Assembly PuzzlesDesigner Profiles

Hiroshi Yamamoto Mechanical Puzzles

Puzzle Designers and Craftsmen

Hiroshi Yamamoto is an incredibly popular Japanese puzzle collector and designer of a large number of mechanical puzzles. He is a charter member of the famous NOBrain Corps and is also a part of the Har-e-brain Corps.

Designer Information

If you have information on this puzzle craftsman, or images to support this page please feel free to get in touch.

News of events:

To be confirmed.


You can find a number of Hiroshi Yamamoto’s puzzles at .

Hiroshi Yamamoto Puzzles

Hiroshi-San has produced some great puzzles, of which many are below (Please feel free to update on missing puzzles).

3 Piece Plus One 9 Acrobats Cool Circuits (with Harry L. Nelson)
Copy Device eLeL4 Ex 3**
Floor puzzle Freeze the Coins (with Tadao Kitazawa and Mine Uyematsu) Fifth Avenue
Lock Device* Luna lockout Pento Half*
Slide-in slide Simple Zero Octagon
Stormy Seas T+3 Trap-Z*
UniqueU Watering duty

*TheMetagrobologist most wanted. Do you have a copy to sell/trade? Email or PM us on our Facebook Page.


This page has been created to act as a constantly updated, serious portal and directory to many of the world’s most popular, foremost and prolific mechanical puzzle designers and craftsmen.

If you are a craftsman or puzzle designer and would like to be added to the list, provide a small biography, display some new puzzle designs, news, or add new links or information for our readers please get in touch.

Interested in new mechanical wooden puzzles?

Visit Wood Wonders Online.


Checkout our latest blogposts for news and site updates.

T+3 © Designer: Hiroshi Yamamoto (Baxterweb)

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