Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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