Coloured Yatzy is a variant on the classic yatzy game. Instead of dice the players throw pyramid shaped prisms with 4 different coloured corners. From the box: A Twist on the classic game. A Fast playing game of fun and skill. Throw the colourful Yatzy Prisms up to 3 times to score on your turn. Can you match a pair, a full-house, a small or high straight or even 4 of a kind? Matching 8 of a kind scores the highest value Yatzy.