Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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