Anti King
Anti Knight adds rule that cells with king move in chess from each-other must be unique. Those cells cannot contain same digits.
In the image above cells with digit 1 are not valid because they are chess-king move away from each-other.
Anti Knight adds rule that cells with king move in chess from each-other must be unique. Those cells cannot contain same digits.
In the image above cells with digit 1 are not valid because they are chess-king move away from each-other.