During the game, you should try not to suffer a penalty if you do not want to lose soon. For example, when you have two cards, you should click the '1' button to call 'Uno' before getting rid of one card. If you forget to call 'Uno', you are forced to draw two more cards.
This way, you minimize the point penalty associated with holding onto high-value cards when the game ends
This way, you minimize the point penalty associated with holding onto high-value cards when the game ends
