156-piece Challenging Sand Dunes Jigsaw Puzzle in Tray. Billions of Combinations but Only ONE Solution. Highest Level of Difficulty for a Puzzle.

Description

Optical teaser featuring identically shaped puzzle pieces. Challenge comparable to 750-1000 piece puzzle. Virtually infinite possibilities. Hexagonal pieces fit six different ways in over 150 spaces. Billions of combinations, but only one solution. Specially designed framework holds puzzle in its own tray, so limited work space required. VIP fits easily on lap or tabletop. Ideal travel companion.