Dev Builds » 20180727-0830

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 08:56:03 1989500 3466 1765 96 1605 +182.4 +/- 8.32
ncm-et-4 08:55:31 1989106 3460 1744 81 1635 +181.99 +/- 8.2
ncm-et-9 08:56:05 1988770 3463 1785 109 1569 +183.5 +/- 8.45
ncm-et-10 08:55:40 1974865 3427 1717 88 1622 +179.61 +/- 8.24
ncm-et-13 08:55:28 1978304 3473 1802 102 1569 +186.01 +/- 8.44
ncm-et-15 08:57:21 1567324 2711 1353 62 1296 +180.0 +/- 9.19
20000 10166 538 9296 +182.34 +/- 3.45

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
48657 ncm-et-10 2018-08-05 14:46 00:34:17 1982792 218 100 5 113 +162.26 +/- 30.88
48656 ncm-et-4 2018-08-05 14:45 00:34:14 1989401 222 108 6 108 +172.55 +/- 32.01
48655 ncm-et-3 2018-08-05 14:44 00:35:55 1990190 235 120 4 111 +187.9 +/- 31.45
48654 ncm-et-13 2018-08-05 14:43 00:36:30 1985934 238 121 6 111 +183.15 +/- 31.7
48653 ncm-et-9 2018-08-05 14:43 00:37:06 1989717 238 131 5 102 +204.75 +/- 33.28
48652 ncm-et-15 2018-08-05 14:12 01:08:01 1567369 349 167 10 172 +168.34 +/- 25.3
48651 ncm-et-10 2018-08-05 13:27 01:17:08 1980755 500 243 12 245 +173.67 +/- 21.13
48650 ncm-et-4 2018-08-05 13:26 01:18:09 1988612 500 252 15 233 +179.0 +/- 21.89
48649 ncm-et-3 2018-08-05 13:26 01:17:01 1989087 500 276 15 209 +201.19 +/- 23.35
48648 ncm-et-9 2018-08-05 13:25 01:16:21 1990190 500 248 20 232 +171.02 +/- 22.07
48647 ncm-et-13 2018-08-05 13:25 01:17:12 1967674 500 253 12 235 +182.61 +/- 21.69
48646 ncm-et-15 2018-08-05 12:32 01:39:01 1562662 500 263 9 228 +194.57 +/- 22.0
48645 ncm-et-4 2018-08-05 12:08 01:17:06 1988769 500 250 7 243 +184.42 +/- 21.06
48644 ncm-et-9 2018-08-05 12:08 01:16:28 1987194 500 273 15 212 +198.34 +/- 23.16
48643 ncm-et-3 2018-08-05 12:07 01:17:53 1989875 500 239 19 242 +164.07 +/- 21.49
48642 ncm-et-10 2018-08-05 12:07 01:19:37 1954776 500 250 15 235 +177.22 +/- 21.78
48641 ncm-et-13 2018-08-05 12:07 01:17:21 1988302 500 249 19 232 +172.78 +/- 22.05
48640 ncm-et-13 2018-08-05 10:50 01:15:21 1988928 500 239 18 243 +164.93 +/- 21.41
48639 ncm-et-4 2018-08-05 10:50 01:17:00 1988296 500 254 13 233 +182.61 +/- 21.84
48638 ncm-et-15 2018-08-05 10:50 01:40:41 1564514 500 237 12 251 +168.4 +/- 20.8
48637 ncm-et-10 2018-08-05 10:50 01:15:54 1981382 500 242 13 245 +171.9 +/- 21.16
48636 ncm-et-3 2018-08-05 10:50 01:16:03 1987981 500 244 12 244 +174.55 +/- 21.18
48635 ncm-et-9 2018-08-05 10:50 01:16:53 1987981 500 262 23 215 +180.8 +/- 23.12
47614 ncm-et-10 2018-07-28 12:07 00:33:07 1983890 209 109 5 95 +189.74 +/- 34.36
47613 ncm-et-9 2018-07-28 12:06 00:35:03 1987981 225 115 6 104 +183.72 +/- 32.82
47612 ncm-et-3 2018-07-28 12:05 00:35:42 1989403 231 119 10 102 +178.05 +/- 33.57
47611 ncm-et-13 2018-07-28 12:05 00:36:02 1985623 235 132 7 96 +205.96 +/- 34.62
47610 ncm-et-4 2018-07-28 12:03 00:37:47 1988613 238 114 3 121 +175.61 +/- 29.65
47609 ncm-et-15 2018-07-28 11:29 01:11:01 1572557 362 174 6 182 +174.59 +/- 24.28
47608 ncm-et-10 2018-07-28 10:49 01:17:27 1980285 500 264 15 221 +189.92 +/- 22.6
47607 ncm-et-13 2018-07-28 10:47 01:16:51 1978488 500 254 13 233 +182.61 +/- 21.84
47606 ncm-et-9 2018-07-28 10:47 01:17:51 1988139 500 257 14 229 +184.42 +/- 22.1
47605 ncm-et-3 2018-07-28 10:46 01:18:12 1990348 500 265 12 223 +193.64 +/- 22.4
47604 ncm-et-4 2018-07-28 10:44 01:17:40 1991772 500 252 19 229 +175.44 +/- 22.22
47603 ncm-et-15 2018-07-28 09:49 01:39:28 1567931 500 252 12 236 +181.7 +/- 21.63
47602 ncm-et-10 2018-07-28 09:30 01:17:48 1982321 500 254 12 234 +183.51 +/- 21.75
47601 ncm-et-13 2018-07-28 09:28 01:17:31 1986725 500 272 13 215 +199.29 +/- 22.92
47600 ncm-et-3 2018-07-28 09:28 01:16:48 1990822 500 244 14 242 +172.78 +/- 21.36
47599 ncm-et-9 2018-07-28 09:28 01:17:52 1990664 500 244 9 247 +177.22 +/- 20.91
47598 ncm-et-4 2018-07-28 09:26 01:17:04 1986563 500 258 7 235 +191.78 +/- 21.51
47597 ncm-et-15 2018-07-28 08:08 01:39:09 1568912 500 260 13 227 +188.08 +/- 22.19
47596 ncm-et-13 2018-07-28 08:08 01:18:40 1944758 500 282 14 204 +207.95 +/- 23.65
47595 ncm-et-3 2018-07-28 08:08 01:18:29 1988300 500 258 10 232 +189.0 +/- 21.8
47594 ncm-et-9 2018-07-28 08:08 01:18:31 1988298 500 255 17 228 +179.9 +/- 22.23
47593 ncm-et-10 2018-07-28 08:08 01:20:22 1952723 500 255 11 234 +185.33 +/- 21.72
47592 ncm-et-4 2018-07-28 08:08 01:16:31 1990822 500 256 11 233 +186.25 +/- 21.78

