❓ Can you make a Ziro with an Action card ❓

❌ No. A Ziro can only be achieved with the sum of your 5 cards in hand.
👉 Action cards have no numerical value: to succeed in Ziro, you must only use Number cards.

❓ Can you change the sign of a number that has already been changed ❓

✅ Yes. A new Action card can change the sign of a number that was already changed.
👉 Example: If an Action sets all 9s to +, two turns later another player can play an Action that changes the rule to all 9s being –.

❓ If I draw a card that gives me Ziro but discard the Action card “Total Exchange”, can I declare Ziro ❓

❌ No. A Ziro can only be declared at the end of your turn.
👉 Since the Action card activates when discarded, you must first apply the exchange. Only afterwards, with your final hand of 5 cards, can you possibly declare Ziro.

❓ And with the Action card “Play Again” ❓

✅ Yes. In this case, your turn ends and a new turn immediately begins.
👉 You can therefore declare Ziro before starting your new turn.

❓ When the Action card “Total Exchange” is activated, who has to pass one of their cards to the player on their left first ❓

✅ The exchange is done simultaneously, once each player has chosen a card to give.
👉 For the face-up version, count to 3 and all players reveal the card they want to exchange at the same time.

❓ Can you discard the card you just drew ❓

❌ No, you must discard one of your other cards.

❓ We are many players and want to shorten the game. What should we do ❓

✅ You can agree to play with only 2 Ziros to win instead of 3.
👉 This helps shorten the game length when there are many players.

❓ My child has just learned to calculate, can they play Ziro ❓

✅ Yes! For younger players, you can play with only 4 cards in hand instead of 5 to make calculations easier.
👉 You can also download the Numerical Rules in PDF as support for your children.