Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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