chess-problem-diagrams

git-svn-id: svn://tug.org/texlive/trunk@23555 c570f23f-e606-0410-a88d-b1316a301751

5 files changed, 207 insertions, 126 deletions

diff --git a/Master/texmf-dist/doc/latex/chess-problem-diagrams/README b/Master/texmf-dist/doc/latex/chess-problem-diagrams/README
index 7d0b098a2be..c709cd74317 100644
--- a/Master/texmf-dist/doc/latex/chess-problem-diagrams/README
+++ b/Master/texmf-dist/doc/latex/chess-problem-diagrams/README
@@ -1,15 +1,5 @@
-%% 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.
-
 diagram --- A package for typesetting chessproblems
-Version 1.5 / Stefan Hoening 2008
+Version 1.5.4 / Stefan Hoening 2010
 
 CONTENTS
 
@@ -17,14 +7,13 @@ CONTENTS
 -   diagram.dtx
 -   diagram.ins
 -   diagram.pdf
--   fonts.zip
 
 The font sources by Elmar Bartel are published under conditions of the 
 GNU General Public License.
 
 INSTALLATION
 
-Install the fonts provided as metafont sources into your
+Install the fonts package (bartel-chess-fonts) into your
 tex installation.
 
 Run TeX/LaTeX on diagram.ins to unpack the dtx.
@@ -42,6 +31,8 @@ fairy chess problems (mostly using rotated images of pieces) and other boards.
 
 REQUIREMENTS
 
-The macro package uses tex fonts provided within the fonts.zip archive.
+The macro package uses tex fonts provided by the
+  bartel-chess-fonts
+package as provided on CTAN or under the same name in TeX Live. 
 You need to install these fonts before you can use the package.
 
