Use your brains, stay sharp, and overcome difficulties! It is a card solitaire game of challenge type. There are more than 1,000 levels in the game, as well as many unique card game layouts. The gameplay is similar to the traditional Solitaire, but on the basis of the traditional Solitaire, a new undo function and some props are added to enhance the fun of the game and help you better pass the challenge. Become a card master.