Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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