What exactly is Klondike Solitaire? Solitaire "Klondike" is one of the most popular Solitaire variants in the world. This is a one-player game that uses a standard 52-card deck. What is the best way to play this game? The cards are dealt in seven columns known as scoreboards. There is one card in the first column, two in the second, and so on until there are seven cards in the seventh column....