Dev Builds » 20200904-1658

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 06:28:35 584595 4014 182 1993 1839 -168.91 ± 4.46 123 1573 303 8 0 -425.53 ± 19.62
ncm-dbt-02 06:28:54 585161 4000 174 1986 1840 -169.71 ± 4.53 126 1572 290 12 0 -427.85 ± 20.06
ncm-dbt-03 06:26:56 586101 4000 162 1958 1880 -167.97 ± 4.35 107 1591 293 9 0 -429.66 ± 19.96
ncm-dbt-04 06:27:48 567619 4012 195 1962 1855 -164.25 ± 4.68 124 1536 330 15 1 -401.43 ± 18.8
ncm-dbt-05 06:29:20 582522 3974 137 1972 1865 -173.56 ± 4.57 139 1568 269 11 0 -440.92 ± 20.84
20000 850 9871 9279 -168.86 ± 2.02 619 7840 1485 55 1 -424.63 ± 8.84

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
459801 ncm-dbt-04 565548 12 1 4 7 -88.71 ± 118.59 0 4 1 1 0 -190.85 ± 619.3
459800 ncm-dbt-01 586350 14 0 8 6 -225.47 ± 69.17 1 6 0 0 0 -1199.83 ± 201.74
459799 ncm-dbt-05 583950 474 13 238 223 -179.31 ± 13.04 17 193 25 2 0 -474.38 ± 70.98
459798 ncm-dbt-02 586012 500 18 251 231 -175.43 ± 11.53 14 205 31 0 0 -471.91 ± 63.24
459797 ncm-dbt-03 584117 500 22 248 230 -169.27 ± 12.08 14 198 38 0 0 -433.93 ± 56.58
459796 ncm-dbt-01 584076 500 18 248 234 -172.78 ± 12.27 15 201 33 1 0 -449.35 ± 61.23
459795 ncm-dbt-04 565312 500 18 244 238 -169.27 ± 11.32 8 213 26 3 0 -466.04 ± 69.04
459794 ncm-dbt-05 579537 500 16 250 234 -176.32 ± 12.94 19 197 33 1 0 -449.35 ± 61.23
459793 ncm-dbt-03 586689 500 22 245 233 -166.66 ± 12.28 12 201 35 2 0 -429.05 ± 59.28
459792 ncm-dbt-02 586054 500 22 254 224 -174.55 ± 13.31 20 193 36 1 0 -433.94 ± 58.41
459791 ncm-dbt-04 568156 500 27 251 222 -167.53 ± 13.99 19 189 39 3 0 -401.92 ± 55.87
459790 ncm-dbt-01 585379 500 22 250 228 -171.02 ± 12.42 15 199 35 1 0 -438.95 ± 59.31
459789 ncm-dbt-05 583531 500 18 239 243 -164.93 ± 12.17 11 201 36 2 0 -424.28 ± 58.4
459788 ncm-dbt-02 584285 500 17 250 233 -175.43 ± 13.47 21 192 36 1 0 -433.94 ± 58.41
459787 ncm-dbt-03 591512 500 25 246 229 -164.93 ± 12.63 13 197 38 2 0 -415.05 ± 56.74
459786 ncm-dbt-04 567522 500 27 242 231 -159.78 ± 12.3 11 194 44 1 0 -397.72 ± 52.42
459785 ncm-dbt-01 585379 500 32 239 229 -153.02 ± 13.92 13 186 46 5 0 -359.68 ± 51.07
459784 ncm-dbt-05 583405 500 14 245 241 -173.66 ± 12.92 19 193 38 0 0 -433.93 ± 56.58
459783 ncm-dbt-04 571190 500 30 236 234 -152.18 ± 13.56 15 177 57 1 0 -349.43 ± 45.6
459782 ncm-dbt-02 583950 500 25 254 221 -171.9 ± 13.93 20 192 35 3 0 -419.61 ± 59.12
459781 ncm-dbt-03 586943 500 23 240 237 -161.49 ± 11.95 11 195 44 0 0 -406.2 ± 52.26
459780 ncm-dbt-01 585464 500 30 251 219 -164.93 ± 13.08 17 187 46 0 0 -397.71 ± 51.02
