Dev Builds » 20180423-0749

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 06:01:33 2001264 2401 1095 71 1235 +158.29 +/- 9.37
ncm-et-4 06:01:39 1993379 2382 1129 73 1180 +165.5 +/- 9.64
ncm-et-5 01:47:23 2023367 724 350 17 357 +172.76 +/- 17.47
ncm-et-6 01:48:31 2026227 718 364 21 333 +180.67 +/- 18.3
ncm-et-7 01:44:35 2012202 697 284 19 394 +139.08 +/- 16.26
ncm-et-8 01:47:29 2008979 709 332 24 353 +161.67 +/- 17.67
ncm-et-9 06:01:05 2001654 2407 1128 63 1216 +165.13 +/- 9.44
ncm-et-10 05:59:22 1987878 2356 1085 74 1197 +159.41 +/- 9.54
ncm-et-11 01:49:24 2002386 718 335 10 373 +169.56 +/- 16.8
ncm-et-12 01:47:39 1995779 722 336 26 360 +159.51 +/- 17.52
ncm-et-13 06:01:28 1994159 2370 1093 68 1209 +160.85 +/- 9.47
ncm-et-14 01:48:33 2019614 726 319 24 383 +149.82 +/- 16.8
ncm-et-15 06:00:46 1979908 2368 1143 66 1159 +170.51 +/- 9.73
ncm-et-16 01:46:09 2005806 702 321 23 358 +157.45 +/- 17.47
20000 9314 579 10107 +162.67 +/- 3.28

