Dev Builds » 20200413-0716

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 06:25:15 584514 3998 61 2641 1296 -266.57 ± 6.96 658 1265 75 1 0 -682.76 ± 39.97
ncm-dbt-02 06:24:36 585876 4000 59 2597 1344 -260.2 ± 6.73 618 1304 76 2 0 -676.08 ± 39.67
ncm-dbt-03 06:26:13 586298 4002 63 2582 1357 -257.27 ± 6.61 600 1320 80 1 0 -671.79 ± 38.66
ncm-dbt-04 06:25:29 567421 4000 56 2574 1370 -257.31 ± 6.48 589 1341 69 1 0 -697.21 ± 41.73
ncm-dbt-05 06:25:25 580891 4000 67 2597 1336 -259.04 ± 6.73 615 1301 83 1 0 -665.33 ± 37.93
20000 306 12991 6703 -260.05 ± 3.0 3080 6531 383 6 0 -678.31 ± 17.45

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
451355 ncm-dbt-03 586604 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
451354 ncm-dbt-01 585759 498 4 328 166 -269.72 ± 19.37 82 160 7 0 0 -738.34 ± 163.26
451353 ncm-dbt-05 579661 500 10 330 160 -263.41 ± 20.22 83 154 13 0 0 -629.41 ± 104.8
451352 ncm-dbt-04 567839 500 4 334 162 -275.44 ± 19.11 84 162 4 0 0 -837.28 ± 240.94
451351 ncm-dbt-03 587113 500 8 324 168 -258.74 ± 19.89 80 156 14 0 0 -616.18 ± 100.06
451350 ncm-dbt-02 584790 500 7 331 162 -268.16 ± 19.42 82 160 8 0 0 -715.51 ± 146.53
451349 ncm-dbt-01 586646 500 9 322 169 -255.29 ± 18.66 74 165 11 0 0 -659.13 ± 116.77
451348 ncm-dbt-05 581693 500 7 322 171 -257.59 ± 17.83 72 171 7 0 0 -739.05 ± 163.27
451347 ncm-dbt-04 567997 500 9 324 167 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
451346 ncm-dbt-03 587282 500 4 330 166 -270.57 ± 18.83 81 164 5 0 0 -798.18 ± 231.48
451345 ncm-dbt-02 587919 500 6 333 161 -271.78 ± 19.57 84 159 7 0 0 -739.05 ± 163.27
451344 ncm-dbt-01 581818 500 8 330 162 -265.77 ± 19.41 81 160 9 0 0 -694.7 ± 134.18
451343 ncm-dbt-04 568355 500 10 314 176 -245.19 ± 17.63 66 172 12 0 0 -643.67 ± 110.29
451342 ncm-dbt-05 579951 500 6 331 163 -269.36 ± 19.28 82 161 7 0 0 -739.05 ± 163.27
451341 ncm-dbt-02 585169 500 5 319 176 -256.44 ± 18.53 73 169 7 1 0 -694.74 ± 156.93
451340 ncm-dbt-03 589155 500 7 330 163 -266.96 ± 18.99 80 163 7 0 0 -739.05 ± 163.27
451339 ncm-dbt-01 583656 500 9 332 159 -266.97 ± 20.66 85 154 10 1 0 -643.7 ± 122.54
451338 ncm-dbt-04 570029 500 5 310 185 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
451337 ncm-dbt-05 580945 500 7 326 167 -262.24 ± 18.41 76 167 7 0 0 -739.05 ± 163.27
451336 ncm-dbt-02 585211 500 7 331 162 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
451335 ncm-dbt-03 585801 500 12 306 182 -234.38 ± 16.71 58 178 14 0 0 -616.18 ± 100.06
451334 ncm-dbt-01 584411 500 6 331 163 -269.36 ± 19.28 82 161 7 0 0 -739.05 ± 163.27
451333 ncm-dbt-04 568077 500 8 330 162 -265.77 ± 19.41 81 160 9 0 0 -694.7 ± 134.18
451332 ncm-dbt-02 585084 500 6 322 172 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
451331 ncm-dbt-03 583196 500 5 324 171 -262.24 ± 18.98 77 166 6 1 0 -715.55 ± 177.2
451330 ncm-dbt-05 578424 500 10 315 175 -246.3 ± 18.81 70 166 13 1 0 -603.86 ± 103.96
451329 ncm-dbt-01 585169 500 9 326 165 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
451328 ncm-dbt-02 585379 500 6 317 177 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
451327 ncm-dbt-05 584958 500 11 319 170 -249.64 ± 19.5 75 158 17 0 0 -581.38 ± 88.96
451326 ncm-dbt-04 566336 500 7 314 179 -248.52 ± 17.52 66 176 7 1 0 -694.74 ± 156.93
451325 ncm-dbt-03 586223 500 10 329 161 -262.24 ± 20.07 82 155 13 0 0 -629.41 ± 104.8
451324 ncm-dbt-02 586985 500 9 323 168 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
451323 ncm-dbt-01 584159 500 11 337 152 -270.57 ± 21.37 90 146 14 0 0 -616.18 ± 100.06
451322 ncm-dbt-05 578013 500 7 327 166 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
451321 ncm-dbt-04 562029 500 8 322 170 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
451320 ncm-dbt-03 586139 500 8 314 178 -247.41 ± 17.1 65 176 9 0 0 -694.7 ± 134.18
451319 ncm-dbt-01 584495 500 5 335 160 -275.44 ± 19.41 85 160 5 0 0 -798.18 ± 231.48
451318 ncm-dbt-05 583489 500 9 327 164 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
451317 ncm-dbt-02 586477 500 13 321 166 -249.64 ± 19.5 74 161 14 1 0 -592.29 ± 99.42
451316 ncm-dbt-04 568713 500 5 326 169 -264.59 ± 18.11 76 169 5 0 0 -798.18 ± 231.48
451315 ncm-dbt-03 585169 500 9 324 167 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29

Commit

Commit ID db59696aaf91641ade911c4a6ca393a1691d78a8
Author Vizvezdenec
Date 2020-04-13 07:16:54 UTC
Scale up space weight with number of blocked pawns This idea is loosely based on stockfish losses in closed positions in different tournaments. Space weight symmetrically increases for both sides the more blocked position is. passed STC https://tests.stockfishchess.org/tests/view/5e919eefaf0a0143109dc8ce LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 16994 W: 3389 L: 3172 D: 10433 Ptnml(0-2): 277, 1931, 3918, 2040, 331 passed LTC https://tests.stockfishchess.org/tests/view/5e91d04faf0a0143109dc8ea LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 133386 W: 17316 L: 16763 D: 99307 Ptnml(0-2): 945, 12407, 39524, 12784, 1033 closes https://github.com/official-stockfish/Stockfish/pull/2626 Bench: 4966867
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