2 Decks. Hard (20%). Mostly Skill.
To move all the cards to the .
|•||5 piles (1 in center, 4 others diagonally around it in the center square) - build , from King to Ace as necessary. Each pile may contain any number of cards at the end of the game.|
|•||6 piles (top, bottom, left, and right outside the square) - build , from King to Ace as necessary. Top card only is available for play on the or another pile.|
|•|| (top left, face down) - turn over 1 card at a time to the by clicking. No .|
|•|| (next to ) - the top card is available for play on the or .|
Dutch Solitaire has a similar layout to Windmill.