Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Go back and make a different choice.

 

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

 

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