Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 6 is invalid. Go back and make a different choice.

 

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

 

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