Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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