Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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