The best solitaire in Japan schools. Simple rules and an incredibly exciting process. 100 000 unique puzzles and the absentee competition between thousands of people.
Objective is to remove all the color cubes from the dashboard. Cubes have the 4 different colors and 6 different faces. Simply combine 2 cubes of the same color and face to clear them from the dashboard.
You have 4 jokers faces - jokers can remove any cube of same color.
Enjoy.