Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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