Dev Builds » 20220521-1042

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 06:51:59 584239 4000 1083 971 1946 +9.73 ± 5.19 4 392 1099 498 7 +18.95 ± 10.22
ncm-dbt-02 06:53:00 586388 3988 1110 930 1948 +15.69 ± 5.16 3 356 1101 526 8 +30.57 ± 10.2
ncm-dbt-03 06:52:59 584764 4016 1089 1005 1922 +7.27 ± 5.24 7 409 1092 493 7 +14.54 ± 10.27
ncm-dbt-04 06:52:41 568130 4024 1117 996 1911 +10.45 ± 5.11 3 382 1125 495 7 +20.23 ± 10.08
ncm-dbt-05 06:53:11 579841 3972 1074 950 1948 +10.85 ± 5.19 3 384 1091 502 6 +21.19 ± 10.26
20000 5473 4852 9675 +10.79 ± 2.32 20 1923 5508 2514 35 +21.08 ± 4.56

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
432681 ncm-dbt-03 584664 16 3 4 9 -21.74 ± 96.86 0 3 3 2 0 -43.66 ± 216.48
432680 ncm-dbt-04 570068 24 7 4 13 +43.65 ± 60.09 0 1 7 4 0 +88.74 ± 131.95
432679 ncm-dbt-05 578506 472 131 107 234 +17.68 ± 16.09 0 48 119 66 3 +31.0 ± 31.29
432678 ncm-dbt-02 585759 488 130 121 237 +6.41 ± 15.09 0 53 130 60 1 +11.4 ± 29.87
432677 ncm-dbt-01 584076 500 139 129 232 +6.95 ± 15.28 1 55 127 67 0 +15.3 ± 30.28
432676 ncm-dbt-03 582694 500 137 113 250 +16.69 ± 14.44 0 45 136 69 0 +33.46 ± 29.13
432675 ncm-dbt-04 567522 500 145 123 232 +15.3 ± 13.79 0 40 149 60 1 +29.25 ± 27.38
432674 ncm-dbt-05 581319 500 129 129 242 -0.0 ± 14.55 0 57 136 57 0 -0.0 ± 29.15
432673 ncm-dbt-02 586858 500 126 116 258 +6.95 ± 15.03 0 55 131 63 1 +12.51 ± 29.78
432672 ncm-dbt-01 585464 500 136 118 246 +12.51 ± 14.61 0 48 137 64 1 +23.66 ± 29.01
432671 ncm-dbt-03 583489 500 132 124 244 +5.56 ± 15.41 1 56 128 64 1 +11.12 ± 30.16
432670 ncm-dbt-04 567482 500 143 140 217 +2.08 ± 14.74 1 53 139 56 1 +4.17 ± 28.76
432669 ncm-dbt-05 578465 500 155 116 229 +27.15 ± 14.57 0 40 131 79 0 +54.65 ± 29.74
432668 ncm-dbt-02 585337 500 122 116 262 +4.17 ± 14.15 0 50 145 54 1 +6.95 ± 27.97
432667 ncm-dbt-01 584243 500 150 122 228 +19.48 ± 14.39 1 39 142 67 1 +39.08 ± 28.31
432666 ncm-dbt-04 567165 500 143 132 225 +7.64 ± 14.2 0 49 141 60 0 +15.3 ± 28.49
432665 ncm-dbt-03 585084 500 141 128 231 +9.04 ± 15.69 2 53 126 68 1 +19.48 ± 30.41
432664 ncm-dbt-05 578588 500 135 116 249 +13.21 ± 13.75 0 42 147 61 0 +26.46 ± 27.67
432663 ncm-dbt-02 587070 500 142 120 238 +15.3 ± 14.45 0 45 139 65 1 +29.25 ± 28.74
432662 ncm-dbt-01 584790 500 131 109 260 +15.3 ± 13.38 0 38 152 60 0 +30.65 ± 26.96
432661 ncm-dbt-04 566454 500 135 135 230 -0.0 ± 15.05 1 57 134 57 1 -0.0 ± 29.41
432660 ncm-dbt-03 584958 500 137 133 230 +2.78 ± 14.55 0 54 139 56 1 +4.17 ± 28.76
