Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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