diff --git a/Master/texmf-dist/doc/latex/chess-problem-diagrams/diagram.pdf b/Master/texmf-dist/doc/latex/chess-problem-diagrams/diagram.pdf
index d75c00955bd..8424944c9cf 100644
--- a/Master/texmf-dist/doc/latex/chess-problem-diagrams/diagram.pdf
+++ b/Master/texmf-dist/doc/latex/chess-problem-diagrams/diagram.pdf
diff --git a/Master/texmf-dist/doc/latex/chess-problem-diagrams/fonts.zip b/Master/texmf-dist/doc/latex/chess-problem-diagrams/fonts.zip
deleted file mode 100644
index c8aa7454ca3..00000000000
--- a/Master/texmf-dist/doc/latex/chess-problem-diagrams/fonts.zip
+++ /dev/null
diff --git a/Master/texmf-dist/source/latex/chess-problem-diagrams/diagram.dtx b/Master/texmf-dist/source/latex/chess-problem-diagrams/diagram.dtx
index a55dea75b74..9036582e0fa 100644
--- a/Master/texmf-dist/source/latex/chess-problem-diagrams/diagram.dtx
+++ b/Master/texmf-dist/source/latex/chess-problem-diagrams/diagram.dtx
@@ -13,9 +13,9 @@
 %%
 %%
 % \fi
-% \def\fileversion{1.5}
-% \def\docdate{2008/03/09}
-% \CheckSum{3968}
+% \def\fileversion{1.5.4}
+% \def\docdate{2011/06/04}
+% \CheckSum{4022}
 % \changes{v0.1}{15 Februar 2004}{First Version}
 % \changes{v0.2}{23 Februar 2004}{Added the documentation for the
 % {\itshape information collecting} macros which may be used
@@ -29,6 +29,21 @@
 % piececount.}
 % \changes{v1.5}{09 March 2008}{Added license meta-comment to
 % publish package on ctan.}
+% \changes{v1.5.1}{08 Jun 2010}{Fixed font problem when writing
+% producing piececounter in small diagrams.}
+% \changes{v1.5.2}{13 Jun 2010}{Added some percent signs at line
+% ends in @start@diagram and enddiagam to avoid accidently added
+% spaces.}
+% \changes{v1.5.3}{04 Oct 2010}{Changed switch, which is used to
+% decide, whether infomration about computer proof is displayed
+% to use standard boolean syntax. Symbols about computer
+% proof are now created by standard commands and may
+% therefore be changed by users.}
+% \changes{v1.5.4}{03 Jun 2011}{Defined 2 different versions of
+% @writename command, to be able to change it in other
+% stylefiles for the part over the diagram without influencing
+% the one used for the solution. Added commands to set white,
+% black and neutral Circles within text.}
 %
 % \DoNotIndex{\@arabic,\def,\@idxitem,\@ifnextchar,\@ifstar,
 % \@ne,\@ptsize,\ ,\advance,\AtEndOfPackage,\begin,\begingroup,
@@ -283,7 +298,7 @@
 % horizontalcylindric board.
 % \item \DescribeMacro{\noframe}
 % does completely suppress the outer frame e.\,g.\ to symbolize a
-% thorus board.
+% torus board.
 % \item \DescribeMacro{\noinnerframe}
 % sometimes you need to suppress the inner frame instead of the
 % outer frame which is achieved by using |\noinnerframe|. You may
@@ -372,11 +387,27 @@
 % number of pieces is displayed below the board. So you may
 % change its value using |\setboolean{piececounter}{true}| or
 % |\setboolean{piececounter}{false}|.
-% \item \DescribeMacro{\nocomputer}
-% is used to suppress the display whether a problem has been
-% computerproved or not.
+% \item
+% \DescribeMacro{showcomputer}
+% \DescribeMacro{\nocomputer}\DescribeMacro{\showcomputer}
+% There is a boolean value |computer|, which controls whether the
+% infomration about a computer proof is displayed or not.  This
+% value may be changed using |\setboolean{showcomputer}{true}| or
+% |\setboolean{showcomputer}{false}| For backwards compatiblity
+% we support the macros |\nocomputer| and |\showcomputer|.
 % \end{itemize}
 %
+% \DescribeMacro{\notcomputerproofedsymbol}
+% \DescribeMacro{\computerproofedsymbol}
+% You may specify the text, which is used indicate, whether a
+% problem is proofed by a computer. To specifiy the symbol for a
+% problem, which is proofed, is created by
+% |\computerproofedsymbol|.  To specifiy the symbol for a
+% problem, which is not computer proofed, is created by
+% |\notcomputerproofedsymbol|. You may redefine these commands by
+% standard \LaTeX\ means (|\renewcommand|).
+
+%
 % \DescribeMacro{\selectelchfont}
 % You may specify which font is used for the chesspieces. There
 % are two possible fonts:
@@ -643,18 +674,33 @@
 % \item[\wNr]
 % \DescribeMacro{\wNr}
 % a white nightrider
+% \item[\nNr]
+% \DescribeMacro{\nNr}
+% a neutral nightrider
 % \item[\sNr]
 % \DescribeMacro{\sNr}
 % a black nightrider
 % \item[\wGh]
 % \DescribeMacro{\wGh}
 % a white grashopper
+% \item[\nGh]
+% \DescribeMacro{\nGh}
+% a neutral grashopper
 % \item[\sGh]
 % \DescribeMacro{\sGh}
 % a black grashopper
 % \item[\Imi]
 % \DescribeMacro{\Imi}
-% an imitator
+% an imitator, you may also use the {\bfseries Circle} notation:
+% \item[\wC]
+% \DescribeMacro{\wC}
+% a white circle
+% \item[\nC]
+% \DescribeMacro{\nC}
+% a neutral circle
+% \item[\sC]
+% \DescribeMacro{\sC}
+% a black circle
 % \end{description}
 % \subsubsection{Other often used symbols}
 % The style also defines commands for other symbols, which are
@@ -797,7 +843,7 @@
 % Specifies the preamble of our style file.
 %    \begin{macrocode}
 %<*style>
-\ProvidesPackage{diagram}[2008/03/09]
+\ProvidesPackage{diagram}[2011/06/04]
 \DeclareOption{10pt}{\AtBeginDocument{\diagramx}}
 \DeclareOption{11pt}{\AtBeginDocument{\diagramxi}}
 \DeclareOption{12pt}{\AtBeginDocument{\diagramxii}}
@@ -979,7 +1025,10 @@
 \newif\if@gridlines\@gridlinesfalse
 \newif\if@fieldframe\@fieldframefalse
 \newif\if@stdgrid\@stdgridfalse
-\newif\if@show@computer\@show@computertrue
+\newboolean{showcomputer}\setboolean{showcomputer}{true}%
+\newcommand*{\computerproofedsymbol}{C+}
+\newcommand*{\notcomputerproofedsymbol}{C-}
+% \newif\if@show@computer\@show@computertrue
 \newif\if@stipulation\@stipulationfalse
 \newif\if@condition\@conditionfalse
 \newif\if@remark\@remarkfalse
@@ -1084,12 +1133,12 @@
    \@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
+   \init@vars%
+   \let\author=\ds@author%
+   \let\day=\ds@day%
+   \let\month=\ds@month%
+   \let\year=\ds@year%
+   \let\label=\ds@label%
    \ignorespaces%
 }
 
