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EP square only when viable #400

Merged
merged 2 commits into from
Jul 25, 2022
Merged

EP square only when viable #400

merged 2 commits into from
Jul 25, 2022

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jhonnold
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Bench: 5427009

Only calculate the EP square when an enemy pawn is in place to capture it. This will help will three move repetitions where the first position is after a double pawn push.

STC

ELO   | 2.56 +- 4.52 (95%)
SPRT  | 8.0+0.08s Threads=1 Hash=8MB
LLR   | 2.96 (-2.94, 2.94) [-5.00, 0.00]
GAMES | N: 10728 W: 2580 L: 2501 D: 5647

@jhonnold jhonnold merged commit beddea2 into main Jul 25, 2022
@jhonnold jhonnold deleted the ep-3-fold branch July 25, 2022 14:09
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