IPP Martian Diamond | George Sicherman | Mr Puzzle
8 x IPP 39 exchange puzzles
PuzzleMad: The IPP was a great success!
2016 Design Competition Results
Puzzle Design Competition Archives | JL Puzzles
Puzzle Auction - IPP Puzzles
IPP Martian Diamond | George Sicherman | Mr Puzzle
Quintet in F (Exchange Puzzle IPP 31)
Pavel's Puzzle Blog: International Puzzle Party (IPP) Archives
5 IPP Puzzles Packing and Poly shapes Lot 2
The Pentagon Tiles. IPP 32 Packing Puzzle by Marcel Gillen Design by René Dawir | eBay
CSAIL Annual Meeting 2012 Puzzle (Erik Demaine and Martin Demaine)
LOT of 4 IPP Puzzles plus one
Oak Wood High Difficulty Puzzles Bitten Biscuits - Etsy
FantasTIC - IPP Design Competition entry – Wood Wonders
Plus! Puzzle! Burr Puzzle Edi Nagata IPP 30 Exchange Puzzle 🧩 | eBay
High Difficulty Puzzles Bitten Biscuits international Puzzle - Etsy
IPP38 Puzzle Exchange in San Diego, California, USA - 11th Aug 2018
Brian's Damn Puzzle Blog: 2012 New York Puzzle Party (Part 6)
Andreas Röver - Puzzles
Jerry's Mechanical Puzzle & Brain Teaser Collection: IPP33 Exchange Puzzles
Very difficult 3 piece packing puzzle | IPP | Mr Puzzle
5 IPP Puzzles plus one more Lot 8
