Dev Builds » 20180605-1615

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 06:30:27 2002067 2577 1206 64 1307 +165.43 +/- 9.09
ncm-et-4 06:30:20 1990885 2589 1242 76 1271 +168.56 +/- 9.29
ncm-et-5 02:16:29 2024431 914 430 30 454 +163.05 +/- 15.57
ncm-et-6 02:16:16 2026227 908 425 30 453 +161.93 +/- 15.58
ncm-et-7 02:16:40 2023202 916 453 27 436 +175.02 +/- 15.94
ncm-et-9 06:30:31 2001275 2566 1197 64 1305 +164.74 +/- 9.1
ncm-et-10 06:30:40 1978522 2561 1271 82 1208 +174.67 +/- 9.6
ncm-et-11 02:16:36 2025163 914 407 40 467 +147.82 +/- 15.39
ncm-et-12 02:16:34 1963814 895 437 17 441 +176.89 +/- 15.66
ncm-et-13 06:30:46 2000199 2581 1221 80 1280 +164.97 +/- 9.26
ncm-et-15 06:30:26 1984519 2579 1203 58 1318 +165.78 +/- 9.03
20000 9492 568 9940 +166.75 +/- 3.31

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
50076 ncm-et-10 2018-08-17 01:29 00:21:41 1980756 146 76 7 63 +178.38 +/- 42.99
50075 ncm-et-15 2018-08-17 01:26 00:25:35 1980598 164 74 6 84 +153.29 +/- 36.29
50074 ncm-et-9 2018-08-17 01:25 00:25:21 1987351 157 72 2 83 +166.6 +/- 35.61
50073 ncm-et-13 2018-08-17 01:25 00:26:35 1988928 176 79 6 91 +153.34 +/- 34.74
50072 ncm-et-3 2018-08-17 01:24 00:26:42 1990348 171 80 0 91 +176.25 +/- 33.43
50071 ncm-et-4 2018-08-17 01:23 00:28:20 1990348 186 90 6 90 +169.11 +/- 35.24
50070 ncm-et-10 2018-08-17 00:09 01:19:34 1896666 500 259 12 229 +188.08 +/- 22.04
50069 ncm-et-9 2018-08-17 00:08 01:16:09 1989561 500 218 21 261 +144.72 +/- 20.52
50068 ncm-et-3 2018-08-17 00:08 01:15:14 1990034 500 235 14 251 +164.93 +/- 20.86
50067 ncm-et-4 2018-08-17 00:07 01:14:33 1989402 500 258 15 227 +184.42 +/- 22.24
50066 ncm-et-13 2018-08-17 00:07 01:16:27 1985461 500 225 14 261 +156.39 +/- 20.33
50065 ncm-et-15 2018-08-17 00:06 01:18:51 1915152 500 220 7 273 +158.08 +/- 19.45
50064 ncm-et-3 2018-08-16 22:51 01:15:31 1989242 500 248 17 235 +173.67 +/- 21.83
50063 ncm-et-9 2018-08-16 22:51 01:16:31 1989085 500 227 8 265 +163.21 +/- 19.91
50062 ncm-et-13 2018-08-16 22:51 01:15:25 1989087 500 237 17 246 +164.07 +/- 21.22
50061 ncm-et-4 2018-08-16 22:50 01:15:50 1988296 500 242 13 245 +171.9 +/- 21.16
50060 ncm-et-10 2018-08-16 22:50 01:17:30 1972484 500 244 16 240 +171.02 +/- 21.52
50059 ncm-et-15 2018-08-16 22:49 01:15:40 1982007 500 241 13 246 +171.02 +/- 21.1
50058 ncm-et-4 2018-08-16 21:34 01:15:18 1991297 500 249 16 235 +175.44 +/- 21.81
50057 ncm-et-15 2018-08-16 21:34 01:13:58 1987199 500 227 6 267 +164.93 +/- 19.72
50056 ncm-et-13 2018-08-16 21:34 01:15:46 1986248 500 239 12 249 +170.15 +/- 20.91
50055 ncm-et-10 2018-08-16 21:34 01:15:23 1982322 500 240 19 241 +164.93 +/- 21.54
50054 ncm-et-3 2018-08-16 21:34 01:16:37 1991141 500 240 12 248 +171.02 +/- 20.96
50053 ncm-et-9 2018-08-16 21:34 01:15:53 1990507 500 247 9 244 +179.9 +/- 21.08
