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\include{bml}
\title{Loca}
\author{System by Jinksy, Documentation by Cthulhu Dreams}
\begin{document}
\maketitle
\tableofcontents

\section{Introduction}

Loca has the following basic opening structure:

\begin{bidtable}
1\c \> 2+\c . Natural or balanced\\
1\d \> 4+ \d s, 14+ unbalanced\\
1\h \> 5+ \h s 14+\\
1\s \> 5+ \s s 14+\\
1NT \> 11+ - 14 semi bal, includes 5422 and 4441 shapes\\
2\c\d\h \> 5+ suit 10-13 HCP\\
2\s \> 5+\s\ not 5/5 \c s or \h s\\
2NT \> 5+\s\ and 5+\c s or \h s\\
3\c \> Diamonds F1\\
3\d \> Hearts F1\\
3\h \> Spades F1\\
3\s \> Clubs F1\\
3NT \> Nat to play (Ed: Terrible, play as a good 4HS?)\\
4\c\d \> Nat Preemptive\\
4\h\s \> To play
\end{bidtable}

\section{One Level Openings}

5422 and 4441 may be treated as bal and open 1!C/1N (but not with x!S).  With 2245 specifically open 1!C and treat as balanced unless P bids a minor naturally. With 4441  normally open 1!D unless the singleton is !D, when open 1!C.

\subsection{The 1\pdfc\ opening}

Loca uses transfer responses to a 1\c\ opening, with 1\d\ being an artifical two way negative.

\begin{bidtable}
1\c---\\
1\d \> 4-5\c s, 5+ points or 0-5 points, no 6cM\\
1\h \> ~5+ points, 4+ !Ss\\
1\s \> Catchall?\\
1NT \> 6+\h s, ~5+ points\\
2\c \> GF with 5+\d s\\
2\d \> GF with \c s\\
2\h\s \> 0-5~ with 6+ suit\\
2NT \> 5-5 !Hs & !Ds GF\\
3\c \> 7-9 points, (5-4) \c s & \d s (either way) NF\\
3\d \> 5\h s-5\c s GF\\
3\h\s \> balanced 10-12, no 4M, no 5m\\
3NT \> balanced 10-12 with partial stops
\end{bidtable}

Sample 1\c\ openings

\dealdiagram
{}
{}
{}
{\hand{A9xx}{A9xx}{Axx}{Ax}}
{Board 1\\South / None}

\dealdiagram
{}
{}
{}
{\hand{A9}{A9xx}{J}{AKxxxx}}
{Board 2\\South / None}

\subsection{The 1\pdfd\ opening}

Showing 5+D (may be 4 if 4441 shape), 14+ points, normally unbalanced

\begin{bidtable}
1\d---\\
1\h \> 0+ pts 4+\h s, may have longer minor if weak.\\
1\s \> 0+ pts 4+\s s, may have longer minor if weak.\\
1NT \> 0-9, no 4 card major\\
2\c \> GF with 4+\c s\\
2\d \> inverted raise, 7+, f1, may include 4\h\ or 4\s\ if gf values\\
2\h\s \> 6+suit, 0-5 pts\\
2NT \> 8-9 bal\\
3\c \> 8-9.5pts 6+\c s\\
3\d \> 0-6 pts, 4+D preemptive\\
3\h\s \> Splinter, unlimited\\
3NT \> 10-12 3334 or 3343 and good stops in CHS\\
4\c\d \> Splinter, unlimited
\end{bidtable}

\subsection{The 1\pdfh\ opening}

\begin{bidtable}
1\h---\\
1\s \> 0+ pts 4+\s s, may be canape.\\
1NT \> 0-9, no 4 card major\\
2\c \> GF with 4+\c s\\
2\d \> GF with 4+\d s\\
2\h \> 3\h s 4-7 TPs\\
2NT \> 4+\h s, inv+ raise\\
3\c\d \> 7-9 good suit, NF\\
3\h \> 5- TP, 4 card support, pre\\
3\s \> Splinter, unlimited\\
3NT \> Undefined\\
4\c\d \> Undefined
\end{bidtable}

\subsection{The 1\pdfs\ opening}

\begin{bidtable}
1\s---\\
1NT \> 0-9, no 4 card major\\
2\c \> GF with 4+\c s\\
2\d \> GF with 4+\d s\\
2\h \> GF with 4+\h s\\
2\s \> 3\h s 4-7 TPs\\
2NT \> 4+\s s, inv+ raise\\
3\c\d\h \> 7-9 good suit, NF\\
3\s \> 5- TP, 4 card support, pre\\
3NT \> Undefined\\
4\c\d \> Undefined
\end{bidtable}

\subsection{The 1NT Opening}

You can always use your favour weak NT systems, but the need to open 5422 and 4441 hand shapes 1NT drives the need to provide the capability for responder to differentate more hand types.

