Numberphile2 | Magic Square Party Trick (extra footage) @numberphile2 | Uploaded 8 years ago | Updated 2 hours ago
Main video: youtu.be/aQxCnmhqZko
More Magic Square videos: http://bit.ly/MagicSquareVideos
Parker Square: youtu.be/aOT_bG-vWyg
More with Matt Parker: http://bit.ly/Matt_Videos

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