Langer's Sudoku Assistant

Invalid Sudoku!

The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

Start Over

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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