Art of Play - Wonder by Design

Equa Pocket Puzzle

Equa Pocket Puzzle - Main image
Equa Pocket Puzzle
$8.5 $17 In stock

Category: Brainteasers

This unusual mechanical challenge was inspired by the design of an ancient scientific instrument called an astrolabe. Two crossed rings rotate within the tetrahedral frame but small metal tabs block their movement in certain directions. It may seem unlikely, but not only is it possible to unlink the rings and remove them from the frame, there are two different ways to do it. One solution unlocks both rings at once, and the other takes them out one at a time. A difficult problem even for advanced puzzlers. 

Designed by one of our favorite puzzle creators, Oskar van Deventer of the Netherlands. Manufactured by Hanayama of Japan.

Customer Reviews (4.6 / 5 · 5 reviews)

George ★★★★★

The two crossed rings move in a way that’s genuinely unlike any puzzle I’ve tried—there’s a real satisfying click when the tabs finally line up. I’ve had it on my desk for a week and still find myself picking it up during calls. It’s compact enough to toss in a pocket, too.

Ruby Y. ★★★★★

The tetrahedral frame feels surprisingly solid for something this small, and the way the two crossed rings interact with those metal tabs keeps my brain engaged for way longer than I expected. It’s the kind of puzzle that’s frustrating in the best possible way, and the astrolabe-inspired design make

Ellie O. ★★★★★

The crossed rings move in a way that feels almost alive, and that tetrahedral frame gives it a satisfying heft. Those little metal tabs kept me stumped for a solid half hour, which is exactly what I wanted from a pocket puzzle.

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