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- ========================================================================
- =------------------------ Amiga Bridge v 1.0 --------------------------=
- =----------------------------------------------------------------------=
- =------------------------ (C) Erik Bergersjö --------------------------=
- =----------------------------------------------------------------------=
- =-------------------------- Documentation -----------------------------=
- =----------------------------------------------------------------------=
- =--------------------------- 09 Dec 1991 ------------------------------=
- ========================================================================
-
- What is Amiga Bridge v 1.0?
- ---------------------------
-
- As you might have guessed, Amiga Bridge is an Amiga program that plays
- the game bridge. It supports a subset of the bidding system described
- by Eric Jannersten in his books "Bridge från grunden" and "Systemet i
- ett nötskal" (I don't know their english titles, if any).
- As far as I know, this is the first non-commercial bridge program
- available for the Amiga. In my opinion it compares well with the
- commercial ones :-) , especially when the user interface is concerned.
- I admit the documentation might be a bit sparse, but who reads lengthy
- documentation files anyway?
- Please note that this is the first release; the bidding is far from
- perfect and the computer doesn't always play the correct cards
- (who does?).
-
- Included files
- --------------
-
- Bridge The executable file.
- Bridge.info A beautiful icon, for workbench users.
- Bridge.doc This very file.
- Bridge.prefs Default settings (colors, ...). This file is not
- required. Save your own preferences with this name.
-
- Distribution
- ------------
-
- Amiga Bridge v 1.0 is shareware, NOT public domain.
- ~~~~~~~~~
- It may be freely distributed (as long as all files except Bridge.prefs
- are included as is) for non-commercial purposes. However, if you decide
- to keep it you really should make a contribution.
- Write to: Erik Bergersjö
- Fornminnesv. 20
- 446 00 Älvängen
- Sweden
-
- If possible, send bug-reports to (e-mail) d9erikb@dtek.chalmers.se.
-
- Acknowledgements
- ----------------
-
- I'd like to thank some people for making life easier to live:
-
- o Martin Ewaldz (Pascal source, PC bridge. The basics
- for the bidding system...)
- o Colin Fox & Bruce Dawson (req.library - what would I do
- without it?)
-
-
- How hands are valued
- --------------------
-
- o Honor points (hp).
- ACE => 4 hp, KING => 3 hp, QUEEN => 2 hp, KNIGHT => 1 hp.
- There are a lot of special cases where other values should be
- used. However, for simplicity the special cases are ignored.
-
- o Distribution points (dp).
- The calculation of distribution points (as described in the books
- I've read) is complicated. It gives a different number of points
- depending on the progress of the bidding.
- I have chosen a simple approximation:
- All suits with less than 3 cards => (3 - number of cards) dp.
-
- o Points (also refered to as "normal points").
- This is the sum of the honor points and the distribution points.
-
- o Trick points (tp).
- The number of trick points for a hand depends on the selected trump.
- It represents how many tricks we should be able to secure with
- the specified trump (8 tp <=> 8 probable tricks).
- A table is used to find the offensive value of the honors.
- Suits with more than 3 cards give 0.5 (1 for trump) tp for each
- additional card. Only the integer part is used.
-
- o---------------------o-----------------------o
- | 3 E-K-Q | 1 1/4 E-Kn-x | "x" represents any
- | | K-Q-x | card less than 10.
- | 2 1/2 E-K-Kn | |
- | E-Q-Kn | 1 E |
- | | K-Q |
- | 2 1/4 E-K-10 | K-Kn-x |
- | | Q-Kn-10 |
- | 2 E-K | |
- | E-Q-10 | 3/4 K-Kn |
- | K-Q-Kn | K-10-9 |
- | | |
- | 1 3/4 E-Kn-10 | 1/2 K-x |
- | | Q-Kn-x |
- | 1 1/2 E-Q | Q-10-9 |
- | K-Q-10 | |
- | K-Kn-10 | 1/4 Q-x |
- | | Kn-10-x |
- o---------------------o-----------------------o
-
-
- The bidding system
- ------------------
-
- The bidding system is probably the most complex part of Amiga Bridge.
- I'm not going to describe it here.
- There are two menu items in the "Game" menu ("Opening bids" and
- "Response bids") that will help you with details about the implemented
- opening & response bids possible.
- However, there are other bid classes.
-
- o Blackwood (4 NT, 4 NT - ? - 5 NT).
- The first blackwood question asks partner for number of aces,
- the second for number of kings. The second question gives the
- additional information that all the aces are accounted for.
- Amiga Bridge doesn't treat trump king (queen) as an ace (king).
- The responses are:
- 4 NT: 5 C <=> 0 or 4 aces, 5 D <=> 1 ace, 5 H <=> 2 aces,
- 5 S <=> 3 aces.
- 5 NT: 6 C <=> 0 or 4 kings, 6 D <=> 1 king, 6 H <=> 2 kings,
- 6 S <=> 3 kings.
-
- o Normal bids. A bid that doesn't fit any convention is normal.
-
- o Illegal bids. All unsupported bids are illegal. They don't give
- any information whatsoever. The computer never makes illegal bids.
-
- To find the correct bid (and to learn the system), experiment!
- Make a bid, then select "Display info" from the "Game" menu.
- If you made the wrong bid you can always select "Restart" (or
- "Restart game" from the "Game" menu) and try again.
- You can also select "Auto bidding" from the "Preferences" menu and
- bidding will be handled automatically.
-
- Preferences
- -----------
-
- o Computer cheating When selected, the computer will cheat & look
- at your cards. This results in faster (and
- sometimes better) moves. Normally the computer
- calculates simulated distributions, based on the
- information obtained from bidding.
- o Auto bidding The computer handles the bidding automagically.
- o Award honor bonus In the good old days, bonus points were awarded
- for having all the honors (or all honors in
- trump).
- o Change colors Now why would you want to do that?
-
- ========================================================================
-