Double Klondike

Double Solitaire is a two-player variant of the popular patience or solitaire card game known as Klondike. It is most commonly referred to as Double Solitaire, but is also sometimes known as Double Klondike. (This name can also refer to the single-player solitaire game Gargantua.) Versions for more than two players — such as Triple Solitaire or Quadruple Solitaire — are also possible.

As the name suggests, Double Solitaire is played by two players, each using a separate standard 52-card deck (Jokers removed). For optimal play, the cards in each deck should be distinguishable — either by using different back designs or by subtle differences in font or color on the card faces.