Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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