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Jun 21, 2013 at 14:40 comment added Yoav Kallus What do you mean by "exactly the same argument?" The solution to a Sudoku puzzle is in no way the ground state of a normal computer.
Aug 14, 2012 at 23:48 comment added Steve Huntsman I could use essentially the same argument for a normal computer: it is a physical system that can solve Sudoku (I have used a Sudoku solver in MATLAB, even). The "only" difficulty is in the logical interpretation of the system configuration.
Aug 14, 2012 at 21:40 history answered Yoav Kallus CC BY-SA 3.0