Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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