Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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Take any Sudoku puzzle you are having trouble with -- or any one at all -- and enter the initial values. With each entry the proscribed options are eliminated for you

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