Two Brass Monkeys Hyperboloid Burr Puzzle

The Hyperboloid Burr puzzle from Two Brass Monkeys is a 6/7 piece puzzle with different solutions for each.

Made from seven identical brass hyperboloid pieces.

Originally designed by Oskar van Deventer and made in a wooden version. Initially a six piece puzzle, it was discovered while working on the original a seven piece solution also existed. With permission Two Brass Monkeys have recreated it in brass.

The six piece version assembles well but if picked up by a single piece will fall apart. The seven piece solution completes with a satisfying click and holds together well.

These were precision CNC milled in the UK. The tolerances for this puzzle were critical, a 0.03mm out and the seven piece solution does not assemble.

A really nice looking puzzle this comes disassembled and does not include the solution.

We aim to ship all orders within 24 hours (Mon-Fri) and you can choose from a range of options during checkout.

Delivery within the UK should take 24-48 hours from dispatch (excluding weekends).

International orders may be subject to import charges. For more information and international shipping details please see here.

Returns

If for any reason you change your mind you can return your items for a full refund within 30 days as long as they are in the same condition they were received.