Metal Fifteen Pocket Puzzle __BOOK this devilish strategy game has

this devilish strategy game has been stumping great minds since the 17th century

Measures 14" x 7" x 3" with a USB plug included

and a host of unusual word and picture puzzles offer young readers hours of challenging fun

Designed by Ed Nagata for Hanayama of Japan

Metal Fifteen Pocket Puzzle __BOOK this devilish strategy game hasThe 15 puzzle is one of the most popular puzzles ever produced, this brainteaser has stumped millions since the 1870s. The tiles can be scrambled in seemingly endless combinations which makes it quite challenging to get all fifteen numbers back in the right order. This sophisticated steel and enamel reproduction puzzle is packaged in a red leatherette case.