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Chess engine: Stockfish 20041815

on

Stockfish - UCI chess engine, compiled by Vizvezdenec
Rating JCER=3286

 Timestamp: 1587217001
Apply multicut pruning more often
This patch increases number of nodes where we produce multicut cutoffs.
The idea is that if our ttMove failed to produce a singular extension but ttValue is greater than beta we can afford to do one more reduced search near beta excluding ttMove to see if it will produce a fail high - and if it does so produce muticut by analogy to existing logic.

 passed STC
https://tests.stockfishchess.org/tests/view/5e9a162b5b664cdba0ce6e28
LLR: 2.94 (-2.94,2.94) {-0.50,1.50}
Total: 58238 W: 11192 L: 10917 D: 36129 Elo +1.64
Ptnml(0-2): 1007, 6704, 13442, 6939, 1027

 passed LTC
https://tests.stockfishchess.org/tests/view/5e9a1e845b664cdba0ce7411
LLR: 2.94 (-2.94,2.94) {0.25,1.75}
Total: 137852 W: 17460 L: 16899 D: 103493 Elo +1.41
Ptnml(0-2): 916, 12610, 41383, 13031, 986
bench 4881443

Stockfish 20041815 download


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