new package chess-problem-diagrams, 16nov08

git-svn-id: svn://tug.org/texlive/trunk@11320 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 2074 insertions, 0 deletions

diff --git a/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty b/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty
new file mode 100644
index 00000000000..d23dfded10e
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty
@@ -0,0 +1,2074 @@
+%%
+%% This is file `diagram.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% diagram.dtx  (with options: `style')
+%% 
+%% IMPORTANT NOTICE:
+%% 
+%% For the copyright see the source file.
+%% 
+%% Any modified versions of this file must be renamed
+%% with new filenames distinct from diagram.sty.
+%% 
+%% For distribution of the original source see the terms
+%% for copying and modification in the file diagram.dtx.
+%% 
+%% This generated file may be distributed as long as the
+%% original source files, as listed above, are part of the
+%% same distribution. (The sources need not necessarily be
+%% in the same archive or directory.)
+%%  File 'diagram.dtx'
+%%
+%% This file may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version
+%% 1.2 of this license or (at your option) any later version.
+%% The latest version of this license is in:
+%%
+%%    http://www.latex-project.org/lppl.txt
+%%
+%% and version 1.2 or later is part of all distributions of LaTeX
+%% version 1999/12/01 or later.
+%%
+%%
+%%
+%%
+\ProvidesPackage{diagram}[2008/03/09]
+\DeclareOption{10pt}{\AtBeginDocument{\diagramx}}
+\DeclareOption{11pt}{\AtBeginDocument{\diagramxi}}
+\DeclareOption{12pt}{\AtBeginDocument{\diagramxii}}
+\ExecuteOptions{10pt}
+\ProcessOptions
+\RequirePackage{ifthen}
+\RequirePackage{calc}
+%%
+%%
+%%
+\chardef\f@ur=4
+\chardef\@ight=8
+\newcount\elchfont
+
+\chardef\@pkelch=0
+\chardef\@fselch=1
+
+\newcount\dia@type
+
+\newif\if@textproblem\@textproblemfalse
+\def\textproblem{\@textproblemtrue\let\@dia@stipulation=\relax}
+
+\newif\if@solafterdiagram\@solafterdiagramfalse
+\def\solafterdiagram{\@solafterdiagramtrue\ignorespaces}
+
+\newif\if@vframe\@vframetrue
+\newif\if@hframe\@hframetrue
+\newif\if@leaveOuter\@leaveOutertrue
+
+\newif\if@shortform
+
+\newif\ifspace@vertical
+\def\spacehorizontal{\space@verticalfalse}
+
+\newif\ifdi@no
+\newcounter{board@nr}
+\newboolean{piececounter}
+\newcount\r@w
+\newcount\lin@
+\newcount\pl@ne
+\newcount\current@plane
+
+\newcount\w@cnt
+\newcount\b@cnt
+\newcount\n@cnt
+\newboolean{cpd@checkPieceCounts}
+\newcounter{cpd@defWhitePieces}
+\newcounter{cpd@defBlackPieces}
+\newcounter{cpd@defNeutralPieces}
+
+\newcounter{cpd@whitePieces}
+\newcounter{cpd@blackPieces}
+\newcounter{cpd@neutralPieces}
+
+\newcommand{\cpd@stepcounterWhite}{\stepcounter{cpd@whitePieces}}
+\newcommand{\cpd@stepcounterBlack}{\stepcounter{cpd@blackPieces}}
+\newcommand{\cpd@stepcounterNeutral}{\stepcounter{cpd@neutralPieces}}
+\global\let\cpd@stepcounterPieces\relax
+
+\newcount\help@a
+\newcount\help@b
+
+\newbox\dia@box
+\newbox\@cnt@box
+\newdimen\@cnt@wd
+\newbox\@stip@box
+
+\newdimen\topdist\topdist\z@
+\newbox\@test@box
+\newdimen\@test@dimen
+\newif\if@left
+
+\newcount\brd@ff
+
+\newdimen\dia@lineskip
+
+\newdimen\board@width
+\newdimen\bd@width
+\newdimen\head@width
+\newdimen\sq@width
+
+\newdimen\grid@width
+\newdimen\inner@frame
+\newdimen\outer@frame
+\newdimen\space@frame
+\newdimen\v@frame@dist
+\newdimen\h@frame@dist
+\newdimen\space@frame@dist
+\newdimen\v@space@dist
+\newdimen\h@space@dist
+
+\newbox\sq@box
+\newbox\plane@box
+\newtoks\typis@tk\typis@tk={\relax}
+\newtoks\label@tk\label@tk={\relax}
+\newtoks\sol@tk\sol@tk={\relax}
+\newtoks\number@tk\number@tk={\relax}
+\newtoks\aut@tk\aut@tk={\relax}
+\newtoks\city@tk\city@tk={\relax}
+\newtoks\sourcenr@tk\sourcenr@tk={\relax}
+\newtoks\source@tk\source@tk={\relax}
+\newtoks\day@tk\day@tk={\relax}
+\newcount\from@month\from@month=\z@
+\newcount\to@month\to@month=\z@
+\newtoks\year@tk\year@tk={\relax}
+\newtoks\issue@tk\issue@tk={\relax}
+\newtoks\pages@tk\pages@tk={\relax}
+\newtoks\tournament@tk\tournament@tk={\relax}
+\newtoks\award@tk\award@tk={\relax}
+\newtoks\after@tk\after@tk={\relax}
+\newtoks\version@tk\version@tk={\relax}
+\newtoks\correction@tk\correction@tk={\relax}
+\newtoks\dedic@tk\dedic@tk={\relax}
+\newtoks\fidealbum@tk\fidealbum@tk={\relax}
+\newtoks\theme@tk\theme@tk={\relax}
+\newtoks\twins@tk\twins@tk={\relax}
+\newtoks\judgement@tk\judgement@tk={\relax}
+\newtoks\comment@tk\comment@tk={\relax}
+\newtoks\computer@tk\computer@tk={-}
+\newtoks\nofields@tk\nofields@tk={\relax}
+\newtoks\fieldframe@tk\fieldframe@tk={\relax}
+\newtoks\gridlines@tk\gridlines@tk={\relax}
+\newtoks\pieces@tk\pieces@tk={\relax}
+\newtoks\fieldtext@tk\fieldtext@tk={\relax}
+\newtoks\text@tk\text@tk={\relax}
+\newtoks\stipulation@tk\stipulation@tk={\relax}
+\newtoks\condition@tk\condition@tk={\relax}
+\newtoks\remark@tk\remark@tk={\relax}
+\newif\if@label\@labelfalse
+\newif\if@number\@numberfalse
+\newif\if@special\@specialfalse
+\newif\ifauth@r\auth@rfalse
+\newif\if@city\@cityfalse
+\newif\if@sourcenr\@sourcenrfalse
+\newif\if@source\@sourcefalse
+\newif\if@date\@datefalse
+\newif\if@day\@dayfalse
+\newif\if@year\@yearfalse
+\newif\if@issue\@issuefalse
+\newif\if@pages\@pagesfalse
+\newif\if@tournament\@tournamentfalse
+\newif\if@award\@awardfalse
+\newif\if@after\@afterfalse
+\newif\if@version\@versionfalse
+\newif\if@correction\@correctionfalse
+\newif\if@dedication\@dedicationfalse
+\newif\if@fidealbum\@fidealbumfalse
+\newif\if@twins\@twinsfalse
+\newif\if@theme\@themefalse
+\newif\if@computer\@computerfalse
+\newif\if@judgement\@judgementfalse
+\newif\if@comment\@commentfalse
+\newif\if@pieces\@piecesfalse
+\newif\if@fieldtext\@fieldtextfalse
+\newif\if@nofields\@nofieldsfalse
+\newif\if@gridlines\@gridlinesfalse
+\newif\if@fieldframe\@fieldframefalse
+\newif\if@stdgrid\@stdgridfalse
+\newif\if@show@computer\@show@computertrue
+\newif\if@stipulation\@stipulationfalse
+\newif\if@condition\@conditionfalse
+\newif\if@remark\@remarkfalse
+\newif\if@typis\@typisfalse
+\newif\if@widedias\@widediasfalse
+\newif\ifx@twins\x@twinsfalse
+\newif\ifx@cond\x@condfalse
+\newif\ifimitator\imitatorfalse
+\newif\ifnormal@names\normal@namesfalse
+\newif\ifs@lu
+\newif\if@develop\@developfalse
+\newif\if@notfirst
+\newif\if@first
+\newwrite\s@lfd
+\let\below@newline=\relax
+\newcount\@lines
+\newcount\@rows
+\newcount\lines@max
+\newcount\rows@max
+\newcount\planes@max
+\newcounter{cpd@rowsmax}
+\newcounter{cpd@linesmax}
+\newcounter{cpd@current@row}
+\newcounter{cpd@current@line}
+\newcounter{cpd@maxsquare}
+\newcounter{cpd@helper}
+\newcounter{cpd@current@square@index}
