- In Hanabi, there is only one copy of each 5. So, we need to stop players from discarding them.
- We agree that 5's must be saved with a number 5 clue. This is called a 5 Save.
- In the example below:
- Alice clues Bob number 5, which touches a single 5 on slot 5.
- Before this clue, Bob did not have any clued cards in his hand.
- Since the clue was focused on his chop, Bob knows that this must be a 5 Save on the 5. It can be any 5 in the game.