Dev Builds » 20180312-2157

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 06:11:16 2001457 2459 1100 93 1266 +151.14 +/- 9.3
ncm-et-4 06:11:45 1994102 2415 1089 71 1255 +156.19 +/- 9.27
ncm-et-5 01:56:28 2023610 780 352 15 413 +160.66 +/- 15.99
ncm-et-6 01:56:40 2024835 777 357 18 402 +162.48 +/- 16.33
ncm-et-7 01:56:30 1980494 759 337 32 390 +147.95 +/- 16.82
ncm-et-8 01:56:38 1954999 734 318 18 398 +150.81 +/- 16.29
ncm-et-9 06:11:34 2000867 2455 1130 95 1230 +156.21 +/- 9.48
ncm-et-10 06:11:45 1977377 2406 1114 74 1218 +160.75 +/- 9.46
ncm-et-11 01:56:26 1997714 765 363 35 367 +159.26 +/- 17.52
ncm-et-12 01:56:39 2019943 778 348 36 394 +147.62 +/- 16.8
ncm-et-13 06:11:37 1972140 2426 1126 80 1220 +160.28 +/- 9.48
ncm-et-14 01:56:17 2020021 759 332 36 391 +143.07 +/- 16.83
ncm-et-15 06:11:30 1995272 2487 1124 81 1282 +155.28 +/- 9.21
20000 9090 684 10226 +155.67 +/- 3.27

