Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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