FreeCell

FreeCell is a solitaire card game played with the standard 52-card deck. It is fundamentally different from most solitaire games because very few deals are unsolvable, and because every card is dealt face up from the beginning of the game. It was originally created as a computer game by Paul Alfille. Microsoft has included an implementation of FreeCell in every release of the Windows operating system since 1995, which has greatly contributed to the very wide popularity of the game.