Commit

Commit ID c9f80660a6c529f6909c1beed4e9d5798979711b
Author Jekaa
Date 2018-07-27 08:30:53 UTC
Small reformat in evaluate threats (non functional) When evaluating threat by safe pawn and pawn push the same expression is used. STC LLR: 2.95 (-2.94,2.94) [0.00,5.00] Total: 19444 W: 4540 L: 4309 D: 10595 http://tests.stockfishchess.org/tests/view/5b5a6e150ebc5902bdb8c5c0 Closes https://github.com/official-stockfish/Stockfish/pull/1709 No functional change. -------------------- Comments by Stéphane Nicolet: I don't measure any speed-up on my system, with two parallel benches at depth 22: Total time (ms) : 74989 Nodes searched : 144830258 Nodes/second : 1931353 master Total time (ms) : 75341 Nodes searched : 144830258 Nodes/second : 1922329 testedpatch And anyway, like Stefan Geschwentner, I don't think that a 0.3% speed-up would be enough to pass a [0..5] LTC test -- as a first approximation, we have this rule of thumb that 1% speed-up gives about 1 Elo point. However, considering the facts that the reformatting by itself is interesting, that this is your first green test and that you played by the rules by running the SPRT[0..5] test before opening the pull request, I will commit the change. I will only take the liberty to change the occurrences of safe in lines 590 and 591 to b, to make the code more similar to lines 584 and 585. So approved, and congrats :-)
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