Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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