               Trefoil   
         by Joseph R. Chiko
            June of 1991
     with CLSN Pascal Version 1.0


This fascinating game is based on
La Belle Lucie.  The only difference
is that the aces are placed on the
foundation as the cards are dealt.


Layout:  The computer deals 16 fans
of three cards each.  The actual
layout drawn is represented by
capital 'F' for each fan.  The
foundations are represented by the
capital letters of each suit.

         F  F  F  F  F  S
         F  F  F  F  F  H
         F  F  F  F  F  C
         F              D

The top cards in each fan are 
available for play on either the
foundation or another fan.  The
foundations are built up to kings
from aces.  The fans can be built
down within suit.  Only one card 
can be played at a time.  Fans 
which are removed are never 
replaced.  


Redeals:  Two redeals are permitted.
On the second redeal an extra new is
created by the computer.  Normally,
this would be done manually, however,
by doing it this way is cheaper in
terms of memory used by the program
and it also places an added element
of chance into this game.  


Scoring:  Five points are earned for
each card placed on the foundation
after the initial deal.  Three are
earned on the first redeal and one
on the second.  


Computer play:  The cursor is a 
single arrow.  Place the arrow on the
fan against which play is to occur.
The computer will first attempt to
move the card to the foundation.  If
this can not be done, it will then 
search all the fans for the 
appropriate card and if available
move it to the fan the arrow is 
resting on.  The keyboard arrows and
return or the joystick can be used
to move the cursor.  


The remaining commands are input via
the keyboard.  The are listed below:

     Esc     - terminate the program
     R       - redeal
     arrows  - move cursor
     return  - make play
     stick   - move cursor
     fire    - make play
