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Bridge is the program stored in the local site so that the player can 
communicate with other remote players.  To be able to use this program,
you must have a terminal supporting "curses".  When you are invited to play
the game, a message will be shown on your screen indicating someone
wants to talk to you as the talk program does and requests you to type
'talk xxx@yyy.zzz.edu'.  At this moment, you should type 'bridge
xxx@yyy.zzz.edu' to make the connection.  It's obviously confusing because 
you don't know the message is coming form some one who wants to talk to 
you or form some one who wants to play bridge with you.  Unfortunately,
this is what we have so far, we may be able to improve it later.
The confusion can be avoided by presetting the time for playing bridge
via talk or mail in advance.  You can assume that you are invited to 
play bridge when talk Daemon shows the message around the preset time.

Since we assume that all the users of 'bridge' are experienced computer
users and bridge players, there will not be any HELP information other
than those shown on the screen.  Please read the followings carefully
before you start to use the program.

(1)General Guide:
   1. Always end your input with a carriage return.
   2. Input only when you are prompted to avoid mistakes.
   3. Some abbreviations are used:
      N: No Trump, S: Spade, H: Heart, D: Diamond, C: Club,
      X: Double, XX: Redouble, P: Pass, T: 10.

(2)Bidding:
   You will be prompted when it is your turn to bid.  You will be prompted
   again if your bid is illegal.  To make a bid, type the rank(between 1 and 7)
   followed by the suit(N,S,H,D,C); or type P, X, and XX for Pass, Double, 
   and Redouble respectively.  Remember to end it with a carriage return.
   Please note that a single carriage return means PASS.
   The followings are legal INPUTs (not necessary legal bids):
     1H, 2N, 4C, X, XX, P,...
   The followings are not legal inputs:
     5, S, 0D, 8C, ....
   All the inputs are checked for the validity according to the rules of
   bridge game.  You are encouraged to report any illegal bid which is
   accepted by the program.

(3)Playing:
   You will be prompted when it is your turn to play.  You will be prompted
   again if your play is illegal.  To make a play, type the suit(S,H,D,C)
   followed by the face value(2,3,...,9,T,J,Q,K,A) and end it with a carriage
   return.  There are three special features for playing:
   1. Following:
      When you are not the first person to lead a card, you can simply input
      the face value(2,3,...,T,J,Q,K,A) which means you are following the
      same suit.  For example, if your right hand side opponent leads S3, you
      can type J instead of SJ when you want to play SJ.
   2. Don't Care:
      When you have only one choice or you don't care which card is to be 
      played, you can simply type a carriage return.  In such case, the porgram
      will automatically play the card which is a legal play and has the lowest
      rank.  The cards are ranked as: SA>SK>...>S2>HA>...>C2.  To avoid the
      disaster caused by typing mistake, this function is disabled when you
      are in the position to lead a card except the last round.
   3. Finish Quickly (claim):
      The declarer, in his turn or dummy's turn to play, can claim the number
      of tricks he can win to save time.  To make the claim, the declarer
      has to type in Fn, where n is a number between 0 and 13 which means
      declarer is willing to finish the game with n MORE tricks.  A single
      "F" without any number followed means all the tricks left.  This claim
      is subject to the approval of the opponents.  All the cards will be
      shown on the opponents' screen to make their decision easier.  If the
      opponents don't agree to finish the game, the play is resume after
      all extra cards are erased from the opponents' screen.

(4)Scoring
   The scoring system of our birdge program is rubber.  To win the rubber
   bonus, basically, you have to win two games before your opponents do.  
   Thus, you might need a different strategy in playing rubbers.  For your
   convenience, the scoring rule is also enclosed. Due to the limited space
   on the screen, please note the following notation:

         N-S  E-W
      TRICK  ...  ...  <-- number of tricks won by each side so far
      SCORE  ...  ...  <-- score below the line (see the attached scoring rule)
                            which doesn't exceed 100 points.
      TOTAL  ...  ...  <-- total score (including the score in SCORE entry) won
                          by each side so far

It is also important to know whether you and/or your opponents have won a game
already.  To gain this information, you have to look at the upper left corner
on the screen, i.e. the VUL field.  It can be interpreted as:

            VUL.

            NONE    <-- neither side has won a game
            N-S     <-- N-S has won a game, but E-W hasn't
            E-W     <-- E-W has won a game, but N-S hasn't
            BOTH    <-- both N-S and E-W have won a game

(5) Conversation:
    All your inputs are sent to the bridge program when you are in input
    mode.  However, if you are in conversation mode, all your inputs will
    be sent to the screens of all other players (same as talk does, but it
    is a multiway talk).  The ESC key is used to switch back and forth
    between input mode and conversation mode.  You will be put in the input
    mode at the beginning of the game.

(6)Ending:
   There is not a graceful way to end this program.  It will run forever
   unless you type a ctrl-C. 

==============================================================================
SCORING TABLE

Trick Score (below the line)

Spades of Hearts	30 per trick	|  If doubled:
Diamonds or Clubs	20 per trick	|	multiply by 2
Notrump		40 for first trick	|  If redoubled:
	30 for each additional trick	|	multiply by 4

Game - 100 points or more below the line

Bonuses (above the line)

Rubber bonus:	500 if you win two games out of three
		700 if you win the only two games

			Not Vulnerable		Vulnerable
Slam Bonus:  Small Slam	     500		    750
	     Grand Slam	    1000		   1500

/* NOT IMPLEMENTED
Honors:  4 trump honors in one hand		100
	 5 trump honors in one hand		150
	 4 aces in one hand at notrump		150
*/

Making Doubled (or redoubled) Contract:	 50 points

			Not Vulnerable		Vulnerable
Overtricks:  Undoubled	  trick value		trick value
	     Doubled	  100 per trick		200 per trick
	     Redoubled	  200 per trick	 	400 per trick

Penalties (above the line)

			Undoubled		Doubled
		Not Vul.	Vul.	  Not Vul.	Vul.
Down 1		   50		100	    100		200
Down 2		  100		200	    300		500
Down 3		  150		300	    500		800
Down 4		  200		400	    700	       1100
Down 5		  250		500	    900	       1400
Down 6		  300		600	   1100	       1700
Down 7		  350		700	   1300        2100
Down 8		  400		800	   1500	       2500
  .                .             .           .           .
  .                .             .           .           .
  .                .             .           .           .

If redoubled: multiply the doubled penalty by two.

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