Dev Builds » 20211021-1042

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 11:52:39 1232802 3962 1296 681 1985 +54.37 +/- 5.42 1 238 908 813 21 +107.67 +/- 11.3
ncm-dbt-02 11:48:24 1231357 3942 1271 680 1991 +52.48 +/- 5.45 0 239 931 772 29 +101.89 +/- 11.16
ncm-dbt-03 11:51:34 1264914 3974 1268 695 2011 +50.45 +/- 5.28 1 232 963 775 16 +100.26 +/- 10.96
ncm-dbt-04 00:30:43 1492317 170 53 35 82 +36.93 +/- 27.59 1 13 38 33 0 +79.0 +/- 55.68
ncm-dbt-05 11:49:29 1258131 3964 1286 727 1951 +49.32 +/- 5.39 2 241 960 754 25 +96.35 +/- 10.98
ncm-dbt-06 11:53:06 1258444 3988 1236 726 2026 +44.68 +/- 5.39 0 274 954 748 18 +87.53 +/- 11.03
20000 6410 3544 10046 +50.13 +/- 2.4 5 1237 4754 3895 109 +98.52 +/- 4.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
208763 ncm-dbt-02 1190351 278 84 52 142 +40.17 +/- 20.29 0 21 65 53 0 +81.44 +/- 42.47
208762 ncm-dbt-01 1183418 298 91 43 164 +56.45 +/- 19.73 0 18 66 64 1 +113.46 +/- 42.17
208761 ncm-dbt-05 1221764 296 102 59 135 +50.83 +/- 20.58 0 22 62 63 1 +101.38 +/- 43.35
208760 ncm-dbt-03 1222179 308 93 56 159 +41.94 +/- 18.8 0 20 78 55 1 +82.75 +/- 38.64
208759 ncm-dbt-06 1230541 320 111 63 146 +52.51 +/- 20.63 0 26 62 70 2 +102.78 +/- 42.99
208758 ncm-dbt-02 1198370 500 158 84 258 +51.8 +/- 15.65 0 31 120 93 6 +96.94 +/- 31.16
208757 ncm-dbt-01 1155363 500 158 93 249 +45.42 +/- 14.68 0 32 121 97 0 +92.46 +/- 31.03
208756 ncm-dbt-03 1261304 500 154 77 269 +53.93 +/- 15.12 1 24 127 93 5 +104.49 +/- 30.12
208755 ncm-dbt-05 1212003 500 165 86 249 +55.36 +/- 14.53 0 23 129 94 4 +107.54 +/- 29.8
208754 ncm-dbt-06 1228408 500 149 98 253 +35.56 +/- 15.74 0 43 115 90 2 +68.99 +/- 31.82
208753 ncm-dbt-02 1199728 500 159 84 257 +52.51 +/- 15.05 0 28 123 95 4 +101.46 +/- 30.72
208752 ncm-dbt-01 1219338 500 161 95 244 +46.13 +/- 16.21 1 38 108 100 3 +90.97 +/- 32.79
208751 ncm-dbt-03 1235523 500 165 112 223 +36.97 +/- 14.83 0 35 129 84 2 +71.89 +/- 29.97
208750 ncm-dbt-05 1222845 500 161 97 242 +44.72 +/- 14.77 0 30 129 88 3 +86.52 +/- 29.92
208749 ncm-dbt-06 1212626 500 160 95 245 +45.42 +/- 15.57 0 36 116 95 3 +88.0 +/- 31.71
208748 ncm-dbt-02 1192563 500 157 94 249 +44.01 +/- 15.61 0 36 119 91 4 +83.57 +/- 31.31
208747 ncm-dbt-01 1188017 500 160 76 264 +58.93 +/- 14.96 0 25 120 101 4 +115.23 +/- 31.11
208746 ncm-dbt-03 1223252 500 171 84 245 +61.07 +/- 14.92 0 27 110 112 1 +124.6 +/- 32.59
208745 ncm-dbt-05 1235468 500 161 92 247 +48.25 +/- 15.84 2 32 113 101 2 +98.44 +/- 32.13
208744 ncm-dbt-06 1215348 500 147 87 266 +41.89 +/- 14.99 0 33 127 87 3 +80.63 +/- 30.22
208743 ncm-dbt-02 1226768 500 170 84 246 +60.36 +/- 15.02 0 25 118 103 4 +118.33 +/- 31.4
208742 ncm-dbt-01 1191907 500 178 95 227 +58.21 +/- 14.66 0 24 122 101 3 +115.23 +/- 30.81
208741 ncm-dbt-03 1236308 500 153 81 266 +50.38 +/- 13.86 0 24 130 96 0 +102.97 +/- 29.68
