Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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