Dev Builds » 20220731-0903

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 06:52:46 585012 3988 1117 896 1975 +19.27 ± 5.19 2 349 1075 562 6 +37.96 ± 10.34
ncm-dbt-02 06:53:32 586469 4016 1141 959 1916 +15.76 ± 5.14 8 346 1114 536 4 +32.28 ± 10.13
ncm-dbt-03 06:52:20 587259 3994 1095 946 1953 +12.97 ± 5.3 8 385 1058 542 4 +26.67 ± 10.45
ncm-dbt-04 06:53:20 571646 4018 1153 948 1917 +17.74 ± 5.32 10 362 1056 575 6 +36.28 ± 10.46
ncm-dbt-05 06:53:38 585225 3984 1071 940 1973 +11.43 ± 5.24 9 378 1081 521 3 +23.93 ± 10.32
20000 5577 4689 9734 +15.44 ± 2.34 37 1820 5384 2736 23 +31.42 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
376008 ncm-dbt-02 588728 16 3 3 10 0.0 ± 60.91 0 1 6 1 0 -0.0 ± 125.57 ↓
376007 ncm-dbt-04 570308 18 5 5 8 0.0 ± 95.01 0 3 3 3 0 -0.0 ± 206.7 ↓
376006 ncm-dbt-05 587707 484 128 116 240 +8.62 ± 16.39 3 53 115 71 0 +21.56 ± 31.81 ↓
376005 ncm-dbt-01 586139 488 138 108 242 +21.38 ± 14.59 0 40 135 68 1 +41.49 ± 29.15 ↓
376004 ncm-dbt-03 586816 494 142 122 230 +14.08 ± 15.41 1 50 124 72 0 +29.61 ± 30.66 ↓
376003 ncm-dbt-02 588047 500 142 122 236 +13.91 ± 14.08 1 41 145 63 0 +29.25 ± 27.93 ↓
376002 ncm-dbt-04 571913 500 136 104 260 +22.27 ± 14.86 0 45 128 77 0 +44.72 ± 30.15 ↓
376001 ncm-dbt-05 585379 500 137 114 249 +15.99 ± 15.14 1 48 128 73 0 +33.46 ± 30.16 ↓
376000 ncm-dbt-01 585379 500 141 112 247 +20.17 ± 14.58 0 43 136 70 1 +39.08 ± 29.11 ↓
375999 ncm-dbt-03 583866 500 130 123 247 +4.86 ± 14.6 0 53 138 58 1 +8.34 ± 28.89 ↓
375998 ncm-dbt-02 582861 500 139 114 247 +17.39 ± 14.49 1 42 138 69 0 +36.26 ± 28.86 ↓
375997 ncm-dbt-04 571150 500 140 124 236 +11.12 ± 15.61 3 49 127 71 0 +26.46 ± 30.28 ↓
375996 ncm-dbt-01 586139 500 143 119 238 +16.69 ± 14.82 0 47 133 69 1 +32.05 ± 29.52 ↓
375995 ncm-dbt-05 586985 500 140 115 245 +17.39 ± 14.1 1 39 144 66 0 +36.26 ± 28.05 ↓
375994 ncm-dbt-03 586181 500 148 115 237 +22.97 ± 15.53 2 44 123 81 0 +48.96 ± 30.78 ↓
375993 ncm-dbt-02 581444 500 140 123 237 +11.82 ± 16.48 4 52 118 75 1 +27.85 ± 31.39 ↓
375992 ncm-dbt-04 570268 500 152 107 241 +31.36 ± 13.8 1 29 144 76 0 +64.66 ± 27.91 ↓
375991 ncm-dbt-03 588472 500 142 124 234 +12.51 ± 13.56 0 41 150 59 0 +25.06 ± 27.26 ↓
375990 ncm-dbt-01 583405 500 136 115 249 +14.6 ± 15.28 0 53 123 74 0 +29.25 ± 30.78 ↓
375989 ncm-dbt-05 585421 500 146 116 238 +20.87 ± 13.84 0 38 144 68 0 +41.89 ± 28.03 ↓
375988 ncm-dbt-02 587664 500 140 124 236 +11.12 ± 14.24 0 47 140 63 0 +22.27 ± 28.62 ↓
375987 ncm-dbt-04 572155 500 137 123 240 +9.73 ± 13.99 0 46 144 60 0 +19.48 ± 28.09 ↓
