The New Sudoku Players' Forum

[sooren12]

Hi guys. hope I'm not in a wrong section and asking a wrong question!
stuck in this puzzle :

[creint]

After manual input into my solver.
First easiest available steps are locked singles:
Take box 3 (upper right) from grid 1. Digit 4 must be in last column, after excluding 4 from r13c7 you can place digit 5 in r3c7.
After that its only singles left.

Solution:

Hidden Text: Show

Code: Select all

8 9 3 1 5 4 2 7 6                 
4 6 5 2 7 9 1 8 3                 
7 1 2 6 8 3 5 9 4                 
3 5 4 7 9 2 8 6 1 5 4 3           
6 8 7 4 1 5 9 3 2 7 6 8           
9 2 1 3 6 8 7 4 5 2 1 9           
2 7 6 8 3 1 4 5 9 6 2 7 8 1 3     
1 3 9 5 4 7 6 2 8 9 3 1 4 5 7     
5 4 8 9 2 6 3 1 7 4 8 5 6 9 2     
      6 7 3 5 8 4 1 9 2 3 7 6 5 8 4
      2 8 9 1 7 6 3 5 4 2 8 9 6 1 7
      1 5 4 2 9 3 8 7 6 1 4 5 3 9 2
            7 6 1 5 4 3 9 2 8 1 7 6
            8 3 5 2 1 9 7 6 4 8 5 3
            9 4 2 7 6 8 5 3 1 2 4 9
                  9 2 5 6 1 7 4 3 8
                  4 3 1 8 9 2 7 6 5
                  6 8 7 4 5 3 9 2 1