This is a slight variation on the standard Uno card game, in which you try to be the first to play all the cards in your hand by matching the last discard by color, number, or card type (Wild, Draw 2, Reverse, Skip, etc.).
This version features different dogs for each number card (i.e., all the 1's have one specific dog, all the 2's have another dog, etc.), and each dog is a particular breed as recognized by the American Kennel Club.
This is packaged in one of 4 sets: Terrier Group, Sporting Group, Non-Sporting Group, and Herding Group. Each group showcases dogs from that category of the AKC.
WHAT MAKES IT DIFFERENT FROM TRADITIONAL UNO: The Best in Show card. When you play this card you name a card color (red, yellow, blue, or green). Each player draws a card from the draw deck until he draws a card of the named color. Once all players have done this the player to your left resumes by playing a card of the named color.