Category: Brainteasers
This puzzle is made by combining two pieces each of two similar, but slightly different shapes. They are carefully calculated, with tricky movement added. It is impossible to unravel with one linear movement.
Designed by Korean puzzle creator JinHoo Ahn. Made by Hanayama.
I’ve been fiddling with this thing every evening for a week, and that “tricky movement” between the pieces really throws you off in the best way. The fit is so precise that even when you think you’ve got it, one little twist sends you back to square one. Finally solved it this morning, and honestly,
The way the two similar shapes interlock and then shift with that tricky movement is pure genius—I keep picking it up every evening and losing track of time. It took me three days before my brain finally caught on to the non-linear path.
I've spent three evenings with this little hourglass and I'm still not bored—the way those two slightly different shapes catch each other mid-move is genuinely clever. The "tricky movement" adds just enough resistance to keep me guessing without ever feeling unfair. Definitely earning its spot on my
