New techniques to solve any puzzle

Submitted By: pjb from Sydney

As I am Australian and this is an Australian site, can I draw your attention to my new online Sudoku Solver (and Tutor): www.philsfolly.net.au

Using some new logical techniques, this solver can crack even the hardest known puzzles. It is written in Javascript and is fully interactive. In contrast to some other solvers whose solutions for these hardest puzzles border on incomprehensible, the new techniques I have come up with are readily understandable and fully explained in the help items given for all techniques.

The program shines in demonstrating solutions to medium difficulty puzzles - the hard/diabolical puzzles that one finds in books and newspapers. It has a full implementation of fish, ALSs, POMs, URs and chains, so most puzzles are taken care of without reverting to the advanced techniques involving nets or contradiction.

Feedback on bugs or other problems would be appreciated

pjb

4 Comments
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FLOCKMAN  From Brent Knoll
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Hello pjb. I tried solving a difficult sudoku that I created on Halloween last week using your solver but got stuck. Can you help me out? It is below 6....894.9....61...7..4....2..61..........2...89..2.......6...5.......3.8....16..
09/Nov/11 5:41 AM
pjb  From Sydney
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Dear Flockman

This is quite a difficult puzzle, well done. After the basics there are no eliminations until you try 'exocet'. Then there are two exocets with the same numbers 3457 in the middle chute one after the other. I saw a puzzle like this in another forum, and a solution was offered by ttt. This method allows setting [50] to 1 and [35] to 9. Having done this, the puzzle solves with basic moves. I have since added this method to my solver's 'exocet' technique, so hopefully it will work for you now. The link to ttt's explanation is "http://forum.enjoysudoku.com/the-hardest-sudokus-new-thread-t6539-225.html#p206790"

pj b
09/Nov/11 10:05 PM
Robin  From Canberra
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The URL isn't recognised.
23/Nov/11 6:34 PM
pjb  From Sydney
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I cannot detect any connection problem from my end. Try again at http://www.philsfolly.net.au

Phil Beeby
24/Nov/11 7:40 AM
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