Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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