Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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