
Many players mistakenly believe a second Yahtzee can always be scored in the Yahtzee box, but the official rules require using it as a Joker once that box is filled.
According to the Hasbro Gaming Official Rulebook, a Yahtzee (five of a kind) can be used as a Joker if the Yahtzee box is already filled and the appropriate Upper Section box is also filled.
Yahtzee Official Rules [edition not specified]
These rules correspond to the UK edition of Yahtzee.
Official Rule Breakdown
A Yahtzee is defined as any five of a kind, which normally scores 50 points in the Yahtzee box. However, a Yahtzee may be used as a Joker only when two specific conditions are met: 1. The YAHTZEE box has been previously filled with 50 or zero, and 2. The appropriate box in the Upper Section has been previously filled. For example, if a player rolls five 4's and the 'Fours' box is already filled, the player may score the total of all 5 dice (20 points) in any open box in the Low…
Example Play Situation
Alice has already filled her Yahtzee box and her 'Sixes' box. On her turn, she rolls five 6's. Since she cannot use the Yahtzee box again, she uses the Joker rule to score 30 points in her 'Small Straight' box instead.

Common Misconceptions
- Thinking you can score 50 points in the Yahtzee box twice
- Assuming you can use a Joker if the Upper Section box is still open
- Believing a second Yahtzee automatically grants a 100-point bonus chip
Quick Reference
| You Can | You Cannot |
|---|---|
| Use the total of all 5 dice in a Lower Section box if using a Joker | Score 50 points in the Yahtzee box if it is already filled |
| Score 25, 30, or 40 points in specific Lower Section boxes using the Joker rule | Use the Joker rule if the corresponding Upper Section box is still open |
| Enter a zero in the Upper Section if all Lower Section boxes are filled |
Frequently Asked Questions
- What is the official rule for a second Yahtzee in Yahtzee?
- It must be used as a Joker if the Yahtzee box is already filled and the matching Upper Section box is filled.
- Can I score 50 points if my Yahtzee box is already full?
- No, you must use the Joker rules to score in the Lower Section or enter a zero.
- What happens if I roll five 4's but my Fours box is already filled?
- You can score the total (20) in 3 of a kind, 4 of a kind, or Chance, or use specific Joker values.
- Do I get a bonus chip if I use a Yahtzee as a Joker?
- Yes, if the first Yahtzee was scored in the Yahtzee box, the second (even as a Joker) earns a chip.






