Dev Builds » 20180502-1138

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 06:04:41 2001422 2415 1100 70 1245 +158.3 +/- 9.32
ncm-et-4 06:02:44 1989616 2372 1131 65 1176 +168.15 +/- 9.64
ncm-et-5 01:48:37 2023772 723 340 24 359 +162.81 +/- 17.52
ncm-et-6 01:48:49 2024918 732 343 16 373 +166.98 +/- 16.98
ncm-et-7 01:45:22 2024594 695 316 33 346 +150.18 +/- 17.98
ncm-et-8 01:46:52 2008792 697 339 24 334 +169.25 +/- 18.26
ncm-et-9 06:04:24 2001384 2404 1124 64 1216 +164.47 +/- 9.44
ncm-et-10 06:02:33 1989013 2396 1122 58 1216 +165.83 +/- 9.42
ncm-et-11 01:46:54 2018558 710 327 16 367 +163.22 +/- 17.09
ncm-et-12 01:48:01 2003805 698 333 19 346 +168.34 +/- 17.78
ncm-et-13 06:04:06 1972246 2368 1087 71 1210 +159.38 +/- 9.47
ncm-et-14 01:48:40 2020510 722 331 29 362 +154.82 +/- 17.5
ncm-et-15 06:03:10 1989389 2370 1108 59 1203 +165.2 +/- 9.48
ncm-et-16 01:44:27 2016623 698 341 25 332 +169.59 +/- 18.35
20000 9342 573 10085 +163.4 +/- 3.28