208740 ncm-dbt-05 1239110 500 166 101 233 +45.42 +/- 14.68 0 31 124 94 1 +90.97 +/- 30.61
208739 ncm-dbt-06 1255392 500 145 95 260 +34.86 +/- 14.44 0 35 130 85 0 +70.44 +/- 29.84
208738 ncm-dbt-01 1212837 500 170 83 247 +61.07 +/- 15.18 0 25 118 102 5 +118.33 +/- 31.4
208737 ncm-dbt-02 1196546 500 162 83 255 +55.36 +/- 14.79 0 27 119 102 2 +110.6 +/- 31.28
208736 ncm-dbt-05 1232752 500 159 85 256 +51.8 +/- 15.14 0 31 116 101 2 +102.97 +/- 31.72
208735 ncm-dbt-03 1228234 500 158 94 248 +44.72 +/- 15.41 0 37 113 99 1 +89.48 +/- 32.12
208734 ncm-dbt-06 1246915 500 160 81 259 +55.36 +/- 13.98 0 23 125 102 0 +113.68 +/- 30.37
208733 ncm-dbt-03 1245396 500 152 89 259 +44.01 +/- 14.33 0 30 127 93 0 +89.48 +/- 30.19
208732 ncm-dbt-05 1228516 500 168 89 243 +55.36 +/- 16.3 0 35 107 102 6 +104.49 +/- 32.97
208731 ncm-dbt-02 1189448 500 154 75 271 +55.36 +/- 15.06 0 29 115 104 2 +110.6 +/- 31.86
208730 ncm-dbt-01 1226990 500 160 95 245 +45.42 +/- 15.19 0 34 119 95 2 +89.48 +/- 31.31
208729 ncm-dbt-06 1210760 500 159 88 253 +49.67 +/- 14.77 0 29 123 96 2 +98.44 +/- 30.73
208728 ncm-dbt-03 1234081 500 169 79 252 +63.23 +/- 15.14 0 26 111 110 3 +126.18 +/- 32.44
208727 ncm-dbt-02 1196430 500 174 87 239 +61.07 +/- 15.95 0 30 109 105 6 +116.78 +/- 32.73
208726 ncm-dbt-05 1236386 500 156 88 256 +47.54 +/- 14.92 0 27 134 83 6 +88.0 +/- 29.2
208725 ncm-dbt-01 1218873 500 168 78 254 +63.23 +/- 15.4 0 29 104 115 2 +127.76 +/- 33.49
208724 ncm-dbt-06 1233659 500 156 85 259 +49.67 +/- 15.79 0 34 116 95 5 +93.95 +/- 31.72
177847 ncm-dbt-02 1492010 164 53 37 74 +34.0 +/- 26.19 0 12 43 26 1 +64.28 +/- 52.16
177846 ncm-dbt-05 1494343 168 48 30 90 +37.37 +/- 24.0 0 10 46 28 0 +75.62 +/- 50.04
177845 ncm-dbt-01 1498475 164 50 23 91 +57.72 +/- 29.05 0 13 30 38 1 +114.09 +/- 61.92
177844 ncm-dbt-03 1497952 166 53 23 90 +63.48 +/- 27.93 0 9 38 33 3 +117.28 +/- 55.85
177843 ncm-dbt-06 1492355 168 49 34 85 +31.1 +/- 27.26 0 15 40 28 1 +58.45 +/- 54.3
177842 ncm-dbt-04 1492317 170 53 35 82 +36.93 +/- 27.59 1 13 38 33 0 +79.0 +/- 55.68

Commit

Commit ID 8a8640a761f266979c7130a49ebbc9ed4c680102
Author Stefan Geschwentner
Date 2021-10-21 10:42:30 UTC
Double extend more often via LMR Allow for first three moves always a two plies deeper LMR search. STC: LLR: 2.96 (-2.94,2.94) <-2.50,0.50> Total: 206096 W: 51966 L: 52093 D: 102037 Ptnml(0-2): 664, 23817, 54293, 23530, 744 https://tests.stockfishchess.org/tests/view/616f197d40f619782fd4f75a LTC: LLR: 2.93 (-2.94,2.94) <-2.50,0.50> Total: 62384 W: 15567 L: 15492 D: 31325 Ptnml(0-2): 40, 6633, 17777, 6696, 46 https://tests.stockfishchess.org/tests/view/616ffa1b4f0b65a0e231e682 closes https://github.com/official-stockfish/Stockfish/pull/3752 Bench: 6154836
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