This unique construction toy comes in six different colors, all of different difficulty levels. The cube is sold as a two-dimensional flat foam rectangle. It's easy to pack because pieces fit together jigsaw-style. The challenge is to remove the six pieces and then reconnect them to form a seamless cube. In addition, each Happy Cube comes with instructions on how to make larger cube formations by interlinking various pieces of the different colored cubes. Although each cube has only a few small pieces, it can be quite a brainteaser. This European product is available through U.S. distributor, Kyp Henn.
— "The Happy Cube has been around since '92 and still is going strong!" Kyp Henn told TDmonthly. "Math teachers love it and so do 99 year olds. I get calls daily from people who are trying to find them."

This unique construction toy comes in six different colors, all of different difficulty levels. The cube is sold as a two-dimensional flat foam rectangle. It's easy to pack because pieces fit together jigsaw-style. The challenge is to remove the six pieces and then reconnect them to form a seamless cube. In addition, each Happy Cube comes with instructions on how to make larger cube formations by interlinking various pieces of the different colored cubes. Although each cube has only a few small pieces, it can be quite a brainteaser. This European product is available through U.S. distributor, Kyp Henn.
— "The Happy Cube has been around since '92 and still is going strong!" Kyp Henn told TDmonthly. "Math teachers love it and so do 99 year olds. I get calls daily from people who are trying to find them."

This unique construction toy comes in six different colors, all of different difficulty levels. The cube is sold as a two-dimensional flat foam rectangle. It's easy to pack because pieces fit together jigsaw-style. The challenge is to remove the six pieces and then reconnect them to form a seamless cube. In addition, each Happy Cube comes with instructions on how to make larger cube formations by interlinking various pieces of the different colored cubes. Although each cube has only a few small pieces, it can be quite a brainteaser. This European product is available through U.S. distributor, Kyp Henn.
— "The Happy Cube has been around since '92 and still is going strong!" Kyp Henn told TDmonthly. "Math teachers love it and so do 99 year olds. I get calls daily from people who are trying to find them."