Dev Builds » 20230401-1428

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 14:57:31 1203829 5000 2063 469 2468 +114.76 +/- 4.39 0 84 785 1584 47 +251.22 +/- 12.16
ncm-dbt-02 14:50:41 1235108 4958 2071 457 2430 +117.37 +/- 4.31 0 64 785 1582 48 +258.58 +/- 12.15
ncm-dbt-03 14:56:07 1231293 5010 2119 481 2410 +117.92 +/- 4.37 1 71 777 1601 55 +258.94 +/- 12.22
ncm-dbt-04 14:58:36 1235136 5032 2090 470 2472 +115.98 +/- 4.38 2 68 813 1574 59 +252.58 +/- 11.93
20000 8343 1877 9780 +116.5 +/- 2.18 3 287 3160 6341 209 +255.3 +/- 6.05

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
181907 ncm-dbt-01 1221766 0 0 0 0 -0.0 +/- 1199.83 0 0 0 0 0 -0.0 +/- 1199.83
181906 ncm-dbt-03 1216929 10 3 2 5 +34.85 +/- 119.9 0 1 2 2 0 +70.44 +/- 307.49
181905 ncm-dbt-04 1226385 32 14 6 12 +88.71 +/- 45.76 0 0 8 8 0 +190.81 +/- 121.76
181898 ncm-dbt-02 1234793 458 198 31 229 +132.79 +/- 14.28 0 6 56 161 6 +303.42 +/- 46.14
181897 ncm-dbt-01 1206653 500 202 48 250 +110.6 +/- 13.89 0 9 82 155 4 +240.82 +/- 37.9
181896 ncm-dbt-03 1214022 500 211 50 239 +116.0 +/- 13.54 0 7 79 160 4 +256.44 +/- 38.62
181893 ncm-dbt-04 1225974 500 195 37 268 +113.68 +/- 14.22 0 9 80 155 6 +245.2 +/- 38.39
181888 ncm-dbt-02 1240980 500 215 48 237 +120.67 +/- 12.78 0 3 81 162 4 +270.57 +/- 37.86
181887 ncm-dbt-01 1190294 500 212 44 244 +121.45 +/- 12.77 0 3 80 163 4 +273.0 +/- 38.12
181886 ncm-dbt-03 1223221 500 212 44 244 +121.45 +/- 12.4 0 3 78 167 2 +277.93 +/- 38.66
181881 ncm-dbt-04 1246357 500 209 43 248 +119.89 +/- 14.02 0 6 80 156 8 +258.75 +/- 38.32
181878 ncm-dbt-02 1237436 500 200 51 249 +106.77 +/- 13.72 0 8 89 149 4 +230.16 +/- 36.26
181877 ncm-dbt-01 1224657 500 204 42 254 +116.77 +/- 13.36 0 8 74 166 2 +263.42 +/- 39.97
181872 ncm-dbt-03 1239282 500 205 49 246 +112.14 +/- 14.85 0 12 77 154 7 +238.66 +/- 39.1
181870 ncm-dbt-04 1240160 500 205 51 244 +110.6 +/- 14.22 0 10 81 154 5 +238.66 +/- 38.15
181868 ncm-dbt-02 1238434 500 205 36 259 +122.24 +/- 14.0 0 8 71 165 6 +270.57 +/- 40.83
181861 ncm-dbt-01 1208282 500 203 46 251 +112.91 +/- 13.73 0 8 81 157 4 +247.41 +/- 38.13
181860 ncm-dbt-03 1224520 500 210 47 243 +117.55 +/- 14.2 0 8 78 157 7 +254.16 +/- 38.89
181859 ncm-dbt-04 1231114 500 208 40 252 +121.45 +/- 13.49 0 6 75 164 5 +270.57 +/- 39.67
181852 ncm-dbt-02 1246674 500 201 56 243 +103.73 +/- 13.71 0 11 84 154 1 +228.08 +/- 37.44
181851 ncm-dbt-01 1215855 500 210 53 237 +112.91 +/- 13.73 0 10 75 163 2 +251.89 +/- 39.67
181850 ncm-dbt-03 1225355 500 217 43 240 +126.17 +/- 13.24 0 5 71 169 5 +285.49 +/- 40.81
181849 ncm-dbt-04 1248325 500 214 42 244 +124.6 +/- 13.8 0 6 73 164 7 +275.45 +/- 40.24
