Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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