Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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