Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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