Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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

JohnLanger.com

© Copyright 2005, John Langer, All Rights Reserved.