What does the Uno card with no number mean?
If a card from your UNO deck is lost or damaged you may use the Blank Card as a replacement. Example: If you find that your deck is missing one of the yellow 7's you would simply replace it by taking the yellow Blank Card, marking a "7" on it and adding it back into the deck.
What happens when you don’t have a card to play in UNO?
"If you don't have a card that matches the one on the DISCARD pile, you must take a card from the DRAW pile. If the card you picked up can be played, you are free to put it down in the same turn. Otherwise, play moves on to the next person in turn."
What does the blank color card in Uno mean?
The blank card in Uno is used to erase one of your opponent's cards- in other words, to yank it from their hand and throw it somewhere where it will not be retrieved until the game is over. At least, that's how I heard it's meant to be executed. It's a new card in the deck, so what it means is sort of up for debate.
What do you say when you have no cards left in UNO?
When you have one card left, you must yell "UNO" (meaning one). Failure to do this results in you having to pick two cards from the DRAW pile. That is, of course if you get caught by the other players. Once a player has no cards left, the hand is over.