Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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