Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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