Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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