Official UNO Rules

1. You can avoid a +2 card by stacking another +2 card on top, and the next player has to draw 4 cards

2. If you draw a card from the pile, you can play it on the same turn

3. If the first card of the game is a +4 card, you must return it to the pile, and another card is turned over

4. If you play a Wild card, you cannot choose the color of the previously played card

5. You cannot call out someone for not saying "Uno" after the next player has taken their turn

6. If you have two identical cards with the same color and number, you can play them both on the same turn (except for Wild cards).

7. When a player plays a +2 card and you cannot play a card after drawing the 2 cards, you have to draw another card

8. You can avoid a +2 card by stacking a +4 card on top, and the next player has to draw 6 cards. However, you cannot stack a +2 card on top of a +4 card

9. When a player plays their last card, they receive points from the remaining cards of others.

10. It is illegal to play a +4 card if you have another card that matches the color of the previously played card.

11. You cannot draw a card from the pile if you already have a playable card

12. At the beginning of the game, each player draws a card, and the player with the highest number becomes the dealer.

13. The round ends as soon as the first player played their last card

14. Any player may play a card at any time if they have one that matches the color and number of the card on top of the discard pile.

15. If you have 25 or more cards, you automatically lose the round.