A-ha! Fifth Chair
Where’s the fifth chair? You build it! A-ha! Brainteasers inspire special a-ha! moments for novice and seasoned problem solvers alike. With the A-ha! Brainteaser The Fifth Chair™\ combine four chair-shaped pieces to form a single large chair."
Includes one puzzle and one hint and solution booklet. Single player. Ages 14 and up. Challenge level: hard\, level three.