Sudoku Tutor & Solver
 Phil's sudoku solver shows how puzzles can be solved using purely logical techniques. Each technique is accompanied by a help screen which gives full explanation of the logic involved. Many puzzles are provided to give real working examples of the technique. 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: BasicSet THEN        OR Advanced Set Fish All X-Wings Swordfish Franken SF Mutant SF Jellyfish Franken JF Mutant JF Starfish    AICs Simple Continuous Discontinuous Complex Discontinous2 Remote pairs With UR With X-wing With ALS With almost AHP With almost XY wing    Deadly All Rectangles Avoidable/ Reverse Larger    ALSs ALL Simple ALS Double ALS ALS wings    Forcing All Single cell Double unit Triple unit Quad unit Triple cell Quad cell                        MSLS All 4-4 4-5 5-5 3-4 3-3 2-3 3-6 3-5 2-4 2-2 Replace Network Others Show result of n=True,  enter 3 digits: n, row, col:   Show result of n=False, enter 3 digits: n, row, col:   Find AIC from SL,  enter 6 digits: n, row, col x 2:

 Help Files