I have a problem. R1C1 is optional, and there's a choice between R3C5,7.
But it's more than that. The blank squares here all have the same parity; that is, on a chessboard, they'd all be the same color. This is a natural consequence of the anti-knight restriction, which cannot apply between squares of the same parity. And I find that annoying.
I have a problem. R1C1 is optional, and there's a choice between R3C5,7.
ReplyDeleteBut it's more than that. The blank squares here all have the same parity; that is, on a chessboard, they'd all be the same color. This is a natural consequence of the anti-knight restriction, which cannot apply between squares of the same parity. And I find that annoying.