Dev Builds » 20180326-0728

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 06:00:51 2001078 2381 1058 91 1232 +149.73 +/- 9.42
ncm-et-4 05:59:29 2001046 2363 1105 76 1182 +162.12 +/- 9.63
ncm-et-5 01:47:30 2023773 715 322 23 370 +154.78 +/- 17.14
ncm-et-6 01:46:08 2025981 709 338 17 354 +169.6 +/- 17.52
ncm-et-7 01:49:43 1983677 712 323 23 366 +156.11 +/- 17.25
ncm-et-8 01:49:59 1986057 723 337 26 360 +159.85 +/- 17.52
ncm-et-9 06:01:43 1999407 2379 1118 84 1177 +161.77 +/- 9.69
ncm-et-10 06:00:08 1981379 2363 1050 85 1228 +150.67 +/- 9.42
ncm-et-11 01:46:37 2017746 717 341 18 358 +168.61 +/- 17.43
ncm-et-12 01:46:36 2015151 698 308 22 368 +151.24 +/- 17.12
ncm-et-13 06:02:23 1996751 2392 1114 81 1197 +160.58 +/- 9.58
ncm-et-14 01:49:01 2019615 732 369 21 342 +179.64 +/- 18.04
ncm-et-15 06:04:53 1980552 2405 1117 71 1217 +161.89 +/- 9.46
ncm-et-16 01:46:56 1999648 711 315 23 373 +151.63 +/- 17.03
20000 9215 661 10124 +158.81 +/- 3.29

