Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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