Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. Column 8 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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