Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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