When analyzing this recent game, an option given by the engine was for the white king to castle queenside. This seems odd as the rook on A1 is being attacked. I realize that black's bishop on D4 is not cutting through the path between white's king and rook.
castling queenside
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normack77
Feb 26, 2021
0
#1
Feb 26, 2021
0
#2
If you're asking whether or not it's legal, it is. The rook is irrelevant; as long as the king doesn't pass through or land on an attacked square it's fine.