Ian's Sudoku Solver.
Remember when these mathematical puzzles first swept the globe?
Fun and often frustrating.
Ian formulated a spreadsheet that would solve (most of) them using three basic rules.
Deduction
Induction
Elimination
And, of course, repetition.
Yes, it may spoil the fun, but it was also a good academic exercise to prove it could be done. Soon after completing his spreadsheet, Ian applied for a job, using it as an example to demonstrate his Excel skills.
He got the job.
Though this spreadsheet uses just three basic rules to attempt solving the puzzles, many more techniques are available to sudoku puzzlers. Many of these are too difficult to include in a basic spreadsheet like this one.
Still, it works on many Sudokus, and will help if you're stuck. To purchase a read-only copy of this spreadsheet, please visit the Store page.
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