Dev Builds » 20220220-2201

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 10:03:52 1184959 3322 1222 460 1640 +81.14 +/- 5.85 3 115 695 813 35 +163.85 +/- 12.92
ncm-dbt-02 09:59:18 1232256 3328 1233 474 1621 +80.66 +/- 5.72 1 116 696 825 26 +164.55 +/- 12.91
ncm-dbt-03 10:04:26 1267734 3342 1240 463 1639 +82.28 +/- 5.75 4 109 691 840 27 +168.94 +/- 12.95
ncm-dbt-04 10:03:51 1252663 3352 1241 465 1646 +81.92 +/- 5.8 2 119 688 835 32 +166.28 +/- 12.99
ncm-dbt-05 10:01:04 1259841 3338 1242 490 1606 +79.64 +/- 5.8 4 118 696 824 27 +162.69 +/- 12.91
ncm-dbt-06 10:05:03 1259320 3318 1204 430 1684 +82.57 +/- 5.89 2 121 672 829 35 +166.95 +/- 13.14
20000 7382 2782 9836 +81.37 +/- 2.37 16 698 4138 4966 182 +165.54 +/- 5.29

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
205068 ncm-dbt-01 1122317 158 54 27 77 +59.96 +/- 28.06 1 7 36 34 1 +123.72 +/- 57.42
205067 ncm-dbt-06 1224451 154 51 22 81 +66.22 +/- 26.82 1 4 38 33 1 +137.63 +/- 55.27
205066 ncm-dbt-05 1224561 166 63 23 80 +85.39 +/- 26.45 0 6 33 42 2 +171.83 +/- 60.24
205065 ncm-dbt-02 1195212 166 65 25 76 +85.39 +/- 26.45 0 5 36 39 3 +166.57 +/- 57.38
205064 ncm-dbt-03 1225233 174 63 30 81 +66.7 +/- 27.74 1 8 37 39 2 +134.07 +/- 56.67
205063 ncm-dbt-04 1242517 182 62 26 94 +69.64 +/- 25.21 0 10 35 46 0 +145.38 +/- 58.12
205062 ncm-dbt-06 1222284 500 197 66 237 +93.2 +/- 14.95 0 13 101 128 8 +187.16 +/- 33.99
205061 ncm-dbt-01 1147017 500 178 68 254 +77.7 +/- 14.72 0 18 108 120 4 +157.24 +/- 32.87
205060 ncm-dbt-02 1193682 500 185 66 249 +84.3 +/- 14.9 0 19 96 132 3 +174.55 +/- 34.94
205059 ncm-dbt-05 1213308 500 194 74 232 +85.04 +/- 14.35 0 16 100 132 2 +178.11 +/- 34.22
205058 ncm-dbt-04 1229828 500 192 84 224 +76.25 +/- 14.95 1 16 112 116 5 +153.86 +/- 32.2
205057 ncm-dbt-03 1231032 500 175 74 251 +71.16 +/- 14.5 0 21 108 120 1 +147.19 +/- 32.89
205056 ncm-dbt-06 1219798 500 182 65 253 +82.83 +/- 15.68 0 24 89 133 4 +169.27 +/- 36.1
205055 ncm-dbt-01 1135902 500 199 71 230 +90.97 +/- 15.88 1 19 87 137 6 +187.16 +/- 36.61
205054 ncm-dbt-05 1239467 500 174 83 243 +63.95 +/- 15.17 1 24 110 113 2 +130.94 +/- 32.59
205053 ncm-dbt-02 1191741 500 187 68 245 +84.3 +/- 14.62 0 17 100 130 3 +174.55 +/- 34.22
205052 ncm-dbt-04 1206472 500 179 63 258 +82.1 +/- 15.12 0 20 98 128 4 +167.53 +/- 34.57
205051 ncm-dbt-03 1228759 500 181 72 247 +76.97 +/- 14.83 0 21 101 126 2 +158.93 +/- 34.05
205050 ncm-dbt-06 1216002 500 178 73 249 +74.06 +/- 14.74 0 21 105 122 2 +152.18 +/- 33.38
205049 ncm-dbt-02 1196153 500 195 72 233 +87.26 +/- 14.1 0 12 107 127 4 +179.9 +/- 32.89
205048 ncm-dbt-01 1144581 500 175 69 256 +74.79 +/- 14.9 1 18 108 120 3 +153.86 +/- 32.88
205047 ncm-dbt-04 1199431 500 194 64 242 +92.45 +/- 14.94 0 15 96 133 6 +189.0 +/- 34.95
205046 ncm-dbt-05 1227754 500 182 68 250 +80.63 +/- 16.14 0 24 96 122 8 +157.24 +/- 34.86
205045 ncm-dbt-03 1251962 500 182 63 255 +84.31 +/- 15.04 1 16 100 129 4 +174.55 +/- 34.22
