Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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