Spider Solitaire uses two decks and ten columns. Build complete king-to-ace sequences in a single suit to clear them from the board.
Two 52-card decks. Ten tableau columns — the first four with six cards each, the rest with five. Only the top card of each is face-up.
Build down by rank within a suit. Deal a new row of ten cards when stuck. Complete a king-to-ace sequence of one suit and it is removed.
One suit (easiest), two suits, or four suits (hardest). Four-suit is the classic challenge.
Remove all eight suits to win. The goal is to clear every column.
Two standard 52-card decks, for 104 cards total.
One-suit Spider — all cards are the same suit, so any descending sequence works.