Short/Comlicated solution to top50000 #8

Advanced methods and approaches for solving Sudoku puzzles

Postby doduff » Fri Jun 16, 2006 12:39 am

Carcul, how did you get the puzzle to the state that it is in your post? I would like to try to follow your chain through as an exercise.

I get this at the point that SS can give no more hints:
Code: Select all
 *-----------*
 *-----------------------------------------------------------------------------*
 | 236     23      2346    | 169     7       149     | 5       12469   8       |
 | 7       9       246     | 5       14      8       | 3       1246    12      |
 | 5       1       8       | 369     2       349     | 67      469     79      |
 |-------------------------+-------------------------+-------------------------|
 | 8       237     2369    | 12379   134     123479  | 1267    1236    5       |
 | 123     4       5       | 1237    6       1237    | 9       8       1237    |
 | 1236    237     2369    | 123789  138     5       | 1267    123     4       |
 |-------------------------+-------------------------+-------------------------|
 | 23      8       23      | 17      9       17      | 4       5       6       |
 | 9       5       1       | 4       38      6       | 28      7       23      |
 | 4       6       7       | 238     5       23      | 18      139     139     |
 *-----------------------------------------------------------------------------*
doduff
 
Posts: 32
Joined: 29 May 2006

Postby Carcul » Fri Jun 16, 2006 8:41 am

Sorry Doduff, I posted the wrong grid (post edited). Anyway, one could arrive at that grid by using a Continuous Multiple Implication Nice Loop. You may want to try to find it as an (aditional) exercise.

Carcul
Carcul
 
Posts: 724
Joined: 04 November 2005

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