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.

 

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

 

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