Dev Builds » 20150129-2135

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 05:58:25 1987808 2411 188 576 1647 -56.4 +/- 7.68
ncm-et-4 05:58:16 1981086 2381 160 607 1614 -66.01 +/- 7.75
ncm-et-5 01:46:15 2018697 716 67 174 475 -52.31 +/- 14.6
ncm-et-6 01:46:10 2026064 713 51 183 479 -65.07 +/- 14.33
ncm-et-7 01:46:13 2010365 725 59 179 487 -58.04 +/- 14.27
ncm-et-8 01:46:19 2017734 705 77 178 450 -50.12 +/- 15.3
ncm-et-9 05:57:22 1991603 2377 154 637 1586 -71.59 +/- 7.87
ncm-et-10 05:58:03 1985158 2381 189 621 1571 -63.74 +/- 8.0
ncm-et-11 01:45:58 2017990 715 66 181 468 -56.37 +/- 14.79
ncm-et-12 01:46:05 2020348 707 58 198 451 -69.72 +/- 15.16
ncm-et-13 05:58:38 1989691 2385 174 633 1578 -67.71 +/- 7.95
ncm-et-14 01:45:47 2019209 711 54 187 470 -65.77 +/- 14.6
ncm-et-15 05:58:09 1988857 2358 177 603 1578 -63.46 +/- 7.92
ncm-et-16 01:46:14 2020349 715 50 193 472 -70.44 +/- 14.54
20000 1524 5150 13326 -63.69 +/- 2.73

