You can change score calculation (regular, Vegas Vegas cumulative), disable sounds, select what type of undo you would like and even turn game to left-handed mode. If you think basic Klondike Solitaire is too easy for you, just change difficulty and let the game challenge you! Klondike Strategy Guide for Windows Solitaire Game. After all these years it maintains its status as one of the most difficult and frustrating games to beat. World of Solitaire is primarily the work of one person, me. - Added groupings by 'Skill' and 'Difficulty' to the game chooser - [Pyramid] Fixed a bug that caused the cards to behave oddly after undoing a move. [Klondike Turn Three] When you turn 3 cards over they flip over instantly now August 5 - Added three new variations of Pyramid.