Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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.