Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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.