Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Go back and make a different choice.

 

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

 

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.