Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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