Mastermind
How to play mastermind:
The computer randomly selects a code, the
complexity of that code varies according
to the difficulty level you have selected.
You then have to crack the computer's code.
You do this but inputting your own codes
then pressing the 'check your code' button;
you will then be told how much of your code
is correct: black dots indicate that you
have the correct colour in the correct position,
white dots indicate that you have got the
correct colour in the wrong position.
Your score is calculated using the number
of attempts you made at cracking the code
and the time it took you to crack the code.
So to get a good score you need to be quick
and efficient.