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
80576 ncm-et-10 2019-05-07 11:17 00:23:50 1974299 159 9 38 112 -64.09 +/- 28.68
80575 ncm-et-4 2019-05-07 11:17 00:24:25 1961229 171 9 43 119 -70.01 +/- 27.95
80574 ncm-et-9 2019-05-07 11:16 00:24:47 1970808 166 11 44 111 -70.0 +/- 29.81
80573 ncm-et-15 2019-05-07 11:16 00:24:47 1974671 155 13 38 104 -56.53 +/- 31.0
80572 ncm-et-13 2019-05-07 11:15 00:26:06 1976382 169 17 50 102 -68.72 +/- 32.71
80571 ncm-et-3 2019-05-07 11:15 00:26:42 1974788 180 14 42 124 -54.49 +/- 27.93
80570 ncm-et-10 2019-05-07 10:00 01:15:56 1971628 500 46 112 342 -46.13 +/- 16.95
80569 ncm-et-9 2019-05-07 10:00 01:15:20 1981724 500 31 135 334 -73.34 +/- 17.12
80568 ncm-et-4 2019-05-07 10:00 01:16:22 1960768 500 28 127 345 -69.71 +/- 16.51
80567 ncm-et-3 2019-05-07 09:59 01:14:31 1975277 500 37 124 339 -61.08 +/- 16.98
80566 ncm-et-15 2019-05-07 09:59 01:16:33 1967385 500 34 136 330 -71.89 +/- 17.37
80565 ncm-et-13 2019-05-07 09:58 01:16:22 1972675 500 35 151 314 -82.1 +/- 18.17
80564 ncm-et-10 2019-05-07 08:44 01:15:35 1962923 500 40 126 334 -60.36 +/- 17.27
80563 ncm-et-4 2019-05-07 08:44 01:14:51 1964610 500 37 124 339 -61.08 +/- 16.98
80562 ncm-et-15 2019-05-07 08:43 01:14:27 1986302 500 34 132 334 -68.99 +/- 17.18
80561 ncm-et-3 2019-05-07 08:43 01:15:32 1965381 500 48 123 329 -52.51 +/- 17.63
80560 ncm-et-9 2019-05-07 08:42 01:16:59 1975694 500 38 152 310 -80.63 +/- 18.42
80559 ncm-et-13 2019-05-07 08:41 01:15:45 1971417 500 38 117 345 -55.36 +/- 16.69
80558 ncm-et-9 2019-05-07 07:26 01:14:49 1971563 500 31 127 342 -67.55 +/- 16.72
80557 ncm-et-3 2019-05-07 07:26 01:15:28 1961076 500 43 115 342 -50.38 +/- 16.91
80556 ncm-et-13 2019-05-07 07:26 01:14:05 1968006 500 39 119 342 -56.07 +/- 16.86
80555 ncm-et-15 2019-05-07 07:26 01:16:13 1972216 500 44 118 338 -51.8 +/- 17.13
80554 ncm-et-4 2019-05-07 07:26 01:16:41 1976751 500 33 124 343 -63.95 +/- 16.71
80553 ncm-et-10 2019-05-07 07:26 01:16:48 1964004 500 34 147 319 -79.9 +/- 17.91
17732 ncm-et-14 2018-04-11 03:36 00:30:44 2020022 211 14 52 145 -63.26 +/- 25.71
17731 ncm-et-8 2018-04-11 03:36 00:31:22 2022630 205 25 50 130 -42.58 +/- 28.67
17730 ncm-et-12 2018-04-11 03:36 00:31:15 2019697 207 16 55 136 -66.25 +/- 27.27
17729 ncm-et-15 2018-04-11 03:36 00:31:21 2014990 203 12 53 138 -71.15 +/- 26.39
17728 ncm-et-13 2018-04-11 03:35 00:32:01 2024754 216 11 51 154 -65.09 +/- 24.16
17727 ncm-et-9 2018-04-11 03:35 00:31:46 2024917 211 12 53 146 -68.38 +/- 25.38
17726 ncm-et-4 2018-04-11 03:35 00:31:58 2025899 210 22 51 137 -48.29 +/- 27.52
17725 ncm-et-5 2018-04-11 03:35 00:32:21 2024099 216 24 60 132 -58.45 +/- 28.71
17724 ncm-et-6 2018-04-11 03:35 00:32:31 2024917 213 17 48 148 -50.93 +/- 25.45
17723 ncm-et-11 2018-04-11 03:35 00:32:12 2017908 215 26 53 136 -43.86 +/- 28.05
17722 ncm-et-16 2018-04-11 03:34 00:32:41 2019047 215 16 56 143 -65.4 +/- 26.42
17721 ncm-et-7 2018-04-11 03:34 00:32:48 2022801 225 10 53 162 -67.23 +/- 23.29
17720 ncm-et-10 2018-04-11 03:34 00:33:04 2019208 222 19 67 136 -76.33 +/- 28.05
17719 ncm-et-3 2018-04-11 03:33 00:33:52 2026554 231 19 57 155 -57.68 +/- 25.35
17718 ncm-et-9 2018-04-11 02:20 01:13:41 2024917 500 31 126 343 -66.82 +/- 16.67
17717 ncm-et-10 2018-04-11 02:20 01:12:50 2018888 500 41 131 328 -63.23 +/- 17.59
17716 ncm-et-14 2018-04-11 02:20 01:15:03 2018396 500 40 135 325 -66.82 +/- 17.72
17715 ncm-et-6 2018-04-11 02:20 01:13:39 2027211 500 34 135 331 -71.16 +/- 17.32
17714 ncm-et-4 2018-04-11 02:20 01:13:59 1997262 500 31 138 331 -75.52 +/- 17.27
17713 ncm-et-3 2018-04-11 02:20 01:12:20 2023773 500 27 115 358 -61.79 +/- 15.82
17712 ncm-et-12 2018-04-11 02:20 01:14:50 2020999 500 42 143 315 -71.16 +/- 18.23
17711 ncm-et-15 2018-04-11 02:20 01:14:48 2017582 500 40 126 334 -60.36 +/- 17.27
17710 ncm-et-5 2018-04-11 02:20 01:13:54 2013295 500 43 114 343 -49.67 +/- 16.86
17709 ncm-et-11 2018-04-11 02:20 01:13:46 2018072 500 40 128 332 -61.79 +/- 17.37
17708 ncm-et-8 2018-04-11 02:20 01:14:57 2012839 500 52 128 320 -53.22 +/- 18.11
17707 ncm-et-7 2018-04-11 02:20 01:13:25 1997930 500 49 126 325 -53.93 +/- 17.83
17706 ncm-et-16 2018-04-11 02:20 01:13:33 2021651 500 34 137 329 -72.61 +/- 17.42
17705 ncm-et-13 2018-04-11 02:20 01:14:19 2024917 500 34 145 321 -78.44 +/- 17.82

Commit

Commit ID ce0a95c2c013f4aa9d41a80b8f12f005fe162fcb
Author Marco Costalba
Date 2015-01-29 21:35:24 UTC
Simplify skill level and reduce ELO This patch has two positive effects: - Retire a hackish formula and leave just a natural, simple and plain one. - Reduce strenght at very low level, but don't impact medium/high levels. Actually even at level 0, SF is still too strong for many beginners (this was reported many times for instance on Droidfish user comments on Google Play). Test on fishtest shows that ELO drop is around 170 ELO at level 0 (good!), 130 ELO at level 1 and smoothly reduces (as expected) until level 10 where the drop is just of 8 ELO. No functional change.
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