292 +130.94 +/- 18.75
1982 ncm-et-7 2018-02-20 14:36 01:16:58 1941711 500 217 19 264 +145.54 +/- 20.31
1981 ncm-et-4 2018-02-20 14:36 01:14:27 1988655 500 198 13 289 +134.95 +/- 18.87
1980 ncm-et-6 2018-02-20 14:36 01:13:07 2028525 500 197 13 290 +134.15 +/- 18.82
1979 ncm-et-5 2018-02-20 14:36 01:15:50 1958442 500 203 15 282 +137.37 +/- 19.28
1978 ncm-et-8 2018-02-20 14:36 01:15:15 1958609 500 193 17 290 +127.76 +/- 18.94
1977 ncm-et-3 2018-02-20 14:36 01:13:18 2022959 500 202 17 281 +134.95 +/- 19.39

Commit

Commit ID 020dd69a3512d01c7f189b1aea64fa75c7e1b7cd
Author Alain SAVARD
Date 2017-12-11 14:27:44 UTC
Simplify other checks #1334 Simplify the other check penalty computation. Compared to current master, a) it uses a 143 kingDanger penalty instead of S(10, 10) for the "otherCheck" (credits to ElbertoOne for finding a suitable kingDanger range to replace the score and to Guardian for showing this could also be a neutral change at LTC). This makes our king safety model more consistent and simpler. b) it might also score more than one "otherCheck" penalty for a given piece type instead of just one c) it might score many pinned penalties instead of just one. d) It also remove 3 conditionals and uses simpler expressions. So it was tested as a SPRT[-3, 1] Passed STC http://tests.stockfishchess.org/tests/view/5a2b560b0ebc590ccbb8ba6b LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 11705 W: 2217 L: 2080 D: 7408 And LTC http://tests.stockfishchess.org/tests/view/5a2bfd0d0ebc590ccbb8bab0 LLR: 2.94 (-2.94,2.94) [-3.00,1.00] Total: 26812 W: 3575 L: 3463 D: 19774 Trying to improve on b) another attempt was made to score also the "otherchecks" for piece types which had some safe checks, but this failed STC http://tests.stockfishchess.org/tests/view/5a2c79e60ebc590ccbb8badd bench: 5149133
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