+\newcounter{cpd@current@square@value}
+\newif\if@stereo\@stereofalse
+\newif\if@space\@spacefalse
+\newif\if@aindex\@aindexfalse
+\newif\if@sindex\@sindexfalse
+\newif\if@tindex\@tindexfalse
+\newif\ifds@label
+\def\diagram{%
+   \begingroup%
+   \@ifnextchar [{\@diagram}{\@diagram[\@ight x\@ight]}%
+}
+
+\def\@diagram[#1x#2]{%
+   \lines@max=#1%
+   \rows@max=#2%
+   \setcounter{cpd@linesmax}{#1}%
+   \setcounter{cpd@rowsmax}{#2}%
+   \setcounter{cpd@maxsquare}{\value{cpd@rowsmax}*\value{cpd@linesmax}}%
+   \pl@ne=\z@%
+   \current@plane=\z@%
+   \let\put@sqs=\put@sqs@normal%
+   \let\read@plane=\read@plane@normal%
+   \@start@diagram%
+}
+\def\stereodiagram{%
+   \begingroup%
+   \@stereotrue%
+   \let\put@sqs=\put@sqs@stereo%
+   \let\read@plane=\read@plane@stereo%
+   \@start@diagram%
+}
+\def\spacediagram{%
+   \begingroup%
+   \@spacetrue%
+   \@ifnextchar [{\@spacediagram}{\@spacediagram[5x5x5]}%
+}
+
+\def\@spacediagram[#1x#2x#3]{%
+   \lines@max=#1%
+   \rows@max=#2%
+   \planes@max=#3%
+   \let\put@sqs=\put@sqs@space%
+   \let\read@plane=\read@plane@space%
+   \@start@diagram%
+}
+\def\@start@diagram{%
+   \init@vars
+   \let\author=\ds@author
+   \let\day=\ds@day
+   \let\month=\ds@month
+   \let\year=\ds@year
+   \let\label=\ds@label
+   \ignorespaces%
+}
+
+\def\showtypis#1{%
+   \@typistrue%
+   \typis@tk={#1}%
+   \ignorespaces%
+}
+
+\def\enddiagram{%
+   \let\author=\orig@author
+\let\day=\orig@day
+\let\month=\orig@month
+\let\year=\orig@year
+\let\label=\orig@label
+   \if@number%
+   \else%
+      \refstepcounter{board@nr}% so \label and \ref work properly
+   \fi%
+   %
+   % Now \label@tk should be set, if wanted, so
+   % we can generate the index entries
+   %
+   \@aindex%
+   \@sindex%
+   \@tindex%
+   %
+   % Now \@currentlabel will be set right, so we can use
+   % the original label
+   \if@label%
+      \expandafter\@set@label\the\label@tk;%
+   \fi%
+   %
+   % Now we know, if we have frames so we can setup our dimensions
+   %
+   \global\sq@width=\fontdimen\tw@\chessfont%
+   \if@stereo%
+      \bd@width=\@ight\sq@width%
+      \board@width=\@ight\sq@width%
+      \ifdim\h@frame@dist<\sq@width%
+         \h@frame@dist=\sq@width%
+      \fi%
+      % We do already skip with \v@space@dist
+      % So we use the additional skip \space@frame@dist here
+      \v@frame@dist=\space@frame@dist%
+      \ifdim\space@frame>\outer@frame%
+         \outer@frame=\space@frame%
+      \fi%
+      \advance\bd@width\tw@\inner@frame
+      \advance\board@width\tw@\inner@frame
+      \advance\board@width\tw@\h@frame@dist%
+      \advance\board@width\tw@\outer@frame%
+   \else\if@space%
+      \ifdim\h@frame@dist<1.5\sq@width%
+         \h@frame@dist=1.5\sq@width%
+      \fi%
+      % We do already skip with \v@space@dist
+      % So we use the additional skip \space@frame@dist here
+      \v@frame@dist=\space@frame@dist%
+      \ifdim\space@frame>\outer@frame%
+         \outer@frame=\space@frame%
+      \fi%
+      \ifspace@vertical%
+         \bd@width=\lines@max\sq@width%
+         \board@width\bd@width%
+         \advance\bd@width\tw@\inner@frame
+         \advance\board@width\tw@\inner@frame
+         \advance\board@width\tw@\h@frame@dist%
+         \advance\board@width\tw@\outer@frame%
+      \else%
+         \bd@width=\lines@max\sq@width%
+         \advance\bd@width\tw@\inner@frame%
+         \ifdim\h@space@dist<1.5\sq@width%
+            \h@space@dist=1.5\sq@width%
+         \fi%
+         %\h@space@dist=0.7\sq@width%
+         % Now we can compute the width of the complete board
+         \board@width\bd@width%
+         \advance\board@width\h@space@dist%
+         \multiply\board@width\planes@max%
+         \advance\board@width\h@space@dist%
+         \advance\board@width\tw@\outer@frame%
+      \fi%
+   \else%
+      \bd@width=\lines@max\sq@width%
+      \ifnum\lines@max>\@ight%
+         % Make the board wider
+         \board@width=\lines@max\sq@width%
+      \else%
+         % Make a normal width
+         \board@width=\@ight\sq@width%
+      \fi%
+      \advance\bd@width\tw@\inner@frame%
+      \advance\board@width\tw@\inner@frame%
+      \advance\board@width\tw@\h@frame@dist%
+      \advance\board@width\tw@\outer@frame%
+   \fi\fi%
+   \if@widedias%
+      \head@width=\textwidth%
+   \else%
+      \head@width=\board@width%
+   \fi%
+   %
+   % Now we should build the diagram itself
+   %
+   \if@textproblem%
+      % Put the stipulation into the \sq@box
+      \setbox\sq@box=\hbox{\vbox to \board@width{\hsize\board@width%
+         \stipfont%
+         \raggedright%
+         \sloppy%
+         \the\stipulation@tk%
+         \vfil%
+      }}%
+   \else%
+      \put@sqs% This builds up the \sq@box
+      % Check, if the given number of pieces is reached
+      \ifthenelse{\boolean{cpd@checkPieceCounts}}{%
+        \ifthenelse{\value{cpd@defWhitePieces}=\value{cpd@whitePieces}}{}%
+            {\errmessage{Wrong number of white pieces}}%
+        \ifthenelse{\value{cpd@defBlackPieces}=\value{cpd@blackPieces}}{}%
+            {\errmessage{Wrong number of black pieces}}%
+         \ifthenelse{\value{cpd@defNeutralPieces}=\value{cpd@neutralPieces}}{}%
+             {\errmessage{Wrong number of neutral pieces}}%
+      }{}%
+   \fi%
+   %
+   \global\setbox\dia@box=\hbox{\vbox{%
+      \parindent\z@%
+      \parskip\z@%
+      \baselineskip11\p@\advance\baselineskip\dia@lineskip%
+      \hsize\head@width%
+      \centering%
+      % diagram header
+      \vskip\topdist%
+      \vbox{\hsize\board@width\hbox{%
+         \if@develop\if@label%
+            \noindent\raggedright\llap{\labelfont\the\label@tk\ }%
+         \fi\fi%
+         \vbox{%
+            \he@dpos\dia@above%
+         }%
+      }}%
+      \vskip\tw@\p@%
+      % diagram itself
+      \vtop{\hsize\board@width%
+         \hbox to \head@width{\hss\vbox{%
+            \hsize\board@width%
+            \if@textproblem%
+               \box\sq@box%
+            \else%
+               \outer@henbox{\box\sq@box}%
+            \fi%
+         }\hss}%
+         % diagram trailer
+         \hbox to \head@width{\hss\vtop{%
+            \hsize\board@width%
+            \parskip\z@%
+            \raggedright%
+            \put@count%
+            \dia@below%
+         }\hss}%
+      }%
+   }}% End of \dia@box
+   \do@dia@job%
+   \endgroup%
+}
+
+\def\put@count{%
+   % First we build the box with the figure count
+   \ifthenelse{\boolean{piececounter}}{%
+     \global\setbox\@cnt@box=\hbox{%
+        \if@show@computer%
+           \ \ C\if@computer +\else --\fi%
+        \fi%
+        \ \ (\arabic{cpd@whitePieces}+\arabic{cpd@blackPieces}%
+        \ifthenelse{\value{cpd@neutralPieces}>0}{+\arabic{cpd@neutralPieces}}{})%
