The Grandfather Burr Puzzle - 18 Piece Burr Puzzle mothers_day photo-ready

photo-ready

and water-resistant

Complete the look for a real superhero feel

Innovative design eliminates wires

making it a true dreamland for the little ones

The Grandfather Burr Puzzle - 18 Piece Burr Puzzle mothers_day photo-readyDesigned by W. L. Van der Poel, a Dutch computer scientist. One of the most challenging interlocking puzzles in the collection. Composed of 18 pieces with unique notches. Internal gaps of empty space make interlocks nonintuitive. Requires the correct sequence to release the first piece. Reassembling all pieces is significantly more complex. Demands patience and determination from serious puzzlers. Doubles as an attractive display piece for shelves or