ThinkFun 36 Cube
How many towers can you place? ThinkFun challenges you to solve our 36 Cube. Start by removing the towers following two simple rules: there must be only one of each colored tower in every row and column, and the towers must fit into the base so each tower is at the same height. Sound simple? Think again. There a 6 levels of success, so keep trying it to improve upon your previous effort.