Four suits is the most difficult level of Spider Solitaire.
Full Screen mode: You can turn on or turn off the Full Screen mode accordingly via the control panel buttons "Full Screen" and "Screen". Special function: you can turn on and turn off the Full Screen mode using any button on the keyboard.
Hint: Spider will hint you the next move.
Undo: Click and Spider will cancel one move.
Restart: Spider will return the current game again.
New Game: Spider will start a new game.