Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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