Duchess Tri-Peaks is a classic solitaire variation for MAC OS by Free-Online-World.com. The duchess is playing patience in the boudoir. The object of the game is to move all of the cards from the tableau to the foundation. The foundation may be built up or down regardless of suit. For example, if the Foundation is showing a 5, then a 4 or 6 may be played onto it. When you're unable to make any more moves, turn over the top of the stock and place it face-up on top of the foundation pile, then once again make any moves available on the tableau. There are 20 levels and picturesque graphics that make this game even more addictive. Absolutely free!