Klondike Solitaire Treasures

Klondike, the solitaire everyone means when they say solitaire: fifty-two cards onto four foundations, ace to king, tableau built down in alternating colors, empty columns opened by a king. This version draws one card at a time and will, if you ask it to, deal only hands that can actually be won — which changes the game from a lottery with a skill component into a puzzle with a guaranteed answer. Undo is unlimited, and there is a score, a timer and a move count to beat.