Why
bother solving a Sudoku puzzle with a software program?
What brain power does it take to do that? Writing the program  yes.
But just for a solution  no.
The whole point of a puzzle is to challenge the mind and gain the satisfaction
from the final solution.
That's the main reason puzzle games, like sudoku, are becoming more
and more prevalent in various media such as newspapers, Internet, etc.
There
are three tutorials here;
1.
a very simple puzzle to start with,
2. one
for a puzzle in The Daily Telegraph and
3. one for a puzzle in The Times.
First,
a very simple, animated tutorial of my own composition to explain the
basics of sudoku.
Second, a 24 page tutorial charts the progress to
a solution of a Sudoku puzzle from the Daily Telegraph rated as
having a moderate level of difficulty.
At each step there is a brief description of my reasoning.
My thanks and recognition to Michael Mepham of The Daily Telegraph who
set this puzzle on the 23rd. March 2005. This puzzle requires a guess
at one point just to spice things up!
The
third tutorial takes seven pages to work through a 'fiendish' rated
puzzle from The Times
published on the 1st. April 2005. My thanks and recognition to The Times
and Wayne Gould.
I
readily admit that there may be more elegant solutions to these examples.
This is just the way I did it.
Extra
tips for solving Sudoku  Tip1 ... 3
in a bed. Tip2 ... a
right pair.
And now for the real test  a free 16x16
grid SuperSudoku puzzle for you to solve; and a
second 16x16.
Here is a third 16x16 SuperSudoku
puzzle .
Here
is a little 8k zip file containing a sudoku.doc and sudoku.xls for
free download of grid templates similar
to the tutorial.
It is virus checked to be free of nasties! Use in Word or Excel
or just print out for study on the loo.
Roger
Walker 
