Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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