In the first phase, each player's turn starts by the player drawing the top card from the face-down stock. If it is an Ace, it must immediately be discarded and a new card drawn from the stock to replenish the hand, and the player's turn continues. Whether or not an ace was drawn, the player must either discard one of the six cards in his hand face-up, on top of the central discard pile, or place one of his six cards into his tableau. Once the third Ace is drawn, the second phase commences with the player who drew the third Ace. This player discards the Ace and does not replenish his hand.
Play continues in the same way as in the first phase, except that no cards are drawn from the stock.
At each turn, you must either discard a card or place a card in your tableau. This continues until players have no cards remaining. Ties are broken by the largest smallest card in that suit. My personal favorite scoring system is as follows. For each suit won, a player adds 4 points.