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.

 

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

 

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