Two Burrs in a Corner - Logan Kleinwaks by Eric Fuller

Here’s a description from Cubicdissection:

“Two Burrs in a Corner is an extraordinarily difficult puzzle. To start, The burr pieces will pack into the corner only one way. But that's just the beginning. When you remove the twelve pieces, there are 28,540 ways to construct a single burr. And only ONE way to make two burrs. That's right...there is a unique combination of pieces that will allow you to construct two burrs, which seems insanely improbable to me. On top of that, both burrs are high level (5 and 4 respectively)”

Shipping cost to be determined at close of auction.