The above PDF includes my testing results for my puzzle cube.  On average my  puzzle cube takes 236 seconds to solve for highschool aged students. With the most occuring solving time of 5 minutes or 300 seconds, my design proofed difficult to solve in the time limit of 5 minutes.  My design's age group would have to be raised from high school aged students to also include college students, due to its difficulty. 

      My design meets all the critera besides age range. My design uses 5 intricate peices using all three layers of the 3x3 cube restriction. My blocks are all wooden 3/4'' blocks. Each peice contains more than 3 cubes. My design follow all the constraints named in the challenge brief.