459779 ncm-dbt-02 586604 500 18 240 242 -165.79 ± 12.11 13 196 41 0 0 -419.6 ± 54.3
459778 ncm-dbt-05 583112 500 19 243 238 -167.53 ± 12.68 13 201 33 3 0 -429.05 ± 60.97
459777 ncm-dbt-04 567482 500 25 242 233 -161.49 ± 14.12 19 181 48 2 0 -374.11 ± 50.1
459776 ncm-dbt-03 583992 500 15 249 236 -176.32 ± 11.44 12 212 24 2 0 -490.71 ± 72.58
459775 ncm-dbt-01 583992 500 20 249 231 -171.9 ± 11.6 13 203 34 0 0 -454.75 ± 60.11
459774 ncm-dbt-05 582945 500 21 262 217 -182.6 ± 14.28 27 188 34 1 0 -444.09 ± 60.25
459773 ncm-dbt-02 586689 500 32 249 219 -161.49 ± 13.29 13 195 38 4 0 -397.72 ± 56.46
459772 ncm-dbt-04 568752 500 13 260 227 -188.08 ± 13.37 26 195 29 0 0 -484.24 ± 65.6
459771 ncm-dbt-03 586774 500 13 240 247 -170.14 ± 11.24 11 205 34 0 0 -454.75 ± 60.11
459770 ncm-dbt-01 583028 500 26 251 223 -168.4 ± 13.94 21 184 44 1 0 -397.72 ± 52.42
459769 ncm-dbt-03 585674 500 18 251 231 -175.43 ± 13.69 22 190 37 1 0 -429.05 ± 57.55
459768 ncm-dbt-05 584076 500 18 254 228 -178.11 ± 13.03 20 197 32 1 0 -454.76 ± 62.27
459767 ncm-dbt-04 568872 500 25 238 237 -158.08 ± 13.06 12 192 43 3 0 -385.59 ± 53.09
459766 ncm-dbt-01 582778 500 14 249 237 -177.21 ± 11.35 14 207 29 0 0 -484.24 ± 65.6
459765 ncm-dbt-02 582611 500 19 240 241 -164.93 ± 12.17 12 198 39 1 0 -419.61 ± 55.94
459764 ncm-dbt-03 583112 500 24 239 237 -159.78 ± 12.75 12 193 43 2 0 -393.6 ± 53.12
459763 ncm-dbt-04 565744 500 29 245 226 -160.64 ± 13.55 14 191 43 1 1 -393.6 ± 53.12
459762 ncm-dbt-02 585084 500 23 248 229 -168.4 ± 12.38 13 201 34 2 0 -433.94 ± 60.2
459761 ncm-dbt-01 584916 500 20 248 232 -171.02 ± 11.93 14 200 36 0 0 -444.08 ± 58.27
459760 ncm-dbt-05 579620 500 18 241 241 -166.66 ± 12.28 13 198 38 1 0 -424.28 ± 56.73

Commit

Commit ID d539da19d2b13d70a81ab863f54046add0bc3b38
Author SFisGOD
Date 2020-09-04 16:58:34 UTC
Use classical eval more often If there is a moderate imbalance, use classical eval with small probability (1/16), as derived from the node counter. STC: LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 32320 W: 3562 L: 3377 D: 25381 Ptnml(0-2): 144, 2609, 10478, 2776, 153 https://tests.stockfishchess.org/tests/view/5f520615ba100690c5cc5f80 LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 21032 W: 1116 L: 974 D: 18942 Ptnml(0-2): 20, 837, 8664, 971, 24 https://tests.stockfishchess.org/tests/view/5f522eaaba100690c5cc5f8c closes https://github.com/official-stockfish/Stockfish/pull/3107 Bench: 4109324
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