Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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