Dev Builds » 20200613-1133

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 06:27:29 584478 4000 85 2560 1355 -251.19 ± 6.6 580 1315 105 0 0 -627.72 ± 33.6
ncm-dbt-02 06:28:00 586626 3998 55 2509 1434 -248.42 ± 6.18 534 1387 77 1 0 -678.22 ± 39.43
ncm-dbt-03 06:26:58 585886 4014 71 2582 1361 -255.05 ± 6.66 600 1312 94 1 0 -644.32 ± 35.57
ncm-dbt-04 06:27:34 568061 3984 64 2528 1392 -251.03 ± 6.55 568 1332 88 4 0 -642.98 ± 36.73
ncm-dbt-05 06:28:08 582544 4004 59 2601 1344 -260.41 ± 6.71 619 1305 77 1 0 -678.49 ± 39.43
20000 334 12780 6886 -253.19 ± 2.93 2901 6651 441 7 0 -653.21 ± 16.26

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
463173 ncm-dbt-03 586012 14 2 8 4 -159.03 ± 105.74 1 4 2 0 0 -311.09 ± 530.6
463172 ncm-dbt-05 581361 4 0 3 1 -336.56 ± 527.33 1 1 0 0 0 -1199.83 ± 312.71
463171 ncm-dbt-04 567522 484 8 288 188 -229.38 ± 16.41 52 176 14 0 0 -610.36 ± 100.02
463170 ncm-dbt-02 587664 498 9 318 171 -252.16 ± 18.31 71 167 11 0 0 -658.42 ± 116.76
463169 ncm-dbt-01 583489 500 14 325 161 -253.02 ± 19.42 76 159 15 0 0 -603.84 ± 95.91
463168 ncm-dbt-05 583196 500 12 323 165 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8
463167 ncm-dbt-03 584579 500 7 323 170 -258.74 ± 18.26 74 168 8 0 0 -715.51 ± 146.53
463166 ncm-dbt-04 569709 500 12 319 169 -248.52 ± 18.33 70 167 13 0 0 -629.41 ± 104.8
463165 ncm-dbt-02 587028 500 5 313 182 -249.64 ± 17.67 68 172 10 0 0 -676.04 ± 124.55
463164 ncm-dbt-01 584411 500 15 329 156 -256.44 ± 20.37 81 152 17 0 0 -581.38 ± 88.96
463163 ncm-dbt-05 579166 500 12 322 166 -251.89 ± 20.03 78 154 18 0 0 -571.09 ± 86.01
463162 ncm-dbt-03 586562 500 9 317 174 -249.64 ± 18.21 70 168 12 0 0 -643.67 ± 110.29
463161 ncm-dbt-04 565744 500 13 317 170 -245.2 ± 18.92 70 165 14 1 0 -592.29 ± 99.42
463160 ncm-dbt-02 586604 500 6 316 178 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53
463159 ncm-dbt-01 585169 500 7 306 187 -239.73 ± 17.44 63 173 14 0 0 -616.18 ± 100.06
463158 ncm-dbt-03 585717 500 8 320 172 -254.16 ± 18.52 72 169 8 1 0 -676.08 ± 142.43
463157 ncm-dbt-05 584537 500 1 325 174 -268.16 ± 17.93 77 170 3 0 0 -887.58 ± 222.18
463156 ncm-dbt-04 568514 500 4 323 173 -262.24 ± 19.26 79 161 10 0 0 -676.04 ± 124.55
463155 ncm-dbt-02 584958 500 11 317 172 -247.41 ± 19.45 74 158 18 0 0 -571.09 ± 86.01
463154 ncm-dbt-03 586562 500 16 320 164 -245.19 ± 19.65 74 156 20 0 0 -552.07 ± 80.89
463153 ncm-dbt-01 585464 500 7 333 160 -270.57 ± 19.71 84 158 8 0 0 -715.51 ± 146.53
463152 ncm-dbt-05 584453 500 4 309 187 -246.3 ± 16.1 61 183 6 0 0 -766.17 ± 188.02
463151 ncm-dbt-04 569989 500 9 325 166 -258.74 ± 19.36 78 160 12 0 0 -643.67 ± 110.29
463150 ncm-dbt-03 586012 500 8 310 182 -243.0 ± 17.61 65 172 13 0 0 -629.41 ± 104.8
463149 ncm-dbt-01 584874 500 9 316 175 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55
463148 ncm-dbt-02 587070 500 7 313 180 -247.41 ± 17.38 66 174 10 0 0 -676.04 ± 124.55
463147 ncm-dbt-05 578630 500 5 338 157 -279.17 ± 20.45 89 156 4 1 0 -766.23 ± 273.11
463146 ncm-dbt-03 586858 500 3 329 168 -270.57 ± 19.13 82 162 6 0 0 -766.17 ± 188.02
463145 ncm-dbt-04 568991 500 6 318 176 -254.16 ± 18.24 71 171 7 1 0 -694.74 ± 156.93
463144 ncm-dbt-02 585253 500 7 320 173 -255.29 ± 17.54 70 173 7 0 0 -739.05 ± 163.27
463143 ncm-dbt-01 587070 500 10 309 181 -239.73 ± 17.44 63 173 14 0 0 -616.18 ± 100.06
463142 ncm-dbt-05 584874 500 9 331 160 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
463141 ncm-dbt-03 585169 500 8 316 176 -249.64 ± 18.73 72 164 14 0 0 -616.18 ± 100.06
463140 ncm-dbt-04 563275 500 10 320 170 -251.89 ± 20.52 78 156 14 2 0 -571.11 ± 97.59
463139 ncm-dbt-02 587325 500 5 297 198 -232.26 ± 15.06 50 193 6 1 0 -715.55 ± 177.2
463138 ncm-dbt-01 583656 500 14 319 167 -246.3 ± 19.06 72 161 17 0 0 -581.38 ± 88.96
463137 ncm-dbt-05 583489 500 8 321 171 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
463136 ncm-dbt-03 585506 500 10 339 151 -274.22 ± 21.0 90 149 11 0 0 -659.13 ± 116.77
463135 ncm-dbt-04 570749 500 2 318 180 -258.74 ± 17.09 70 176 4 0 0 -837.28 ± 240.94
463134 ncm-dbt-02 587113 500 5 315 180 -251.89 ± 17.11 67 176 7 0 0 -739.05 ± 163.27
463133 ncm-dbt-05 583196 500 8 329 163 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
463132 ncm-dbt-01 581693 500 9 323 168 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55

