A difficult solitaire requiring careful thought and planning. The player needs to form a strategy. The rules are strict and enforced. There is a Hint system to help the player. A typical hand will take 3 to 10 minutes to solve. Some dealt hands cannot be solved. Statistics keeps track of your best time and minimum number of moves to solve a display. Individuals need to register on an Android device and multiple players can use the same device by logging in.