Fix the incremental evaluation update with castling

TimJentzsch / stonefish_engine

An amateur chess engine written in Rust.

https://lichess.org/@/StonefishEngine

GNU General Public License v3.0

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Fix the incremental evaluation update with castling #6

Closed TimJentzsch closed 2 years ago

TimJentzsch commented 2 years ago

When the player is castling, the incremental evaluation update per move didn't work. It didn't consider the rooks moving and didn't consider the new king position for queen-side castling.