Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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