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
52674 ncm-et-10 2018-09-06 13:52 00:22:39 1958889 139 59 3 77 +148.38 +/- 36.93
52673 ncm-et-13 2018-09-06 13:51 00:22:39 1986563 146 81 4 61 +203.78 +/- 43.46
52672 ncm-et-4 2018-09-06 13:50 00:24:12 1991456 153 76 5 72 +174.57 +/- 39.6
52671 ncm-et-3 2018-09-06 13:46 00:27:36 1987509 179 87 8 84 +164.65 +/- 36.85
52670 ncm-et-9 2018-09-06 13:46 00:28:06 1991930 183 87 6 90 +165.2 +/- 35.17
52669 ncm-et-15 2018-09-06 13:44 00:29:48 1981851 200 94 10 96 +155.54 +/- 34.44
52668 ncm-et-13 2018-09-06 12:34 01:16:02 1961253 500 234 16 250 +162.35 +/- 20.97
52667 ncm-et-10 2018-09-06 12:33 01:17:09 1979816 500 221 15 264 +152.18 +/- 20.2
52666 ncm-et-4 2018-09-06 12:33 01:15:27 1989401 500 235 18 247 +161.49 +/- 21.19
52665 ncm-et-3 2018-09-06 12:29 01:15:47 1990823 500 207 17 276 +138.99 +/- 19.64
52664 ncm-et-9 2018-09-06 12:28 01:16:36 1988613 500 227 21 252 +152.18 +/- 20.99
52663 ncm-et-15 2018-09-06 12:27 01:15:40 1982792 500 216 19 265 +144.72 +/- 20.26
52662 ncm-et-13 2018-09-06 11:15 01:18:35 1905733 500 236 14 250 +165.8 +/- 20.91
52661 ncm-et-10 2018-09-06 11:14 01:17:48 1941295 500 243 14 243 +171.9 +/- 21.3
52660 ncm-et-3 2018-09-06 11:14 01:14:29 1990351 500 241 18 241 +166.66 +/- 21.52
52659 ncm-et-4 2018-09-06 11:13 01:18:47 1990351 500 223 11 266 +157.24 +/- 19.97
52658 ncm-et-15 2018-09-06 11:12 01:14:01 1986248 500 214 12 274 +148.85 +/- 19.59
52657 ncm-et-9 2018-09-06 11:12 01:15:03 1987035 500 234 20 246 +158.93 +/- 21.29
52656 ncm-et-15 2018-09-06 09:56 01:15:28 1982321 500 217 21 262 +143.89 +/- 20.46
52655 ncm-et-9 2018-09-06 09:56 01:15:29 1988611 500 209 23 268 +135.76 +/- 20.2
52654 ncm-et-13 2018-09-06 09:56 01:17:54 1931089 500 220 20 260 +147.19 +/- 20.54
52653 ncm-et-10 2018-09-06 09:56 01:17:39 1942265 500 244 17 239 +170.15 +/- 21.6
52652 ncm-et-3 2018-09-06 09:56 01:16:57 1989244 500 222 23 255 +146.36 +/- 20.87
52651 ncm-et-4 2018-09-06 09:56 01:16:43 1989875 500 233 11 256 +165.8 +/- 20.49
8087 ncm-et-8 2018-03-13 20:23 00:37:52 1945115 234 98 4 132 +147.9 +/- 27.9
8086 ncm-et-14 2018-03-13 20:21 00:39:39 2019533 259 113 7 139 +151.04 +/- 27.73
8085 ncm-et-7 2018-03-13 20:21 00:39:54 1989361 259 123 10 126 +162.48 +/- 29.82
8084 ncm-et-9 2018-03-13 20:20 00:40:28 2025735 272 134 4 134 +180.78 +/- 28.37
8083 ncm-et-11 2018-03-13 20:20 00:40:24 1976059 265 129 9 127 +169.64 +/- 29.68
8082 ncm-et-5 2018-03-13 20:20 00:40:32 2024754 280 130 8 142 +162.23 +/- 27.74
8081 ncm-et-10 2018-03-13 20:20 00:40:43 2020673 267 124 8 135 +161.69 +/- 28.5
8080 ncm-et-4 2018-03-13 20:20 00:40:46 1980900 262 104 10 148 +130.46 +/- 26.8
8079 ncm-et-3 2018-03-13 20:20 00:41:03 2025572 280 133 8 139 +166.85 +/- 28.13
8078 ncm-et-12 2018-03-13 20:19 00:41:32 2021977 278 122 11 145 +146.89 +/- 27.53
8077 ncm-et-13 2018-03-13 20:19 00:41:38 2022467 280 122 16 142 +138.42 +/- 28.17
8076 ncm-et-15 2018-03-13 20:19 00:41:57 2020999 287 138 4 145 +175.84 +/- 27.13
8075 ncm-et-6 2018-03-13 20:18 00:42:18 2025899 277 134 4 139 +176.91 +/- 27.76
8074 ncm-et-9 2018-03-13 19:03 01:15:52 2023283 500 239 21 240 +162.35 +/- 21.64
8073 ncm-et-3 2018-03-13 19:03 01:15:24 2025246 500 210 19 271 +139.81 +/- 19.95
8072 ncm-et-10 2018-03-13 19:03 01:15:47 2021325 500 223 17 260 +152.18 +/- 20.47
8071 ncm-et-5 2018-03-13 19:03 01:15:56 2022466 500 222 7 271 +159.78 +/- 19.56
8070 ncm-et-15 2018-03-13 19:03 01:14:36 2017421 500 245 15 240 +172.78 +/- 21.5
8069 ncm-et-11 2018-03-13 19:03 01:16:02 2019370 500 234 26 240 +153.86 +/- 21.73
8068 ncm-et-12 2018-03-13 19:03 01:15:07 2017910 500 226 25 249 +148.02 +/- 21.23
8067 ncm-et-13 2018-03-13 19:03 01:14:49 2025736 500 233 10 257 +166.66 +/- 20.41
8066 ncm-et-6 2018-03-13 19:03 01:14:22 2023772 500 223 14 263 +154.7 +/- 20.22
8065 ncm-et-8 2018-03-13 19:03 01:18:46 1964883 500 220 14 266 +152.18 +/- 20.07
8064 ncm-et-4 2018-03-13 19:03 01:15:50 2022630 500 218 16 266 +148.85 +/- 20.13
8063 ncm-et-14 2018-03-13 19:03 01:16:38 2020510 500 219 29 252 +138.99 +/- 21.14
8062 ncm-et-7 2018-03-13 19:03 01:16:36 1971627 500 214 22 264 +140.62 +/- 20.38

Commit

Commit ID 840605c14e30c58806690ca9b87a44108fa37913
Author Jerry Donald Watson
Date 2018-03-12 21:57:21 UTC
Adjust initiative in pure pawn endgames King and pawn endgames are typically decisive, and a small advantage is often sufficient to win. Therefore we now take this into account when computing the initiative adjustment. This idea came from a series of patches by Gian-Carlo Pascutto. STC: LLR: 2.95 (-2.94,2.94) [0.00,5.00] Total: 48770 W: 10203 L: 9845 D: 28722 http://tests.stockfishchess.org/tests/view/5aa58cce0ebc59029780ff8d LTC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 22252 W: 3572 L: 3366 D: 15314 http://tests.stockfishchess.org/tests/view/5aa5b27c0ebc59029780ffad Ideas for future developement: - There have been a number of changes to the initiative calculation lately. Perhaps the coefficients could be tuned again. - It may be possible to add special knowledge for other endgames in the initiative calculation. Closes https://github.com/official-stockfish/Stockfish/pull/1481 Bench: 5750110
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