Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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