Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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