Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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