The New Sudoku Players' Forum

[incutonez]

I've been working on this one for a while, and I can't figure out the next logical move to make... I really don't know what technique to use, other than guessing.

[JasonLion]

There is a Sashimi X-Wing on 5, and then singles to the end.

[incutonez]

Interesting, I guess I had skipped over that technique... I'll look into it, thanks. I ended up solving it with forced chains. Appreciate the help!

[Leren]

Code: Select all

*--------------------------------------------------------------*
| 9     3     4      | 1     5     28     | 68    2678  278    |
| 1     2     6      | 7     34    348    | 9     5     38     |
| 8     57    57     | 6     9     23     | 13    12    4      |
|--------------------+--------------------+--------------------|
| 2     158   1589   | 4     36    36     | 7     18    1589   |
|*356   4567  579    | 8     27    1      |*3456  246   2359   |
| 36    14678 178    | 5     27    9      | 13468 12468 1238   |
|--------------------+--------------------+--------------------|
|*56    9     2      | 3     8     56     | 14    147   17     |
| 4     8-5   3      | 2     1     7      |*58    9     6      |
| 7     1568  158    | 9     46    456    | 2     3     58     |
*--------------------------------------------------------------*

The Sashimi XWing can also be viewed as a Skyscraper. At least one of r7c1 or r8c7 must be 5, so you can eliminate the 5 in r8c2.

Leren