Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. Go back and make a different choice.

 

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

 

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