Dev Builds » 20181111-2114

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 08:50:09 1968744 3434 1892 94 1448 +201.95 +/- 8.83
ncm-et-4 08:44:27 1969397 3413 1827 74 1512 +197.22 +/- 8.58
ncm-et-9 08:20:15 1780182 2883 1645 134 1104 +202.2 +/- 10.24
ncm-et-10 08:49:04 1964189 3402 1894 74 1434 +207.45 +/- 8.85
ncm-et-13 08:51:38 1977874 3458 1962 73 1423 +212.99 +/- 8.89
ncm-et-15 08:44:55 1963494 3410 1924 76 1410 +210.86 +/- 8.94
20000 11144 525 8331 +205.5 +/- 3.68

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
58876 ncm-et-10 2018-11-12 11:47 00:53:07 1961699 345 202 9 134 +219.58 +/- 29.3
58875 ncm-et-4 2018-11-12 11:37 01:03:12 1959237 413 227 9 177 +204.0 +/- 25.22
58874 ncm-et-15 2018-11-12 11:37 01:03:15 1966771 410 224 8 178 +203.51 +/- 25.07
58873 ncm-et-3 2018-11-12 11:33 01:06:54 1975230 434 226 10 198 +189.78 +/- 23.71
58872 ncm-et-9 2018-11-12 11:33 01:07:08 1746426 383 206 15 162 +190.24 +/- 26.63
58871 ncm-et-13 2018-11-12 11:30 01:10:16 1978878 458 261 5 192 +219.34 +/- 24.05
58870 ncm-et-10 2018-11-12 10:29 01:17:16 1966843 500 284 11 205 +212.86 +/- 23.51
58869 ncm-et-4 2018-11-12 10:19 01:17:21 1973031 500 266 10 224 +196.45 +/- 22.28
58868 ncm-et-15 2018-11-12 10:17 01:18:29 1951920 500 301 13 186 +228.08 +/- 24.89
58867 ncm-et-3 2018-11-12 10:15 01:17:27 1967118 500 283 11 206 +211.87 +/- 23.44
58866 ncm-et-13 2018-11-12 10:13 01:16:26 1986930 500 284 12 204 +211.87 +/- 23.6
58865 ncm-et-9 2018-11-12 10:05 01:26:46 1763204 500 302 19 179 +222.92 +/- 25.5
58864 ncm-et-10 2018-11-12 09:10 01:17:25 1964612 500 262 10 228 +192.71 +/- 22.04
58863 ncm-et-15 2018-11-12 09:00 01:15:50 1963233 500 291 10 199 +220.88 +/- 23.88
58862 ncm-et-4 2018-11-12 09:00 01:17:32 1964148 500 264 9 227 +195.51 +/- 22.06
58861 ncm-et-3 2018-11-12 08:57 01:16:27 1970984 500 275 14 211 +201.19 +/- 23.2
58860 ncm-et-13 2018-11-12 08:54 01:17:18 1978099 500 286 15 199 +210.89 +/- 24.01
58859 ncm-et-9 2018-11-12 08:36 01:28:27 1763562 500 300 19 181 +220.88 +/- 25.35
58858 ncm-et-10 2018-11-12 07:52 01:16:51 1964616 500 275 8 217 +206.98 +/- 22.64
58857 ncm-et-4 2018-11-12 07:42 01:16:26 1983367 500 273 13 214 +200.24 +/- 22.98
58856 ncm-et-15 2018-11-12 07:42 01:17:45 1964141 500 279 11 210 +207.95 +/- 23.18
58855 ncm-et-3 2018-11-12 07:39 01:17:37 1976954 500 284 14 202 +209.91 +/- 23.79
58854 ncm-et-13 2018-11-12 07:36 01:17:00 1972659 500 290 3 207 +227.04 +/- 23.07
58853 ncm-et-9 2018-11-12 07:07 01:27:56 1797989 500 259 23 218 +178.11 +/- 22.94
58852 ncm-et-10 2018-11-12 06:33 01:18:06 1969862 500 281 20 199 +201.19 +/- 24.1
58851 ncm-et-4 2018-11-12 06:24 01:17:10 1964301 500 259 6 235 +193.64 +/- 21.47
58850 ncm-et-15 2018-11-12 06:24 01:16:32 1960316 500 276 13 211 +203.11 +/- 23.17
58849 ncm-et-10 2018-11-12 06:23 00:09:24 1966619 57 28 3 26 +163.47 +/- 67.53
58848 ncm-et-3 2018-11-12 06:20 01:17:35 1965533 500 260 16 224 +185.33 +/- 22.45
58847 ncm-et-13 2018-11-12 06:18 01:16:49 1972810 500 293 14 193 +218.86 +/- 24.41
58846 ncm-et-9 2018-11-12 05:39 01:26:49 1747158 500 293 21 186 +211.87 +/- 25.01
58845 ncm-et-4 2018-11-12 05:06 01:17:09 1969776 500 260 15 225 +186.25 +/- 22.36
58844 ncm-et-15 2018-11-12 05:06 01:17:01 1966305 500 273 13 214 +200.24 +/- 22.98
58843 ncm-et-10 2018-11-12 05:04 01:17:59 1962327 500 284 7 209 +216.85 +/- 23.11
58842 ncm-et-3 2018-11-12 05:02 01:16:48 1964917 500 289 14 197 +214.85 +/- 24.13
58841 ncm-et-13 2018-11-12 05:01 01:16:19 1976864 500 279 11 210 +207.95 +/- 23.18
58840 ncm-et-9 2018-11-12 04:15 01:23:09 1862756 500 285 37 178 +189.0 +/- 25.56
58839 ncm-et-4 2018-11-12 03:49 01:15:37 1971923 500 278 12 210 +206.01 +/- 23.21
58838 ncm-et-15 2018-11-12 03:49 01:16:03 1971777 500 280 8 212 +211.87 +/- 22.95
58837 ncm-et-3 2018-11-12 03:44 01:17:21 1960474 500 275 15 210 +200.24 +/- 23.29
58836 ncm-et-10 2018-11-12 03:44 01:18:56 1956941 500 278 6 216 +211.87 +/- 22.62
58835 ncm-et-13 2018-11-12 03:42 01:17:30 1978881 500 269 13 218 +196.45 +/- 22.73

Commit

Commit ID 30a905c95d0b77874244c8b68ae77daba41ac545
Author 31m059
Date 2018-11-11 21:14:28 UTC
Simplify tropism. (#1807) We calculate tropism as a sum of two factors. The first is the number of squares in our kingFlank and Camp that are attacked by the enemy; the second is number of these squares that are attacked twice. Prior to this commit, we excluded squares we defended with pawns from this second value, but this appears unnecessary. (Doubly-attacked squares near our king are still dangerous.) The removal of this exclusion is a possible small Elo gain at STC (estimated +1.59) and almost exactly neutral at LTC (estimated +0.04). STC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 20942 W: 4550 L: 4427 D: 11965 http://tests.stockfishchess.org/tests/view/5be4e0ae0ebc595e0ae308a0 LTC: LLR: 2.94 (-2.94,2.94) [-3.00,1.00] Total: 56941 W: 9172 L: 9108 D: 38661 http://tests.stockfishchess.org/tests/view/5be4ec340ebc595e0ae30938 Bench: 3813986
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