Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Go back and make a different choice.

 

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

 

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