Phil's Sudoku Helper & Solver

This sudoku solver shows how puzzles can be solved using purely logical "human" techniques. Each technique is accompanied by a help screen which gives full explanation of the logic involved. The underlying code runs fastest in the Chrome browser, and this is highly recommended. The content is updated on a regular basis, so it is recommended to clear the cache to see latest version.

Puzzles can be imported in linear or grid form, new or partially completed.
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Click to import grid: 
Show singles in output

Utility                     Remaining:
                             
Basic
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  THEN        OR  
Advanced
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Network            
 Show result of n=True,  enter 3 digits: n, row, col:   Show result of n=False, enter 3 digits: n, row, col: 
 
Help Files