Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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