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Chess engine: Stockfish 20021009

on


Stockfish - UCI chess engine, compiled by Vizvezdenec

 Timestamp: 1581322742
Modify singular beta for ttPv positions.
This patch lowers singular beta for positions that have been in pv and are not pv nodes. The idea of using ttpv && !PvNode improved scaling with TC and could be useful for other search heuristics.

 LLR: 2.94 (-2.94,2.94) {-0.50,1.50}
Total: 154953 W: 29688 L: 29272 D: 95993 Elo +0.93
Ptnml(0-2): 2616, 17912, 36037, 18210, 2673

LLR: 2.95 (-2.94,2.94) {0.25,1.75}
Total: 70974 W: 9305 L: 8932 D: 52737 Elo +1.83
Ptnml(0-2): 466, 6658, 20920, 6826, 569
Bench: 4932981

 Rating JCER=3393
Stockfish 20021009 - download

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