Spider Solitaire Blue has 3 different levels, with level 1 being the easiest. To finish this game, you must stack all cards of the same series in a descending order, i.e. from King to Ace. At the bottom in the middle you will see a button with a bended arrow, this is your helpline to undo a move and you will need it to solve the more difficult levels. The key is to finish entire rows, creating an empty space, from where you can try out several moves.