This is a card game that comes with all installations of Windows 95 and 98. Now, you'd think that a simple game of solitaire would hold one's attention for a few rounds, but then leave one wanting more. This is quite far from the truth. FreeCell is one of the few solitaire card games where all of the cards are face up at the start. You can win most of the games you play.
Some games are easy to win.
Most offer interesting challenges. Some games are very difficult. A chessmaster said once that chess is like life. Though FreeCell is a puzzle-solving game, not a battle between two people, the same observation might be made about it. So the next time you berate yourself for spending too much time at the game, remember that you have received some good training.