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
50964 ncm-et-13 2018-08-23 22:16 00:22:18 1937399 144 72 2 70 +184.47 +/- 39.44
50963 ncm-et-15 2018-08-23 22:14 00:24:02 1951150 150 63 1 86 +152.74 +/- 34.08
50962 ncm-et-10 2018-08-23 22:12 00:25:54 1982793 172 91 4 77 +193.55 +/- 38.26
50961 ncm-et-4 2018-08-23 22:11 00:27:04 1989400 172 82 6 84 +164.87 +/- 36.5
50960 ncm-et-9 2018-08-23 22:10 00:27:31 1988612 182 85 8 89 +156.84 +/- 35.62
50959 ncm-et-3 2018-08-23 22:10 00:28:05 1988770 180 73 5 102 +138.09 +/- 32.05
50958 ncm-et-13 2018-08-23 20:57 01:17:29 1962688 500 233 15 252 +162.35 +/- 20.84
50957 ncm-et-15 2018-08-23 20:57 01:16:20 1981226 500 242 11 247 +173.67 +/- 20.98
50956 ncm-et-10 2018-08-23 20:54 01:16:58 1950073 500 225 13 262 +157.24 +/- 20.24
50955 ncm-et-4 2018-08-23 20:54 01:15:49 1990665 500 237 11 252 +169.27 +/- 20.71
50954 ncm-et-9 2018-08-23 20:54 01:15:37 1988296 500 228 12 260 +160.64 +/- 20.32
50953 ncm-et-3 2018-08-23 20:54 01:15:07 1990192 500 232 18 250 +158.93 +/- 21.03
50952 ncm-et-13 2018-08-23 19:41 01:15:23 1982948 500 223 15 262 +153.86 +/- 20.3
50951 ncm-et-15 2018-08-23 19:39 01:16:37 1983264 500 228 14 258 +158.93 +/- 20.49
50950 ncm-et-4 2018-08-23 19:38 01:14:39 1989874 500 222 12 266 +155.54 +/- 20.0
50949 ncm-et-10 2018-08-23 19:38 01:15:30 1980755 500 232 11 257 +164.93 +/- 20.44
50948 ncm-et-9 2018-08-23 19:37 01:15:36 1988296 500 232 17 251 +159.78 +/- 20.95
50947 ncm-et-3 2018-08-23 19:37 01:16:07 1990032 500 235 15 250 +164.07 +/- 20.94
50946 ncm-et-13 2018-08-23 18:20 01:19:09 1902735 500 242 20 238 +165.8 +/- 21.73
50945 ncm-et-15 2018-08-23 18:20 01:17:27 1983576 500 240 18 242 +165.8 +/- 21.46
50944 ncm-et-4 2018-08-23 18:20 01:17:00 1988139 500 253 24 223 +171.9 +/- 22.66
50943 ncm-et-9 2018-08-23 18:20 01:15:47 1991139 500 239 14 247 +168.4 +/- 21.08
50942 ncm-et-10 2018-08-23 18:20 01:16:12 1981225 500 237 14 249 +166.66 +/- 20.97
50941 ncm-et-3 2018-08-23 18:20 01:15:12 1990032 500 235 8 257 +170.15 +/- 20.33
25778 ncm-et-16 2018-05-03 13:10 00:30:02 2014363 198 102 5 91 +186.2 +/- 35.1
25777 ncm-et-8 2018-05-03 13:10 00:30:00 2022956 197 99 8 90 +173.63 +/- 35.62
25776 ncm-et-7 2018-05-03 13:10 00:30:09 2021815 195 82 13 100 +128.49 +/- 33.68
25775 ncm-et-4 2018-05-03 13:10 00:30:12 2024263 200 87 5 108 +151.35 +/- 31.4
25774 ncm-et-12 2018-05-03 13:10 00:30:07 2018071 198 83 8 107 +138.5 +/- 31.89
25773 ncm-et-11 2018-05-03 13:09 00:30:58 2018234 210 114 3 93 +204.35 +/- 34.58
25772 ncm-et-10 2018-05-03 13:07 00:33:12 2018396 224 100 6 118 +155.39 +/- 30.22
25771 ncm-et-9 2018-05-03 13:06 00:33:30 2026227 222 107 3 112 +176.53 +/- 30.9
25770 ncm-et-13 2018-05-03 13:06 00:34:04 2023609 224 108 6 110 +170.74 +/- 31.66
25769 ncm-et-15 2018-05-03 13:06 00:34:01 2016934 220 112 6 102 +182.53 +/- 33.15
25768 ncm-et-14 2018-05-03 13:06 00:34:12 2019533 222 113 7 102 +180.57 +/- 33.27
25767 ncm-et-5 2018-05-03 13:06 00:34:30 2023773 223 103 8 112 +158.09 +/- 31.46
25766 ncm-et-6 2018-05-03 13:05 00:35:05 2024427 232 116 9 107 +173.32 +/- 32.58
25765 ncm-et-3 2018-05-03 13:04 00:36:01 2024754 235 102 8 125 +147.19 +/- 29.46
25764 ncm-et-16 2018-05-03 11:55 01:14:25 2018884 500 239 20 241 +163.21 +/- 21.56
25763 ncm-et-7 2018-05-03 11:54 01:15:13 2027374 500 234 20 246 +158.93 +/- 21.29
25762 ncm-et-8 2018-05-03 11:52 01:16:52 1994628 500 240 16 244 +167.53 +/- 21.3
25761 ncm-et-11 2018-05-03 11:52 01:15:56 2018883 500 213 13 274 +147.19 +/- 19.62
25760 ncm-et-10 2018-05-03 11:51 01:14:47 2020836 500 237 10 253 +170.15 +/- 20.62
25759 ncm-et-4 2018-05-03 11:51 01:18:00 1955356 500 250 7 243 +184.42 +/- 21.06
25758 ncm-et-12 2018-05-03 11:51 01:17:54 1989540 500 250 11 239 +180.8 +/- 21.43
25757 ncm-et-5 2018-05-03 11:50 01:14:07 2023772 500 237 16 247 +164.93 +/- 21.14
25756 ncm-et-14 2018-05-03 11:50 01:14:28 2021488 500 218 22 260 +143.89 +/- 20.59
25755 ncm-et-6 2018-05-03 11:50 01:13:44 2025409 500 227 7 266 +164.07 +/- 19.82
25754 ncm-et-15 2018-05-03 11:50 01:14:43 2020184 500 223 9 268 +158.93 +/- 19.79
25753 ncm-et-13 2018-05-03 11:49 01:15:43 2024099 500 209 13 278 +143.89 +/- 19.42
25752 ncm-et-9 2018-05-03 11:49 01:16:23 2025739 500 233 10 257 +166.66 +/- 20.41
25751 ncm-et-3 2018-05-03 11:49 01:14:09 2024754 500 223 16 261 +153.02 +/- 20.39

Commit

Commit ID 06e0134cbc9bcf16d01738c491ec53869a5205b6
Author Stéphane Nicolet
Date 2018-05-02 11:38:00 UTC
Correct a bug introduced by Stéphane in the previous patch. When we are using the "Bitboard + Square" overloaded operators, the compiler uses the interpediate SquareBB[s] to transform the square into a Bitboard, and then calculate the result. For instance, the following code: ``` b = pos.pieces(Us, PAWN) & s ``` generates in fact the code: ``` b = pos.pieces(Us, PAWN) & SquareBB[s]` ``` The bug introduced by Stéphane in the previous patch was the use of `b = pos.pieces(Us, PAWN) & (s + Up)` which can result in out-of-bounds errors for the SquareBB[] array if s in the last rank of the board. We coorect the bug, and also add some asserts in bitboard.h to make the code more robust for this particular bug in the future. Bug report by Joost VandeVondele. Thanks! Bench: 5512000
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