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.

 

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

 

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