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
51108 ncm-et-13 2018-08-25 00:09 00:23:13 1988928 152 77 1 74 +190.85 +/- 38.04
51107 ncm-et-15 2018-08-25 00:09 00:23:28 1955937 153 75 4 74 +174.57 +/- 38.76
51106 ncm-et-3 2018-08-25 00:07 00:25:17 1989243 170 70 3 97 +144.76 +/- 32.51
51105 ncm-et-10 2018-08-25 00:07 00:26:03 1979510 169 85 4 80 +181.38 +/- 37.3
51104 ncm-et-4 2018-08-25 00:06 00:26:30 1988139 170 76 3 91 +159.53 +/- 34.07
51103 ncm-et-9 2018-08-25 00:05 00:27:50 1989559 186 97 5 84 +188.37 +/- 36.67
51102 ncm-et-10 2018-08-24 22:53 01:12:38 1980755 500 225 12 263 +158.08 +/- 20.16
51101 ncm-et-13 2018-08-24 22:53 01:15:40 1989242 500 216 19 265 +144.72 +/- 20.26
51100 ncm-et-3 2018-08-24 22:51 01:14:52 1989561 500 247 7 246 +181.7 +/- 20.89
51099 ncm-et-4 2018-08-24 22:49 01:15:30 1987508 500 228 27 245 +148.02 +/- 21.48
51098 ncm-et-15 2018-08-24 22:49 01:19:06 1921323 500 257 12 231 +186.25 +/- 21.92
51097 ncm-et-9 2018-08-24 22:47 01:16:09 1988929 500 238 11 251 +170.15 +/- 20.76
51096 ncm-et-10 2018-08-24 21:34 01:17:34 1947194 500 228 19 253 +154.7 +/- 20.89
51095 ncm-et-13 2018-08-24 21:34 01:17:29 1950395 500 233 13 254 +164.07 +/- 20.67
51094 ncm-et-3 2018-08-24 21:33 01:17:14 1988454 500 210 21 269 +138.18 +/- 20.1
51093 ncm-et-4 2018-08-24 21:32 01:16:15 1989875 500 242 16 242 +169.27 +/- 21.41
51092 ncm-et-15 2018-08-24 21:32 01:15:46 1982482 500 230 16 254 +158.93 +/- 20.76
51091 ncm-et-9 2018-08-24 21:30 01:15:59 1989242 500 238 11 251 +170.15 +/- 20.76
51090 ncm-et-13 2018-08-24 20:16 01:17:20 1986883 500 230 11 259 +163.21 +/- 20.33
51089 ncm-et-4 2018-08-24 20:16 01:15:32 1989718 500 252 5 243 +188.08 +/- 20.98
51088 ncm-et-9 2018-08-24 20:16 01:13:44 1989085 500 217 14 269 +149.68 +/- 19.91
51087 ncm-et-3 2018-08-24 20:16 01:16:22 1990981 500 241 16 243 +168.4 +/- 21.36
51086 ncm-et-10 2018-08-24 20:16 01:17:33 1981068 500 228 11 261 +161.49 +/- 20.23
51085 ncm-et-15 2018-08-24 20:15 01:15:30 1983891 500 249 15 236 +176.33 +/- 21.72
22194 ncm-et-10 2018-04-23 14:34 00:28:28 2021325 187 83 9 95 +145.42 +/- 34.36
22193 ncm-et-7 2018-04-23 14:33 00:29:23 2025081 197 92 5 100 +164.77 +/- 33.02
22192 ncm-et-16 2018-04-23 14:31 00:30:47 2020026 202 92 4 106 +162.2 +/- 31.73
22191 ncm-et-8 2018-04-23 14:30 00:31:42 2022630 209 105 9 95 +172.49 +/- 34.71
22190 ncm-et-13 2018-04-23 14:29 00:32:32 2024426 218 104 5 109 +170.2 +/- 31.63
22189 ncm-et-15 2018-04-23 14:29 00:32:41 2017583 215 101 4 110 +168.91 +/- 31.25
22188 ncm-et-9 2018-04-23 14:29 00:32:51 2025902 221 97 6 118 +152.08 +/- 30.15
22187 ncm-et-6 2018-04-23 14:29 00:33:00 2026555 218 121 7 90 +201.64 +/- 35.78
22186 ncm-et-4 2018-04-23 14:29 00:33:00 1990590 212 94 9 109 +147.58 +/- 31.91
22185 ncm-et-5 2018-04-23 14:29 00:33:12 2022798 224 104 6 114 +162.99 +/- 30.93
22184 ncm-et-11 2018-04-23 14:29 00:33:04 2000989 218 106 1 111 +182.45 +/- 30.69
22183 ncm-et-12 2018-04-23 14:28 00:33:20 1970069 222 91 11 120 +131.09 +/- 30.26
22182 ncm-et-14 2018-04-23 14:28 00:33:59 2019533 226 105 8 113 +159.45 +/- 31.33
22181 ncm-et-3 2018-04-23 14:27 00:35:06 2024100 231 102 7 122 +151.87 +/- 29.78
22180 ncm-et-7 2018-04-23 13:16 01:15:12 1999324 500 192 14 294 +129.35 +/- 18.65
22179 ncm-et-10 2018-04-23 13:15 01:17:06 2017420 500 236 19 245 +161.49 +/- 21.32
22178 ncm-et-16 2018-04-23 13:15 01:15:22 1991586 500 229 19 252 +155.54 +/- 20.94
22177 ncm-et-15 2018-04-23 13:14 01:14:15 2018233 500 231 15 254 +160.64 +/- 20.73
22176 ncm-et-5 2018-04-23 13:14 01:14:11 2023937 500 246 11 243 +177.22 +/- 21.21
22175 ncm-et-9 2018-04-23 13:14 01:14:32 2027210 500 241 16 243 +168.4 +/- 21.36
22174 ncm-et-8 2018-04-23 13:13 01:15:47 1995329 500 227 15 258 +157.24 +/- 20.52
22173 ncm-et-13 2018-04-23 13:13 01:15:14 2025081 500 233 19 248 +158.93 +/- 21.16
22172 ncm-et-4 2018-04-23 13:13 01:14:52 2014448 500 237 13 250 +167.53 +/- 20.88
22171 ncm-et-3 2018-04-23 13:13 01:12:42 2025246 500 225 17 258 +153.86 +/- 20.57
22170 ncm-et-12 2018-04-23 13:13 01:14:19 2021489 500 245 15 240 +172.78 +/- 21.5
22169 ncm-et-6 2018-04-23 13:13 01:15:31 2025899 500 243 14 243 +171.9 +/- 21.3
22168 ncm-et-14 2018-04-23 13:12 01:14:34 2019696 500 214 16 270 +145.54 +/- 19.92
22167 ncm-et-11 2018-04-23 13:11 01:16:20 2003784 500 229 9 262 +164.07 +/- 20.1

Commit

Commit ID c794c8c8016dfdc8360c9d5ab74dffa9d93d9277
Author Stéphane Nicolet
Date 2018-04-23 07:49:05 UTC
Simplify the ShelterStrength[] array Remove the distinction between the king file and the two neighbours files in the ShelterStrength[] array. Instead we initialize the safety variable in the evaluate_shelter() function with a -10 penalty if our king is on a semi-open file (ie. if our king is on a file without a pawn protection). Also rename shelter_storm() to evaluate_shelter() while there. STC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 23153 W: 4795 L: 4677 D: 13681 http://tests.stockfishchess.org/tests/view/5adcb83d0ebc595ec7ff8aa7 LTC: LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 25728 W: 3934 L: 3821 D: 17973 http://tests.stockfishchess.org/tests/view/5adcdcb60ebc595ec7ff8adb See the commit history in PR#1559 for the proof that the committed version is equivalent to the version in the tests above: https://github.com/official-stockfish/Stockfish/pull/1559 Full credit to @protonspring for the renormalized values of the ShelterStrength[] array used for the simplification. Thanks! Bench: 4703935
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