Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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