39126 ncm-et-12 2018-06-05 18:30 01:00:15 1961263 395 195 4 196 +183.31 +/- 23.3
39125 ncm-et-11 2018-06-05 18:30 01:00:29 2025573 414 188 18 208 +151.61 +/- 23.14
39124 ncm-et-9 2018-06-05 18:29 01:01:03 2027210 409 198 11 200 +171.56 +/- 23.45
39123 ncm-et-4 2018-06-05 18:29 01:00:53 1992975 403 173 9 221 +150.07 +/- 21.78
39122 ncm-et-3 2018-06-05 18:29 01:01:01 2026882 406 172 12 222 +144.75 +/- 21.88
39121 ncm-et-10 2018-06-05 18:29 01:01:13 2020673 415 210 10 195 +182.57 +/- 23.83
39120 ncm-et-6 2018-06-05 18:29 01:01:19 2025899 408 196 13 199 +167.76 +/- 23.6
39119 ncm-et-13 2018-06-05 18:29 01:01:39 2025900 405 191 16 198 +160.68 +/- 23.75
39118 ncm-et-7 2018-06-05 18:29 01:01:52 2024754 416 215 10 191 +187.52 +/- 24.14
39117 ncm-et-15 2018-06-05 18:28 01:01:52 2020673 415 193 14 208 +160.35 +/- 23.02
39116 ncm-et-5 2018-06-05 18:28 01:02:20 2026721 414 191 15 208 +157.71 +/- 23.05
39115 ncm-et-5 2018-06-05 17:13 01:14:09 2022141 500 239 15 246 +167.53 +/- 21.16
39114 ncm-et-6 2018-06-05 17:13 01:14:57 2026555 500 229 17 254 +157.24 +/- 20.78
39113 ncm-et-10 2018-06-05 17:13 01:15:19 2018233 500 242 18 240 +167.53 +/- 21.57
39112 ncm-et-12 2018-06-05 17:13 01:16:19 1966366 500 242 13 245 +171.9 +/- 21.16
39111 ncm-et-15 2018-06-05 17:13 01:14:30 2021490 500 248 12 240 +178.11 +/- 21.41
39110 ncm-et-11 2018-06-05 17:13 01:16:07 2024754 500 219 22 259 +144.72 +/- 20.64
39109 ncm-et-13 2018-06-05 17:13 01:14:54 2025572 500 250 15 235 +177.22 +/- 21.78
39108 ncm-et-9 2018-06-05 17:13 01:15:34 2023936 500 235 13 252 +165.8 +/- 20.78
39107 ncm-et-3 2018-06-05 17:13 01:15:22 2024757 500 231 9 260 +165.8 +/- 20.21
39106 ncm-et-7 2018-06-05 17:13 01:14:48 2021651 500 238 17 245 +164.93 +/- 21.27
39105 ncm-et-4 2018-06-05 17:13 01:15:26 1992996 500 230 17 253 +158.08 +/- 20.84

Commit

Commit ID e4f8a4fa7f5da8287579c0c74e292974c6acfd8d
Author Stéphane Nicolet
Date 2018-06-05 16:15:54 UTC
Call cycle detection before qsearch() This has the property of raising alpha before calling qsearch(), thus maybe giving some more cuts during qsearch(). The patch is equivalent to the use of cycle detection inside qsearch() at depth 0, but is in fact implemented by re-ordering code inside search(), which explains the [0..4] bounds in the following tests. STC (interrupted after 124250 games, with LLR=0.87): http://tests.stockfishchess.org/tests/view/5b1500bd0ebc5902a8b420bf LLR: 0.87 (-2.94,2.94) [0.00,4.00] Total: 124250 W: 24973 L: 24470 D: 74807 LTC: http://tests.stockfishchess.org/tests/view/5b1590eb0ebc5902a84dcd09 LLR: 2.96 (-2.94,2.94) [0.00,4.00] Total: 74234 W: 11098 L: 10733 D: 52403 Closes https://github.com/official-stockfish/Stockfish/pull/1635 Bench: 4326784
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