+      }%
+      \@cnt@wd=\wd\@cnt@box%
+      \hangindent-\@cnt@wd%
+      \hangafter\m@ne%
+      \noindent%
+      \hbox to \z@{%
+        \hbox to \board@width{\hfil\unhbox\@cnt@box}\hskip -\board@width%
+      }%
+   }{}%
+}
+
+\let\endstereodiagram=\enddiagram
+\let\endspacediagram=\enddiagram
+\def\figurine{%
+   \begingroup
+   \init@vars
+   \let\author=\ds@author
+   \let\day=\ds@day
+   \let\month=\ds@month
+   \let\year=\ds@year
+   \let\label=\ds@label
+}
+
+\def\endfigurine{%
+   \let\author=\orig@author
+   \let\day=\orig@day
+   \let\month=\orig@month
+   \let\year=\orig@year
+   \let\label=\orig@label
+   \if@number%
+   \else%
+      \refstepcounter{board@nr}% so \label and \ref work properly
+   \fi%
+   %
+   % Now \label@tk should be set, if wanted, so
+   % we can generate the index entries
+   %
+   \@aindex%
+   \@sindex%
+   \@tindex%
+   %
+   % Now \@currentlabel will be set right, so we can use
+   % the original label
+   %
+   \if@label%
+      \expandafter\@set@label\the\label@tk;%
+   \fi%
+   %
+   \@show@figurine%
+   \endgroup%
+}
+\gdef\selectelchfont#1{%
+   \global\elchfont\csname @#1elch\endcsname\defaultelchfont%
+}
+\newcommand*{\authorfont}{\bfseries}
+\newcommand*{\cityfont}{\slshape}
+\newcommand*{\sourcefont}{\bfseries\itshape}
+\newcommand*{\awardfont}{\itshape}
+\newcommand*{\dedicfont}{\itshape}
+\newcommand*{\stipfont}{\rmfamily}
+\newcommand*{\remfont}{\rmfamily}
+\newcommand*{\labelfont}{\rmfamily}
+\newcommand*{\boardfont}{\rmfamily}
+\newcommand*{\diagramx}{
+   \ifcase\elchfont\relax%
+      \font\chessfont=pkelch12
+      \font\chtextfont=pkelch10
+   \else%
+      \font\chessfont=fselch12
+      \font\chtextfont=fselch10
+   \fi%
+   \dia@lineskip\z@
+   \dia@type\z@
+}
+
+\newcommand*{\diagramxi}{
+   \ifcase\elchfont\relax%
+      \font\chessfont=pkelch14
+      \font\chtextfont=pkelch11
+   \else%
+      \font\chessfont=fselch14
+      \font\chtextfont=fselch11
+   \fi%
+   \dia@lineskip\@ne\p@
+   \dia@type\@ne
+}
+
+\newcommand*{\diagramxii}{
+   \ifcase\elchfont\relax%
+      \font\chessfont=pkelch16
+      \font\chtextfont=pkelch12
+   \else%
+      \font\chessfont=fselch16
+      \font\chtextfont=fselch12
+   \fi%
+   \dia@lineskip\tw@\p@
+   \dia@type\tw@
+}
+\def\defaultelchfont{%
+   \ifcase\@ptsize\relax%
+      \diagramx\or%
+      \diagramxi\or%
+      \diagramxii%
+   \fi%
+}
+\def\dianamestyle#1{\def\@dianame{\csname @#1\endcsname}}
+\def\solnamestyle#1{\def\@solname{\csname @#1\endcsname}}
+\def\diagnum#1{\c@board@nr=#1\advance\c@board@nr\m@ne}
+\def\ra{\mbox{$\rightarrow$}}
+\def\lra{\mbox{$\leftrightarrow$}}
+\let\rla=\lra
+\def\x{\mbox{\ifmmode\times\else$\times$\fi}}
+\def\set{\kern -.05em\raise .1ex\hbox{*}}
+\def\@O{0\raise.25ex\hbox{-}\kern -.1em\relax}
+\def\OO{\@O0}
+\def\OOO{\@O\@O0}
+\def\any{\ifmmode\sim\else$\sim$\fi}
+\def\further{\ifmmode\Rightarrow\else$\Rightarrow$\fi\ \ignorespaces}
+\def\spacelayout#1{\csname space@#1\endcsname}
+\def\nodiagnumbering{\global\di@nofalse}
+\def\diagnumbering#1{%
+   \di@notrue\diagnum{\@ne}%
+   \gdef\thediag{\csname @#1\endcsname\c@board@nr}%
+}
+\def\diagcenter{\def\he@dpos{\centering}}
+\def\diagleft{\def\he@dpos{\raggedright}}
+\def\diagright{\def\he@dpos{\raggedleft}}
+\def\setmonthstyle#1{\def\write@month{\csname @#1\endcsname}}
+\def\specialdiagnum#1{%
+   \@specialtrue%
+   \number@tk={#1}\@numbertrue\def\thediag{#1}\def\@currentlabel{#1}%
+   \ignorespaces%
+}
+\def\ds@label{%
+   \@ifstar{\ds@labelfalse\ds@xlabel}{\ds@labeltrue\ds@xlabel}%
+}
+\def\ds@author#1{%
+   \aut@tk={#1}\auth@rtrue%
+   \ignorespaces%
+}
+\def\city#1{%
+   \city@tk={#1}\@citytrue%
+   \ignorespaces%
+}
+\def\sourcenr#1{%
+   \sourcenr@tk={#1}\@sourcenrtrue%
+   \ignorespaces%
+}
+\def\source#1{%
+   \source@tk={#1}\@sourcetrue%
+   \ignorespaces%
+}
+\def\ds@day#1{%
+   \day@tk={#1}\@daytrue\@datetrue%
+   \ignorespaces%
+}
+\def\ds@month#1{%
+   \from@month=#1\@datetrue%
+   \ignorespaces%
+}
+\def\months#1{%
+   \@months#1;%
+   \ignorespaces%
+}
+\def\ds@year#1{%
+   \year@tk={#1}\@yeartrue\@datetrue%
+   \ignorespaces%
+}
+\def\issue#1{%
+   \issue@tk={#1}\@issuetrue%
+   \ignorespaces%
+}
+\def\pages#1{%
+   \pages@tk={#1}\@pagestrue%
+   \ignorespaces%
+}
+\def\tournament#1{%
+   \tournament@tk={#1}\@tournamenttrue%
+   \ignorespaces%
+}
+\def\award#1{%
+   \award@tk={#1}\@awardtrue%
+   \ignorespaces%
+}
+\def\version#1{%
+   \version@tk={#1}\@versiontrue%
+   \ignorespaces%
+}
+\def\after#1{%
+   \after@tk={#1}\@aftertrue%
+   \ignorespaces%
+}
+\def\correction#1{%
+   \correction@tk={#1}\@correctiontrue%
+   \ignorespaces%
+}
+\def\dedication#1{%
+   \dedic@tk={#1}\@dedicationtrue%
+   \ignorespaces%
+}
+\def\fidealbum#1{%
+   \fidealbum@tk={#1}\@fidealbumtrue%
+   \ignorespaces%
+}
+\def\pieces{%
+   \@ifnextchar[%
+   {\x@pieces}%
+   {\@pieces}%
+}
+\def\x@pieces[#1]{%
+   % We should parse the given piececounts
+   \setboolean{cpd@checkPieceCounts}{true}%
+   \@parseWhiteAndBlackCount#1+\e@list
+   \@pieces%
+}
+\def\@parseWhiteAndBlackCount#1+#2+{%
+   \setcounter{cpd@defWhitePieces}{#1}%
+   \setcounter{cpd@defBlackPieces}{#2}%
+   \futurelet\n@xt\cpd@checkNeutral%
+}
+\let\cpd@nextproc=\relax%
+\def\cpd@checkNeutral{%
+    \if\n@xt\relax%
+        \let\cpd@nextproc=\relax%
+    \else%
+        \let\cpd@nextproc=\@parseNeutralCount%
+    \fi%
+    \cpd@nextproc%
+}
+\def\@parseNeutralCount#1+{%
+   \setcounter{cpd@defNeutralPieces}{#1}%
+}
+\def\@pieces#1{%
+   \pieces@tk={#1}\@piecestrue%
+   \ignorespaces%
+}
+\def\fieldtext#1{%
+   \fieldtext@tk={#1}\@fieldtexttrue%
+   \ignorespaces%
+}
+\def\nofields#1{%
+   \nofields@tk={#1}\@nofieldstrue%
+   \ignorespaces%
+}
+\let\nosquares\nofields
+\def\gridlines#1{%
+   \gridlines@tk={#1}\@gridlinestrue%
+   \ignorespaces%
+}
+\def\fieldframe#1{%
+   \fieldframe@tk={#1}\@fieldframetrue%
+   \ignorespaces%
+}
+\def\stipulation#1{%
+   \stipulation@tk={#1}\@stipulationtrue%
+   \ignorespaces%
+}
+\def\condition{%
+   \@ifstar{\x@condtrue\@condition}{\@condition}%
+}
+\def\@condition#1{%
+   \condition@tk={#1}\@conditiontrue%
+   \ignorespaces%
+}
+\def\twins{%
+   \@ifstar{\x@twinstrue\@twins}{\@twins}%
+}
+\def\@twins#1{%
+   \twins@tk={#1}\@twinstrue%
+   \ignorespaces%
+}
+\def\remark#1{%
+   \remark@tk={#1}\@remarktrue%
+   \ignorespaces%
+}
+\def\Co#1{%
+   \ifx#1+\@computertrue\computer@tk={+}\fi%
+   \ignorespaces%
+}
+\long\def\solution#1{%
+   \sol@tk={#1}\global\s@lutrue%
+   \ignorespaces%
+}
+\def\themes#1{%
+   \theme@tk={#1}\@themetrue%
+   \ignorespaces%
+}
+\long\def\comment#1{%
+   \comment@tk={#1}\@commenttrue%
+   \ignorespaces%
+}
+\long\def\judgement#1{%
