Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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