Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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