181842 ncm-dbt-02 1227294 500 214 46 240 +121.45 +/- 13.31 0 6 74 166 4 +273.0 +/- 39.95
181841 ncm-dbt-01 1180918 500 205 50 245 +111.37 +/- 14.22 0 10 80 155 5 +240.82 +/- 38.39
181840 ncm-dbt-03 1230731 500 216 48 236 +121.45 +/- 14.34 0 7 77 157 9 +261.07 +/- 39.14
181839 ncm-dbt-04 1228609 500 215 52 233 +117.55 +/- 13.36 0 6 79 161 4 +261.07 +/- 38.58
181832 ncm-dbt-02 1214068 500 217 51 232 +119.89 +/- 12.98 0 5 77 165 3 +270.57 +/- 39.07
181831 ncm-dbt-01 1183521 500 202 49 249 +109.83 +/- 14.22 0 10 82 153 5 +236.51 +/- 37.9
181830 ncm-dbt-03 1234779 500 209 65 226 +102.97 +/- 14.49 0 14 81 152 3 +221.9 +/- 38.08
181829 ncm-dbt-04 1230057 500 213 46 241 +120.67 +/- 14.18 0 6 80 155 9 +258.75 +/- 38.32
181822 ncm-dbt-02 1242808 500 208 48 244 +115.22 +/- 13.55 0 6 83 156 5 +251.89 +/- 37.57
181821 ncm-dbt-03 1254234 500 223 45 232 +129.35 +/- 13.36 1 4 65 176 4 +301.33 +/- 42.75
181820 ncm-dbt-01 1190689 500 198 48 254 +107.54 +/- 13.89 0 10 83 154 3 +234.38 +/- 37.67
181819 ncm-dbt-04 1244310 500 204 48 248 +112.14 +/- 15.15 2 11 70 163 4 +249.64 +/- 40.9
181812 ncm-dbt-02 1219200 500 211 48 241 +117.55 +/- 14.2 0 5 87 148 10 +247.41 +/- 36.56
181811 ncm-dbt-03 1219853 500 198 42 260 +112.14 +/- 14.22 0 7 88 147 8 +236.51 +/- 36.44
181810 ncm-dbt-01 1231115 500 209 50 241 +114.45 +/- 14.69 0 11 76 156 7 +245.2 +/- 39.38
181809 ncm-dbt-04 1248508 500 209 53 238 +112.13 +/- 12.69 0 0 100 144 6 +240.82 +/- 33.18
181802 ncm-dbt-02 1249393 500 202 42 256 +115.22 +/- 13.55 0 6 83 156 5 +251.89 +/- 37.57
181801 ncm-dbt-03 1261301 500 215 46 239 +122.24 +/- 13.12 0 3 81 160 6 +270.57 +/- 37.86
181800 ncm-dbt-01 1188374 500 218 39 243 +130.14 +/- 14.23 0 5 72 162 11 +282.94 +/- 40.5
181799 ncm-dbt-04 1216704 500 204 52 244 +109.07 +/- 13.89 0 8 87 150 5 +234.38 +/- 36.71

Commit

Commit ID 6a6e32dfc80488dfdcd6c23e601063b47729e890
Author FauziAkram
Date 2023-04-01 14:28:52 UTC
Decrease Depth more for positions not in TT. If the position is not in TT, decrease depth by 2 or by 4 if the TT entry for the current position was hit and the stored depth is greater than or equal to the current depth. Many thanks to Vizvezdenec as the main idea was his. Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 70664 W: 18995 L: 18639 D: 33030 Ptnml(0-2): 228, 7712, 19090, 8080, 222 https://tests.stockfishchess.org/tests/view/64258a8bdb43ab2ba6f9b682 Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 85040 W: 23227 L: 22836 D: 38977 Ptnml(0-2): 26, 8115, 25867, 8466, 46 https://tests.stockfishchess.org/tests/view/64262057db43ab2ba6f9d0e7 closes https://github.com/official-stockfish/Stockfish/pull/4482 bench: 4380438
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