The New Sudoku Players' Forum

[Ravy]

I have been looking at this for a day, and came to the web to look for techniques to help. I found this wonderful site, but I still don't see any techniques that help. Please point me in the right direction.

1 4 35 | 257 8 25 | 39 6 79
7 8 6 | 9 3 1 | 2 5 4
39 2 359 | 57 6 4 | 8 37 1
------------------------------------------------------------
5 9 1 | 3 4 6 | 7 2 8
2 3 4 | 8 1 7 | 5 9 6
6 7 8 | 25 9 25 | 4 1 3
------------------------------------------------------------
4 5 79 | 6 2 3 | 1 8 79
8 1 37 | 4 5 9 | 6 37 2
39 6 2 | 1 7 8 | 39 4 5


Thanks!

On Edit: Ouch! Sorry, the spacing I used is being removed

[bennys]

You can use the uniqueness argument on R1C4,R1C6,R6C4,R6C6

[Ravy]

I guess I don't know that one. Where can I find out about it?

[bennys]

just use the search option above for "uniqueness"

[Ravy]

Thank you! I have seen that several times, but have never seen it talked about (other than here) as a method. Much appreciated!