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
52206 ncm-et-10 2018-09-02 22:55 00:24:38 1903453 159 73 4 82 +161.48 +/- 36.4
52205 ncm-et-13 2018-09-02 22:55 00:24:41 1969115 164 72 5 87 +150.74 +/- 35.29
52204 ncm-et-4 2018-09-02 22:54 00:25:30 1989558 168 89 4 75 +193.62 +/- 38.8
52203 ncm-et-9 2018-09-02 22:54 00:25:57 1986563 167 74 6 87 +150.17 +/- 35.54
52202 ncm-et-3 2018-09-02 22:53 00:26:19 1988454 174 87 5 82 +177.78 +/- 36.98
52201 ncm-et-15 2018-09-02 22:52 00:27:07 1899487 168 83 3 82 +179.99 +/- 36.51
52200 ncm-et-13 2018-09-02 21:38 01:16:07 1987512 500 240 16 244 +167.53 +/- 21.3
52199 ncm-et-10 2018-09-02 21:38 01:16:21 1984207 500 221 18 261 +149.68 +/- 20.44
52198 ncm-et-9 2018-09-02 21:37 01:15:36 1987508 500 249 19 232 +172.78 +/- 22.05
52197 ncm-et-3 2018-09-02 21:36 01:15:46 1989564 500 237 18 245 +163.21 +/- 21.3
52196 ncm-et-15 2018-09-02 21:36 01:15:25 1983106 500 232 7 261 +168.4 +/- 20.08
52195 ncm-et-4 2018-09-02 21:36 01:17:14 1990032 500 223 20 257 +149.68 +/- 20.7
52194 ncm-et-10 2018-09-02 20:20 01:16:16 1978878 500 226 28 246 +145.54 +/- 21.44
52193 ncm-et-13 2018-09-02 20:20 01:16:45 1986564 500 248 17 235 +173.67 +/- 21.83
52192 ncm-et-3 2018-09-02 20:20 01:15:48 1988927 500 230 19 251 +156.39 +/- 21.0
52191 ncm-et-9 2018-09-02 20:20 01:16:24 1989085 500 244 18 238 +169.27 +/- 21.69
52190 ncm-et-15 2018-09-02 20:19 01:15:55 1984048 500 235 19 246 +160.64 +/- 21.27
52189 ncm-et-4 2018-09-02 20:19 01:15:54 1990191 500 241 16 243 +168.4 +/- 21.36
52188 ncm-et-3 2018-09-02 19:02 01:16:02 1990507 500 202 18 280 +134.15 +/- 19.47
52187 ncm-et-10 2018-09-02 19:02 01:16:44 1981695 500 204 14 282 +138.99 +/- 19.25
52186 ncm-et-15 2018-09-02 19:02 01:15:31 1982322 500 217 16 267 +148.02 +/- 20.07
52185 ncm-et-9 2018-09-02 19:02 01:16:06 1986720 500 236 20 244 +160.64 +/- 21.4
52184 ncm-et-4 2018-09-02 19:02 01:15:24 1988297 500 232 15 253 +161.49 +/- 20.78
52183 ncm-et-13 2018-09-02 19:02 01:16:24 1988299 500 243 14 243 +171.9 +/- 21.3
12469 ncm-et-12 2018-03-27 05:21 00:30:40 2015150 198 80 9 109 +130.38 +/- 31.58
12468 ncm-et-4 2018-03-27 05:21 00:30:41 2024100 195 92 9 94 +157.93 +/- 34.74
12467 ncm-et-10 2018-03-27 05:21 00:30:36 2020673 204 98 6 100 +168.83 +/- 33.29
12466 ncm-et-7 2018-03-27 05:20 00:31:25 2023286 212 96 5 111 +159.46 +/- 31.12
12465 ncm-et-16 2018-03-27 05:20 00:31:34 2020024 211 94 5 112 +156.3 +/- 30.9
12464 ncm-et-9 2018-03-27 05:20 00:31:36 2021651 212 77 4 131 +124.73 +/- 27.31
12463 ncm-et-3 2018-03-27 05:20 00:31:30 2024100 207 91 7 109 +149.6 +/- 31.61
12462 ncm-et-11 2018-03-27 05:20 00:31:50 2015960 217 114 5 98 +191.92 +/- 33.83
12461 ncm-et-5 2018-03-27 05:20 00:31:45 2023446 215 90 7 118 +141.46 +/- 30.11
12460 ncm-et-6 2018-03-27 05:20 00:32:10 2025408 209 96 5 108 +162.1 +/- 31.63
12459 ncm-et-13 2018-03-27 05:18 00:33:53 2024263 228 102 11 115 +146.83 +/- 31.23
12458 ncm-et-8 2018-03-27 05:17 00:34:33 1993051 223 97 10 116 +143.13 +/- 30.9
12457 ncm-et-15 2018-03-27 05:16 00:35:27 2017258 237 121 11 105 +174.61 +/- 33.11
12456 ncm-et-14 2018-03-27 05:16 00:36:01 2020673 232 119 10 103 +177.14 +/- 33.39
12455 ncm-et-4 2018-03-27 04:05 01:14:46 2024099 500 228 12 260 +160.64 +/- 20.32
12454 ncm-et-6 2018-03-27 04:05 01:13:58 2026555 500 242 12 246 +172.78 +/- 21.07
12453 ncm-et-10 2018-03-27 04:04 01:15:33 2019370 500 228 15 257 +158.08 +/- 20.57
12452 ncm-et-12 2018-03-27 04:04 01:15:56 2015152 500 228 13 259 +159.78 +/- 20.4
12451 ncm-et-11 2018-03-27 04:04 01:14:47 2019533 500 227 13 260 +158.93 +/- 20.35
12450 ncm-et-16 2018-03-27 04:04 01:15:22 1979272 500 221 18 261 +149.68 +/- 20.44
12449 ncm-et-3 2018-03-27 04:04 01:15:26 2024917 500 211 24 265 +136.56 +/- 20.38
12448 ncm-et-9 2018-03-27 04:03 01:16:04 2024917 500 238 17 245 +164.93 +/- 21.27
12447 ncm-et-5 2018-03-27 04:03 01:15:45 2024101 500 232 16 252 +160.64 +/- 20.86
12446 ncm-et-13 2018-03-27 04:02 01:14:33 2024755 500 209 18 273 +139.81 +/- 19.82
12445 ncm-et-14 2018-03-27 04:02 01:13:00 2018557 500 250 11 239 +180.8 +/- 21.43
12444 ncm-et-7 2018-03-27 04:01 01:18:18 1944069 500 227 18 255 +154.7 +/- 20.76
12443 ncm-et-8 2018-03-27 04:01 01:15:26 1979064 500 240 16 244 +167.53 +/- 21.3
12442 ncm-et-15 2018-03-27 04:00 01:15:28 2017096 500 229 15 256 +158.93 +/- 20.62

Commit

Commit ID f0f6da2d30fc005fd0fa126ee1eefd11fe10a604
Author Jerry Donald Watson
Date 2018-03-26 07:28:37 UTC
Make kingRing always 8 squares Make kingRing always eight squares, extending the bitboard to the F file if the king is on the H file, and to the C file if the king is on the A file. This may deal with cases where Stockfish (like many other engines) would shift the king around on the back rank like g1h1, not because there is some imminent threat, but because it makes king safety look a little better just because the king ring had a smaller area. STC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 34000 W: 7167 L: 6877 D: 19956 http://tests.stockfishchess.org/tests/view/5ab8216d0ebc5902932cbe64 LTC: LLR: 2.96 (-2.94,2.94) [0.00,5.00] Total: 22574 W: 3576 L: 3370 D: 15628 http://tests.stockfishchess.org/tests/view/5ab84e6a0ebc5902932cbe72 How to continue from there? This patch probably makes it easier to tune the king safety evaluation, because the new regularity of the king ring size will make the king safety function more continuous. Closes https://github.com/official-stockfish/Stockfish/pull/1512 Bench: 5934103
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