Two suits is the version most Spider players settle into. The double deck holds spades and hearts, four copies of each, so you now have to sort colours as well as ranks. You can place a card on any card one rank higher, but only runs of the same suit move together.
Aim for same-suit runs. A red 7 on a red 8 can be dragged later as one run. A red 7 on a black 8 is legal, but from then on you can only move the 7 by itself.
Before each deal, look at every column. A deal drops a card on top of all ten, which can bury a run you were about to finish.
Use an empty column to pull a mixed stack apart, moving the top same-suit group to a clean spot.
Complete a King-to-Ace run in a single suit to remove it. Eight runs win the game.
Tips and strategy
Build spades and hearts in parallel instead of chasing one suit, so neither gets buried.
When you have a choice, prefer a same-suit move over a mixed-suit move, even if the other one uncovers a card a little sooner.
Stuck? Use Hint to spot a move you overlooked, or undo a few steps and try another route.
Want a gentler game? Try 1 Suit. Want the full challenge? Go to 4 Suits.
Spider Solitaire 2 Suits FAQ
How hard is Spider Solitaire with 2 suits?
It is clearly harder than 1 suit, but with careful play and the unlimited undo most winnable deals can be solved. Expect to lose a few while you learn to keep the suits together.
Which two suits are used?
One black suit and one red suit, spades and hearts, with four complete sets of each. The two colours make the table easy to read at a glance.