Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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