The Rules of Yahtzee Yahtzee can be played in solitary or by a group. If you have not scored in the Yahtzee category, you will not receive a bonus. enter in the YAHTZEE box is worth 50 points. For each additional YAHTZEE you roll, you earn a bonus (see. YAHTZEE BONUS, below)!. Chance: Score the total. If you roll a YAHTZEE and you've already scored 50 points in your YAHTZEE category, you get a bonus of points. Put a / in the appropriate row, and at the.