Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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