Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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