Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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