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Chess engine: Stockfish 20052114

on

Stockfish - UCI chess engine, compiled by Stéphane Nicolet
Rating JCER=3282

 TTimestamp: 1590062707
A combo of parameters tweaks

 This patch is a combinaison of two recent parameters tweaks which had failed narrowly (yellow) at long time control:
• improvement in move ordering during search by softening the distinction
between bad captures and good captures during move generation, leading
to improved awareness of Stockfish of potential piece sacrifices (idea
by Rahul Dsilva)
• increase in the weight of pawns in the "initiative" part of the evaluation function. With this change Stockfish should have more incentive to exchange pawns when losing, and to keep pawns when winning.

 STC:
LLR: 2.93 (-2.94,2.94) {-0.50,1.50}
Total: 10704 W: 2178 L: 1974 D: 6552 Elo +6.62
Ptnml(0-2): 168, 1185, 2464, 1345, 190
https://tests.stockfishchess.org/tests/view/5ec5553b377121ac09e1023d

 LTC:
LLR: 2.94 (-2.94,2.94) {0.25,1.75}
Total: 60592 W: 7835 L: 7494 D: 45263 Elo +1.96
Ptnml(0-2): 430, 5514, 18086, 5817, 449
https://tests.stockfishchess.org/tests/view/5ec55ca2377121ac09e10249
Bench: 4519117

Stockfish 20052114 download
mirror


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