While having a go at writing my own chess engine I came across a ridiculouslybeautiful bit twiddling trick���

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So, I���m on my second weekend of trying to write a chess engine from scratch,having been thoroughly nerd-sniped by Lichess and theirgenerous hosting of the Chess Programming Wiki.

I���ve come across the Most Ridiculously Cool bit twiddling trick that I���m fairlysure all the engines use.

Certainly the Not Quite A Tutorial As Such But Very Close To It that I amworking through h...