Dev Builds » 20180728-0534

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 08:55:45 1990508 3457 1783 85 1589 +186.79 +/- 8.35
ncm-et-4 08:55:53 1989599 3452 1744 101 1607 +179.88 +/- 8.32
ncm-et-9 08:55:57 1988849 3466 1813 85 1568 +190.18 +/- 8.42
ncm-et-10 08:55:27 1968111 3409 1756 87 1566 +186.06 +/- 8.42
ncm-et-13 08:54:49 1957003 3392 1722 111 1559 +179.43 +/- 8.47
ncm-et-15 08:56:53 1620759 2824 1422 71 1331 +180.98 +/- 9.1
20000 10240 540 9220 +183.97 +/- 3.47

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
48542 ncm-et-13 2018-08-04 16:15 00:29:16 1934652 185 88 2 95 +174.93 +/- 33.38
48541 ncm-et-10 2018-08-04 16:09 00:35:01 1952102 219 114 1 104 +198.33 +/- 32.07
48540 ncm-et-4 2018-08-04 16:09 00:35:33 1991297 229 111 6 112 +172.13 +/- 31.38
48539 ncm-et-3 2018-08-04 16:09 00:35:46 1988769 231 135 6 90 +219.08 +/- 35.82
48538 ncm-et-9 2018-08-04 16:05 00:39:07 1989242 252 130 6 116 +187.19 +/- 31.02
48537 ncm-et-15 2018-08-04 15:33 01:11:31 1618683 384 185 8 191 +173.2 +/- 23.83
48536 ncm-et-13 2018-08-04 14:56 01:18:26 1963207 500 275 13 212 +202.15 +/- 23.11
48535 ncm-et-3 2018-08-04 14:50 01:17:34 1989876 500 260 11 229 +189.92 +/- 22.01
48534 ncm-et-4 2018-08-04 14:50 01:18:15 1987194 500 256 13 231 +184.42 +/- 21.95
48533 ncm-et-10 2018-08-04 14:49 01:19:01 1946158 500 245 23 232 +165.8 +/- 22.13
48532 ncm-et-9 2018-08-04 14:47 01:17:18 1987352 500 263 14 223 +189.92 +/- 22.46
48531 ncm-et-15 2018-08-04 13:52 01:40:13 1570384 500 244 14 242 +172.78 +/- 21.36
48530 ncm-et-13 2018-08-04 13:34 01:20:13 1954997 500 235 20 245 +159.78 +/- 21.34
48529 ncm-et-4 2018-08-04 13:31 01:17:25 1988298 500 238 17 245 +164.93 +/- 21.27
48528 ncm-et-10 2018-08-04 13:31 01:17:14 1981068 500 252 12 236 +181.7 +/- 21.63
48527 ncm-et-3 2018-08-04 13:31 01:18:19 1990506 500 253 13 234 +181.7 +/- 21.78
48526 ncm-et-9 2018-08-04 13:30 01:16:01 1989401 500 266 11 223 +195.51 +/- 22.37
48525 ncm-et-13 2018-08-04 12:13 01:20:18 1926645 500 243 13 244 +172.78 +/- 21.21
48524 ncm-et-10 2018-08-04 12:13 01:17:08 1981072 500 263 10 227 +193.64 +/- 22.09
48523 ncm-et-15 2018-08-04 12:13 01:37:44 1572874 500 236 14 250 +165.8 +/- 20.91
48522 ncm-et-3 2018-08-04 12:13 01:17:05 1990035 500 247 11 242 +178.11 +/- 21.26
48521 ncm-et-4 2018-08-04 12:13 01:17:34 1990822 500 246 11 243 +177.22 +/- 21.21
48520 ncm-et-9 2018-08-04 12:12 01:16:28 1988929 500 258 14 228 +185.33 +/- 22.16
47971 ncm-et-10 2018-07-31 06:42 00:29:28 1982948 190 108 6 76 +208.36 +/- 39.06
47970 ncm-et-13 2018-07-31 06:40 00:31:38 1989244 207 112 8 87 +191.97 +/- 36.45
47969 ncm-et-9 2018-07-31 06:38 00:33:26 1989560 214 116 5 93 +199.62 +/- 34.88
