I used shortcodes to display the Waffle piece image, as drawdiagram.php is meant for diagrams, not for displaying individual pieces. I put this page in the same group as the Waffle Chess preset, so that the preset would show up in the Play menu. For some reason, this is at /rules/wafflechess, but the preset is at /play/waffle-chess. I'll have to look into why it is using a hyphen for one and not the other.
I used shortcodes to display the Waffle piece image, as drawdiagram.php is meant for diagrams, not for displaying individual pieces. I put this page in the same group as the Waffle Chess preset, so that the preset would show up in the Play menu. For some reason, this is at /rules/wafflechess, but the preset is at /play/waffle-chess. I'll have to look into why it is using a hyphen for one and not the other.