Professor's Cube the Eastsheen 5×5×5 and the V-Cube 5 are designed with different mechanisms in an attempt to remedy the fragility of the original design. There are 98 pieces on the exterior of the cube: 8 corners, 36 edges, and 54 centers (48 movable, 6 fixed). Any permutation of the corners is possible, including odd permutations, giving 8! possible arrangements. Seven of the corners can be independently rotated, and the orientation of the eighth depends on the other seven, giving 3 (or 2,187) combinations. There are 54 centers. Six of these (the center square of each face) are fixed in position. The
Bedlam cube Bedlam cube during the second series. They offered £100,000 for a 15% share of equity in Bedlam Puzzles. Danny Bamping (the entrepreneur behind Bedlam cube) finally chose a bank loan instead of their investment, as seen in the relevant "Where Are They Now" episode of "Dragons' Den". According to "Guinness World Records", the official world record for assembling the Bedlam Cube is 11.03 seconds by Danny Bamping on 9 November 2006. The blindfolded record is 27.21 seconds by Aleksandr Iljasov on 25 February 2008. Bedlam cube The Bedlam cube is a solid dissection puzzle invented by British puzzle expert Bruce