Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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