Bought for grandson's 12th birthday. There are many details, but the instructions are simple. My advice - use sandpaper! Insert small rectangular pieces into the oval holes, carefully sanding the edges that come in first. This makes it easier to insert and press parts. The wood is very strong, I was very afraid of breaking the pieces if I press too hard, but that didn't happen. In a world of digital gaming, I highly recommend this toy!
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