Dev Builds » 20171218-1530

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 06:24:48 585454 4000 26 2864 1110 -307.89 ± 8.15 877 1084 39 0 0 -802.69 ± 56.36
ncm-dbt-02 06:24:35 591543 4030 27 2902 1101 -310.63 ± 8.12 892 1091 32 0 0 -838.67 ± 62.72
ncm-dbt-03 06:25:34 586342 3996 29 2832 1135 -302.32 ± 7.89 841 1121 36 0 0 -816.55 ± 58.84
ncm-dbt-04 06:25:23 568368 3986 22 2834 1130 -305.08 ± 7.9 847 1118 28 0 0 -860.11 ± 67.48
ncm-dbt-05 06:25:48 583026 3988 28 2828 1132 -302.77 ± 7.89 840 1120 34 0 0 -826.21 ± 60.69
20000 132 14260 5608 -305.73 ± 3.57 4297 5534 169 0 0 -827.78 ± 26.39

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
476668 ncm-dbt-02 593542 30 0 23 7 -351.46 ± 117.87 8 7 0 0 0 -1199.83 ± 135.09
476667 ncm-dbt-04 567720 486 2 348 136 -309.59 ± 23.05 106 134 3 0 0 -882.61 ± 224.67
476666 ncm-dbt-05 583614 488 3 349 136 -307.54 ± 22.77 105 136 3 0 0 -883.33 ± 224.31
476665 ncm-dbt-03 587537 496 3 344 149 -292.95 ± 21.56 98 145 5 0 0 -796.78 ± 231.44
476664 ncm-dbt-01 586943 500 1 358 141 -311.05 ± 22.17 108 141 1 0 0 -1078.89 ± 154.95
476663 ncm-dbt-02 590953 500 5 344 151 -286.77 ± 21.65 97 145 8 0 0 -715.51 ± 146.53
476662 ncm-dbt-04 569270 500 3 346 151 -291.96 ± 20.71 96 151 3 0 0 -887.58 ± 222.18
476661 ncm-dbt-05 584117 500 4 346 150 -290.65 ± 20.88 96 150 4 0 0 -837.28 ± 240.94
476660 ncm-dbt-03 585970 500 7 346 147 -286.77 ± 21.65 97 145 8 0 0 -715.51 ± 146.53
476659 ncm-dbt-01 584622 500 5 356 139 -302.69 ± 23.22 108 135 7 0 0 -739.05 ± 163.27
476658 ncm-dbt-02 590224 500 2 354 144 -304.06 ± 21.74 104 144 2 0 0 -958.31 ± 196.57
476657 ncm-dbt-04 567244 500 3 354 143 -302.69 ± 22.25 105 141 4 0 0 -837.28 ± 240.94
476656 ncm-dbt-05 582485 500 5 355 140 -301.32 ± 23.06 107 136 7 0 0 -739.05 ± 163.27
476655 ncm-dbt-03 587240 500 2 352 146 -301.32 ± 21.77 103 144 3 0 0 -887.58 ± 222.18
476654 ncm-dbt-01 584664 500 1 362 137 -316.79 ± 23.85 115 131 4 0 0 -837.28 ± 240.94
476653 ncm-dbt-02 590396 500 3 370 127 -325.66 ± 24.86 121 125 4 0 0 -837.28 ± 240.94
476652 ncm-dbt-04 566257 500 4 366 130 -318.24 ± 24.36 117 128 5 0 0 -798.18 ± 231.48
476651 ncm-dbt-05 585970 500 1 358 141 -311.05 ± 22.86 110 137 3 0 0 -887.58 ± 222.18
476650 ncm-dbt-03 587028 500 4 360 136 -309.64 ± 23.04 110 136 4 0 0 -837.28 ± 240.94
476649 ncm-dbt-02 592029 500 2 359 139 -311.05 ± 22.86 110 137 3 0 0 -887.58 ± 222.18
476648 ncm-dbt-01 584076 500 1 364 135 -319.71 ± 23.83 116 131 3 0 0 -887.58 ± 222.18
