Dev Builds » 20200502-1526

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 06:24:59 582998 3992 67 2557 1368 -254.02 ± 6.52 579 1334 81 2 0 -664.97 ± 38.39
ncm-dbt-02 06:25:15 586861 4000 57 2598 1345 -260.64 ± 6.66 613 1318 66 3 0 -694.74 ± 42.61
ncm-dbt-03 06:24:51 586710 4000 67 2614 1319 -261.51 ± 6.91 636 1278 83 3 0 -657.16 ± 37.88
ncm-dbt-04 06:26:07 567936 4008 68 2590 1350 -257.16 ± 6.76 614 1295 94 1 0 -644.05 ± 35.57
ncm-dbt-05 06:25:17 580083 4000 66 2646 1288 -266.37 ± 7.03 664 1253 82 1 0 -667.43 ± 38.17
20000 325 13005 6670 -259.91 ± 3.03 3106 6478 406 10 0 -664.91 ± 16.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
438556 ncm-dbt-04 569310 8 1 6 1 -254.34 ± 561.59 2 1 1 0 0 -337.69 ± 541.44
438555 ncm-dbt-01 583531 492 8 318 166 -257.64 ± 19.43 75 161 9 1 0 -656.3 ± 131.35
438554 ncm-dbt-03 587537 500 9 326 165 -259.9 ± 19.78 80 157 13 0 0 -629.41 ± 104.8
438553 ncm-dbt-05 583489 500 11 340 149 -274.22 ± 21.55 92 145 13 0 0 -629.41 ± 104.8
438552 ncm-dbt-02 586477 500 5 333 162 -273.0 ± 20.01 85 159 5 1 0 -739.1 ± 208.89
438551 ncm-dbt-04 567759 500 12 320 168 -249.64 ± 19.24 74 160 16 0 0 -592.27 ± 92.24
438550 ncm-dbt-01 583950 500 4 321 175 -259.9 ± 17.53 72 173 5 0 0 -798.18 ± 231.48
438549 ncm-dbt-03 586054 500 11 331 158 -263.41 ± 20.74 85 150 15 0 0 -603.84 ± 95.91
438548 ncm-dbt-05 575802 500 4 331 165 -271.78 ± 18.67 81 165 4 0 0 -837.28 ± 240.94
438547 ncm-dbt-02 586943 500 13 322 165 -250.76 ± 18.88 73 163 14 0 0 -616.18 ± 100.06
438546 ncm-dbt-04 570029 500 8 324 168 -258.75 ± 19.36 77 163 9 1 0 -659.17 ± 131.36
438545 ncm-dbt-01 582402 500 8 319 173 -253.02 ± 18.64 72 168 9 1 0 -659.17 ± 131.36
438544 ncm-dbt-03 587707 500 11 329 160 -261.07 ± 21.21 84 152 12 2 0 -592.29 ± 106.46
438543 ncm-dbt-02 589069 500 4 323 173 -262.24 ± 18.12 75 169 6 0 0 -766.17 ± 188.02
438542 ncm-dbt-05 584748 500 5 331 164 -270.57 ± 19.42 83 160 7 0 0 -739.05 ± 163.27
438541 ncm-dbt-04 568832 500 8 341 151 -279.16 ± 21.04 92 149 9 0 0 -694.7 ± 134.18
438540 ncm-dbt-03 587452 500 6 330 164 -268.16 ± 19.13 81 162 7 0 0 -739.05 ± 163.27
438539 ncm-dbt-01 583866 500 10 316 174 -247.41 ± 17.65 67 172 11 0 0 -659.13 ± 116.77
438538 ncm-dbt-02 589069 500 8 326 166 -261.07 ± 18.55 76 166 8 0 0 -715.51 ± 146.53
438537 ncm-dbt-04 564762 500 10 312 178 -243.0 ± 18.13 67 168 15 0 0 -603.84 ± 95.91
438536 ncm-dbt-05 580365 500 15 324 161 -250.76 ± 20.13 78 153 19 0 0 -561.34 ± 83.33
438535 ncm-dbt-01 583950 500 12 320 168 -249.64 ± 18.99 73 162 15 0 0 -603.84 ± 95.91
438534 ncm-dbt-03 586054 500 8 309 183 -241.91 ± 16.93 62 177 11 0 0 -659.13 ± 116.77
438533 ncm-dbt-02 585000 500 9 324 167 -257.59 ± 20.26 79 159 10 2 0 -616.2 ± 118.22
438532 ncm-dbt-04 568752 500 10 309 181 -239.73 ± 17.17 62 175 13 0 0 -629.41 ± 104.8
438531 ncm-dbt-05 577971 500 7 334 159 -271.78 ± 20.15 86 155 9 0 0 -694.7 ± 134.18
438530 ncm-dbt-01 582694 500 8 326 166 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
438529 ncm-dbt-03 585970 500 5 343 152 -285.48 ± 20.59 93 152 5 0 0 -798.18 ± 231.48
438528 ncm-dbt-02 586350 500 11 321 168 -251.89 ± 19.02 74 162 14 0 0 -616.18 ± 100.06
438527 ncm-dbt-04 564840 500 9 329 162 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
438526 ncm-dbt-05 581070 500 11 323 166 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
438525 ncm-dbt-01 581070 500 11 321 168 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
438524 ncm-dbt-03 586858 500 8 323 169 -257.59 ± 19.22 76 164 9 1 0 -659.17 ± 131.36
438523 ncm-dbt-02 584790 500 5 321 174 -258.74 ± 17.68 72 172 6 0 0 -766.17 ± 188.02
438522 ncm-dbt-04 568752 500 6 326 168 -263.41 ± 19.12 79 162 9 0 0 -694.7 ± 134.18
438521 ncm-dbt-05 579166 500 7 324 169 -259.9 ± 19.78 79 160 10 1 0 -643.7 ± 122.54
438520 ncm-dbt-01 582527 500 6 316 178 -251.89 ± 17.68 69 172 9 0 0 -694.7 ± 134.18
438519 ncm-dbt-03 586054 500 9 323 168 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
438518 ncm-dbt-02 587197 500 2 328 170 -270.57 ± 18.22 79 168 3 0 0 -887.58 ± 222.18
438517 ncm-dbt-05 578054 500 6 339 155 -279.16 ± 20.45 90 153 7 0 0 -739.05 ± 163.27
438516 ncm-dbt-04 568395 500 4 323 173 -262.24 ± 18.98 78 163 9 0 0 -694.7 ± 134.18

Commit

Commit ID 7f8166db89120960effa2ddda1a25188e5ab95b8
Author Linmiao Xu
Date 2020-05-02 15:26:51 UTC
Tuned safe checks and minor piece king protectors A combination of terms related to king safety one tuned safe check weights, the other tuned knight and bishop king protector weights separately with some compensation in the high outpost bonuses given to the minor pieces. passed STC LLR: 2.95 (-2.94,2.94) {-0.50,1.50} Total: 39892 W: 7594 L: 7350 D: 24948 Ptnml(0-2): 643, 4559, 9314, 4771, 659 https://tests.stockfishchess.org/tests/view/5ea49635b908f6dd28f34b82 passed LTC LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 104934 W: 13300 L: 12834 D: 78800 Ptnml(0-2): 697, 9571, 31514, 9939, 746 https://tests.stockfishchess.org/tests/view/5ea4abf6b908f6dd28f34bcb closes https://github.com/official-stockfish/Stockfish/pull/2649 Bench 4800754
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