Does this have any Replayability? Or once you solve it can you always solve it in just a few minutes?

I would say it depends on how good your memory is. For me, once solved, mix it back up and let sit for how ever long you would not remember what it took to solve it.

What happens when you solve it? Does it lock? Does something detach?

A great euphoria washes over you. 😐

The description says "material: plastic" then later in the description says "solid wood puzzle". Which is it?

I bought two and both were wooden. If the pic shows wood and you do not get a wooden puzzle, then return it but make sure it says returnable.

Is there a hidden compartment in this to put money or something in? I want to get something for Christmas for my kids. But if there isn't a prize at.

No and hopefully your kids are at least teenagers because this is not an easy puzzle. Still working on mine! There is one or more of these puzzles with a hidden box. I think it might be Pandora or Emperors chest.....

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🧠 Unlock Ancient Genius, One Spin at a Time!

ETHICAL IMPACTFUL - Woman-owned brand supporting young adults with autism—smart gifting with a social conscience.
ELEGANT DESK DISPLAY - Crafted from laser-cut wood, it doubles as a sophisticated décor piece for your workspace or bookshelf.
TOP TIER BRAIN WORKOUT - Rated 5/5 difficulty, this puzzle hones visualization and problem-solving skills like no other.
MASTER THE 42 CHALLENGE - Spin interlocking gears until every column sums perfectly to 42—only for the sharpest minds.
INSPIRED BY ANCIENT GENIUS - Modeled after the legendary Antikythera mechanism, it connects you to history’s greatest minds.

The Project Genius Grecian Computer is a premium wooden mechanical math puzzle inspired by the ancient Antikythera mechanism. Designed for ages 8+, it challenges users to align layered gears so each radiating column sums to 42 simultaneously. Rated extremely difficult, it sharpens visualization and problem-solving skills while serving as an elegant desk or bookshelf display. Crafted by a woman-owned U.S. company committed to social impact, this puzzle is the perfect gift for engineers, computer scientists, and puzzle enthusiasts seeking a historic yet modern mental challenge.

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€ 49.72

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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Product Dimensions	16.5 x 17.6 x 6 cm; 190 g
Manufacturer recommended age	8 years and up
Item model number	TG406
Educational Objective(s)	Patience Skill
Number of Game Players	1
Number of Puzzle Pieces	1
Assembly Required	No
Batteries Required?	No
Batteries Included?	No
Material Type(s)	Wood
Color	Multi
ASIN	B08469GT8K

Project Genius Grecian Computer Mechanical Math Puzzle, Wooden Brainteaser Gift for History Buffs and Smart Kids, Teens, and Adults - True Genius Series Inspired by The Ancient Antikythera Mechanism

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