Binary Burr (2013)

designed by Bill Cutler
crafted by Eric Fuller

• materials: Cherry, Walnut
• condition: perfect, as new
• description: it won the First Prize at IPP23 Puzzle Design Competition. The puzzle is a sophisticated 21-piece "boxed burr" combining a central bar, six ring pieces, and a 14-piece cage of cherry and walnut. It utilizes a binary progression mechanism, requiring 85 moves to free the first piece.

The item will be shipped from Budapest, Hungary. Shipping costs will be calculated after bidding has ended. Multiple items may be combined for shipping upon request. Accepted payment methods are (in order of preference): Wise, PayPal F+F, or direct bank transfer.