Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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