Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 2 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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