Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 3 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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