Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 1 is invalid. The top left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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