Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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