Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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