Peter Grabarchuk Puzzle Designer
Taking part in puzzle events and other activities        
  Activities at Puzzles.COM
Contents Development
Puzzle Contribution
  Collaboration with ThinkFun Inc.
Treasure Quest - challenges' testing
Hot Spot - challenges' testing
  Activities at Age of Puzzles project
Puzzle Contribution
  Activities connected with World Puzzle Championships
  Activities connected with International Puzzle Parties
Peter Puzzle
Find at this website puzzle projects by Peter Grabarchuk, including puzzle products, books and publications, web puzzles, and other puzzle activities.