@@ -1100,11 +1149,11 @@
 }
 
 \def\enddiagram{%
-   \let\author=\orig@author
-\let\day=\orig@day
-\let\month=\orig@month
-\let\year=\orig@year
-\let\label=\orig@label
+   \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
@@ -1138,8 +1187,8 @@
       \ifdim\space@frame>\outer@frame%
          \outer@frame=\space@frame%
       \fi%
-      \advance\bd@width\tw@\inner@frame
-      \advance\board@width\tw@\inner@frame
+      \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%
@@ -1155,8 +1204,8 @@
       \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\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%
@@ -1260,13 +1309,16 @@
 
 \def\put@count{%
    % First we build the box with the figure count
-   \ifthenelse{\boolean{piececounter}}{%
+   \ifthenelse{\boolean{showcomputer}\OR\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}}{})%
+        \stipfont%
+        \ifthenelse{\boolean{showcomputer}}{%
+           \ \ \if@computer\computerproofedsymbol\else\notcomputerproofedsymbol\fi%
+        }{}%
+        \ifthenelse{\boolean{piececounter}}{%
+            \ \ (\arabic{cpd@whitePieces}+\arabic{cpd@blackPieces}%
+            \ifthenelse{\value{cpd@neutralPieces}>0}{+\arabic{cpd@neutralPieces}}{})%
+        }{}%
       }%
       \@cnt@wd=\wd\@cnt@box%
       \hangindent-\@cnt@wd%
@@ -1281,21 +1333,21 @@
 \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
+   \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
+   \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
@@ -1729,11 +1781,11 @@
    \ignorespaces%
 }
 \def\showcomputer{%
-   \@show@computertrue%
+   \setboolean{showcomputer}{true}%
    \ignorespaces%
 }
 \def\nocomputer{%
-   \@show@computerfalse%
+   \setboolean{showcomputer}{false}%
    \ignorespaces%
 }
 \def\putsol{\immediate\closeout\s@lfd\input\jobname.sol\cl@arsol}
@@ -1776,15 +1828,30 @@
    \expandafter\xdef\csname\ds@white Nr\endcsname{%
       \noexpand\ch@fig{109}%
    }%
+   \expandafter\xdef\csname\ds@neutral Nr\endcsname{%
+      \noexpand\ch@fig{115}%
+   }%
    \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@neutral Gh\endcsname{%
+      \noexpand\ch@fig{118}%
+   }%
    \expandafter\xdef\csname\ds@black Gh\endcsname{%
       \noexpand\ch@fig{124}%
    }%
+   \expandafter\xdef\csname\ds@white C\endcsname{%
+      \noexpand\ch@fig{145}%
+   }%
+   \expandafter\xdef\csname\ds@neutral C\endcsname{%
+      \noexpand\ch@fig{151}%
+   }%
+   \expandafter\xdef\csname\ds@black C\endcsname{%
+      \noexpand\ch@fig{157}%
+   }%
 }
 \def\Imi{\ch@fig{157}}
 %    \end{macrocode}
@@ -1864,7 +1931,7 @@
       \else%
          {\def\name@sep{\par}%
          \@notfirstfalse%
-         \let\@action=\@writename% Parse the list of authors
+         \let\@action=\@dia@writename% Parse the list of authors
        \@parseTokenlist\aut@tk;}
       \fi%
       \egroup%
@@ -2035,7 +2102,7 @@
          \@lefttrue%
       \fi%
    \fi%
-   \let\below@newline\newline
+   \let\below@newline\newline%
    \l@@klist%
 }
 
@@ -2126,7 +2193,7 @@
    \bgroup%
    \parindent\z@%
    \parskip\tw@\p@%
-   {\bf
+   {\bfseries%
       \noindent\if@label\showlabel{\the\label@tk}\fi%
       \the\number@tk) %
       \ifauth@r%
@@ -2135,7 +2202,7 @@
          \else%
             {\@notfirstfalse% We are the first one
             \def\name@sep{, }%
-            \let\@action=\@writename%
+            \let\@action=\@sol@writename%
             \@parseTokenlist\aut@tk;}:%
          \fi%
          \par%
@@ -2270,9 +2337,9 @@
 }
 
