Over the past few weeks I have become somewhat addicted to a number puzzle called Sudoku.
Some of you have heard about it already. For those who haven’t, the rules are simple. Every row and column will contain the numbers 1 to 9, with no duplicates. Every 9 cell box will also contain the numbers 1 to 9 with no duplicates. So it’s simply a matter of figuring out where each number goes, and the way they make the puzzles there will always be only one solution which can be figured out with logic and no guesswork.
Here’s a picture of one of the recent puzzles I worked on:
It was actually pretty easy up till this point. I can’t seem to figure out what to do next. So I used trial and error and got the solution fairly quickly – but I still need to learn what the logic rule I could have used was.
If you are interested in Sudoku visit http://sudoku.org.uk, they have some nice starting tutorials as well as a daily puzzle which I have been doing.