Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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