Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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