The title's pretty self explanatory. I wrote this program for two reasons - firstly, as an exercise in C programming, but also because I was having trouble with a particular sudoku puzzle at the time.
The program should be able to find a solution to any solvable puzzle. For the case of puzzles solvable using only elimination (no "guessing" required), the solution is unique. For solutions which require "guessing", the uniqueness of the solution cannot be guaranteed.
http://dl.dropbox.com/u/1614464/sudosolve.c
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