Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 8 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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