Disentangling the Illusive IPP – Kubiya Games
Jerry's Mechanical Puzzle & Brain Teaser Collection: IPP34 - Edward Hordern Puzzle Exchange
Jerry's Mechanical Puzzle & Brain Teaser Collection: IPP33 Exchange Puzzles
Solving the Mystery of the Secret International Puzzle Party - Atlas Obscura
IPP Burr - Cubic Dissection – Cubicdissection
High Difficulty Puzzles Bitten Biscuits international Puzzle - Etsy
5 IPP Puzzles plus one more Lot 8
Andreas Röver - Puzzles
A few Exchange Puzzles from IPP34 | Neil's Puzzle Building Blog
LOT of 4 IPP Puzzles plus one
Pavel's Puzzle Blog: International Puzzle Party (IPP) Archives
LOT of 4 IPP Puzzles plus one
Nob Yoshigahara Puzzle Design Competition - Wikipedia
ZenPuzzler: Where Do Great Puzzle Designs Come From?
PuzzleMad: The IPP was a great success!
Plus! Puzzle! Burr Puzzle Edi Nagata IPP 30 Exchange Puzzle 🧩 | eBay
ZenPuzzler: Discretely Exchanging Puzzles - IPP Burr
2018 Design Competition Results
Martian Diamond Acrylic Packing Puzzle By Brian Young IPP39 Exchange Puzzle | eBay
5 IPP Puzzles Packing and Poly shapes Lot 2
FantasTIC - IPP Design Competition entry – Wood Wonders
Puzzle Design Competition HOME
IPP Burr puzzle | Brian Young design | Mr Puzzle Australia
interlocking burr puzzle made from 3D printed resin
IPP Burr - Cubic Dissection – Cubicdissection
IPP 29 Puzzle Lot - Revised
