Players face off with each other searching for sets of 3 cards that either all match or all differ in each of four different properties: shape, color, count, and fill. Players use right click on their mouse to buzz in, declaring that they've found a set. Then they click on the 3 cards they've found. If it was a valid set the cards are removed, the player is awarded a point and more cards are dealt. If all players indicate that they cannot find any sets then new cards are dealt.