Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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