205044 ncm-dbt-02 1193163 500 180 68 252 +79.17 +/- 14.62 0 19 102 127 2 +164.07 +/- 33.88
205043 ncm-dbt-03 1222528 500 187 77 236 +77.7 +/- 13.86 0 12 120 114 4 +157.24 +/- 30.75
205042 ncm-dbt-05 1219876 500 197 67 236 +92.45 +/- 14.79 0 15 95 135 5 +190.85 +/- 35.14
205041 ncm-dbt-06 1227032 500 175 63 262 +79.17 +/- 16.1 0 26 92 126 6 +157.24 +/- 35.5
205040 ncm-dbt-01 1144702 500 182 85 233 +68.27 +/- 14.67 0 19 120 106 5 +134.15 +/- 31.01
205039 ncm-dbt-04 1205906 500 181 60 259 +85.78 +/- 15.08 0 15 107 120 8 +169.27 +/- 32.98
205038 ncm-dbt-02 1190799 500 195 78 227 +82.83 +/- 14.86 0 16 107 121 6 +165.8 +/- 33.0
205037 ncm-dbt-03 1231853 500 196 63 241 +94.7 +/- 15.4 2 14 87 143 4 +202.15 +/- 36.72
205036 ncm-dbt-01 1148040 500 189 55 256 +95.44 +/- 15.41 0 16 92 134 8 +192.71 +/- 35.72
205035 ncm-dbt-04 1223052 500 191 80 229 +78.43 +/- 14.17 0 15 112 120 3 +160.64 +/- 32.15
205034 ncm-dbt-05 1224702 500 195 88 217 +75.52 +/- 14.65 2 13 114 118 3 +157.24 +/- 31.83
205033 ncm-dbt-06 1227088 500 190 69 241 +85.78 +/- 15.89 1 17 101 122 9 +169.27 +/- 34.05
205032 ncm-dbt-04 1220843 500 177 67 256 +77.71 +/- 15.92 1 23 96 125 5 +157.24 +/- 34.86
205031 ncm-dbt-05 1231751 500 183 64 253 +84.3 +/- 14.33 0 14 107 125 4 +172.78 +/- 32.96
205030 ncm-dbt-02 1195590 500 174 69 257 +74.06 +/- 15.01 1 18 110 117 4 +150.51 +/- 32.56
205029 ncm-dbt-06 1227515 500 180 55 265 +88.74 +/- 14.72 0 15 100 130 5 +181.7 +/- 34.21
205028 ncm-dbt-03 1250052 500 197 65 238 +93.95 +/- 14.82 0 13 99 131 7 +190.85 +/- 34.36
205027 ncm-dbt-01 1134798 500 187 65 248 +86.52 +/- 14.67 0 15 103 127 5 +176.33 +/- 33.67
177493 ncm-dbt-02 1501713 162 52 28 82 +51.85 +/- 26.86 0 10 38 32 1 +101.44 +/- 55.81
177492 ncm-dbt-03 1500454 168 59 19 90 +84.34 +/- 25.46 0 4 39 38 3 +164.28 +/- 54.59
177491 ncm-dbt-01 1502315 164 58 20 86 +81.99 +/- 25.02 0 3 41 35 3 +158.44 +/- 52.45
177490 ncm-dbt-05 1497315 172 54 23 95 +63.31 +/- 25.88 1 6 41 37 1 +131.13 +/- 53.51
177489 ncm-dbt-04 1493256 170 65 21 84 +92.01 +/- 24.8 0 5 32 47 1 +193.58 +/- 61.29
177488 ncm-dbt-06 1510393 164 51 17 96 +73.09 +/- 20.33 0 1 46 35 0 +153.29 +/- 47.38

Commit

Commit ID 27139dedac14af400f5b18e2ab50aca3f8cf0e33
Author Michael Chaly
Date 2022-02-20 22:01:22 UTC
Adjust usage of LMR for 2nd move in move ordering Current master prohibits usage of LMR for 2nd move at rootNode. This patch also disables LMR for 2nd move not only at rootNode but also at first PvNode that is a reply to rootNode. passed STC: https://tests.stockfishchess.org/tests/view/620e8c9026f5b17ec885143a LLR: 2.94 (-2.94,2.94) <0.00,2.50> Total: 54096 W: 14305 L: 13996 D: 25795 Ptnml(0-2): 209, 6075, 14192, 6342, 230 passed LTC: https://tests.stockfishchess.org/tests/view/620eb327b1792e8985f81fb8 LLR: 2.94 (-2.94,2.94) <0.50,3.00> Total: 110864 W: 29602 L: 29156 D: 52106 Ptnml(0-2): 112, 11147, 32455, 11619, 99 closes https://github.com/official-stockfish/Stockfish/pull/3940 bench 6820724
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