47968 ncm-et-4 2018-07-31 06:38 00:33:51 1989085 223 116 4 103 +191.89 +/- 32.78
47967 ncm-et-3 2018-07-31 06:36 00:35:39 1990191 226 115 5 106 +184.75 +/- 32.35
47966 ncm-et-15 2018-07-31 05:46 01:25:41 1579627 440 224 11 205 +183.55 +/- 23.27
47965 ncm-et-10 2018-07-31 05:23 01:18:18 1973615 500 259 15 226 +185.33 +/- 22.3
47964 ncm-et-9 2018-07-31 05:20 01:16:39 1988454 500 254 12 234 +183.51 +/- 21.75
47963 ncm-et-13 2018-07-31 05:20 01:18:40 1960899 500 264 20 216 +185.33 +/- 23.02
47962 ncm-et-4 2018-07-31 05:19 01:17:00 1990506 500 269 14 217 +195.51 +/- 22.82
47961 ncm-et-3 2018-07-31 05:17 01:17:14 1991457 500 257 13 230 +185.33 +/- 22.01
47960 ncm-et-15 2018-07-31 04:22 01:22:56 1818264 500 264 12 224 +192.71 +/- 22.34
47959 ncm-et-10 2018-07-31 04:02 01:19:42 1982948 500 261 10 229 +191.78 +/- 21.98
47958 ncm-et-9 2018-07-31 04:02 01:17:45 1988769 500 267 11 222 +196.45 +/- 22.43
47957 ncm-et-4 2018-07-31 04:00 01:18:08 1989401 500 258 17 225 +182.61 +/- 22.41
47956 ncm-et-13 2018-07-31 04:00 01:18:54 1961336 500 249 19 232 +172.78 +/- 22.05
47955 ncm-et-3 2018-07-31 03:59 01:17:31 1993198 500 248 18 234 +172.78 +/- 21.91
47954 ncm-et-15 2018-07-31 02:42 01:38:48 1564727 500 269 12 219 +197.4 +/- 22.64
47953 ncm-et-13 2018-07-31 02:41 01:17:24 1965045 500 256 16 228 +181.7 +/- 22.21
47952 ncm-et-9 2018-07-31 02:41 01:19:13 1989086 500 259 12 229 +188.08 +/- 22.04
47951 ncm-et-10 2018-07-31 02:41 01:19:35 1944979 500 254 10 236 +185.33 +/- 21.57
47950 ncm-et-4 2018-07-31 02:41 01:18:07 1990190 500 250 19 231 +173.67 +/- 22.11
47949 ncm-et-3 2018-07-31 02:41 01:16:37 1990033 500 268 8 224 +200.24 +/- 22.2

Commit

Commit ID c08e05b494d54c7fc28621204382d77d3595d436
Author Miguel Lahoz
Date 2018-07-28 05:34:37 UTC
Increase the mg->eg gradient for the PawnlessFlank malus Just a change of value to S(19, 84). Also somewhat of a follow up to the recent tweak in definition of KingFlank. I tried a lot of other values before this, increasing and decreasing but with little success, and before giving up I wanted to try tweaking the middlegame and endgame values in the opposite directions. I guess this is somewhat lucky. STC: LLR: 2.94 (-2.94,2.94) [0.00,4.00] Total: 67685 W: 15399 L: 14963 D: 37323 http://tests.stockfishchess.org/tests/view/5b5b5ae80ebc5902bdb8e4f8 LTC: (Also thanks to Stephane Nicolet) LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 54635 W: 9505 L: 9172 D: 35958 http://tests.stockfishchess.org/tests/view/5b5b78f20ebc5902bdb8ece5 Closes https://github.com/official-stockfish/Stockfish/pull/1714 Bench: 4883742
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