Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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