Dev Builds » 20200908-2056

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 06:29:35 583057 3996 162 1953 1881 -167.62 ± 4.48 122 1553 317 6 0 -418.85 ± 19.16
ncm-dbt-02 06:30:06 586220 4014 159 1989 1866 -170.98 ± 4.43 127 1582 292 6 0 -434.6 ± 19.98
ncm-dbt-03 06:30:17 586802 4014 204 1954 1856 -162.34 ± 4.6 110 1549 329 19 0 -398.91 ± 18.82
ncm-dbt-04 06:29:57 566856 3998 204 1966 1828 -164.38 ± 4.69 128 1520 337 14 0 -399.19 ± 18.6
ncm-dbt-05 06:30:44 582488 3978 161 1951 1866 -168.39 ± 4.4 111 1578 290 10 0 -429.23 ± 20.06
20000 890 9813 9297 -166.73 ± 2.02 598 7782 1565 55 0 -415.61 ± 8.61

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
448155 ncm-dbt-03 586816 14 0 8 6 -225.47 ± 69.17 1 6 0 0 0 -1199.83 ± 201.74
448154 ncm-dbt-02 586350 14 0 6 8 -159.07 ± 56.3 0 6 1 0 0 -445.23 ± 480.27
448153 ncm-dbt-05 577684 478 21 234 223 -166.49 ± 10.84 7 199 33 0 0 -451.93 ± 61.07
448152 ncm-dbt-04 568554 498 27 250 221 -167.44 ± 13.62 20 183 46 0 0 -396.94 ± 51.01
448151 ncm-dbt-01 583112 496 23 236 237 -159.54 ± 13.06 12 192 41 3 0 -392.06 ± 54.43
448150 ncm-dbt-03 587113 500 22 244 234 -165.79 ± 13.46 14 199 32 5 0 -415.05 ± 61.22
448149 ncm-dbt-02 584243 500 22 247 231 -168.4 ± 13.29 18 190 41 1 0 -410.58 ± 54.45
448148 ncm-dbt-05 582652 500 16 249 235 -175.43 ± 13.01 18 199 31 2 0 -449.35 ± 63.25
448147 ncm-dbt-04 568872 500 33 235 232 -148.85 ± 12.7 10 183 56 1 0 -352.8 ± 46.04
448146 ncm-dbt-01 582903 500 19 254 227 -177.21 ± 12.13 17 201 32 0 0 -466.03 ± 62.14
448145 ncm-dbt-03 587834 500 23 252 225 -171.9 ± 13.5 20 190 39 1 0 -419.61 ± 55.94
448144 ncm-dbt-02 586308 500 22 248 230 -169.27 ± 12.55 16 194 40 0 0 -424.27 ± 55.03
448143 ncm-dbt-05 582360 500 29 248 223 -163.21 ± 12.75 13 195 40 2 0 -406.2 ± 55.21
448142 ncm-dbt-01 583489 500 17 239 244 -165.79 ± 12.11 13 196 41 0 0 -419.6 ± 54.3
448141 ncm-dbt-04 567997 500 22 248 230 -169.27 ± 12.55 15 197 37 1 0 -429.05 ± 57.55
448140 ncm-dbt-03 587919 500 34 243 223 -154.7 ± 13.65 13 187 46 4 0 -366.78 ± 51.18
448139 ncm-dbt-02 586393 500 21 246 233 -168.4 ± 12.14 13 200 36 1 0 -433.94 ± 58.41
448138 ncm-dbt-01 585674 500 19 264 217 -186.24 ± 14.45 30 185 35 0 0 -449.34 ± 59.17
448137 ncm-dbt-05 584369 500 17 243 240 -169.27 ± 12.32 13 202 33 2 0 -438.95 ± 61.17
448136 ncm-dbt-04 566020 500 21 253 226 -174.55 ± 13.97 22 190 36 2 0 -424.28 ± 58.4
448135 ncm-dbt-02 585211 500 22 253 225 -173.66 ± 12.92 17 199 32 2 0 -444.09 ± 62.18
448134 ncm-dbt-03 586562 500 25 239 236 -158.93 ± 12.35 9 199 39 3 0 -401.92 ± 55.87
