!! latest version !!Windows x64 for Haswell CPUsWindows x64 for modern computers + AVX2Windows x64 for modern computersWindows x64 + SSSE3Windows x64Windows 32Linux x64 for Haswell CPUsLinux x64 for modern computers + AVX2Linux x64 for modern computersLinux x64 + SSSE3Linux x64Author: Stéphane Nicolet
Date: Fri Feb 26 19:45:29 2021 +0100
Timestamp: 1614365129
Introduce DistanceFromPV
We introduce a metric for each internal node in search, called DistanceFromPV.
This distance indicated how far the current node is from the principal variation.
We then use this distance to search the nodes which are close to the PV a little
deeper (up to 4 plies deeper than the PV): this improves the quality of the search
at these nodes and bring better updates for the PV during search.
STC:
LLR: 2.96 (-2.94,2.94) {-0.25,1.25}
Total: 54936 W: 5047 L: 4850 D: 45039
Elo +1.25Ptnml(0-2): 183, 3907, 19075, 4136, 167
https://tests.stockfishchess.org/tests/view/6037b88e7f517a561bc4a392 LTC:
LLR: 2.95 (-2.94,2.94) {0.25,1.25}
Total: 49608 W: 1880 L: 1703 D: 46025
Elo +1.24Ptnml(0-2): 22, 1514, 21555, 1691, 22
https://tests.stockfishchess.org/tests/view/6038271b7f517a561bc4a3cb Closes
https://github.com/official-stockfish/Stockfish/pull/3369 Bench: 5037279
see source
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