Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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