Comment by bongodongobob

Just for funsies:

Say a white rook is on h7 and a white pawn is on g7.

Rook gets taken, then the pawn moves to g8 and promotes to a rook.

The rook kind of moved diagonally.

"Ah, when the two pieces are in this position, if you land on my rook, I have the option to remove my pawn from the board and then move my rook diagonally in front of where my pawn used to be."

Functionally, kind of the same? Idk.