+   \judgement@tk={#1}\@judgementtrue%
+   \ignorespaces%
+}
+\def\noframe{%
+   \@vframefalse\@hframefalse%
+   \ignorespaces%
+}
+\def\noinnerframe{%
+   \@leaveOuterfalse\@vframefalse\@hframefalse%
+   \ignorespaces%
+}
+\def\verticalcylinder{%
+   \@vframefalse%
+   \ignorespaces%
+}
+\def\horizontalcylinder{%
+   \@hframefalse%
+   \ignorespaces%
+}
+\def\stdgrid{%
+   \@stdgridtrue%
+   \ignorespaces%
+}
+\let\gridchess=\stdgrid
+\let\magic=\fieldframe
+\let\tourn=\tournament
+\let\dedic=\dedication
+\let\stip=\stipulation
+\let\cond=\condition
+\let\rem=\remark
+\let\sol=\solution
+\def\develop{%
+   \@developtrue%
+   \ignorespaces%
+}
+\def\showcomputer{%
+   \@show@computertrue%
+   \ignorespaces%
+}
+\def\nocomputer{%
+   \@show@computerfalse%
+   \ignorespaces%
+}
+\def\putsol{\immediate\closeout\s@lfd\input\jobname.sol\cl@arsol}
+\def\widedias{\@widediastrue\diagcenter}
+\def\nowidedias{\@widediasfalse}
+\def\normalnames{\normal@namestrue}
+\def\reversednames{\normal@namesfalse}
+\def\makeaindex{%
+   \@dia@index%
+   \newindex[thediag]{author}{adx}{and}{Autorenverzeichnis}%
+   \@aindextrue\reversednames%
+}
+
+\def\makesindex{%
+   \@dia@index%
+   \newindex[thediag]{source}{sdx}{snd}{Quellenregister}%
+   \@sindextrue%
+}
+
+\def\maketindex{%
+   \@dia@index%
+   \newindex[thediag]{theme}{tdx}{tnd}{Themenregister}%
+   \@tindextrue%
+}
+
+\def\authorindex{{\let\@idxitem\@aidxitem\printindex[author]}}
+\def\sourceindex{\printindex[source]}
+\def\themeindex{\printindex[theme]}
+\def\DefinePieces#1#2#3{%
+   \@setPieceColor#1\@setPieceSpec#2\@setPieceRotation#3%
+   \loop@rotation%
+   \expandafter\xdef\csname\ds@black\ds@white\ds@bishop\endcsname{%
+      \noexpand\ch@fig{20}%
+   }%
+   \expandafter\xdef\csname\ds@black\ds@black\ds@bishop\endcsname{%
+      \noexpand\ch@fig{32}%
+   }%
+   \expandafter\xdef\csname\ds@white F\endcsname{{\chessfont\ }}
+   \expandafter\xdef\csname\ds@black F\endcsname{{\chessfont\char144}}
+   \expandafter\xdef\csname\ds@white Nr\endcsname{%
+      \noexpand\ch@fig{109}%
+   }%
+   \expandafter\xdef\csname\ds@black Nr\endcsname{%
+      \noexpand\ch@fig{121}%
+   }%
+   \expandafter\xdef\csname\ds@white Gh\endcsname{%
+      \noexpand\ch@fig{112}%
+   }%
+   \expandafter\xdef\csname\ds@black Gh\endcsname{%
+      \noexpand\ch@fig{124}%
+   }%
+}
+\def\Imi{\ch@fig{157}}
+\def\dia@above{%
+   \@dia@number%
+   \@dia@authors%
+   \@dia@city%
+   \@dia@after%
+   \@dia@version%
+   \@dia@source%
+   \@dia@correction%
+   \@dia@tournament%
+   \@dia@award%
+   \@dia@dedic%
+   \@dia@fidealbum%
+}
+\def\dia@below{%
+   \bgroup%
+   \if@stipulation%
+      \@dia@stipulation%
+   \fi%
+   \ifx@cond\else%
+      \@dia@condition%
+   \fi%
+   \ifx@twins\else%
+      \@dia@twins%
+   \fi%
+   \@dia@remark%
+   \if@solafterdiagram%
+      \below@newline%
+      \the\sol@tk%
+   \fi%
+   \noindent\hbox{}\newline\hbox{}%
+   \egroup%
+}
+\def\@dia@number{%
+   {\authorfont\thediag\par}%
+}
+\def\@dia@authors{%
+   \ifauth@r%
+      \bgroup%
+      \authorfont%
+      \ifnormal@names%
+         \the\aut@tk%
+      \else%
+         {\def\name@sep{\par}%
+         \@notfirstfalse%
+         \let\@action=\@writename% Parse the list of authors
+       \@parseTokenlist\aut@tk;}
+      \fi%
+      \egroup%
+   \fi%
+}
+\def\@show@city#1;{\if@notfirst\ \slash\ \else\@notfirsttrue\fi#1}
+
+\def\p@rsecity#1; {\@show@city#1;\l@@klist}
+
+\def\@dia@city{%
+   \if@city%
+      \bgroup%
+      \cityfont\@notfirstfalse%
+      \let\@action=\p@rsecity\@parseTokenlist\city@tk;%
+      \par%
+      \egroup%
+   \fi%
+}
+
+\def\@dia@after{%
+   \if@after%
+      \bgroup%
+      \dedicfont\the\after@tk\par%
+      \egroup%
+   \fi%
+}
+
+\def\@dia@version{%
+   \if@version%
+      \bgroup%
+      \dedicfont\the\version@tk\par%
+      \egroup%
+   \fi%
+}
+
+\def\@dia@date{%
+   \ifnum\from@month>\z@%
+      \if@day%
+         \the\day@tk.\write@month\from@month%
+      \else%
+         \write@month\from@month%
+      \fi%
+      \ifnum\to@month>\z@--\write@month\to@month\fi%
+      \if@day.\else/\fi%
+   \fi%
+   \if@year\the\year@tk\fi%
+}
+
+\def\@dia@source{%
+   \if@source%
+      \bgroup%
+      \sourcefont%
+      \if@sourcenr\the\sourcenr@tk\ \fi
+      \the\source@tk%
+      \if@date\ \ \fi\@dia@date%
+      \if@issue\ \ \the\issue@tk\fi%
+      \if@pages ,\ \the\pages@tk\fi%
+      \par%
+      \egroup%
+   \else%
+      \if@tournament\else\if@date%
+         \bgroup%
+         \sourcefont%
+         \@dia@date%
+         \par%
+         \egroup%
+      \fi\fi%
+   \fi%
+}
+
+\def\@dia@correction{%
+   \if@correction%
+      \bgroup%
+      \dedicfont\the\correction@tk%
+      \par%
+      \egroup%
+   \fi%
+}
+
+\def\@dia@tournament{%
+   \if@tournament
+      \bgroup%
+      \awardfont%
+      \the\tournament@tk
+      \if@source\else\if@date%
+         \ \ \@dia@date%
+      \fi\fi%
+      \par%
+      \egroup%
+   \fi%
+}
+
+\def\@dia@award{%
+   \if@award%
+      \bgroup%
+      \awardfont\the\award@tk%
+      \par%
+      \egroup%
+   \fi%
+}
+
+\def\@dia@dedic{%
+   \if@dedication%
+      \bgroup%
+      \dedicfont\the\dedic@tk%
+      \par%
+      \egroup%
+   \fi%
+}
+
+\def\@show@album#1/#2;{#1 FIDE-Album #2}
+
+\def\@dia@fidealbum{%
+   \if@fidealbum{%
+      \expandafter\@show@album\the\fidealbum@tk;%
+      \par%
+   }\fi%
+}
+
+\def\@twinskip{\ \ }
+
+\def\@dia@stipulation{%
+   \if@stipulation%
+      \bgroup%
+      \stipfont%
+      \the\stipulation@tk%
+      \ifx@twins%
+         \let\below@newline\@twinskip%
+         \@dia@twins%
+      \else\ifx@cond%
+         \let\below@newline\@twinskip%
+         \@dia@condition%
+      \fi\fi%
+      \egroup%
+      \let\below@newline\newline%
+   \else%
+      \x@twinsfalse%
+      \x@condfalse%
+      \let\below@newline\relax%
+   \fi%
+}
+
+\def\x@write@twin#1; {%
+   \hskip1em#1%
+   \@lefttrue\let\below@newline\newline%
+   \let\@action\write@twins%
+   \l@@klist%
+}
+
+\def\write@twins#1; {%
+   \setbox\@test@box=\hbox{#1\if@left~~\fi}%
+   \ifdim\wd\@test@box>4\sq@width%
+      \below@newline%
+      \@lefttrue%
+      #1%
+   \else%
+      \if@left%
+         \below@newline%
+      \fi%
+      \noindent\hbox to 4\sq@width{#1\hfil}%
+      \if@left%
+         \@leftfalse%
+      \else%
+         \@lefttrue%
+      \fi%
+   \fi%
+   \let\below@newline\newline
+   \l@@klist%
+}
+
+\def\@dia@twins{%
+   \if@twins%
+      \bgroup%
+      \@lefttrue%
+      \remfont%
+      \ifx@twins%
+         \let\@action=\x@write@twin%
+      \else%
+         \let\@action=\write@twins%
+      \fi%
+      \@parseTokenlist\twins@tk;%
+      \egroup%
+      \let\below@newline\newline%
+   \fi%
+}
+
