Mijkel1969 103

"Where's the Dog?", IPP23 (2003) exchange puzzle from Torito

Great communication. Puzzle received as shown. 11/22/2025 22:00:24

A Scrap-Book of Elementary Mathematics, 80+ years old

Wonderful to purchase from. Hope to do business again! 11/22/2025 19:04:40

Chicago L, IPP23 (2003) exchange puzzle designed by Donald Knuth

Nice to find an older IPP puzzle for a great price. Shipping couldn't have been faster! Five Stars! 11/22/2025 16:41:10

Gathering for Gardner Exchange Book Set, 2012 — AS NEW

Great seller. Love the books. Thank you. 08/29/2025 10:50:23

Who Dares Wins aka Haleslock 6

Puzzle is exactly as promised and the seller was a gem to work with. Thank you for sharing part of your collection. The hand written note was a nice touch! 08/27/2025 09:07:44

60+ Year Old Advertising "T" Puzzles — TWO UNOPENED COPIES!

Quick and smooth transaction! A++ 08/22/2025 07:28:54

Well-Game, designed by the late Dr. Markus Götz, seems impossible

Very nice and helpful seller, puzzle in excellent condition, fast shipping, thank you, all the best Felix 05/22/2025 14:34:57

Loopy Box by Jean Claude Constantin, IPP35 (Ottawa, 2015) Exchange Puzzle

Smooth transaction. 05/09/2025 22:22:53

VESA's Four, IPP23 (2003) exchange puzzle, Vesa Timonen / Matti Linkola

Easy purchase - fast shipping - puzzle in excellent shape 03/12/2025 22:53:00

Most Diabolical Baseball Puzzle EVER, IPP32 Exchange Puzzle

Highly recommended seller. Puzzle exactly as described and great transaction 03/01/2025 19:43:50