New Melting Block

DESIGNER: John Rausch
MATERIAL: Maple/Ash Box, Purpleheart, Mahogany, Zebrawood, Walnut, Maple, Morado, Granadillo, and Goncalo Alves Pieces
RELEASE DATE: 6.29.2020
EDITION: 78 Copies Released
SIZE: 4.25" x 3" x 2"

New Melting Block by John Rausch is an improved version of Tom Obeirne's original Melting Block puzzle. This paradoxical 3-D packing puzzle has two unique assemblies, one using seven pieces and the other using all eight. There are two possible solutions for each assembly.

The seven-piece solution seems to fill the box entirely, with little room to spare. The leftover block seems far too large to fit in the box...yet somehow, impossibly, the eighth piece does fit when the second solution is discovered.

NMB is the result of an exhaustive mathematical analysis. Of all possible piece subsets and assemblies, over 33 million solutions were reduced to two possibilities. New Melting Block is far more difficult than the original Melting Block and a wonderful addition to any collection.

78 copies were made for this release, each signed and dated. This puzzle is shipped disassembled.

This item is sold out and no longer available. Our Marketplace is the best source for discontinued work. We occasionally revisit discontinued designs at our sole discretion and do not accept requests or one-off commissions.

To ensure the proper continued operation and fit of your puzzles, please check out our product care guide. We recommend an occasional polishing with Renaissance Wax to keep wood puzzles in top condition.

Customer Reviews

Based on 1 review
Matthew T.

I have done the red stone version which is also really fun and quite a challenge. I wouldn’t say this version is any more difficult just slightly different solution. However due to Eric’s awesome skills with a saw, so many times you think you’re at the end, but you’re not, It seems like that last piece should fit but it won’t, by a gnats whisker it’s just too big. I still have yet to find the second solution. Part of me wished it came with a lid to store the last piece when it arrived. But it looks so nice stored stood on edge showing all the colours I’m glad Eric opted to not include one. Overall a great puzzle and as always superbly crafted.

Combine Orders

We can hold your orders and combine with future orders, reducing shipping costs.

International Shipping

We deliver our products worldwide via DHL and USPS. See our shipping policy for more details.

Express Delivery

Get your parcel quickly with our Priority International shipping option.