+\def\@dia@condition{%
+   \if@condition%
+      \bgroup%
+      \@lefttrue%
+      \remfont%
+      \ifx@cond%
+         \let\@action=\x@write@twin%
+      \else%
+         \let\@action=\write@twins%
+      \fi%
+      \@parseTokenlist\condition@tk;%
+      \egroup%
+      \let\below@newline\newline%
+   \fi%
+}
+
+\def\@dia@remark{%
+   \if@remark%
+      \bgroup%
+      \@lefttrue%
+      \remfont\let\@action=\write@twins%
+      \@parseTokenlist\remark@tk;%
+      \egroup%
+      \let\below@newline\newline%
+   \fi%
+}
+
+\def\parse@params#1{%
+   \ifcase\help@a\relax
+      \label@tk={#1}\ifx\relax#1\else\@labeltrue\fi\or%
+      \number@tk={#1}\ifx\relax#1\else\@numbertrue\fi\or%
+      \aut@tk={#1}\ifx\relax#1\else\auth@rtrue\fi\or%
+      \city@tk={#1}\ifx\relax#1\else\@citytrue\fi\or%
+      \sourcenr@tk={#1}\ifx\relax#1\else\@sourcenrtrue\fi\or%
+      \source@tk={#1}\ifx\relax#1\else\@sourcetrue\fi\or%
+      \day@tk={#1}\ifx\relax#1\else\@daytrue\fi\or%
+      \from@month=#1\or%
+      \to@month=#1\or%
+      \year@tk={#1}\ifx\relax#1\else\@yeartrue\fi\or%
+      \issue@tk={#1}\ifx\relax#1\else\@issuetrue\fi\or%
+      \pages@tk={#1}\ifx\relax#1\else\@pagestrue\fi\or%
+      \tournament@tk={#1}\ifx\relax#1\else\@tournamenttrue\fi\or%
+      \award@tk={#1}\ifx\relax#1\else\@awardtrue\fi\or%
+      \after@tk={#1}\ifx\relax#1\else\@aftertrue\fi\or%
+      \version@tk={#1}\ifx\relax#1\else\@versiontrue\fi\or%
+      \correction@tk={#1}\ifx\relax#1\else\@correctiontrue\fi\or%
+      \dedic@tk={#1}\ifx\relax#1\else\@dedicationtrue\fi\or%
+      \theme@tk={#1}\ifx\relax#1\else\@themetrue\fi\or%
+      \twins@tk={#1}\ifx\relax#1\else\@twinstrue\fi\or%
+      \computer@tk={#1}\or%
+      \comment@tk={#1}\ifx\relax#1\else\@commenttrue\fi\or%
+      \judgement@tk={#1}\ifx\relax#1\else\@judgementtrue\fi\or%
+      \sol@tk={#1}%
+   \fi%
+   \advance\help@a \@ne%
+   \l@@klist%
+}
+
+\def\split@param#1{%
+   \@labelfalse\@numberfalse\auth@rfalse\@cityfalse%
+   \@sourcenrfalse\@sourcefalse\@dayfalse\@yearfalse%
+   \@issuefalse\@pagesfalse\@tournamentfalse\@awardfalse%
+   \@afterfalse\@versionfalse\@correctionfalse\@dedicationfalse%
+   \@themefalse\@twinsfalse\@commentfalse\@judgementfalse%
+   \help@a=\z@%
+   \let\@action=\parse@params\l@@klist#1\e@list%
+}
+\def\@dia@solution{%
+   \bgroup%
+   \parindent\z@%
+   \parskip\tw@\p@%
+   {\bf
+      \noindent\if@label\showlabel{\the\label@tk}\fi%
+      \the\number@tk) %
+      \ifauth@r%
+         \ifnormal@names%
+            \the\aut@tk%
+         \else%
+            {\@notfirstfalse% We are the first one
+            \def\name@sep{, }%
+            \let\@action=\@writename%
+            \@parseTokenlist\aut@tk;}:%
+         \fi%
+         \par%
+      \fi%
+   }%
+   \if@develop\if@judgement\the\judgement@tk\par\fi\fi%
+   \the\sol@tk\par%
+   \if@comment\the\comment@tk\par\fi%
+   \egroup%
+}
+\grid@width=0.6\p@
+\inner@frame=0.6\p@
+\outer@frame=1.2\p@
+\space@frame=\outer@frame
+\v@frame@dist=\tw@\p@%
+\h@frame@dist=\tw@\p@%
+\space@frame@dist=\z@
+\v@space@dist=1em
+\def\@show@figurine{%
+   \noindent%
+   \@figurine@number%
+   \@figurine@author%
+   \@figurine@city%
+   \@figurine@after%
+   \@figurine@correction%
+   \@figurine@version%
+   \@figurine@source%
+   \@figurine@tournament%
+   \@figurine@award%
+   \@figurine@dedic%
+   \@figurine@pieces%
+   \@figurine@stip%
+   \@figurine@twins%
+   \@figurine@conditions%
+   \@figurine@remarks%
+   \@figurine@computer%
+}
+\def\@figurine@number{{\authorfont\thediag)}}
+
+\def\p@rseauthor@figurine#1,#2; {%
+   \if@notfirst, \else\@notfirsttrue\fi#2 #1%
+   \l@@klist%
+}
+
+\def\@figurine@author{%
+   {\ifauth@r%
+      \authorfont\@notfirstfalse%
+      \let\@action=\p@rseauthor@figurine%
+      \@parseTokenlist\aut@tk;%
+      \ \ %
+   \fi}%
+}
+
+\def\@figurine@city{%
+   {\if@city%
+      \cityfont\@notfirstfalse%
+      \let\@action=\p@rsecity\@parseTokenlist\city@tk;%
+      \ \ \ %
+   \fi}%
+}
+
+\def\@figurine@after{\if@after{\dedicfont\ \ \the\after@tk}\fi}
+
+\def\@figurine@correction{%
+   \if@correction{\dedicfont\ \ \the\correction@tk}\fi%
+}
+
+\def\@figurine@version{%
+   \if@version{\dedicfont\ \ \the\version@tk}\fi%
+}
+
+\def\@figurine@source{%
+   {\if@source%
+      \sourcefont%
+      \if@sourcenr\the\sourcenr@tk\ \fi%
+      \the\source@tk%
+      \if@year%
+         \ \ %
+         \if@day%
+            \ifnum\from@month>\z@%
+               \the\day@tk.%
+               \write@month\from@month%
+               \ifnum\to@month>\z@%
+                  -\write@month\to@month%
+               \fi%
+               .%
+            \fi%
+         \else%
+            \write@month\the\from@month%
+            \ifnum\to@month>\z@%
+               -\write@month\the\to@month%
+            \fi%
+            /%
+         \fi%
+         \the\year@tk%
+      \fi%
+      \if@issue , \the\issue@tk\fi%
+      \if@pages , \the\pages@tk\fi%
+   \fi}%
+}
+
+\def\@figurine@tournament{%
+   \if@tournament{\awardfont\ \ \the\tournament@tk}\fi%
+}
+
+\def\@figurine@award{%
+   \if@award{\awardfont\ \ \the\award@tk}\fi%
+}
+
+\def\@figurine@dedic{%
+   \if@dedication{\awardfont\ \ \the\dedic@tk}\fi%
+}
+\def\show@squares#1\e@list{\ch@fig{\the\help@a}#1, }
+
+\def\@figurine@pieces{%
+   {\if@pieces%
+      \let\@action=\p@rsepieces%
+      \let\piece@job\show@squares%
+      \@parseTokenlist\pieces@tk,%
+   \fi}%
+}
+\def\@figurine@stip{%
+   \if@stipulation{\stipfont\ \ \the\stipulation@tk}\fi%
+}
+
+\def\@figurine@conditions{%
+   \if@condition{\remfont\ \ \the\condition@tk}\fi%
+}
+
+\def\@figurine@twins{%
+   \if@twins{\remfont\ \ \the\twins@tk}\fi%
+}
+
+\def\@figurine@computer{%
+   \if@show@computer
+      \if@computer\ (Co)\fi%
+   \fi%
+}
+
+\def\@figurine@remarks{%
+   \if@remark{\stipfont\ \ \the\remark@tk}\fi%
+}
+\def\do@dia@job{\@write@sol\ifvmode\noindent\fi\unhbox\dia@box}
+\def\solhead#1{{\split@param{#1}\@dia@solution}}
+\def\@write@sol{%
+   \ifs@lu%
+      \immediate\write\s@lfd{%
+         \noexpand\solhead{%
+            {\the\label@tk}%
+            {\thediag}%
+            {\the\aut@tk}%
+            {\the\city@tk}%
+            {\the\sourcenr@tk}%
+            {\the\source@tk}%
+            {\the\day@tk}%
+            {\the\from@month}%
+            {\the\to@month}%
+            {\the\year@tk}%
+            {\the\issue@tk}%
+            {\the\pages@tk}%
+            {\the\tournament@tk}%
+            {\the\award@tk}%
+            {\the\after@tk}%
+            {\the\version@tk}%
+            {\the\correction@tk}%
+            {\the\dedic@tk}%
+            {\the\theme@tk}%
+            {\the\twins@tk}%
+            {\the\computer@tk}%
