Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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