Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 6 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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