Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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