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.

 

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

 

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