SET

SET is a pattern recognition game where on a 3×4 grid of cards player must find 3 cards the meet the requirement to be a set. This games is great for all ages, has no limit for player count and is really easy to pick up yet challenging to master.

Quoted for Wikipedia: The deck consists of 81 unique cards that vary in four features across three possibilities for each kind of feature: number of shapes (one, two, or three), shape (diamond, squiggle, oval), shading (solid, striped, or open), and color (red, green, or purple). Each possible combination of features (e.g. a card with three striped green diamonds) appears as a card precisely once in the deck.

What makes a set?

When 3 cards have feature that are all the same and/or are all different. See photo for examples :)