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.

 

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

 

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