Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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