Calliro is a two-player abstract strategy game with tile-placement and pattern-building. Players should look for the best pattern in their situations by selecting a best color chip. They try to gain the most scores point by building two-score patterns and one-score patterns. Gameplay: Before play the game each player chooses one of three colors, and the third color is a common color. On your turn you simply place a chip on the game board or flip a chip placed on the game board. After the pattern created, one of the chips in the pattern must be replaced with the Sign Chip and gain score point. The game end when all score points are over or the player chips are all placed on the game board.