Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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