Play Sudoku
Sudoku | Kakuro | Hanjie | Logic Puzzles | CodeWords

Sudoku Puzzles

Play Sudoku Puzzles
Easy Sudoku
Moderate Sudoku
Difficult Sudoku
Very Hard Sudoku
Fiendish Sudoku
Asymmetric Sudoku
Alphabetic Sudoku
Kids Sudoku
Sudoku X

Sudoku: About

About Sudoku
Sudoku FAQ
Valid Sudoku
Sudoku History
Sudoku Index

Sudoku For You

Buy sudoku puzzles
Sudoku eBook
Charity Puzzles
Custom Sized Puzzles
Commercial Sudoku
Sudoku CD
Blank Sudoku Grid
Contact Us
Sudoku Player

Other Puzzles

Puzzle Club
Play Kakuro
Kakuro Puzzles
Sudokus Book


Business quotes
Celebrity quotes
Famous quotes
Favourite quotes
Funny quotes
Inspiring quotes
Political quotes
Quotes by Job
Quotes by Keyword
Quotes by Topic
Silly Quotes
Sports quotes
Top 100 quotes

Sudoku Strategies

The best way to solve a Sudoku puzzle is to start off going through and writing in the numbers that you can pin down immediately to an exact location. This is the most immediate sudoku strategy to implement and thus a key solving tip. For instance, look at the sudoku below, showing the top three rows of the puzzle:
Example sudoku grid
If you go through the rows one by one, and try to work out where each number could go, you can have immediate success. This is the sort of strategy you use automatically without even realising it. For instance: Look at the Number 1. We know that there must be a 1 in each of the first three rows. Now, the first and second row already have a 1. The third row doesn't.

We can place it straight away - it can't be in squares 2, 3, 8, 9 of the row as these already contain numbers. That leaves squares 1, 4, 5, 6, 7 of row three. It can't be in square 1 as there is already a 1 in this 3 x 3 square. Similarly, it can't be in square 4 , 5, 6. This only leaves one place - square 7, and we thus place the one there:

You can carry on using this sudoku solving strategy, going through each number from 1 - 9, row by row, and placing numbers accordingly. Then, do the same with the numbers in each column. Finally, do it with the numbers in each square. Often, this straightforward deduction will be enough to enable you to place all the numbers. Remember that when you add more numbers, this often triggers you to place more and more numbers.

Ready for more hints and tips? Strategy Part II

Visit the PuzzleClub for unlimited sudoku and over 20 other puzzle types in our Puzzle Club.

Sudoku X :: Slash Sudoku :: Killer Sudoku :: Jigsaw Sudoku :: Offset Sudoku :: Toroidal Sudoku :: Killer Sudoku X