Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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