Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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