Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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