Dev Builds » 20210907-1759

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 06:55:24 585078 3988 686 1350 1952 -58.39 ± 5.12 12 829 966 185 2 -118.33 ± 10.92
ncm-dbt-02 06:56:15 585586 4010 702 1346 1962 -56.28 ± 5.1 7 831 967 199 1 -114.53 ± 10.92
ncm-dbt-03 06:55:59 586848 4014 692 1353 1969 -57.74 ± 5.11 9 841 959 198 0 -117.11 ± 10.97
ncm-dbt-04 06:54:59 570868 4000 643 1333 2024 -60.54 ± 5.04 9 849 966 175 1 -123.42 ± 10.91
ncm-dbt-05 06:56:36 583911 3988 672 1373 1943 -61.71 ± 5.07 10 858 949 177 0 -125.6 ± 11.02
20000 3395 6755 9850 -58.93 ± 2.28 47 4208 4807 934 4 -119.77 ± 4.9

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
406131 ncm-dbt-03 586943 14 3 1 10 +49.93 ± 60.15 0 0 5 2 0 +102.04 ± 134.61
406130 ncm-dbt-02 585843 10 2 5 3 -107.43 ± 84.35 0 3 2 0 0 -240.65 ± 570.11
406129 ncm-dbt-01 586985 488 74 162 252 -63.34 ± 14.01 0 107 118 19 0 -131.21 ± 31.26
406128 ncm-dbt-05 583154 488 79 160 249 -58.21 ± 14.65 1 103 116 24 0 -118.28 ± 31.66
406127 ncm-dbt-04 569549 500 76 161 263 -59.64 ± 14.18 2 102 125 21 0 -119.89 ± 30.32
406126 ncm-dbt-02 581985 500 89 160 251 -49.67 ± 14.77 0 102 117 31 0 -101.46 ± 31.58
406125 ncm-dbt-03 581902 500 79 166 255 -61.07 ± 14.38 1 108 118 23 0 -124.6 ± 31.38
406124 ncm-dbt-01 584748 500 91 164 245 -51.09 ± 14.18 0 99 125 26 0 -104.49 ± 30.42
406123 ncm-dbt-04 572679 500 81 168 251 -61.07 ± 13.38 1 101 132 16 0 -124.6 ± 29.14
406122 ncm-dbt-05 587494 500 78 169 253 -63.95 ± 14.91 0 118 105 27 0 -132.54 ± 33.35
406121 ncm-dbt-02 586731 500 94 163 243 -48.25 ± 14.7 1 97 122 30 0 -96.94 ± 30.88
406120 ncm-dbt-03 589796 500 89 168 243 -55.36 ± 13.84 0 101 127 22 0 -113.68 ± 30.06
406119 ncm-dbt-01 583321 500 92 165 243 -51.09 ± 14.58 1 99 122 28 0 -102.97 ± 30.86
406118 ncm-dbt-05 581111 500 100 176 224 -53.22 ± 14.15 1 98 127 24 0 -107.54 ± 30.1
406117 ncm-dbt-04 569310 500 75 163 262 -61.79 ± 14.55 1 110 115 24 0 -126.18 ± 31.84
406116 ncm-dbt-02 584579 500 93 171 236 -54.65 ± 14.36 0 104 120 26 0 -112.14 ± 31.13
406115 ncm-dbt-03 586646 500 89 176 235 -61.07 ± 13.82 0 107 123 20 0 -126.18 ± 30.59
406114 ncm-dbt-01 584748 500 80 176 244 -67.54 ± 14.51 3 110 117 20 0 -135.76 ± 31.48
406113 ncm-dbt-05 581693 500 68 164 268 -67.55 ± 14.51 0 119 108 23 0 -140.62 ± 32.9
406112 ncm-dbt-04 572477 500 72 167 261 -66.82 ± 14.75 0 120 105 25 0 -138.99 ± 33.37
406111 ncm-dbt-02 587792 500 80 161 259 -56.78 ± 14.19 1 102 124 23 0 -115.23 ± 30.51
406110 ncm-dbt-03 589069 500 91 165 244 -51.8 ± 14.62 3 94 127 26 0 -101.46 ± 30.14
