Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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