Brainstorm F Edition
This version of the puzzle was originally devised in Japan by Nob Yoshigahara, Japan’s most celebrated inventor, solver and collector of puzzles.
The F edition puzzle comprises six specially designed elements, but don’t be fooled by its simplicity. Always using all six elements, draw on your imagination and creativity to arrange them in nearly 100 different ways − including all 26 letters of the alphabet.
Dimensions: (D) 91mm x (W) 154mm x (H) 21mm
Weight: 126 grams
Age: 7 yrs to adult
Difficultly: 2 out of 4 (4=hardest)