Naoyuki Iwase

9 Little Birds
Circle in Circle
Cube 333 No. 14
Cube 333 No. 3
Flying Tetra 2
Kyoto Puzzle
Lock D
Lock U
New Tulip Puzzle
One Line
Pack the Puzzle
Pyramid in a Cage
Take 10 Square
Take10 - Circle
Teamwork
Wooden Trick Key