476647 ncm-dbt-03 586816 500 5 363 132 -312.47 ± 23.7 113 132 5 0 0 -798.18 ± 231.48
476646 ncm-dbt-04 570108 500 3 349 148 -295.93 ± 21.48 100 146 4 0 0 -837.28 ± 240.94
476645 ncm-dbt-05 582068 500 4 351 145 -297.27 ± 21.63 101 145 4 0 0 -837.28 ± 240.94
476644 ncm-dbt-01 585759 500 4 365 131 -316.79 ± 23.85 115 131 4 0 0 -837.28 ± 240.94
476643 ncm-dbt-02 590181 500 3 360 137 -311.05 ± 22.86 110 137 3 0 0 -887.58 ± 222.18
476642 ncm-dbt-04 569829 500 0 358 142 -312.47 ± 21.96 108 142 0 0 0 -1199.83 ± 0.0
476641 ncm-dbt-03 587579 500 3 355 142 -304.06 ± 22.41 106 140 4 0 0 -837.28 ± 240.94
476640 ncm-dbt-02 591599 500 5 356 139 -302.69 ± 22.58 106 139 5 0 0 -798.18 ± 231.48
476639 ncm-dbt-05 582110 500 1 352 147 -302.69 ± 21.59 103 145 2 0 0 -958.31 ± 196.57
476638 ncm-dbt-01 586223 500 1 366 133 -322.66 ± 23.44 116 133 1 0 0 -1078.89 ± 154.95
476637 ncm-dbt-03 584495 500 4 348 148 -293.28 ± 21.5 99 146 5 0 0 -798.18 ± 231.48
476636 ncm-dbt-04 566493 500 1 366 133 -322.66 ± 23.44 116 133 1 0 0 -1078.89 ± 154.95
476635 ncm-dbt-02 593716 500 2 364 134 -318.24 ± 23.31 114 134 2 0 0 -958.31 ± 196.57
476634 ncm-dbt-05 582152 500 5 363 132 -312.47 ± 23.7 113 132 5 0 0 -798.18 ± 231.48
476633 ncm-dbt-01 585253 500 5 347 148 -290.65 ± 22.11 100 142 8 0 0 -715.51 ± 146.53
476632 ncm-dbt-02 591254 500 5 372 123 -325.66 ± 25.21 122 123 5 0 0 -798.18 ± 231.48
476631 ncm-dbt-03 584076 500 1 364 135 -319.71 ± 23.48 115 133 2 0 0 -958.31 ± 196.57
476630 ncm-dbt-01 586097 500 8 346 146 -285.48 ± 22.37 99 140 11 0 0 -659.13 ± 116.77
476629 ncm-dbt-04 570029 500 6 347 147 -289.35 ± 21.96 99 143 8 0 0 -715.51 ± 146.53
476628 ncm-dbt-05 581693 500 5 354 141 -299.96 ± 22.58 105 139 6 0 0 -766.17 ± 188.02

Commit

Commit ID b53239d6410cfc87bf454370671390b04879ef05
Author Günther Demetz
Date 2017-12-18 15:30:27 UTC
Enhanced verify search (#1338) by disabling null-move-pruning for the side to move for first part of the remaining search tree. This helps to better recognize zugzwang. STC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 18220 W: 3379 L: 3253 D: 11588 http://tests.stockfishchess.org/tests/view/5a2fa6460ebc590ccbb8bc2f LTC: LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 41899 W: 5359 L: 5265 D: 31275 http://tests.stockfishchess.org/tests/view/5a2fcf440ebc590ccbb8bc47 For further detail see commit notes and discussion at https://github.com/pb00068/Stockfish/commit/6401a80ab91df5c54390ac357409fef2e51ff5bb bench: 5776193
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