Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 3 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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