Build descending sequences in the tableau. Only a complete King-to-Ace run of the same suit is removed. You can stack any card on a card one rank higher regardless of suit — but mixed-suit stacks can't be moved together, so same-suit building is the key skill. Click the stock to deal one new card to every column (not allowed while any column is empty). Clear all 8 runs to win.
Start with 1 suit to learn, then try 2 suits, then the brutal 4-suit game.