Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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