Yin and Yang (Metal) by Doug EngelSolved a few times. Has some small dents, scratches and wear on it but works good. Shipping worldwide (incl. USA) from The Netherlands, costs (incl. tracking):Outside EU: 25€EU: 15€Netherlands: 7€Payment via Direct bank transfer or PayPal. *Buyer pays shipping costs and PayPal fees if not paying with F&F, so please wait for the final invoice before payment.Feel free to message me if you have any questions.

Tai Ji 69 (Yin Yang 69) by Wil StrijbosAwarded Honorable Mention at the IPP35 Design Competition. Made of CNC milled aluminum parts, this is a high quality take apart puzzle sold by Wil Strijbos. Solved a few times and has some wear on it. Works perfectly. Shipping worldwide (incl. USA) from The Netherlands, costs (incl. tracking):Outside EU: 25€EU: 15€Netherlands: 7€Payment via Direct bank transfer or PayPal. *Buyer pays shipping costs and PayPal fees if not paying with F&F, so please...

PenTICdesigned by Andrew Crowellcrafted by Eric Fuller (2019)condition: as newdescription: This is closer to a traditional TIC puzzle, but built from pentomino based geometry. The open frame structure, tightly constrained internal interactions, and unusual piece shapes make PenTIC difficult to assemble, with five contrasting exotic woods turning it into a nice display piece too.product page: https://cubicdissection.com/products/pentic-interlocking-cubeThe item will be shipped from Budapest, Hung...

Up for auction is take apart / put together challenge from Lahav Svorai called OPUS 3.  This puzzle was presented in very limited quantities (less than 30 if my mind serves me right) by Gregory Gelfenbuym aka the PUzzle Wanderer years ago. Good luck to find the secret taking it apart and put it back together. The brain teaser is coming with a stand which needs to be assembled as well as an additional challenge. The item is in great condition.After the auction ends I will pro-actively contact t...

Up for auction is one of Koichi Miura's masterpieces, the DICTIONARY CASE packing puzzle. Your goal is to pack all 5 pieces  into the rectangular case. Sounds easy? Not that easy - promised! The item is in great condition.After the auction ends I will pro-actively contact the buyer and provide shipping options via Deutsche Post / DHL or Hermes. After the preferred way of shipping is clear, I will provide final payment amount.I am shipping worldwide. To provide an idea, shipping within the EU (...

Up for auction is one my leftovers from the IPP Puzzle Exchange 2025 in Tokyo. It is a disentanglement puzzle called KOINOBORI CHALLENGE designed and manufactured by Aaron Wang exclusively for the mentioned annual event. As it was an exchange puzzle, it is not the typical highly difficult brain teaser but manageable for the seasoned puzzler. The item is in new condition.After the auction ends I will pro-actively contact the buyer and provide shipping options via Deutsche Post / DHL or Hermes. A...

Up for auction is an IPP Design Competition entry puzzle called THE HOKEY COKEY LOCK PUZZLE designed and manufactured by the Two Brass Monkeys Ali Morris and Steve Nicholls. Self-speaking the goal it to open the shackle of the brain teaser which has a unique trick to discover for such kind of brain teaser! The item is in great condition.After the auction ends I will pro-actively contact the buyer and provide shipping options via Deutsche Post / DHL or Hermes. After the preferred way of shipping...

Up for auction is an IPP Design Competition puzzle from Tokyo 2025 called CABRIO designed by Dr. Volker Latussek and manufactured by the wood experts from the Czech Republic, the New Pelikan Workshop. Your goal is to pack all pieces in the given box, which has a removable lid. But how is this possible? Looks Easy? It is not and another brilliant episode from the German designer. The item is in great condition.After the auction ends I will pro-actively contact the buyer and provide shipping opti...

Up for auction is an IPP Exchange puzzle from Tokyo 2025 called TWIST MY WIENER designed by Derek Bosch and Zachary Zieper. Your goal is to take the dog apart and put it back together afterwards - an intermediate and fun challenge. The item is in great condition.After the auction ends I will pro-actively contact the buyer and provide shipping options via Deutsche Post / DHL or Hermes. After the preferred way of shipping is clear, I will provide final payment amount.I am shipping worldwide. To p...

Up for auction is an IPP Exchange puzzle from Tokyo 2025 called TWO OUT designed & manufactured by Henry Strout. This is the next wagon (challenge) in this train & wagon-series from Henry and your goal is to fit all pieces in the wagon. The item is in great condition.After the auction ends I will pro-actively contact the buyer and provide shipping options via Deutsche Post / DHL or Hermes. After the preferred way of shipping is clear, I will provide final payment amount.I am shipping worldwide....