Double Heart & Arrow (IPP34) by Yoshiyuki KotaniAssemble two hearts together in the center of the arrow.From IPP 34 held in London, England in 2014.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Equilateral Triangle Puzzle ET-321-a1 (IPP34) by Mineyuki Uyematsu (MINE)Using all eleven pieces: 1. Make one equilateral triangle.  2. Make two equilateral triangles of the same size.  3. Make three equilateral triangles of the same size.From IPP 34 held in London, England in 2014.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you h...

Tan Tricks II by Kadon4 tritans and 30 pentatans fill an 8½" square tray. In this case the grid lies squarely within the tray, and the hypotenuse in any piece will plot diagonally. It is no mean feat to solve it so that the tritans form a connected group.Shipping by USPS, payment via Zelle, check or money order.  If you have any questions, please ask them before bidding. :-)   See all active listings here: metagrobology : the study of puzzles

Satellite (Scorpius) CT49 by Stewart Coffin / ArjeuMade in the 1980's by Arjeu.  Designed by Stewart Coffin.Arjeu was a French company that produced over 90 wooden mechanical puzzles, many of which are interlocking puzzles.  Arjeu's line of puzzles are known for their intricate designs and challenging nature.  Many of the designs are from Stewart Coffin, Phillipe Dubois, Pierlot, and others.  Appealing at first glance, these puzzles are also known for being difficult and require dexterity a...

Hex-A-Hexa-Plexigon (IPP23) by Michael Tanoff & C. Dudley LangfordSeven piece hexagonal corner matching puzzle.  Mind your beeswax!22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Bent Board Burr #6 (IPP23) by Frans de Vreugd / Puzzlecraft (Steve Strickland)Six pieces, 22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Naughty Pieces (IPP23) by Irina Novichkova / Vladimir KrasnoukhovCreative eight piece packing puzzle from Irina.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Skewered Cubes (IPP23) by Bob DarlingBob made these 8 wooden cubes and 12 rods for you to assemble a 2 x 2 x 2 cube.  Perhaps not so easy as first appears!22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Convex Concave (IPP23) by Scott Kim / Amina Allen & Colorfields This is magnetic overlapping flat assembly puzzle that just may blow your mind!  Inspired by the famous M.C. Escher, the puzzles provides a high quality coated metal magnetic plate on which to place colorful 3D polyominoes to create impossible puzzle shapes!  Comes with detailed instructions and various suggested challenges, but it's even more fun to freeform on this as a personal puzzling palette!22 years old, this puzzle is ...

International Puzzle Pussy (IPP) (IPP23) by Anatoli KalininFrom the Russian mind of Anatoli, we might only assume something is lost in translation?22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Wooden Loop (IPP23) by Vladimir KrasnoukhovVery nicely made wooden cube disentanglement puzzles, it is harder to put it back than to remove the string.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Pound Puppy (IPP23) by Henry StroutHenry nailed this one!  A beautiful puppy burr with rotating/flopping ears and a winning smile.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Four D (IPP23) by Oskar van Deventer / George MillerFour layer route finding puzzle designed by Oskar to stretch your brain into the fourth dimension...22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Hermaphroditic Blocks (IPP23) by George Miller8 blocks, each with male and female parts, must be conjoined into a cube with no "protrusions"...22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Dovetail Burr Box (IPP23) by Keith WinegarHand crafted from Padauk, Keith created this 8+ step puzzle box with the primary objective requiring burr like pieces and movements to open.  Release the quarter from the window shown -- using the keyhole opening to activate the dovetail.  The stand pieces are Padauk and Maple, and are part of the puzzling fun!22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See ...

The Seal Puzzle (IPP23) by Naoyuki (Osho) Iwase / Rikishi (Lixy) Yamada6 cute wooden seals, one dark wood tray.  Fit them all on the rocky beach.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Octo-Diamond (IPP23) by Bob Finn / Walt HoppeNicely crafted tray puzzle, fit the octagonal unit shaped polyominoes into the tray.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Cast Spiral (IPP23) by Ken Walker / HanayamaAn original Hanayama production used by Harry Nelson as his exchange puzzle back in the day.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check or money order.  If you have any questions, please ask them before bidding. :-)

Esponja de Binimelis (Binimelis Sponge) (IPP23) by M. I. Binimelis Bassa & A.Violant & Holz / Juan Binimelis Ramírez20 cubes, each with divots and pegs, must be assembled into a 3 x 3 x 3 cube with each face empty in the center and with no pegs protruding from the exterior faces.  Fascinating puzzle represents the first iteration of the Menger sponge.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See a...

The Chicago Cubes (IPP23) by Joe BeckerDid you know Joe made puzzles before the infamous Free Me coin release series?  This is a stunning example of Joe's creativity, handmade with solid lucite cubes, where the object is to make a 2 x 2 x 2 cube.22 years old, this puzzle is from IPP 23 held in Chicago, USA in 2003.Puzzles are made to live in people's hands.  Pick one up today!  See all active listings here: metagrobology : the study of puzzlesShipping by USPS, payment via Zelle, Wise, check ...