 \def\@figurine@computer{%
-   \if@show@computer
-      \if@computer\ (Co)\fi%
-   \fi%
+   \ifthenelse{\boolean{showcomputer}}{%
+      \if@computer\ \computerproofedsymbol\fi%
+   }{}%
 }
 
 \def\@figurine@remarks{%
@@ -2313,7 +2380,8 @@
    \fi
 }
 \def\@months#1-#2;{\from@month=#1\to@month=#2\@datetrue}
-\def\@writename#1; {\sep@names\@dianame#1; \l@@klist}
+\def\@dia@writename#1; {\sep@names\@dianame#1; \l@@klist}
+\def\@sol@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;{%
@@ -2387,9 +2455,9 @@
 }
 
 \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
+   \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}
@@ -3018,7 +3086,7 @@
          \or%
             \def\@thePiece{\ds@king}%
          \fi%
-         \expandafter\xdef\csname
+         \expandafter\xdef\csname%
          \@theColor\@thePiece\@theRotation\endcsname{%
             \noexpand\ch@fig{\the\help@a}%
          }
@@ -3049,9 +3117,9 @@
 \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
+   \advance\normalboardwidth\tw@\inner@frame%
+   \advance\normalboardwidth\tw@\h@frame@dist%
+   \advance\normalboardwidth\tw@\outer@frame%
 }
 
 \setboardwidth
diff --git a/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty b/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty
index d23dfded10e..099275c3e43 100644
--- a/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty
+++ b/Master/texmf-dist/tex/latex/chess-problem-diagrams/diagram.sty
@@ -35,7 +35,8 @@
 %%
 %%
 %%
-\ProvidesPackage{diagram}[2008/03/09]
+
+\ProvidesPackage{diagram}[2011/06/04]
 \DeclareOption{10pt}{\AtBeginDocument{\diagramx}}
 \DeclareOption{11pt}{\AtBeginDocument{\diagramxi}}
 \DeclareOption{12pt}{\AtBeginDocument{\diagramxii}}
@@ -194,7 +195,9 @@
 \newif\if@gridlines\@gridlinesfalse
 \newif\if@fieldframe\@fieldframefalse
 \newif\if@stdgrid\@stdgridfalse
-\newif\if@show@computer\@show@computertrue
+\newboolean{showcomputer}\setboolean{showcomputer}{true}%
+\newcommand*{\computerproofedsymbol}{C+}
+\newcommand*{\notcomputerproofedsymbol}{C-}
 \newif\if@stipulation\@stipulationfalse
 \newif\if@condition\@conditionfalse
 \newif\if@remark\@remarkfalse
@@ -268,12 +271,12 @@
    \@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
+   \init@vars%
+   \let\author=\ds@author%
+   \let\day=\ds@day%
+   \let\month=\ds@month%
+   \let\year=\ds@year%
+   \let\label=\ds@label%
    \ignorespaces%
 }
 
@@ -284,11 +287,11 @@
 }
 
 \def\enddiagram{%
-   \let\author=\orig@author
-\let\day=\orig@day
-\let\month=\orig@month
-\let\year=\orig@year
-\let\label=\orig@label
+   \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
@@ -322,8 +325,8 @@
       \ifdim\space@frame>\outer@frame%
          \outer@frame=\space@frame%
       \fi%
-      \advance\bd@width\tw@\inner@frame
-      \advance\board@width\tw@\inner@frame
+      \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%
@@ -339,8 +342,8 @@
       \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\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%
@@ -444,13 +447,16 @@
 
