Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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