Quadro is a game developed from the old Dutch game called 'Butter, Cheese and Eggs' (three-in-a-row). It is played on four four by four squares. Players attempt to get four in a row to get points. Four in a row can be score on a single board, but also using different boards (By occupying the first square of a row on one board, and the remaining squares of the corresponding rows on the another board). Bonus points can be scored by using only a single board for your row, or for using all four boards. - BoardGameGeek