Poisson Solitaire - Version 1.0 Play a unique version of solitaire. Poisson Solitaire is a version of the one-player card game named for the Poisson family. The cards are arranged into a seven-by-four–card grid. The object is to remove all cards from this pattern. This is the only known computer implementation of this form of solitaire.It is a Strategy game like concentration and klindike. Very addicting.