Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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