Junichi Yananose

Puzzle designer

I got familiar with geometry and wood working to satisfy my intellectual curiosity and, started designing original puzzles when I was a teenager. It became a part of my life-time activity.

I always wanted to make my puzzle something new or different. Since a dodecahedron or an icosahedron shaped puzzles are designed by our predecessors, I needed to challenge a compound of those two polyhedra.

Sophisticated CAD software, efficient wood machineries and a little patience made the task possible.

Reza 12-20
Reza 12-20
26 x 26 x 26 cm
QLD silver ash + Jarrah

A polyhedral shape interlocking puzzle designed and made by Junichi Yananose (Juno) in 2016.

The shape of the puzzle is based on a compound of dodecahedron and icosahedron. Juno has simulated 25 patterns of twisting angle and orientation of the pieces to have a well balanced assembled shape. And then he has tested numbers of combination of the pieces to make the burr puzzle enjoyable, challenging and operable by two hands. 10 types of the pieces are used for both to the dodecahedron and icosahedron.

The puzzle is named after Prof. Reza Sarhangi who made great contributions to math-art community.