Your mission is to remove all the 8 decks from the game by building sequences from King to Aces. Once you have made a sequence, it's removed from the game. Groups of cards in the correct order can be moved as 1 unit only if they have are from the same Suite. You can only move a card or a sequence on a card if that is 1 higher in sequence. Click on the deck to deal a new set of cards.
If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).