The game of Yatzy is a simple dice game. Each player rolls five six-sided dice. They can re-roll some or all of the dice up to three times (including the original roll).
The player then places the roll in a category, such as ones, twos, fives, pair, two pairs etc (see below). If the roll is compatible with the category, the player gets a score for the roll according to the rules. If the roll is not compatible with the category, the player scores zero for the roll.
For example, suppose a player scores 5,6,5,5,2 in the fives category they would score 15 (three fives).
The player scores the sum of all dice, no matter what they read.
If all dice have the same number, the player scores 50 points. Otherwise they score 0.
The player scores the sum of the dice that reads one, two, three, four, five or six, respectively. The score is 0 if there is no dice present with that number.
The player scores the sum of the two matching dice. If there is more than one pair of matching dice, score the higher of the two. If there are no pairs of dice with the same number, score 0.
If there are two pairs of dice with the same number, the player scores the sum of these four dice. Otherwise, score 0.
If there are three dice with the same number, the player scores the sum of these three dice. Otherwise, score 0.
If there are four dice with the same number, the player scores the sum of these four dice. Otherwise, score 0.
When placed on "small straight", if the dice read
1,2,3,4,5,
the player scores 15 (the sum of all the dice). Otherwise, score 0.
When placed on "large straight", if the dice read
2,3,4,5,6,
the player scores 20 (the sum of all the dice). Otherwise, score 0.
If the dice are two of a kind and three of a kind, the player scores the sum of all the dice. Otherwise, score 0.