Download Yambo Extra
Yambo Extra might not ring you too many bells but you should know that the game is a variant of the original Yahtzee game and the objective is still the same: using five different dices you will have five chances to throw the best combinations. If you find a good combinations you can keep the dices and then re-roll the others.
If you do not know how to play the game you will find instructions in the game and they are perfectly written for any beginner to learn his way into the game. You can also save your score for the leaderboard.