The object is to build up ascending sequences (Ace up to King) irrespective of suit. These sequences have to be built in the spaces at the top of the game display.
There are also eight working stacks. As each card is dealt, it may be placed on any of the eight stacks.
Once all the cards have been dealt, then cards may be moved from the working stacks to the foundation piles (providing the are next in sequence for the foundation). Cards cannot be placed on the foundation pile until all cards have been dealt out.
Cards cannot be moved between the working stacks, so take care in the way you lay the cards out.