432659 ncm-dbt-05 580489 500 132 130 238 +1.39 ± 14.42 0 55 138 57 0 +2.78 ± 28.89
432658 ncm-dbt-01 583698 500 122 133 245 -7.64 ± 15.81 1 67 127 52 3 -18.08 ± 30.28
432657 ncm-dbt-02 587028 500 145 105 250 +27.85 ± 14.23 1 33 142 73 1 +56.07 ± 28.24
432656 ncm-dbt-04 569949 500 134 119 247 +10.43 ± 14.7 1 47 139 62 1 +20.87 ± 28.75
432655 ncm-dbt-03 584201 500 135 128 237 +4.86 ± 15.23 2 52 134 61 1 +11.12 ± 29.4
432654 ncm-dbt-05 582569 500 135 126 239 +6.26 ± 13.95 2 42 151 55 0 +15.3 ± 27.14
432653 ncm-dbt-02 585843 500 150 115 235 +24.36 ± 14.24 0 37 143 68 2 +46.13 ± 28.15
432652 ncm-dbt-01 583237 500 129 117 254 +8.34 ± 14.52 0 50 139 60 1 +15.3 ± 28.76
432651 ncm-dbt-04 567086 500 138 116 246 +15.3 ± 14.58 0 45 140 63 2 +27.85 ± 28.61
432650 ncm-dbt-03 586689 500 128 121 251 +4.86 ± 14.86 1 52 137 59 1 +9.73 ± 29.02
432649 ncm-dbt-05 577684 500 134 110 256 +16.69 ± 15.19 1 46 133 68 2 +32.05 ± 29.52
432648 ncm-dbt-02 585843 500 148 117 235 +21.57 ± 15.31 1 46 124 79 0 +44.72 ± 30.66
432647 ncm-dbt-04 566020 500 133 113 254 +13.9 ± 14.21 0 45 140 65 0 +27.85 ± 28.61
432646 ncm-dbt-01 585084 500 153 128 219 +17.38 ± 14.23 0 42 142 65 1 +33.46 ± 28.33
432645 ncm-dbt-03 584958 500 134 137 229 -2.09 ± 13.96 0 53 148 48 1 -5.56 ± 27.57
432644 ncm-dbt-02 587367 500 147 120 233 +18.78 ± 14.08 1 37 147 64 1 +37.67 ± 27.63
432643 ncm-dbt-03 586139 500 142 117 241 +17.39 ± 14.49 1 41 141 66 1 +34.86 ± 28.46
432642 ncm-dbt-05 581111 500 123 116 261 +4.86 ± 14.73 0 54 136 59 1 +8.34 ± 29.15
432641 ncm-dbt-01 583321 500 123 115 262 +5.56 ± 14.92 1 53 133 63 0 +12.51 ± 29.53
432640 ncm-dbt-04 571431 500 139 114 247 +17.38 ± 14.62 0 45 136 68 1 +33.46 ± 29.13

Commit

Commit ID cc7bcd5303a645223a6cd853817d3172754243aa
Author candirufish
Date 2022-05-21 10:42:33 UTC
Simplify a condition Principal variation depth late move reduction extension simplification. stc: https://tests.stockfishchess.org/tests/view/6285a1d19d18a78568e7fa24 LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 428536 W: 113433 L: 113851 D: 201252 Ptnml(0-2): 1671, 48606, 114090, 48272, 1629 ltc: https://tests.stockfishchess.org/tests/view/62871d20375cdc5de8cf5db3 LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 56792 W: 15123 L: 15011 D: 26658 Ptnml(0-2): 42, 5681, 16825, 5819, 29 closes https://github.com/official-stockfish/Stockfish/pull/4028 bench: 6501437
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