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by Anotheroneagain 882 days ago
>Then you have a pretty bad worst case as well

It would be really rare though, virtually all positions would be 192bits for the position as such.

I don't think you need en passant for each pawn, there can only be one, so you only need to mark the column, with 3 bits, and there always must be a column where it can't happen, that you can use where there isn't any. Or, maybe it's more, IDK.