
Last Christmas I bought some ThinkFun puzzles for my kids and they absolutely loved them. It was the hardest thing I've ever encountered. Some of the puzzles are ridiculously difficult even for me as an adult. Some of them are very simple and obviously copies or inspired by old puzzles like this one. My 5 year old gave up immediately but my 8 year old loved it. He was definitely struggling, but I saw that he was learning spatial thinking. He loves building things, taking them apart and watching them work. This type of puzzle is perfect for someone like him.

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