Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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