Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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