Thanks, it's tricky to get the selection of diagonals working accurately like that. If you inspect the HTML, you can see each tile has an invisible 45 degree ro

Thanks, it's tricky to get the selection of diagonals working accurately like that. If you inspect the HTML, you can see each tile has an invisible 45 degree rotated clone on top of it that's used to detect when a tile is selected instead of the boundaries of the original tile.