In UNO, the last card played in a round determines how the round ends and who scores points. The round ends when a player plays their last card and yells UNO loudly. If the last card played is a draw card or a wild draw card, the next player must draw the number of cards indicated. According to the official UNO rules from Mattel, if the last card played is a draw card or a wild draw card, then the next player must draw all the required cards.
When a player has no cards left, the round is done, and points are added up. If the last card played in a round is a Draw One, Draw Two, or Wild Draw Four card, the next player must draw the 1, 2, or 4 cards, respectively. The Draw pile will be reshuffled, and the game will continue if no player reaches 500 points before the draw pile is full.
When a player has only one card left in their hand, they must say “UNO” before the play moves to the next player. If you don’t yell “UNO” and get caught before the next player takes their turn, you must draw two cards as a penalty. So, the game continues until the first player reaches 500 points to win.
