Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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