+            {\the\comment@tk}%
+            {\the\judgement@tk}%
+            {\the\sol@tk}%
+         } %end of \solhead
+      }%
+   \fi
+}
+\def\@months#1-#2;{\from@month=#1\to@month=#2\@datetrue}
+\def\@writename#1; {\sep@names\@dianame#1; \l@@klist}
+\def\name@sep{,\ }
+\def\sep@names{\if@notfirst\name@sep\else\@notfirsttrue\fi}
+\def\@checkshort#1/#2#3;{%
+   \@shortformtrue%
+   \ifx#2\e@list\relax%
+      \@shortformfalse%
+   \fi%
+}
+\def\short@christian#1#2-{%
+   \if@notfirst -\else\@notfirsttrue\fi%
+   #1.%
+   \l@@klist%
+}
+
+\def\@write@christian#1/#2;{#1}
+
+\def\write@christian#1;{%
+   \@checkshort#1/\e@list;%
+   \if@shortform\@write@christian#1;\else#1\fi%
+}
+
+\def\@write@short#1/#2;{#2}
+
+\def\write@short#1;{%
+   \@checkshort#1/\e@list;%
+   \if@shortform%
+      \@write@short#1;%
+   \else%
+      {\@notfirstfalse\let\@action\short@christian\l@@klist#1-\e@list}%
+   \fi%
+}
+\def\@fullname#1, #2; {\hbox{\write@christian#2; #1}}
+\def\@sirname#1, #2; {#1}
+\def\@short#1, #2; {\write@short#2;\ #1}
+\def\@noname#1, #2; {}
+\def\@normalname#1; {#1}
+\def\space@vertical{\space@verticaltrue}
+\def\space@horizontal{\space@verticalfalse}
+\def\cl@arsol{\immediate\openout\s@lfd=\jobname.sol}
+\def\getc@lor#1{%
+   \if#1\ds@white%
+     \help@a\z@\global%
+     \let\cpd@stepcounterPieces\cpd@stepcounterWhite%
+   \else\if#1\ds@neutral%
+     \help@a=6\global%
+     \let\cpd@stepcounterPieces\cpd@stepcounterNeutral%
+   \else\if#1\ds@black%
+     \help@a=12\global%
+     \let\cpd@stepcounterPieces\cpd@stepcounterBlack%
+   \else\errmessage{invalid color!}%
+   \fi\fi\fi%
+   \getpi@ce%
+}
+
+\def\get@text#1{\text@tk={#1}\read@square}
+
+\def\getpi@ce#1{\if#1B\relax\else
+   \if#1\ds@knight\advance\help@a\@ne%
+   \else\if#1\ds@bishop\advance\help@a\tw@%
+   \else\if#1\ds@rook\advance\help@a\thr@@%
+   \else\if#1\ds@queen\advance\help@a\f@ur%
+   \else\if#1\ds@king\advance\help@a 5%
+   \else\if#1C%
+      % An imitator should not count for any color.
+      \let\cpd@stepcounterPieces\relax
+      \advance\help@a 145%
+   \else%
+      \errmessage{invalid piece!}%
+   \fi\fi\fi\fi\fi\fi\fi%
+   \futurelet\r@tate\chkr@tate%
+}
+
+\def\chkr@tate{%
+   \if\r@tate \ds@upsidedown\advance\help@a 108\let\nextpr@c=\skipr@t\else
+   \if\r@tate \ds@left\advance\help@a 36\let\nextpr@c=\skipr@t\else
+   \if\r@tate \ds@right\advance\help@a 72\let\nextpr@c=\skipr@t\else
+   \let\nextpr@c\piece@job\fi\fi\fi\nextpr@c%
+}
+\def\skipr@t#1{\piece@job}
+\def\l@@k{\futurelet\whatsnext\parsefi@lds}
+\def\parsefi@lds{%
+   \if\whatsnext\e@list%
+      \let\nextpr@c\relax%
+   \else
+      \let\nextpr@c\read@square%
+   \fi%
+   \nextpr@c%
+}
+
+\def\set@current@square@index#1#2{%
+  \setcounter{cpd@current@square@index}{#1+\value{cpd@linesmax}*#2}%
+}
+\def\set@current@square@value#1{%
+  \expandafter%
+    \xdef\csname cpd@square@\roman{cpd@current@square@index}\endcsname{#1}%
+}
+\def\get@current@square@value{%
+  \setcounter{cpd@current@square@value}%
+    {\csname cpd@square@\roman{cpd@current@square@index}\endcsname}%
+}
+\def\set@piece{%
+   \ifnum\pl@ne=\current@plane%
+      \cpd@stepcounterPieces%
+      \set@current@square@index\lin@\r@w%
+      \get@current@square@value%
+      \ifthenelse{\value{cpd@current@square@value}=\m@ne}
+        {\set@current@square@value{\the\help@a}}%
+        {\ifthenelse{\value{cpd@current@square@value}=144}%
+          {\set@current@square@value{\the\help@a+18}}%
+          {\errmessage{Trying to set a piece to an occupied square}}}%
+   \fi%
+   \l@@k%
+}
+\def\set@nofield, {%
+   \ifnum\pl@ne=\current@plane%
+      \set@current@square@index\lin@\r@w%
+      \get@current@square@value%
+      \ifthenelse{\value{cpd@current@square@value}=\m@ne}%
+        {}% This is an empty white square, nothing to do
+        {\ifthenelse{\value{cpd@current@square@value}=144}%
+          {\set@current@square@value{\m@ne}}%
+          {\errmessage{Trying to set a piece to an occupied square}}}%
+   \fi%
+   \l@@klist%
+}
+\def\set@frame, {%
+   \ifnum\pl@ne=\current@plane%
+      \@vGrid{\the\lin@}{\the\r@w}\@ne%
+      \@hGrid{\the\lin@}{\the\r@w}\@ne%
+      \advance\lin@\@ne%
+      \@vGrid{\the\lin@}{\the\r@w}\@ne%
+      \advance\lin@\m@ne\advance\r@w\@ne%
+      \@hGrid{\the\lin@}{\the\r@w}\@ne%
+   \fi%
+   \l@@klist%
+}
+\def\e@list{\relax}
+\def\l@@klist{\futurelet\nextlist\ch@cklst}
+\def\ch@cklst{%
+   \ifx\nextlist\e@list%
+      \let\nextpr@c=\relax%
+   \else%
+      \let\nextpr@c=\@action%
+   \fi%
+   \nextpr@c%
+}
+\def\p@rsepieces#1, {\getc@lor#1\e@list\l@@klist}
+\def\p@rsetext#1, {\get@text#1\e@list\l@@klist}
+\def\set@text{%
+   \ifnum\pl@ne=\current@plane%
+      \raise\r@w\sq@width\hbox to \z@{%
+         \hskip\lin@\sq@width%
+         \vbox to \sq@width{\vss%
+         \hbox to \sq@width{%
+           \hss%
+           {\the\text@tk}%
+           \hss%
+         }\vss}%
+         \hss%
+      }%
+   \fi%
+   \l@@klist%
+}
+\def\p@rseauthor#1; {\sh@wauthor#1;\l@@klist}
+\def\read@square#1#2{%
+   \lin@=`#1\advance\lin@ by -`a\relax%
+   \r@w=#2\advance\r@w by \m@ne%
+   \read@plane%
+}
+\def\read@plane@normal{\plane@job}
+
+\def\read@plane@stereo{\futurelet\plane@char\get@plane@stereo}
+
+\def\get@plane@stereo{%
+   \if\plane@char A%
+      \pl@ne=\@ne\advance\r@w-\tw@\advance\lin@-\tw@%
+      \let\@plane@job=\skip@plane%
+   \else\if\plane@char B%
+      \pl@ne=\tw@\advance\r@w-\tw@\advance\lin@-\tw@%
+      \let\@plane@job=\skip@plane%
+   \else\if\plane@char C%
+      \pl@ne=\thr@@\advance\r@w-\tw@\advance\lin@-\tw@%
+      \let\@plane@job=\skip@plane%
+   \else\if\plane@char D%
+      \pl@ne=\f@ur\advance\r@w-\tw@\advance\lin@-\tw@%
+      \let\@plane@job=\skip@plane%
+   \else%
+      \pl@ne=\z@\let\@plane@job=\plane@job%
+   \fi\fi\fi\fi%
+   \@plane@job%
+}
+
+\def\skip@plane#1{\plane@job}
+
+\def\read@plane@space#1{\pl@ne=`#1\advance\pl@ne by -`A\relax\plane@job}
+\def\@vGrid#1#2#3{%
+   \raise#2\sq@width\hbox to \z@{%
+      \hskip#1\sq@width\hskip-.5\grid@width%
+      \vrule height#3\sq@width width\grid@width\hss%
+   }%
+}
+
+\def\@hGrid#1#2#3{%
+   \raise#2\sq@width\hbox to \z@{%
+      \hskip#1\sq@width%
+      \vrule width#3\sq@width height .5\grid@width depth%
+      .5\grid@width\hss%
+   }%
+}
+\def\@selGrid#1#2, {%
+   \ifnum\pl@ne=\current@plane%
+      \if#1h%
+         \@hGrid#2%
+      \else\if#1v%
+         \@vGrid#2%
+      \else%
+         \errmessage{Wrong GridSelector #1}%
+      \fi\fi%
+   \fi%
+   \l@@klist%
+}
+\def\@stdgrid{%
+   \setbox\plane@box=\vbox{\hbox{%
+      \help@a=\tw@%
+      \loop%
+         \ifnum\help@a<\lines@max%
+         \@vGrid{\the\help@a}{0}{\the\rows@max}%
+         \advance\help@a\tw@%
