Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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