Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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