Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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