An updated and more complex version of the classic 3x3 Rubik's Cube, this brainteaser has twists and turns to baffle even experienced puzzlers. Winning Moves Games warns that due to the complex mechanics required to allow movement of the four row Rubik's Cube, care should be taken during play to align the rows fully before attempting to twist. 
― Two of 39 retailers told TDmonthly in October 2009 that Rubik's Cubes are their top seller for tween boys.
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