Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 8 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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