Solving Sudoku with LEGO Mindstorm

Do you know Sudoku? The objective of this game is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which typically has a unique solution.

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Well, you know that a Sudoku can be resolved using a computer fairly easy, but what if I tell you a LEGO Mindstorm machine can be build to solve it and WRITE the solution in the paper?! Don’t believe me?! See it.

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What do you say? Impressed? I really am.

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