\begin{bidtable}
1NT---\\
2\c \> Stayman\+\\
2\d \> No major\+\\
2\h \> Weak take out with both majors\\
2\s \> To play\\
3\c \> Weak TO\\
3\d \> DNE\\
3\h \> 5/5 \h s & \s s\\
3\s \> slam try in \s s\-\\
2\h \> 4+\h s may have 4\s s\+\\
2\s \> nf inv with 4\s s\\
2NT \> inv\\
3\c \> weak TO\\
3\d \> DNE\\
3\s \> slam try in \s s\-\\
2\s \> 4+\s s\\
2NT \> 4-4 majors, minimum\\
3\c \> 4-4 majors, maximum\-\\
2red \> Transfer\\
2\s \> Invitational or strong 2-3 suiter\\
2NT \> Puppet Stayman
\end{bidtable}

\section{Two level openings}

\subsection{General Principles}

\begin{itemize}
\item Since opener is limited, responder can pass any bid, including conventional ones - eg 2C 2D 2N (showing min opening, no 4cM, 4-5Cs) might be passed.

\item On 5-5 hands in the range, open 2N with Hs & minor, 2C with CD and max, 2H with HS max, otherwise better suit

\item Upgrade and downgrade frequently - particularly distributional 12 point hands with good intermediates and no wasted-looking values can often open at the 1 level (basically subtract 3 abstract points and decide if you�d open it 1 of a suit in Acol), mediocre dist 9 or even 10 counts (eg QJ83/K8432/4/K96) can sometimes be passed - or opened at 3 level, esp with all their points concentrated in the suit  - If a balanced 11 count or a 12 count that might not be excited by your 2 opening is likely to have a decent play for game, you have to choose carefully between 1 and 2 level openings (but keep in mind opposite a 1-level bid P will probably GF with as much as a 9 count. And don�t put too much stock in upgrading because of major suit holdings - p can ask you about those without going past the 3 level, so with borderline hands that will play well opposite a major fit, he should be inviting frequently)

\item After 2M openings, a feature ask and positive response commits opener to assume a GF - though obviously responder can theoretically pass.

\item After a feature ask, you show a major suit if you have one (strength comes later), or with min and a side minor, you show that as an alt place to play at the 3 level. With max, opener doesn�t normally have room to show the minor unless he�s specifically asked about it by responder.

\item Opener can never keycard ask. If he continues to cue to the 4N level, bidding 4NT is Turbo, showing an even number of keycards (4N is even, for mnemonic and possibly theoretical purposes), bypassing it shows an odd number. After such a sequence, 5N by either bidder shows the trump queen (odd number of N, odd number of trump Qs), bypassing denies it.

\item When the agreed suit is a minor, a non-jump 4NT by either side is Turbo.

\item On some occasions opener has 2 suits that have been indicated and responder might want to start cueing. When responder can bid one or both of them at 4D or below (ie when they�re not the majors), the cheaper of the two sets the suit, anything else is a cue for the other suit. Where neither is available so cheaply (eg you�ve reached 3S and have still been asking about length), 4C sets Hs, 4D sets Ss. Don�t know if this is a real convention, but I�ll call it minor indicating major (mIM) for easy reference.

\item All this the system below is for 1st and 2nd seat openings only. For 3rd and 4th openings, 2 level openings basically deny interest in game opposite anything but good support, and could be quite weak - basically you treat them like regular weak 2s (or regular intermediate 2s in 4th). Any 2 level suit by responder is an attempt to correct part score. With invite and a fit he bids 2N and then what? - feature-showing responses with max?  and what�s a max? or shortage at 3 level.

\item It�s rarely - I think never - possible to start cueing below 3N following a 2-level opening. If in doubt, 3M by either player is usually natural.

\item Unlike regular preempts, opener can sometimes reenter the auction. In particular after 2a 2b P P, he should X aggressively.

\end{itemize}

\subsection{The 2\pdfc\ Opener}

2\c\ shows 5+\c s unbalanced, without 5+ \h s or \s s, 9-13 points. Open with when max with 5-5 in the minors, or min with better \c\ suit.

\begin{bidtable}
2\c---\+\\
2\d \> Inv+ feature ask\\
2\h\s \> Constructive NF\\
2NT \> GF Feature Ask w/4+\d s\\
3\c \> Preemptive\\
3\d \> semi-GF with 6+ \h s\\
3\h \> Semi-GF with 6+ \s s\\
3\s \> Splinter\\
3NT \> To Play\\
4\c \> Preemptive\\
4\d\h\s \> Fit Jump\-
\end{bidtable}

\subsection{The 2\pdfd\ Opener}

2\d\ shows 5+\d s unbalanced, without 5+ \h s or \s s, 9-13 points.

