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.

 

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

 

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