Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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