Spider Solitaire is a very popular game among the intellectual community. A lower value card can be placed on any of the players in the game. Clicking on a common deck gives you an additional card in each direction of the values already open. it's therefore illogical to rush to "fill" the playing area with new functions, until all currently relevant problems in the active green board area have been solved. An empty box will be a haven for any card, but it should not be filled too soon, as it's more practical to drag and drop an already created structure of elements of the same card, completing it.