448133 ncm-dbt-01 582945 500 23 240 237 -161.49 ± 11.95 10 198 41 1 0 -410.58 ± 54.45
448132 ncm-dbt-05 581985 500 21 243 236 -165.79 ± 13.88 17 192 37 4 0 -401.92 ± 57.23
448131 ncm-dbt-04 567126 500 21 244 235 -166.66 ± 12.04 13 197 40 0 0 -424.27 ± 55.03
448130 ncm-dbt-03 586646 500 27 241 232 -158.93 ± 12.35 11 193 45 1 0 -393.6 ± 51.79
448129 ncm-dbt-02 588174 500 20 241 239 -164.93 ± 12.41 12 199 37 2 0 -419.61 ± 57.55
448128 ncm-dbt-03 585759 500 24 244 232 -164.07 ± 13.35 15 193 39 3 0 -401.92 ± 55.87
448127 ncm-dbt-01 581277 500 20 241 239 -164.93 ± 11.44 10 201 39 0 0 -429.05 ± 55.79
448126 ncm-dbt-04 569629 500 28 248 224 -164.07 ± 14.38 19 186 41 4 0 -385.59 ± 54.3
448125 ncm-dbt-02 585548 500 19 246 235 -170.14 ± 11.5 12 203 35 0 0 -449.34 ± 59.17
448124 ncm-dbt-05 586012 500 23 241 236 -162.35 ± 13.03 16 186 48 0 0 -389.55 ± 49.86
448123 ncm-dbt-01 583740 500 24 245 231 -164.93 ± 13.72 19 184 46 1 0 -389.56 ± 51.18
448122 ncm-dbt-03 585928 500 24 241 235 -161.49 ± 12.41 11 197 40 2 0 -406.2 ± 55.21
448121 ncm-dbt-02 587197 500 14 247 239 -175.43 ± 12.04 16 201 33 0 0 -460.31 ± 61.1
448120 ncm-dbt-04 560518 500 26 241 233 -159.78 ± 12.75 11 196 40 3 0 -397.72 ± 55.14
448119 ncm-dbt-05 581735 500 22 250 228 -171.02 ± 12.18 15 198 37 0 0 -438.94 ± 57.41
448118 ncm-dbt-01 581319 500 17 234 249 -161.49 ± 12.18 11 196 42 1 0 -406.2 ± 53.75
448117 ncm-dbt-04 566138 500 26 247 227 -164.93 ± 13.93 18 188 41 3 0 -393.6 ± 54.43
448116 ncm-dbt-02 586562 500 19 255 226 -178.11 ± 13.5 23 190 37 0 0 -438.94 ± 57.41
448115 ncm-dbt-03 586646 500 25 242 233 -161.49 ± 13.08 16 185 49 0 0 -385.59 ± 49.31
448114 ncm-dbt-05 583112 500 12 243 245 -173.66 ± 11.17 12 207 31 0 0 -471.91 ± 63.24

Commit

Commit ID 0405f3540366cc16245d51531881c55d3726c8b5
Author SFisGOD
Date 2020-09-08 20:56:08 UTC
Double probability of using classical eval This patch doubles the moderate imbalance threshold and probability of using classical eval. So now if imbalance is greater than PawnValueMg / 4 then there is a 1/8 chance of using classical eval. STC: LLR: 2.93 (-2.94,2.94) {-0.25,1.25} Total: 10984 W: 1303 L: 1140 D: 8541 Ptnml(0-2): 58, 867, 3489, 1010, 68 https://tests.stockfishchess.org/tests/view/5f554c9f97da2d5437d3813e LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 43064 W: 2476 L: 2276 D: 38312 Ptnml(0-2): 37, 1985, 17308, 2145, 57 https://tests.stockfishchess.org/tests/view/5f55690a00a0aa2ca79f0a43 closes https://github.com/official-stockfish/Stockfish/pull/3114 Bench: 4161067
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