Langer's Sudoku Assistant

Invalid Sudoku!

Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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