+      \repeat%
+      \help@a=\tw@%
+      \loop%
+         \ifnum\help@a<\rows@max%
+            \@hGrid{0}{\the\help@a}{\the\lines@max}%
+            \advance\help@a\tw@%
+      \repeat%
+      \box\plane@box
+   }}%
+}
+\def\ds@xlabel#1{%
+   \label@tk={#1}\@labeltrue%
+}
+
+\def\@set@label#1;{\ifds@label\label{#1}\fi}
+\def\init@vars{%
+   \global\s@lufalse
+   \setboolean{cpd@checkPieceCounts}{false}%
+   \setcounter{cpd@defWhitePieces}{\z@}%
+   \setcounter{cpd@defBlackPieces}{\z@}%
+   \setcounter{cpd@defNeutralPieces}{\z@}%
+   \setcounter{cpd@whitePieces}{\z@}%
+   \setcounter{cpd@blackPieces}{\z@}%
+   \setcounter{cpd@neutralPieces}{\z@}%
+   \lin@\z@
+}
+
+\def\clear@board{%
+   % Now the new style
+   \setcounter{cpd@current@row}{0}%
+   \whiledo{\value{cpd@current@row}<\value{cpd@rowsmax}}{%
+      \setcounter{cpd@current@line}{0}%
+      \whiledo{\value{cpd@current@line}<\value{cpd@linesmax}}{%
+         \set@current@square@index{\value{cpd@current@line}}{\value{cpd@current@row}}%
+         \setcounter{cpd@helper}{\the\current@plane+\value{cpd@current@line}+\value{cpd@current@row}}%
+         \ifthenelse{\isodd{\value{cpd@helper}}}%
+           {\set@current@square@value{-1}}%
+           {\set@current@square@value{144}}%
+        \addtocounter{cpd@current@line}{\@ne}%
+      }%
+      \addtocounter{cpd@current@row}{\@ne}%
+   }%
+}
+
+\def\put@row#1{%
+   \lin@\z@%
+   \help@b=#1%
+   \advance\help@b\brd@ff%
+   \hbox{%
+      \if@stereo%
+         \ifnum\current@plane>\z@%
+            \ifnum\@rows=12%
+               \llap{\raise .5\sq@width\hbox{\boardfont c6\ }}%
+            \fi%
+         \fi%
+      \fi%
+      \hbox to \z@{\vbox to \sq@width{}}%
+      \set@current@square@index{\lin@}{#1}%
+      \loop%
+         \get@current@square@value%
+         \ifthenelse{\value{cpd@current@square@value}=\m@ne}%
+          {\wF}%
+          {\char\value{cpd@current@square@value}}%
+         % \ifnum\count\help@b=\m@ne\wF%
+         % \else\char\count\help@b\fi%
+         \advance\lin@\@ne%
+         \addtocounter{cpd@current@square@index}{1}%
+         % \advance\help@b\@ne%
+      \ifnum\lin@<\lines@max\repeat%
+   }%
+}
+\def\put@line#1{%
+   \lin@\z@%
+   \help@b=#1%
+   \advance\help@b\brd@ff%
+   \hbox{%
+      \if@stereo%
+         \ifnum\current@plane>\z@%
+            \ifnum\@rows=12%
+               \llap{\raise .5\sq@width\hbox{\boardfont c6\ }}%
+            \fi%
+         \fi%
+      \fi%
+      \hbox to \z@{\vbox to \sq@width{}}%
+      \loop%
+         \ifnum\count\help@b=\m@ne\wF%
+         \else\char\count\help@b\fi%
+         \advance\lin@\@ne\advance\help@b\@ne%
+      \ifnum\lin@<\lines@max\repeat%
+   }%
+}
+\def\@parseTokenlist#1#2{\expandafter\l@@klist\the#1#2 \e@list}
+\def\@addToPlane#1{%
+   \setbox\plane@box=\vbox{\hbox{%
+      \@parseTokenlist#1,%
+      \box\plane@box%
+   }}%
+}
+\def\put@plane{%
+   % We might want gridchess
+     \if@stdgrid%
+        \@stdgrid%
+     \fi%
+   % Let us first set the fieldframes
+   \if@fieldframe%
+      \let\@action\read@square%
+      \let\plane@job\set@frame%
+      \@addToPlane\fieldframe@tk%
+   \fi%
+   % Now we set text to all squares which are given using \fieldtext
+   \if@fieldtext%
+      \let\@action\p@rsetext%
+      \let\plane@job\set@text%
+      \@addToPlane\fieldtext@tk%
+   \fi%
+   % Then we should add the gridlines
+   \if@gridlines%
+      \let\@action\read@plane%
+      \let\plane@job\@selGrid%
+      \@addToPlane\gridlines@tk%
+   \else%
+      \if@stereo%
+        \stereo@center%
+     \fi%
+   \fi%
+   % Now we should clear the board
+   \clear@board%
+   % Let us now parse the list of pieces
+   \if@pieces%
+      \let\@action\p@rsepieces%
+      \let\piece@job\l@@k\let\plane@job\set@piece%
+      \@parseTokenlist\pieces@tk,%
+   \fi%
+   % Now we clear all fields, which are given using \nofields
+   \if@nofields%
+      \let\@action\read@square%
+      \let\plane@job\set@nofield%
+      \@parseTokenlist\nofields@tk,%
+   \fi%
+   % Now we can put the pieces to the board
+   \global\setbox\plane@box=\hbox{%
+      \vbox{\rlap{\box\plane@box}}%
+      \vbox{%
+         \chessfont%
+         \baselineskip=\z@\lineskip=\z@%
+         \@rows=\rows@max%
+         % \multiply\@rows by \lines@max%
+         \loop%
+            % \advance\@rows -\lines@max%
+            % \put@line\@rows%
+            % Remove \put@line in future versions
+            \advance\@rows \m@ne%
+            \put@row\@rows%
+         \ifnum\@rows>\z@\repeat%
+      }%
+   }%
+}
+\def\put@sqs@normal{%
+   \put@plane%
+   \setbox\sq@box=\hbox{%
+      \inner@henbox{\box\plane@box}%
+   }%
+}
+\def\put@sqs@stereo{%
+   \setbox\sq@box=\hbox{\hfil\vbox{%
+      \current@plane=5%
+      \vskip\v@space@dist%
+      \loop%
+         \advance\current@plane\m@ne%
+         \ifnum\current@plane=\z@%
+            \lines@max=\@ight%
+            \rows@max=\@ight%
+         \else%
+            \lines@max=\f@ur%
+            \rows@max=\f@ur%
+         \fi%
+         % Now we should clear the board
+         \begingroup% We need this for inner loops!
+            \clear@board%
+            \put@plane%
+         \endgroup%
+         \hbox to \bd@width{%
+            \hfil%
+            \inner@henbox{\box\plane@box}%
+            \ifcase\current@plane\or%
+               \rlap{{\boardfont\ A}}\or%
+               \rlap{{\boardfont\ B}}\or%
+               \rlap{{\boardfont\ C}}\or%
+               \rlap{{\boardfont\ D}}%
+            \fi%
+            \hfil%
+         }%
+         \vskip\v@space@dist%
+      \ifnum\z@<\current@plane\repeat%
+   }\hfil}%
+}
+
+\def\stereo@center{%
+   \ifnum\current@plane=\z@%
+      \setbox\plane@box=\vbox{\hbox{%
+         \@hGrid\tw@\tw@\f@ur\@hGrid\tw@ 6\f@ur%
+         \@vGrid\tw@\tw@\f@ur\@vGrid6\tw@\f@ur%
+         \box\plane@box%
+      }}%
+   \fi%
+}
+\def\put@sqs@space@vertical{%
+   \setbox\sq@box=\hbox{\hfil\vbox{%
+      \current@plane=\planes@max%
+      \vskip\v@space@dist%
+      \loop%
+         \advance\current@plane\m@ne%
+         % Now we should clear the board
+         \begingroup% We use inner loops!
+         \clear@board%
+         \put@plane%
+         \hbox to \bd@width{%
+            \inner@henbox{\box\plane@box}%
+            \advance\current@plane`A%
+            \rlap{{\boardfont\ \char\current@plane}}%
+         }%
+         \endgroup%
+         \vskip\v@space@dist%
+      \ifnum\z@<\current@plane\repeat%
+   }\hfil}%
+}
+
+\def\put@sqs@space@horizontal{%
+   \setbox\sq@box=\hbox{%
+      \current@plane=\z@%
+      \hskip\h@space@dist%
+      \loop%
+         % Now we should clear the board
+         \begingroup% We use inner loops!
