QUBED ("cubed") is brain teaser puzzle. You begin with an empty puzzle board of 11 hexagon shaped spaces, then one by one you arrange the 11 Qubes so that they all fit on the board, but EVERY side must connect to another Qube's side of the same color – therein lies the challenge. All six edges of every Qube must connect to another edge of the same color. The puzzle also comes with additional challenge cards to give you a specific goal when putting the puzzle together.
And many more!