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.

 

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

 

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