The Grandfather Burr Puzzle - 18 Piece Burr Puzzle mothers_day Premium leather construction for durability

Premium leather construction for durability

making it a reliable alternative to plastic

Unbuttoning provides flexibility to use items separately

Innovative design eliminates wires

Feels like a tiny frog basking on a lily pad

The Grandfather Burr Puzzle - 18 Piece Burr Puzzle mothers_day Premium leather construction for durabilityDesigned 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