+         \clear@board%
+         \put@plane%
+         \hbox to \bd@width{%
+            \inner@henbox{\box\plane@box}%
+            \advance\current@plane`A%
+            \rlap{{\boardfont\ \char\current@plane}}%
+         }%
+         \endgroup%
+         \hskip\h@space@dist%
+         \advance\current@plane\@ne%
+      \ifnum\planes@max>\current@plane%
+      \repeat%
+   }%
+}
+
+\def\put@sqs@space{%
+   \ifspace@vertical%
+      \put@sqs@space@vertical%
+   \else%
+      \put@sqs@space@horizontal%
+   \fi%
+}
+\def\@inner@vframe{%
+   \if@vframe%
+      \vrule width \inner@frame%
+   \else%
+      \hskip\inner@frame%
+   \fi%
+}
+
+\def\@inner@hframe{%
+   \if@hframe%
+      \hrule height \inner@frame%
+   \else%
+      \vskip\inner@frame%
+   \fi%
+}
+\def\inner@v@frame@rule{%
+   \if@stereo%
+      \@inner@vframe%
+   \else\if@space%
+      \@inner@vframe%
+   \else\if@leaveOuter%
+      \vrule width \inner@frame%
+   \else%
+      \@inner@vframe%
+   \fi\fi\fi%
+}
+
+\def\inner@h@frame@rule{%
+   \if@stereo%
+      \@inner@hframe%
+   \else\if@space%
+      \@inner@hframe%
+   \else\if@leaveOuter%
+      \hrule height \inner@frame%
+   \else%
+      \@inner@hframe%
+   \fi\fi\fi%
+}
+
+\def\inner@henbox#1{%
+   \hbox{%
+      \inner@v@frame@rule%
+      \vbox{\inner@h@frame@rule#1\inner@h@frame@rule}%
+      \inner@v@frame@rule%
+   }%
+}
+\def\@outer@vrule{\vrule width \outer@frame}
+
+\def\@outer@hrule{\hrule height \outer@frame}
+\def\outer@v@frame@rule{%
+   \if@stereo%
+      \@outer@vrule%
+   \else\if@space%
+      \@outer@vrule%
+   \else\if@leaveOuter%
+      \if@vframe\@outer@vrule\else\hskip\outer@frame\fi%
+   \else%
+      \@outer@vrule%
+   \fi\fi\fi%
+}
+
+\def\outer@h@frame@rule{%
+   \if@stereo%
+      \@outer@hrule%
+   \else\if@space%
+      \@outer@hrule%
+   \else\if@leaveOuter%
+      \if@hframe\@outer@hrule\else\vskip\outer@frame\fi%
+   \else%
+      \@outer@hrule%
+   \fi\fi\fi%
+}
+
+\def\outer@henbox#1{%
+   \outer@h@frame@rule%
+   \hbox{%
+      \outer@v@frame@rule%
+      \ifspace@vertical%
+         \hskip\h@frame@dist%
+      \fi%
+      \vbox{%
+         \ifspace@vertical%
+            \vskip\v@frame@dist%
+         \else%
+            \vskip\v@space@dist%
+         \fi%
+         #1%
+         \ifspace@vertical%
+            \vskip\v@frame@dist%
+         \else%
+            \vskip\v@space@dist%
+         \fi%
+      }%
+      \ifspace@vertical%
+         \hskip\h@frame@dist%
+      \fi%
+      \outer@v@frame@rule%
+   }%
+   \outer@h@frame@rule%
+}
+\def\ch@fig#1{%
+   \ifvmode\noindent\fi%
+   \hbox{\chtextfont\lower.3\fontdimen\tw@\chtextfont\hbox{\char#1}}%
+}
+\def\@dia@index{%
+   \@ifundefined{newindex}%
+   {\errmessage{You should add documentstyle-option 'index'}}{}%
+}
+
+\def\showlabel#1{%
+   \if@develop%
+      \raise1ex\hbox{\labelfont#1}\penalty\exhyphenpenalty%
+   \fi%
+}
+
+\def\@aidxitem#1, #2, #3{%
+   \par\medskip#1, \write@christian#2; \dotfill #3%
+}
+
+\def\dia@index#1\@sep#2[#3]{\index[#3]{#2|showlabel{#1}}}
+
+\def\parse@aindex#1; {%
+   \expandafter\dia@index\the\label@tk\@sep#1[author]\l@@klist%
+}
+
+\def\@aindex{%
+   \if@aindex%
+      \ifnormal@names%
+         \errmessage{Cannot create index entries with normalnames}%
+      \else\ifauth@r%
+         \let\@action=\parse@aindex\@parseTokenlist\aut@tk;%
+      \fi\fi%
+   \fi%
+}
+
+\def\x@sindex#1\@sep{\expandafter\dia@index\the\label@tk\@sep#1[source]}
+
+\def\@sindex{%
+   \if@sindex\if@source%
+      \expandafter\x@sindex\the\source@tk\@sep%
+   \fi\fi%
+}
+
+\def\parse@tindex#1, {%
+   \expandafter\dia@index\the\label@tk\@sep#1[theme]\l@@klist%
+}
+
+\def\@tindex{%
+   \if@tindex\if@theme%
+      \let\@action=\parse@tindex\@parseTokenlist\theme@tk,%
+   \fi\fi%
+}
+\def\@setPieceColor#1#2#3{%
+   \gdef\ds@white{#1}\gdef\ds@black{#2}\gdef\ds@neutral{#3}%
+}
+
+\def\@setPieceSpec#1#2#3#4#5#6{%
+   \gdef\ds@king{#1}\gdef\ds@queen{#2}\gdef\ds@rook{#3}%
+   \gdef\ds@bishop{#4}\gdef\ds@knight{#5}\gdef\ds@pawn{#6}%
+}
+
+\def\@setPieceRotation#1#2#3{%
+   \gdef\ds@left{#1}\gdef\ds@right{#2}\gdef\ds@upsidedown{#3}%
+}
+\def\loop@rotation{%
+   \bgroup%
+      \n@cnt\z@%
+      \help@a\z@%
+      \loop%
+         \ifcase\n@cnt%
+            \def\@theRotation{}%
+         \or%
+            \def\@theRotation{\ds@left}%
+         \or%
+            \def\@theRotation{\ds@right}%
+         \or%
+            \def\@theRotation{\ds@upsidedown}%
+         \fi%
+         \loop@color%
+         \advance\n@cnt\@ne%
+         \advance\help@a by 36\relax%
+      \ifnum\n@cnt<\f@ur\repeat%
+   \egroup%
+}
+
+\def\loop@color{%
+   \bgroup%
+      \w@cnt\z@%
+      \loop%
+         \ifcase\w@cnt%
+            \def\@theColor{\ds@white}%
+         \or%
+            \def\@theColor{\ds@neutral}%
+         \or%
+            \def\@theColor{\ds@black}%
+         \fi%
+         \loop@piece%
+         \advance\w@cnt\@ne%
+         \advance\help@a by 6%
+      \ifnum\w@cnt<\thr@@\repeat%
+   \egroup%
+}
+
+\def\loop@piece{%
+   \bgroup%
+      \b@cnt\z@%
+      \loop%
+         \ifcase\b@cnt%
+            \def\@thePiece{\ds@pawn}%
+         \or%
+            \def\@thePiece{\ds@knight}%
+         \or%
+            \def\@thePiece{\ds@bishop}%
+         \or%
+            \def\@thePiece{\ds@rook}%
+         \or%
+            \def\@thePiece{\ds@queen}%
+         \or%
+            \def\@thePiece{\ds@king}%
+         \fi%
+         \expandafter\xdef\csname
+         \@theColor\@thePiece\@theRotation\endcsname{%
+            \noexpand\ch@fig{\the\help@a}%
+         }
+         \advance\b@cnt\@ne%
+         \advance\help@a by \@ne%
+      \ifnum\b@cnt<6\repeat%
+   \egroup%
+}
+\elchfont\@fselch
+
+\defaultelchfont%
+\diagnum{\@ne}
+%% \figcnttrue
+\setboolean{piececounter}{true}
+\def\@dianame{\@fullname}
+\def\@solname{\@fullname}
+\space@verticaltrue
+\diagnumbering{arabic}
+\def\write@month{\@arabic}%
+\diagleft
+\cl@arsol
+\let\orig@author=\author
+\let\orig@day=\day
+\let\orig@month=\month
+\let\orig@year=\year
+\let\orig@label=\label
+\DefinePieces{wsn}{KDTLSB}{LRU}
+\newdimen\normalboardwidth
+\def\setboardwidth{%
+   \normalboardwidth=\@ight\fontdimen\tw@\chessfont%
+   \advance\normalboardwidth\tw@\inner@frame
+   \advance\normalboardwidth\tw@\h@frame@dist
+   \advance\normalboardwidth\tw@\outer@frame
+}
+
+\setboardwidth
+
+\endinput
+%%
+%% End of file `diagram.sty'.