# Sudoku Hints

The Sudoku Instructions Program can give you hints, tips and tricks during solving
of any sudoku puzzle. Thereby it can help improve your sudoku skills.

Consider this sudoku puzzle:

If you cannot find a square in which there can be just one single digit - ‘a single
candidate’, then you can ask the program for a hint or tip.

You just click menu item ‘Hint’. Then you will have two choices: ‘Hint 1’ and ‘Hint
2’.

## Sudoku hint 1

If you click ‘Hint 1’ you will get this message:

This may sometimes be enough information to find the single candidate in column c.

## Sudoku hint 2

However, if you need more help just click ‘Hint 2’. Then you will get this message:

Now that you know in which square the single candidate is located, you may figure
out which digit should be in that square.

## Find single candidate

If you cannot find a single candidate, you may get the necessary help by asking the
program using menu item ‘Solve’ and ‘Find Single Candidate’ as shown here:

If you do that, you will get this message:

Here you get the information you need. Now you will also be able to see why digit
2 must be in square C4.

(In column C digit 2 cannot be inside box J or box P, where there already is a 2.
In row 6 there is also a 2. Therefore in column C digit 2 can only be in square C4.)

So you place 2 in that square:

If you proceed in the same way, you will arrive at this final solution of the sudoku
puzzle:

For more features that can facilitate solving of sudokus see here.

Copyright: The Sudoku Instructions Programming Unit - All rights reserved - Contact.