Commit

Commit ID 42b7dbcb5e20ae9015122601522be8b455787a4a
Author xoto10
Date 2020-06-13 11:33:18 UTC
Tuned values for search constants Tuned search constants after many search patches since the last successful tune. 1st LTC @ 60+0.6 th 1 : LLR: 2.97 (-2.94,2.94) {0.25,1.75} Total: 57656 W: 7369 L: 7036 D: 43251 Ptnml(0-2): 393, 5214, 17336, 5437, 448 https://tests.stockfishchess.org/tests/view/5ee1e074f29b40b0fc95af19 SMP LTC @ 20+0.2 th 8 : LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 83576 W: 9731 L: 9341 D: 64504 Ptnml(0-2): 464, 7062, 26369, 7406, 487 https://tests.stockfishchess.org/tests/view/5ee35a21f29b40b0fc95b008 The changes were rebased on top of a successful patch by Viz (see #2734) and two different ways of doing this were tested. The successful test modified the constants in the patch by Viz in a similar manner to the tuning run: LTC (rebased) @ 60+0.6 th 1 : LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 193384 W: 24241 L: 23521 D: 145622 Ptnml(0-2): 1309, 17497, 58472, 17993, 1421 https://tests.stockfishchess.org/tests/view/5ee43319ca6c451633a995f9 Further work: the recent patch to quantize eval #2733 affects search quit quite a bit, so doing another tune in, say, three months time might be a good idea. closes https://github.com/official-stockfish/Stockfish/pull/2735 Bench 4246971
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