Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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