Dev Builds » 20200107-1000

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 08:30:57 1962178 3328 2031 65 1232 +235.84 +/- 9.61
ncm-et-4 08:31:05 1962355 3327 2041 53 1233 +239.49 +/- 9.59
ncm-et-9 08:31:09 1966868 3326 2023 51 1252 +237.0 +/- 9.5
ncm-et-10 08:30:37 1957765 3289 2022 64 1203 +238.29 +/- 9.73
ncm-et-13 08:31:08 1972691 3368 2063 59 1246 +238.13 +/- 9.55
ncm-et-15 08:31:00 1968989 3362 2075 58 1229 +240.79 +/- 9.62
20000 12255 350 7395 +238.26 +/- 3.92

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
110959 ncm-et-10 2020-01-08 21:04 00:44:31 1961701 289 180 5 104 +243.85 +/- 33.29
110958 ncm-et-3 2020-01-08 20:59 00:49:36 1964303 328 187 4 137 +218.82 +/- 28.55
110957 ncm-et-4 2020-01-08 20:58 00:50:19 1970525 327 217 3 107 +272.05 +/- 32.79
110956 ncm-et-9 2020-01-08 20:57 00:51:42 1973272 326 200 4 122 +241.49 +/- 30.53
110955 ncm-et-15 2020-01-08 20:54 00:54:48 1968165 362 217 7 138 +230.22 +/- 28.79
110954 ncm-et-13 2020-01-08 20:53 00:55:40 1966768 368 217 6 145 +226.71 +/- 27.96
110953 ncm-et-10 2020-01-08 19:46 01:16:39 1966462 500 310 8 182 +243.0 +/- 25.06
110952 ncm-et-3 2020-01-08 19:41 01:17:16 1959082 500 315 14 171 +241.91 +/- 26.07
110951 ncm-et-9 2020-01-08 19:39 01:16:28 1965693 500 312 8 180 +245.2 +/- 25.21
110950 ncm-et-4 2020-01-08 19:39 01:18:29 1952526 500 318 4 178 +256.44 +/- 25.22
110949 ncm-et-13 2020-01-08 19:37 01:15:20 1969723 500 307 17 176 +230.16 +/- 25.71
110948 ncm-et-15 2020-01-08 19:36 01:16:31 1963379 500 318 9 173 +250.77 +/- 25.8
110947 ncm-et-10 2020-01-08 18:29 01:16:01 1956178 500 322 11 167 +253.02 +/- 26.35
110946 ncm-et-3 2020-01-08 18:24 01:15:50 1964148 500 300 7 193 +233.32 +/- 24.21
110945 ncm-et-4 2020-01-08 18:22 01:15:53 1970964 500 328 5 167 +266.97 +/- 26.17
110944 ncm-et-9 2020-01-08 18:22 01:16:38 1963994 500 297 9 194 +228.08 +/- 24.2
110943 ncm-et-13 2020-01-08 18:20 01:16:01 1976244 500 301 5 194 +236.51 +/- 24.06
110942 ncm-et-15 2020-01-08 18:18 01:17:02 1972038 500 300 14 186 +226.0 +/- 24.91
110941 ncm-et-10 2020-01-08 17:10 01:18:07 1956025 500 289 11 200 +217.85 +/- 23.85
110940 ncm-et-4 2020-01-08 17:05 01:15:29 1973902 500 301 12 187 +229.12 +/- 24.79
110939 ncm-et-3 2020-01-08 17:05 01:17:57 1957265 500 320 10 170 +251.89 +/- 26.08
110938 ncm-et-9 2020-01-08 17:04 01:16:32 1963540 500 290 8 202 +221.9 +/- 23.61
110937 ncm-et-13 2020-01-08 17:01 01:17:21 1976390 500 297 13 190 +223.94 +/- 24.6
110936 ncm-et-15 2020-01-08 17:01 01:16:21 1976538 500 300 7 193 +233.32 +/- 24.21
110935 ncm-et-10 2020-01-08 15:49 01:19:56 1949940 500 306 11 183 +235.45 +/- 25.07
110934 ncm-et-3 2020-01-08 15:47 01:16:51 1961536 500 299 17 184 +221.9 +/- 25.11
110933 ncm-et-9 2020-01-08 15:47 01:16:34 1966306 500 320 8 172 +254.16 +/- 25.86
110932 ncm-et-4 2020-01-08 15:46 01:18:05 1936680 500 296 7 197 +229.12 +/- 23.92
110931 ncm-et-15 2020-01-08 15:44 01:15:27 1971113 500 303 7 190 +236.51 +/- 24.42
110930 ncm-et-13 2020-01-08 15:44 01:16:04 1980444 500 298 12 190 +226.0 +/- 24.57
110929 ncm-et-10 2020-01-08 14:31 01:17:08 1960002 500 305 11 184 +234.38 +/- 24.99
110928 ncm-et-3 2020-01-08 14:30 01:16:08 1963378 500 317 6 177 +253.02 +/- 25.38
110927 ncm-et-9 2020-01-08 14:30 01:15:57 1972967 500 295 4 201 +231.21 +/- 23.52
110926 ncm-et-4 2020-01-08 14:29 01:15:47 1973117 500 306 13 181 +233.32 +/- 25.26
110925 ncm-et-13 2020-01-08 14:28 01:15:04 1970634 500 316 2 182 +256.44 +/- 24.81
110924 ncm-et-15 2020-01-08 14:27 01:16:00 1963224 500 313 9 178 +245.2 +/- 25.4
110923 ncm-et-10 2020-01-08 13:12 01:18:15 1954050 500 310 7 183 +244.1 +/- 24.95
110922 ncm-et-3 2020-01-08 13:11 01:17:19 1965534 500 293 7 200 +226.0 +/- 23.71
110921 ncm-et-4 2020-01-08 13:11 01:17:03 1958775 500 275 9 216 +206.01 +/- 22.73
110920 ncm-et-15 2020-01-08 13:11 01:14:51 1968470 500 324 5 171 +262.24 +/- 25.83
110919 ncm-et-9 2020-01-08 13:11 01:17:18 1962307 500 309 10 181 +239.74 +/- 25.19
110918 ncm-et-13 2020-01-08 13:11 01:15:38 1968639 500 327 4 169 +266.97 +/- 25.96

Commit

Commit ID 83ecfa7c33ab3e89fcbc506f0f4d5312baa26aeb
Author Alain SAVARD
Date 2020-01-07 10:00:54 UTC
Use a faster implementation of Static Exchange Evaluation SEE (Static Exchange Evaluation) is a critical component, so we might indulge some tricks to make it faster. Another pull request #2469 showed some speedup by removing templates, this version uses Ronald de Man (@syzygy1) SEE implementation which also unrolls the for loop by suppressing the min_attacker() helper function and exits as soon as the last swap is conclusive. See Ronald de Man version there: https://github.com/syzygy1/Cfish/blob/master/src/position.c Patch testes against pull request #2469: LLR: 2.95 (-2.94,2.94) {-1.00,3.00} Total: 19365 W: 3771 L: 3634 D: 11960 Ptnml(0-2): 241, 1984, 5099, 2092, 255 http://tests.stockfishchess.org/tests/view/5e10eb135e5436dd91b27ba3 And since we are using new SPRT statistics, and that both pull requests finished with less than 20000 games I also tested against master as a speed-up: LLR: 2.99 (-2.94,2.94) {-1.00,3.00} Total: 18878 W: 3674 L: 3539 D: 11665 Ptnml(0-2): 193, 1999, 4966, 2019, 250 http://tests.stockfishchess.org/tests/view/5e10febf12ef906c8b388745 Non functional change
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