Does anybody know if it is made with lead free enamel?

According to info at the ThinkFun website -- www.thinkfun.com/safety/ -- their educational products are lab-tested and certified to meet the highest quality control and safety standards (which SHOULD mean no lead paint)). For directly addressing your concern, you can email the company at: support@thinkfun.com

Can someone share me some scans of Instruction booklet with solutions and Thirty-one challenges? It never came with it or the Leatherette travel case.

sorry, I don't have a scanner. The booklet is tiny, the same size as the puzzle. It shows some arrangements that you can make, also some arrangements that are impossible. For example, you can make the pattern with the numbers 1-15 in order top to bottom and left to right with the empty square on the bottom. But the same pattern with the empty square on the top is impossible. You can find more info about the fifteen puzzle on line including Wiki. Good luck!

Thank you for your question. This item does not come with a case. Fox Valley Traders

Is it magnetized so pieces won't slide down when held vertically?

No, it is not magnetized so the pieces do slide, but they won't come off they board.

Thinkfun Fifteen Puzzle | Desertcart Ecuador

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Description

🧩 Unlock your mind’s potential with the timeless Fifteen Puzzle!

PREMIUM DURABILITY - Crafted from high-quality materials to withstand endless play sessions.
COMPACT TRAVEL READY - Sleek design fits perfectly in your bag for on-the-go mental workouts.
BRAIN BOOSTING CHALLENGE - Sharpen your problem-solving and spatial reasoning with every move.
GLOBALLY TRUSTED CLASSIC - Join over 50 million players worldwide who rely on ThinkFun for brain games.
PERFECT GIFT FOR ALL AGES - Ideal for educators, parents, and game night enthusiasts seeking smart fun.

The ThinkFun Fifteen Puzzle is a compact, durable mechanical puzzle designed to enhance critical thinking, problem-solving, and spatial reasoning for ages 8 and up. With over 50 million units sold worldwide, it’s a trusted educational tool and a perfect gift for anyone looking to combine fun with brain training.

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