375986 ncm-dbt-03 587113 500 122 118 260 +2.78 ± 15.77 3 55 128 63 1 +8.34 ± 30.16 ↓
375985 ncm-dbt-01 583950 500 145 105 250 +27.85 ± 14.36 1 33 143 71 2 +54.65 ± 28.11 ↓
375984 ncm-dbt-05 585042 500 130 125 245 +3.47 ± 15.59 1 58 128 61 2 +5.56 ± 30.16 ↓
375983 ncm-dbt-02 589155 500 148 110 242 +26.46 ± 13.99 1 32 146 70 1 +53.22 ± 27.7 ↓
375982 ncm-dbt-04 572114 500 164 122 214 +29.25 ± 16.06 3 39 124 81 3 +58.93 ± 30.66 ↓
375981 ncm-dbt-01 584832 500 149 104 247 +31.35 ± 13.8 0 32 141 77 0 +63.23 ± 28.35 ↓
375980 ncm-dbt-03 588089 500 132 122 246 +6.95 ± 14.78 1 51 135 63 0 +15.3 ± 29.27 ↓
375979 ncm-dbt-05 582611 500 132 114 254 +12.51 ± 13.83 1 40 149 60 0 +26.46 ± 27.39 ↓
375978 ncm-dbt-02 585421 500 148 122 230 +18.08 ± 13.89 0 38 150 60 2 +33.46 ± 27.23 ↓
375977 ncm-dbt-04 572396 500 132 125 243 +4.86 ± 15.59 2 55 128 64 1 +11.12 ± 30.16 ↓
375976 ncm-dbt-03 588856 500 139 114 247 +17.38 ± 14.36 0 43 140 66 1 +33.46 ± 28.6 ↓
375975 ncm-dbt-01 586012 500 125 109 266 +11.12 ± 15.25 0 54 127 68 1 +20.87 ± 30.28 ↓
375974 ncm-dbt-05 582903 500 142 111 247 +21.57 ± 14.55 1 39 139 70 1 +43.3 ± 28.7 ↓
375973 ncm-dbt-02 586562 500 140 116 244 +16.69 ± 14.44 1 42 139 68 0 +34.86 ± 28.73 ↓
375972 ncm-dbt-04 572276 500 147 117 236 +20.87 ± 14.76 0 44 133 72 1 +40.48 ± 29.51 ↓
375971 ncm-dbt-03 588686 500 140 108 252 +22.27 ± 15.72 1 48 120 80 1 +44.72 ± 31.16 ↓
375970 ncm-dbt-01 584243 500 140 124 236 +11.12 ± 14.63 1 47 137 65 0 +23.66 ± 29.01 ↓
375969 ncm-dbt-02 588345 500 141 125 234 +11.12 ± 14.75 0 51 132 67 0 +22.27 ± 29.65 ↓
375968 ncm-dbt-04 572235 500 140 121 239 +13.21 ± 15.53 1 52 125 71 1 +26.46 ± 30.53 ↓
375967 ncm-dbt-05 585759 500 116 129 255 -9.03 ± 14.83 1 63 134 52 0 -16.69 ± 29.4 ↓

Commit

Commit ID 582c88ee94c24b4352477ffacf8de2afc521bcce
Author Michael Chaly
Date 2022-07-31 09:03:28 UTC
Do more TT cutoffs in case of exact bound The idea is that these TT entries are considered move valuable in TT replacement scheme - they are always overwriting other entries. So it makes sence for them to produce more aggressive cutoffs. passed STC https://tests.stockfishchess.org/tests/view/62e4d407b383a712b1385410 LLR: 2.95 (-2.94,2.94) <0.00,2.50> Total: 96632 W: 26045 L: 25659 D: 44928 Ptnml(0-2): 434, 10635, 25770, 11065, 412 passed LTC https://tests.stockfishchess.org/tests/view/62e523e2b383a712b1386193 LLR: 2.94 (-2.94,2.94) <0.50,3.00> Total: 77960 W: 21363 L: 20989 D: 35608 Ptnml(0-2): 190, 7591, 23009, 8035, 155 closes https://github.com/official-stockfish/Stockfish/pull/4114 bench 5820568
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