The object of the game is to identify sets of three cards. Each card is unique in its four features: Number (1, 2, or 3), Symbol (diamond, squiggle, or oval), Shading (solid, striped, or hollow), and Color (red, green, or purple). Cards are laid out 12 at a time. The first person who finds a set calls out, Set, identifying the three cards that make up a set. The trick is to find three cards on which each feature by itself is either the same on all of the cards or different on all of the cards. Great for building pattern recognition skills. Includes 81 cards, plastic carrying case, and instructions in English and Spanish. For 1 or more players. A 1991 Mensa Select Award Winner.