Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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