 \def\put@count{%
    % First we build the box with the figure count
-   \ifthenelse{\boolean{piececounter}}{%
+   \ifthenelse{\boolean{showcomputer}\OR\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}}{})%
+        \stipfont%
+        \ifthenelse{\boolean{showcomputer}}{%
+           \ \ \if@computer\computerproofedsymbol\else\notcomputerproofedsymbol\fi%
+        }{}%
+        \ifthenelse{\boolean{piececounter}}{%
+            \ \ (\arabic{cpd@whitePieces}+\arabic{cpd@blackPieces}%
+            \ifthenelse{\value{cpd@neutralPieces}>0}{+\arabic{cpd@neutralPieces}}{})%
+        }{}%
       }%
       \@cnt@wd=\wd\@cnt@box%
       \hangindent-\@cnt@wd%
@@ -465,21 +471,21 @@
 \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
+   \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
+   \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
@@ -779,11 +785,11 @@
    \ignorespaces%
 }
 \def\showcomputer{%
-   \@show@computertrue%
+   \setboolean{showcomputer}{true}%
    \ignorespaces%
 }
 \def\nocomputer{%
-   \@show@computerfalse%
+   \setboolean{showcomputer}{false}%
    \ignorespaces%
 }
 \def\putsol{\immediate\closeout\s@lfd\input\jobname.sol\cl@arsol}
@@ -826,15 +832,30 @@
    \expandafter\xdef\csname\ds@white Nr\endcsname{%
       \noexpand\ch@fig{109}%
    }%
+   \expandafter\xdef\csname\ds@neutral Nr\endcsname{%
+      \noexpand\ch@fig{115}%
+   }%
    \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@neutral Gh\endcsname{%
+      \noexpand\ch@fig{118}%
+   }%
    \expandafter\xdef\csname\ds@black Gh\endcsname{%
       \noexpand\ch@fig{124}%
    }%
+   \expandafter\xdef\csname\ds@white C\endcsname{%
+      \noexpand\ch@fig{145}%
+   }%
+   \expandafter\xdef\csname\ds@neutral C\endcsname{%
+      \noexpand\ch@fig{151}%
+   }%
+   \expandafter\xdef\csname\ds@black C\endcsname{%
+      \noexpand\ch@fig{157}%
+   }%
 }
 \def\Imi{\ch@fig{157}}
 \def\dia@above{%
@@ -881,7 +902,7 @@
       \else%
          {\def\name@sep{\par}%
          \@notfirstfalse%
-         \let\@action=\@writename% Parse the list of authors
+         \let\@action=\@dia@writename% Parse the list of authors
        \@parseTokenlist\aut@tk;}
       \fi%
       \egroup%
@@ -1048,7 +1069,7 @@
          \@lefttrue%
       \fi%
    \fi%
-   \let\below@newline\newline
+   \let\below@newline\newline%
    \l@@klist%
 }
 
@@ -1139,7 +1160,7 @@
    \bgroup%
    \parindent\z@%
    \parskip\tw@\p@%
-   {\bf
+   {\bfseries%
       \noindent\if@label\showlabel{\the\label@tk}\fi%
       \the\number@tk) %
       \ifauth@r%
@@ -1148,7 +1169,7 @@
          \else%
             {\@notfirstfalse% We are the first one
             \def\name@sep{, }%
-            \let\@action=\@writename%
+            \let\@action=\@sol@writename%
             \@parseTokenlist\aut@tk;}:%
          \fi%
          \par%
@@ -1283,9 +1304,9 @@
 }
 
 \def\@figurine@computer{%
-   \if@show@computer
-      \if@computer\ (Co)\fi%
-   \fi%
+   \ifthenelse{\boolean{showcomputer}}{%
+      \if@computer\ \computerproofedsymbol\fi%
+   }{}%
 }
 
 \def\@figurine@remarks{%
@@ -1326,7 +1347,8 @@
    \fi
 }
 \def\@months#1-#2;{\from@month=#1\to@month=#2\@datetrue}
-\def\@writename#1; {\sep@names\@dianame#1; \l@@klist}
+\def\@dia@writename#1; {\sep@names\@dianame#1; \l@@klist}
+\def\@sol@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;{%
@@ -1400,9 +1422,9 @@
 }
 
 \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
+   \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}
@@ -2031,7 +2053,7 @@
          \or%
             \def\@thePiece{\ds@king}%
          \fi%
-         \expandafter\xdef\csname
+         \expandafter\xdef\csname%
          \@theColor\@thePiece\@theRotation\endcsname{%
             \noexpand\ch@fig{\the\help@a}%
          }
@@ -2062,9 +2084,9 @@
 \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
+   \advance\normalboardwidth\tw@\inner@frame%
+   \advance\normalboardwidth\tw@\h@frame@dist%
+   \advance\normalboardwidth\tw@\outer@frame%
 }
 
 \setboardwidth