Mechanical Puzzles
Rick Eason

This web page provides information on (and solutions for) some of my mechanical puzzle designs. Please note that these puzzles are all copyrighted and may not be reproduced without permission.

• Tricky Dick - Introduced at International Puzzle Party 19 in London, August 1999 (Now including the "Return of Tricky Dick"!)

• Double-Hole Pin Cube - Exchange puzzle for International Puzzle Party 20 in Los Angeles, California, August 2000.

• The "Twenty" Cube - Exchange puzzle for International Puzzle Party 21 in Tokyo, Japan, August 2001.

• The Keyhole Puzzle - Exchange puzzle for International Puzzle Party 22 in Antwerp, Belgium, August 2002.

• Nine L-ements - Exchange puzzle for International Puzzle Party 23 in Chicago, Illinois, August 2003
  (also note related Eight L-ements puzzle).

• Myopic Doves - Exchange puzzle for International Puzzle Party 24 in Tokyo, Japan, July/August 2004.

• Seven L-ements - Exchange puzzle for International Puzzle Party 25 in Helsinki, Finland, July 2005.

• Keyhole Cube - Exchange puzzle for International Puzzle Party 26 in Boston, Massachusetts, July 2006.

Questions/comments? My email address is puzzles1@mechanicalpuzzles.org .