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Yahtzee is a dice game. The object of the game is to score the most points by rolling five dice to make certain combinations. The dice can be rolled up to three times in a turn to try to make one of the thirteen possible scoring combinations. A game of Yahtzee consists of thirteen rounds during which the player chooses which scoring combination is to be used in that round. Once a combination has been used in the game, it cannot be used again.

P-Yahtzee is strong!

I have been working on this program for about half a year. I developed a few versions of this computer program. Finally I managed to solve the Yahtzee game from statistical point of view. This knowledge was built into the professional version of P-Yahtzee. While the free version of P-Yahtzee uses a simple algorithm and some pre-calculated empirical values, the professional version of the program uses a huge database with the best combinations of the current five dice and the remaining free available boxes. The database stores not only the best combination of the dice in the current situation to be saved/fixed for the next roll, but also the probabilistic value of the current game stage.

Would you like to learn more about the outcome of the game? Read this part. You may want to know more about the secrets of this game. Go through my tutorial pages. Would you like to know your chances to obtain a real high score in Yahtzee? Check out this!

How can you play in this game against the computer?

With P-Yahtzee you can play against your computer! In each round you start with the same 5 random dice. You must save/select those dice which remain fix and unchanged during next roll. The computer selects its fix dice too. By pressing the “Roll” button The computer generates the required random dice. These random dice are commonly used by you and computer: for example if you left three dice unfixed/unselected and the computer left only two, 3 new dice will be generated randomly. From these 3 dice the first two will replace the computer’s unselected dice and three will replace your unselected dice. So you play with almost the same random dice. Of course, if your selected dice differ from those selected by the computer, you will play in the end with different dice. Luck still plays a very important role !

Progam written by Ferenc Pittner @ All rights reserved 2009