Spider solitaire

The game uses two packs of cards. Build runs of thirteen cards of one suit in descending order, from king down to ace, in the ten columns. A completed run is removed from the table, and the game is won when all eight runs are complete. A card can be placed on any card one rank higher, whatever its suit, but only cards that form a run of a single suit can be moved together. Tap the deck to deal one new card onto every column, which is allowed only when no column is empty. The one-suit game is the easiest and the four-suit game the hardest.