Can you use a wild card against a wild card draw four stating different color in uno?

Answer 1

UNO is a game with a lot of different house rules, but the actual UNO rules state that when a Wild Draw 4 card is played, the next player loses their turn and draws four cards from the top of the draw pile. If the subsequent player, not the one who had to draw four cards but the one after them, wishes to change the color they may play a Wild or Wild Draw 4 card on top of the Wild Draw 4 card at the top of the stack. However, the rules also state that if you are going to play a Wild Draw 4 you must not have the proper color card available to play. Therefore, if you have a card that matches the color that was called by the player who discarded that first Wild Draw 4, you must play that card instead. If you ignore that card in your hand and play your Wild Draw 4 anyway, another player may challenge you. During a challenge you must show your cards to the challenger to prove that you are not holding a card of the active color. If you are found to be holding the required colored card, you must draw four cards. If you didn’t have the necessary color, the player who challenged you draws four cards plus two additional cards as a penalty. There are no challenges when you play just a plain Wild card.