Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 4 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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