Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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