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

 

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