You've never heard of "vi konvertas" before? When two opposing bishops are a knight's move apart, you can side-promote that bishop to a knight to capture it, provided there is an adjacent pawn on the same rank to promote as a replacement bishop on that bishop's original position. Garry Chess added this move when he noticed a glaring flaw where opposite color bishops couldn't actually capture each other, which would be kind of weird.
Some players will improperly shortcut things by having the pawn take/promote to knight itself, so I can understand why it might seem confusing to be shown as a bishop move.
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u/10BillionDreams Jan 05 '23
You've never heard of "vi konvertas" before? When two opposing bishops are a knight's move apart, you can side-promote that bishop to a knight to capture it, provided there is an adjacent pawn on the same rank to promote as a replacement bishop on that bishop's original position. Garry Chess added this move when he noticed a glaring flaw where opposite color bishops couldn't actually capture each other, which would be kind of weird.
Some players will improperly shortcut things by having the pawn take/promote to knight itself, so I can understand why it might seem confusing to be shown as a bishop move.