Award the non-knocker for an undercut. Should you have been the knocker, and it turns out your opponent has less deadwood factors than you, this is called an undercut. Ultimately, after building any melds or lay offs, the player need to discard a single card on the discard pile, https://messiahfpzju.blog4youth.com/30403180/card-rummy-game-no-further-a-mystery