Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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