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Stockfish 17120417 - new version!

on
Stockfish, chess engine UCI

 Rating JCER = 3395
🔬 Author: Syzygy1  

 Timestamp: 1512406351 

 Use a Direction enum for Square deltas 

 Currently the NORTH/WEST/SOUTH/EAST values are of type Square, but conceptually they are not squares but directions. This patch separates these values into a Direction enum and overloads addition and subtraction to allow adding a Square to a Direction (to get a new Square). 

 I have also slightly trimmed the possible overloadings to improve type safety. For example, it would normally not make sense to add a Color to a Color or a Piece to a Piece, or to multiply or divide them by an integer. It would also normally not make sense to add a Square to a Square. 

 This is a non-functional change.

 ⭐⭐⭐   Stockfish 17120417 - download

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