This dual purpose puzzle was composed in the 16th century by Albert Durer. It originated from the Indian discovery that by using all the number from 1 to 16 they could be arranged in a square so that all columns, rows, and diagonals add up to 34.
Puzzle 1: Remove the 16 piece from the board. Scramble the numbers and rearrange them from 1 to 15 in ascending order from top left to bottom right.
Puzzle 2: Try to arrange the 16 squires in a way that the sum of all the rows, all the columns, the 2 diagonals, the numbers in the corners and the 4 numbers in middle will be 34.
The most challenging of our interlocking puzzles. It is comprised of 51 different bars, each carefully cut so that the pieces can interlock and form a solid core. Once assembled, no single piece of this puzzle can simply come apart from the rest. Like many puzzles of this kind, the key lies in turning just one piece.
Once disassembled return all 51 pieces into a crystal.