Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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