Swedish hacker Hans Andersson doesn't need a robot to solve sudokus puzzles. That's because he's a genius capable of making a robot that can solve sudoku puzzles. He used Lego Mindstorms to do it, and even the writing is beautiful.
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On the Heyzeuss Awesome 1 to 10 scale, this gets a Spinal Tap 11. [Tilted Twister via Hackaday]