Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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