The game uses 1 pack of cards. The stock can be redealt any number of times. Clicking on the stock will transfer 3 cards to the waste stack.
Waste (1 stack). Cards can be be moved from here to tableaux or foundations.
Foundation (4 stacks). Build in suit and up, e.g. a 10 goes on a 9, Aces are allowed on Kings.
Tableau (4 stacks). Build in alternate colors and down, e.g. a 9 goes on a 10, Kings are allowed on Aces. Any card may be placed in an empty tableau. Completed sequences of cards may be moved together. Spaces are automatically filled with the top card from the reserve.
Reserve (1 stack). Stores multiple cards of any type. You cannot move a card to a reserve stack.
Wikipedia