You can toggle difficulty levels via Random or non Random option and turn on/off rules (allow/disallow Queens on Kings and wrapping Aces) so that you can play based on what you like. Easy interface, colorful graphics, and various sound-effects makes playing the game fun and challenging. • Multiple card sets (we have include some very nice and unique sets in this app). • 20 board layouts! All unlocked and no In App Purchase needed to play. • Option to create more random games or have the game try to crate solvable games. • Option to toggle rules to allow Queens on Kings and wrapping Aces. • Game keeps track of high scores and winning percentage. • Elegant user interface and animations.