Peter Grabarchuk

• Modern Classic Puzzles
• Big, Big, Big Book of Brainteasers
• The simple book of not-so-simple puzzles
• 303 Three-Minute Puzzles
• Puzzle Box Volume 2
• Puzzle Box Volume 3
• Puzzle Box, Volume 1
• Strimko 4x4
• Strimko 5x5
• Strimko 6x6
• Strimko 7x7
• Strimko Book 1