Just received it in the mail, sounds like a rattle or something has come loose inside?

No it will make a rattling sound because that's part of the puzzle. Mine sounds the same way but it's perfectly fine. Just don't bang it against things thinking it's got something stuck!

Is this harder than the nutcase

Much harder. I had nutcase apart and back together in 10 minutes. I still haven’t put quartet back together. I set it aside for the last long while because I got frustrated with it.

Does the solution to Nutcase involve a cross-threaded nut? I need to know if I am breaking my puzzle and need to get it back.

There's no cross threading of either nut

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Infinity Hanayama Metal Brainteaser Puzzle Mensa Rated Level 6, for Ages 12 and Up

Product ID: 257720690

Details

Brand
Bepuzzled
Manufacturer Minimum Age (MONTHS)
144.0
Number of pieces
1
Product dimensions
29L x 19W
Puzzle type
Assembly &

📏Compact 5.1 x 5.1 x 0.3 cm size

🧩Mensa-rated Level 6 challenge

⚙️Precision-crafted metal design

¥5392

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧠 Unlock Infinity: The Ultimate Mensa-Rated Metal Brain Teaser

COMPACT PORTABLE BRAIN GYM - Take your mental workout anywhere with a lightweight, pocket-sized design perfect for on-the-go stimulation.
MASTER THE MENSA LEVEL CHALLENGE - Push your cognitive limits with a Mensa-rated Level 6 brainteaser designed for true puzzle connoisseurs.
CONVERSATION STARTING DESK DISPLAY - Elevate your workspace aesthetic with a sophisticated puzzle that doubles as a stylish collectible.
SLEEK DURABLE METAL CRAFTSMANSHIP - Experience premium quality with a precision-engineered metal puzzle that’s built to last and impress.
PERFECT GIFT FOR THE INTELLECTUAL MILLENNIAL - Ideal for ages 12+, this puzzle is the ultimate gift for those who crave challenge and style in one.

The BePuzzled Infinity Hanayama is a Mensa-rated Level 6 metal brainteaser puzzle, expertly crafted in Japan with precision metalwork. Compact and durable, it offers a sophisticated challenge for ages 12 and up, combining intricate design with portable mental stimulation. Perfect for collectors and professionals seeking a stylish, high-quality puzzle that sharpens logical thinking and problem-solving skills.

Specifications

ASIN	B01MZE341P
Additional Features	3D
Age Range Description	12 and Up
Best Sellers Rank	#3,148 in Toys ( See Top 100 in Toys ) #59 in Jigsaw Puzzles
Brand Name	Bepuzzled
Color	Silver
Country of Publication	China
Customer Package Type	FFP
Customer Reviews	4.8 4.8 out of 5 stars (823)
Educational Objective	Logical Thinking, Problem Solving Skill
Global Trade Identification Number	00023332307982
Included Components	1 Puzzle
Is Assembly Required	No
Item Dimensions	5.1 x 5.1 x 0.3 centimeters
Item Dimensions L x W	29L x 19W millimeters
Item Shape	Square
Item Type Name	Hanayama
Item Weight	0.3 Pounds
Manufacturer	University Games
Manufacturer Maximum Age (MONTHS)	1188.0
Manufacturer Minimum Age (MONTHS)	144.0
Manufacturer Part Number	30798
Manufacturer Warranty Description	No Warranty
Material Type	Metal
Material Type Free	Plastic Free, Latex Free, PVC Free, BPA Free, Phthalate Free, Lead Free
Model Number	30798
Number of Items	1
Number of Packs	1
Number of Pieces	1
Number of Players	For 1 to 1 players
Operation Mode	manual
Play Activity Location	Tabletop
Product Style	Infinity
Puzzle Type	Assembly & Disassembly
Set Name	Infinity
Size	One Size
Skill Level	Expert
Sub Brand	Hanayama
Subject Character	Various
Theme	Puzzles
UPC	023332307982
Unit Count	1 Count

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