## Stuck. Looking for my next move.

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### Stuck. Looking for my next move.

Hey There .. This is how far I got ..

Code: Select all
`.   .     .    | .    .    69    | 569    3569   356.   29    25   | 469  57   .     | .      569    456759  .     .    | .    57   49    | 24579  259    .---------------+-----------------+--------------------46  .     267  | .    .    2467  | 246    .      .59  2479  2567 | 469  .    24679 | 2468   23568  2346.   249   .    | 469  246  .     | 2456   .      2456---------------+-----------------+--------------------.   .     .    | .    69   .     | 679    .      67.   .     .    | .    246  246   | 2568   2568   25646  47    67   | .    29   .     | .      29     .`

and this is the completed numbers if you want them.

Code: Select all
`714 | 28. | ...8.. | ..3 | 1...63 | 1.. | ..8----+-----+----.8. | 53. | .19... | .1. | ...3.1 | ..8 | .7.----+-----+----258 | 3.1 | .4.139 | 7.. | ...... | 8.5 | 3.1`

I am looking for the next move .. I have exhausted my limited
techniques so it'd be great if you could show me a move that
gets me going again .. I tried to look for a chain but couldn't see
one.

Maybe there are some hidden tripples but I can't see them.

Thanks

barnaby
barnaby

Posts: 4
Joined: 31 December 2005

5s in box 4 are locked to row 5, so can eliminate all other 5s in that row (box 6)
9s in box 8 are locked to column 5
5s in row 1 are locked to box 3, so all other 5s in box 3 can be eliminated
Finally, start looking for naked pairs - after just a couple the puzzle is on its way to being solved.

Take a look at either of these sites for explanations/examples of locked candidates and naked pairs if you're not familiar with them:
http://www.angusj.com/sudoku/hints.php
http://www.simes.clara.co.uk/programs/sudokutechniques.htm
Shazbot

Posts: 220
Joined: 24 September 2005

Shazbot wrote:5s in box 4 are locked to row 5, so can eliminate all other 5s in row 1 are locked to box 3, so all other 5s in box 3 can be eliminated

aha .. that was the key move.

'Spose I shoulda seen it as I know about locked candidates. Maybe I gave up too easily.

Thanks for helping me out again !

barnaby
barnaby

Posts: 4
Joined: 31 December 2005

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