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36.56% linked
Updated Sep 07, 2026
Values for auctions have been converted to USD using conversion rates from the actual date of the auction.
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an auction to a puzzle.
Too Hard by Stewart Coffin and Eric Fuller
Jul 20
2026
$148.42
1 bids
the 8 Triangles Puzzle. IPP 16 Luxembourg exchange from Richard Hess
Mar 19
2026
$13.43
1 bids
Exceedingly Rare Hardcover: IPP22 Antwerp, Belgium (2002) Official Souvenir Book
Mar 16
2026
$377.00
10 bids
Dovetail Bar 1 & 2 by Richard Williams
Jan 05
2026
$76.15
1 bids
It's a Hardly - Rocky Chiaro
Sep 18
2025
$595.00
31 bids
Small Box 8 (Hard to find!)
Aug 18
2025
$131.00
17 bids
Hardcore
Jul 22
2025
$7.00
4 bids
Hidden Cube Pack (Bernhard Schweitzer)
Mar 08
2025
$18.00
5 bids
US Cube #2 Hard - Karin & Jurg von Kanel, IPP26
Aug 31
2024
$51.00
4 bids
Karakuri Banana Puzzle Box CO-14-3 (HARD TO FIND) UNOPENED AND UNPLAYED!
May 19
2024
$865.00
12 bids
Karakuri Book CH-16 (HARD TO FIND) UNOPENED AND UNPLAYED!
Apr 24
2024
$888.00
20 bids
"Window Lock" by Richard Hensel
Aug 13
2023
$252.56
5 bids
Trefoil by Richard Thiessen, IPP17 2007
Dec 04
2022
$40.00
1 bids
Das Wunder (Bernhard Schweitzer)
Jul 24
2022
$159.60
6 bids
Too Hard - Stewart Coffin
Nov 25
2021
$70.00
1 bids
Stickman Dwemer Construct Puzzle Box - Hard to Find!
Apr 09
2021
$2,752.00
27 bids
Hard-Boiled Coin
Feb 13
2021
$152.00
20 bids
Easy Eight / Hard Eight
Nov 28
2020
$17.00
7 bids
Sliding Tetris (Hardcore version)
Jun 21
2020
$110.00
9 bids
Hard to Find Space Age Sputnik Rocket Puzzle
Mar 17
2020
$28.00
3 bids
Puzzle Splines by Mike Toulouzas made by Bernhard Schweitzer
Feb 19
2020
$150.00
1 bids
IPP17 Puzzle: Modest Hexominoes by Richard Hess
Nov 14
2019
$82.00
23 bids
Hard Hearted Hannah
Oct 06
2019
$39.00
bids
Meanders Box (hard)
Dec 06
2018
$230.00
bids
Superstrings - Richard Gain
Jun 13
2017
$22.00
5 bids
Tri-Hard (NY-28)
Mar 01
2017
$713.41
1 bids
It's A Hardly (Rocky Chiaro)
Oct 16
2015
$129.00
1 bids
Hard-Boiled Coin
Oct 13
2015
$32.00
3 bids
Tucker's Teaser cube, by Richard Tucker
Feb 08
2015
$8.00
1 bids
Wood puzzle lock - Richard Hensel
Jun 10
2013
$132.00
19 bids
MAZE CUBES by Larry Evans Hard to Find
Feb 10
2009
$5.00
1 bids
CONTOURA Hardwood Puzzle Sculpture Scarce!
Jun 16
2008
$45.00
8 bids
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