Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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