Langer's Sudoku Assistant

Invalid Sudoku!

Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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