Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 8 is invalid. Go back and make a different choice.

 

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

 

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