Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 2 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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