Spider Four Suits is a classic 2 deck game that is among the most popular of solitaire games. It is a difficult game of skill.
Build from Kings to Aces in suit on the 10 main stacks and move whole sets of thirteen cards to the stacks with circle (object stacks) at the top. Try to get all the cards on the object stacks.
On the 10 main stacks, you can build downward regardless of suits. All cards that are in suit and are numbered downwards can be dragged at once. These cards can only be dragged to another main stack or if it is a full set of thirteen (King to Ace) cards to an object stack. Any card may be placed on top of an empty main stack. If there are no moves left you can click on the deck on the top left to add an open card on top of each of the main stacks.