406109 ncm-dbt-01 587240 500 92 164 244 -50.38 ± 14.41 3 91 131 25 0 -98.44 ± 29.57
406108 ncm-dbt-05 583950 500 87 177 236 -63.23 ± 14.61 1 112 113 24 0 -129.35 ± 32.14
406107 ncm-dbt-04 571190 500 87 163 250 -53.22 ± 13.73 0 98 130 22 0 -109.07 ± 29.63
406106 ncm-dbt-02 586604 500 89 166 245 -53.93 ± 14.05 3 92 134 21 0 -106.01 ± 29.04
406105 ncm-dbt-03 588558 500 78 172 250 -66.1 ± 14.45 1 114 113 22 0 -135.76 ± 32.12
406104 ncm-dbt-01 582569 500 85 168 247 -58.21 ± 14.79 2 104 120 23 1 -118.33 ± 31.1
406103 ncm-dbt-05 582110 500 86 176 238 -63.23 ± 14.06 1 108 121 20 0 -129.35 ± 30.88
406102 ncm-dbt-04 569869 500 80 155 265 -52.51 ± 14.79 1 102 118 29 0 -106.01 ± 31.43
406101 ncm-dbt-03 584832 500 91 165 244 -51.8 ± 15.01 1 103 115 31 0 -104.49 ± 31.86
406100 ncm-dbt-02 586012 500 83 165 252 -57.5 ± 15.16 2 106 115 26 1 -116.78 ± 31.85
406099 ncm-dbt-01 584706 500 90 168 242 -54.65 ± 14.36 1 100 126 22 1 -112.14 ± 30.22
406098 ncm-dbt-04 568872 500 87 169 244 -57.5 ± 14.63 3 99 126 21 1 -115.23 ± 30.2
406097 ncm-dbt-05 584537 500 82 182 236 -70.43 ± 14.05 6 101 130 13 0 -137.37 ± 29.29
406096 ncm-dbt-02 583363 500 84 173 243 -62.51 ± 14.58 0 114 111 25 0 -129.35 ± 32.44
406095 ncm-dbt-03 586689 500 81 182 237 -71.16 ± 14.36 1 119 110 20 0 -147.19 ± 32.57
406094 ncm-dbt-01 586308 500 82 183 235 -71.16 ± 14.78 2 119 107 22 0 -145.54 ± 33.06
406093 ncm-dbt-04 573002 500 85 187 228 -71.88 ± 13.96 1 117 115 17 0 -148.85 ± 31.72
406092 ncm-dbt-05 587240 500 92 169 239 -53.93 ± 13.77 0 99 129 22 0 -110.6 ± 29.78
406091 ncm-dbt-03 587197 500 91 158 251 -46.84 ± 15.01 2 95 121 32 0 -92.46 ± 31.03
406090 ncm-dbt-02 587367 500 88 182 230 -66.1 ± 13.6 0 111 122 17 0 -137.37 ± 30.65

Commit

Commit ID b7b6b4ba18bc9d291c2c2fd300c22a3e008dcbb2
Author Stefan Geschwentner
Date 2021-09-07 17:59:14 UTC
Further improve history updates Now even double history updates if a search failed low at an expected PV or CUT node. STC: LLR: 2.93 (-2.94,2.94) <-0.50,2.50> Total: 30736 W: 7891 L: 7674 D: 15171 Ptnml(0-2): 90, 3477, 8017, 3694, 90 https://tests.stockfishchess.org/tests/view/61364ae30cd98ab40c0c9da5 LTC: LLR: 2.94 (-2.94,2.94) <0.50,3.50> Total: 73600 W: 18684 L: 18326 D: 36590 Ptnml(0-2): 41, 7734, 20899, 8078, 48 https://tests.stockfishchess.org/tests/view/6136940f0cd98ab40c0c9df3 closes https://github.com/official-stockfish/Stockfish/pull/3694 Bench: 6030657
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