\begin{bidtable}
2\d---\+\\
2\h \> Inv+ feature ask\\
2\s \> Constructive NF\\
2NT \> GF Feature Ask w/4+\c s\\
3\c \> inv+ w/6+\h s\\
3\d \> Preemptive\\
3\h \> Semi-GF with 6+ \s s\\
3\s \> Splinter\\
3NT \> To Play\\
4\c\h \> Splinter\\
4\d \> Preemptive\-
\end{bidtable}

\subsection{The 2\pdfh\ Opener}

2\h\ shows 5+\h s unbalanced, without 5+\s s unless 6+\h s, 9-13 points.
2H---
2S   Inv+ feature ask
2N   GF Feature Ask w/4+\c s
3c   GF Feature Ask w/4+\d s
3D   Inv+ with 6+ \s s
3H   Preemptive
3S   Splinter
3N   To Play
4CD   Splinter
4H   To Play - may be a two way shot

\subsection{The 2\pdfs\ Opener}

2\s\ shows 5+\s s unbalanced, or precisely 5422, 9-13 points.

\begin{bidtable}
2\s---\+\\
2NT \> Inv+ feature ask\\
3c \> GF Feature Ask w/4+\c s\\
3\d \> GF Feature Ask w/4+\d s\\
3\h \> Natural 5+\h s\\
3\s \> Preemptive\\
3NT \> To Play\\
4\c\d\h \> Fit jump or slam try, F1\-
\end{bidtable}

\subsection{The 2N Opener}

\begin{bidtable}
2NT \> shows 5\s s and 5+\c s or 5+\h s, 9-13 points. Developed to take the pressure off the 2\s\ opener.
\end{bidtable}

\begin{bidtable}
2NT---\+\\
3c \> Pass or correct\\
3\d \> Forcing Inquiry\\
3\h \> ??\\
3\s \> Invitational Natural\\
3NT \> To Play\\
4\c\d\h \> Fit jump or slam try, F1\-
\end{bidtable}

\section{IGNORE EVERYTHING AFTER HERE}

In this example we use transfer responses to the 1\c\ opening:

\begin{bidtable}
#+BEGIN_SRC\\
1\c---\\
1\d \> 4-5!Hs, 5+ points or 0-5 points, no 6cM\\
1\h \> ~5+ points, 4+ !Ss\\
1\s \> Catchall?\\
1NT \> 6+!Hs, ~5+ points\\
2\c \> GF with 5+!Ds\\
2\d \> GF with !Cs\\
2\h\s \> 0-5~ with 6+ suit\\
2NT \> 5-5 !Hs & !Ds GF\\
3\c \> 7-9 points, (5-4) !Cs & !Ds (either way) NF\\
3\d \> 5-5 Hs & Cs GF\\
3\h\s \> balanced 10-12, no 4cM, no 5cm\\
3NT \> balanced 10-12 with partial stops\\
#+END_SRC
\end{bidtable}

\subsection{After a transfer}

This section has two asterisks, meaning it will be at level two
(so its a subsection). You might also have noticed that the
paragraphs, the sections and the bidtables are separated by a
blank line? This is important in BML, as the blankline are used to
separate elements.

\begin{bidtable}
1\c-1\d;\\
1\h \> Minimum with 2--3\h \+\\
1\s \> 4+\h , 4\s , at most invitational\\
1NT \> Sign off\\
2\c \> Puppet to 2\d \+\\
2\d \> Forced\+\\
2\h \> Mildly invitational with 5\h \\
2\s \> Invitational, 5+\h\ and 4\s \\
2NT \> Strongly invitational with 5\h \\
3m \> Invitational with 4\h\ and 5+ minor\\
3\h \> 6\h , about 11--12 hcp\-\-\\
2\d \> Artificial game force\\
2\h \> 6+\h , about 9--10 hcp\-\\
1\s \> 5+\c , 4+\s , unlimited\\
1NT \> 17--19 bal, 2--3\h \\
2\c \> 5+\c , unbal, 0--2\h , 0--3\s \\
2\d \> Reverse\\
2\h \> Minimum, 4\h \\
2\s \> 16+ hcp, 5+\c\ and 4+\h \+\\
3\d \> Retransfer\+\\
3\h\+\\
3\s \> Cue bid, slam interest\\
4\c\d \> Cue bid, slam interest\\
4\h \> To play\-\-\\
3\h \> Invitational\\
3\s \> Splinter\\
4\c\d \> Splinter\\
4\h \> To play\-\\
2NT \> 16+ hcp, 6+\c . 18+ if 3\h \+\\
3\c \> Suggestion to play\\
3\d \> Relay\+\\
3\h \> 3\h , 18+ hcp\-\\
3\h \> Game forcing with 6+\h \-\\
3\c \> 15--17 hcp, 6+\c\ and 3\h \+\\
3\d \> Retransfer\\
3\h \> Invitational\-\\
3\d \> 17--19 bal, 4\h \+\\
3\h \> To play\-\\
3\h \> 13--15 hcp, good hand, 5+\c\ and 4\h \+\\
3NT \> Asking for singleton\-
\end{bidtable}

This bidding table shows a couple of new features. The most
prominent is the ability to add continuations directly in the
table, by using whitespaces. We also see another example of
appending bids to an existing sequence, by using 1C-1D; in the
beginning. There's also the use of 3m, meaning both 3C and 3D.

