[citation needed] Seated facing one another, each player sets up a typical Klondike layout, with one difference: the two players share a communal foundation area in the space between the two layouts.
The communal foundation will have eight potential stacks, two for each pair of suits from the two decks.
Each person plays their own layout as per Klondike rules, but with three-turn and unlimited-pass options applying to both players.
A number of informal playing conditions are usually agreed for competitive play: Russian Bank, also called Crapette, is a two player game that is a more complex derivative of Double Solitaire.
Versions of Russian Bank have been produced commercially by Mattel and Hasbro under the names Skip-Bo and Spite and Malice.