Dev Builds » 20190320-1357

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 08:34:51 1963690 3302 1916 64 1322 +220.31 +/- 9.24
ncm-et-4 08:32:49 1962993 3320 1950 80 1290 +221.52 +/- 9.39
ncm-et-9 08:35:38 1971644 3327 1933 68 1326 +220.15 +/- 9.23
ncm-et-10 08:37:40 1966596 3366 1926 96 1344 +211.71 +/- 9.21
ncm-et-13 08:37:00 1977572 3362 1955 73 1334 +219.76 +/- 9.21
ncm-et-15 08:35:16 1971469 3323 1919 84 1320 +215.95 +/- 9.28
20000 11599 465 7936 +218.2 +/- 3.78

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
74612 ncm-et-3 2019-03-21 02:46 00:47:11 1964149 302 180 7 115 +226.44 +/- 31.64
74611 ncm-et-9 2019-03-21 02:44 00:49:20 1976384 327 183 4 140 +213.56 +/- 28.17
74610 ncm-et-15 2019-03-21 02:43 00:49:58 1978097 323 184 8 131 +212.31 +/- 29.53
74609 ncm-et-4 2019-03-21 02:42 00:50:42 1963689 320 177 7 136 +205.64 +/- 28.82
74608 ncm-et-10 2019-03-21 02:37 00:55:38 1976283 366 215 9 142 +221.31 +/- 28.43
74607 ncm-et-13 2019-03-21 02:37 00:56:01 1972962 362 208 10 144 +213.34 +/- 28.23
74606 ncm-et-3 2019-03-21 01:26 01:18:22 1964301 500 289 6 205 +222.92 +/- 23.34
74605 ncm-et-9 2019-03-21 01:25 01:17:29 1970496 500 287 12 201 +214.85 +/- 23.8
74604 ncm-et-15 2019-03-21 01:24 01:17:28 1974217 500 282 12 206 +209.91 +/- 23.47
74603 ncm-et-4 2019-03-21 01:24 01:17:19 1969901 500 286 12 202 +213.85 +/- 23.74
74602 ncm-et-13 2019-03-21 01:21 01:15:18 1969570 500 304 15 181 +229.12 +/- 25.3
74601 ncm-et-10 2019-03-21 01:20 01:16:29 1969087 500 304 14 182 +230.16 +/- 25.21
74600 ncm-et-3 2019-03-21 00:09 01:16:40 1963686 500 295 11 194 +223.94 +/- 24.26
74599 ncm-et-9 2019-03-21 00:07 01:17:02 1973899 500 307 8 185 +239.74 +/- 24.83
74598 ncm-et-4 2019-03-21 00:06 01:16:41 1962613 500 309 11 180 +238.66 +/- 25.3
74597 ncm-et-15 2019-03-21 00:06 01:17:04 1974830 500 292 7 201 +224.97 +/- 23.65
74596 ncm-et-10 2019-03-21 00:01 01:17:21 1962787 500 280 11 209 +208.93 +/- 23.25
74595 ncm-et-13 2019-03-21 00:01 01:18:30 1979662 500 279 14 207 +205.04 +/- 23.46
74594 ncm-et-3 2019-03-20 22:49 01:18:25 1958936 500 285 10 205 +214.85 +/- 23.48
74593 ncm-et-9 2019-03-20 22:49 01:17:17 1965238 500 277 17 206 +200.24 +/- 23.59
74592 ncm-et-4 2019-03-20 22:46 01:18:48 1956710 500 294 14 192 +219.87 +/- 24.48
74591 ncm-et-15 2019-03-20 22:46 01:19:38 1953899 500 289 23 188 +206.01 +/- 24.88
74590 ncm-et-10 2019-03-20 22:44 01:16:46 1961541 500 285 13 202 +211.87 +/- 23.76
74589 ncm-et-13 2019-03-20 22:43 01:16:51 1987582 500 288 7 205 +220.88 +/- 23.38
74588 ncm-et-9 2019-03-20 21:30 01:18:02 1972512 500 286 8 206 +217.85 +/- 23.35
74587 ncm-et-3 2019-03-20 21:29 01:19:02 1963071 500 277 7 216 +209.91 +/- 22.66
74586 ncm-et-4 2019-03-20 21:28 01:17:16 1961576 500 304 10 186 +234.38 +/- 24.81
74585 ncm-et-15 2019-03-20 21:28 01:16:39 1979816 500 298 10 192 +228.08 +/- 24.38
74584 ncm-et-13 2019-03-20 21:25 01:17:22 1979817 500 298 9 193 +229.12 +/- 24.27
74583 ncm-et-10 2019-03-20 21:25 01:17:57 1962459 500 281 15 204 +206.01 +/- 23.68
74582 ncm-et-4 2019-03-20 20:11 01:16:20 1962614 500 287 15 198 +211.87 +/- 24.08
74581 ncm-et-9 2019-03-20 20:10 01:18:26 1972033 500 297 7 196 +230.16 +/- 23.99
74580 ncm-et-3 2019-03-20 20:10 01:18:16 1965537 500 290 9 201 +220.88 +/- 23.72
74579 ncm-et-15 2019-03-20 20:10 01:17:06 1968788 500 283 16 201 +206.98 +/- 23.9
74578 ncm-et-10 2019-03-20 20:08 01:15:28 1968008 500 280 19 201 +201.19 +/- 23.95
74577 ncm-et-13 2019-03-20 20:07 01:16:52 1980129 500 287 7 206 +219.87 +/- 23.31
74576 ncm-et-4 2019-03-20 18:54 01:15:43 1963848 500 293 11 196 +221.9 +/- 24.12
74575 ncm-et-3 2019-03-20 18:52 01:16:55 1966150 500 300 14 186 +226.0 +/- 24.91
74574 ncm-et-15 2019-03-20 18:51 01:17:23 1970637 500 291 8 201 +222.92 +/- 23.68
74573 ncm-et-9 2019-03-20 18:51 01:18:02 1970948 500 296 12 192 +223.94 +/- 24.43
74572 ncm-et-13 2019-03-20 18:50 01:16:06 1973287 500 291 11 198 +219.87 +/- 23.98
74571 ncm-et-10 2019-03-20 18:49 01:18:01 1966009 500 281 15 204 +206.01 +/- 23.68

Commit

Commit ID d320de761951687fa55716da1bd786df4c2cb14b
Author xoto10
Date 2019-03-20 13:57:34 UTC
Remove !extension check #2045 While looking at pruning using see_ge() (which is very valuable) it became apparent that the !extension test is not adding any value - simplify it away. STC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 56843 W: 12621 L: 12569 D: 31653 http://tests.stockfishchess.org/tests/view/5c8588cb0ebc5925cffe77f4 LTC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 78622 W: 13223 L: 13195 D: 52204 http://tests.stockfishchess.org/tests/view/5c8611cc0ebc5925cffe7f86 Further work could be to optimize the remaining see_ge() test. The idea of less pruning at higher depths is valuable, but perhaps the test (-PawnValueEg * depth) can be improved. Bench: 3188688
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