\section{Defense to 1NT}

Defining bidding when both sides bid is a little bit more tricky,
since you have to write all the bids (even passes). The opponents'
bid are indicated by encapsulating them in parentheses. P is used
for Pass, D for Double and R for Redouble.

\begin{bidtable}
(1NT)---\\
Dbl \> Strength, ca 15+\\
2\c \> At least 5-4 majors\+\\
(D)\+\\
Pass \> 5+\c , suggestion to play\\
Rdbl \> Asking for better/longer major\\
2\d \> 5+\d , suggestion to play\-\\
(P)\+\\
2\d \> Asking for better/longer major\-\-\\
2\d \> A weak major or a strong minor\+\\
(P)\+\\
2\h \> Pass/correct\\
2\s \> Pass/correct\\
2NT \> Asking\-\-\\
2\h\s \> Constructive\\
2NT \> 5-5 minors\\
3X \> Preemptive
\end{bidtable}

Note that the above is only for a direct overcall over 1NT. To
define the above also when balancing. We've used BML's
copy/cut/paste functionality in order to showcase that you do not
have to write it all over again. Take a look below (only visible in
the \emph{example.txt} file, not in HTML, LaTeX or .pdf):

First we used the \texttt{\#COPY} command; the text between \texttt{\#COPY} and \texttt{\#ENDCOPY}
got put into a sort of clipboard, with the tag nt\_defense which we
specified. To paste it into the bidding table above we used
the \texttt{\#PASTE} command. We also used the \texttt{\#HIDE} option. When this is
present in a bidding table the table will be exported to Full
Disclosure, but not to HTML or LaTeX.

You could also include other BML-files into your main file by using
the \texttt{\#INCLUDE} command. Just type \texttt{\#INCLUDE <filename>} and the entire
file will be inserted at the point where you wrote the command. This
is a useful way to separate your system into modules, or perhaps
just to make it more manageable.

It is also possible to add continuations when the opponents
interfere:

\begin{bidtable}
1\c-(1\d)---\\
Dbl \> 4+\h \\
1\h \> 4+\s \\
1\s \> INV+ with 5+\d\ / Negative NT\\
1NT \> Game forcing, 5+\c\ or balanced\\
2\c \> 5+\c , 5--9 hcp\\
2X \> 6+ suit, 4--8 hcp\\
2NT \> Invitational
\end{bidtable}

\section{The 1NT opening}

Here's the reason why I left out the 1NT opening earlier: I will
showcase how to make sequences dependant on vulnerability and
seat. This will be a bit messy, so hold tight!

We start by cutting our NT-module, since this will be used on all
NT-openings. \texttt{\#CUT} is similar to the \texttt{\#COPY} command, but using \texttt{\#CUT}
means that it isn't parsed as a bidding table until it is pasted.

The \texttt{\#VUL} command is used to set the vulnerability. It takes an
argument of two characters, each can be Y, N or 0. The first
character asks if we are vulnerable and the second asks if our
opponents are vulnerable. Y is for Yes, N is for No and 0 means that
it doesn't matter.

The \texttt{\#SEAT} command sets the seat in which the bid should be valid. 0
means that the seat doesn't matter (all seats), 12 means first or
second and 34 means third or fourth. 1--4 could also be used.

So when we're not vulnerable we open 1NT 12--14 in 1st and 2nd seat.

But in third and fourth seat it is 14--16.

When we're vulnerable we always open 1NT 14--16.

\begin{bidtable}
1NT---\\
2\c \> Stayman\+\\
2\d \> No major\\
2NT \> 4-4 majors, minimum\\
3\c \> 4-4 majors, maximum\-\\
2red \> Transfer\\
2\s \> Minor suit stayman\\
2NT \> Invitational
\end{bidtable}

We've been using the \texttt{\#HIDE} command, so we don't have to see our
NT-system over and over again. This time tough we paste it
normally, so that we see it at least once.

\section{Lists}

I'd like to show you how to make lists in BML. It is pretty
simple:

\begin{itemize}
\item Here's a list!

\item With a couple of

\item Items in it

\end{itemize}

You could also make ordered lists:

\begin{enumerate}
\item This is ordered

\item Just add numbers

\item To each item

\end{enumerate}

\end{document}