Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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