Watermelon Chess is a fun Chinese board game also called xi gua qi. The board can be used for several games, including the bear games played in ancient Rome and a go variant called sz'kwa. Easy to play and relatively quick; it's a good game for children or as a conversational game over a few beers at the pub.
Two plates to print: the board and the pieces, which need to be printed twice: one for each player colour.