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% chessboard.sty
% sebastian rahtz august 29th 1989
%
% from Clark's cheq.sty, and article by W. Appelt in Tugboat 9.2,
% 284--287, 1988
%---------------
% fonts
% Derived from cheq.pl by Adrian F. Clark, 11th July 1989.
% Can be used by LaTeX or by plain TeX.
\newcounter{chessmove}
\setcounter{chessmove}{0}
\font\Cheq=cheq at 18pt % design size is 1pt; characters just legible at this size
\def\CheqBBOnBlack{\Cheq\char 241 }
\def\CheqBB{\Cheq\char 76 }
\def\CheqBXOnBlack{\Cheq\char 240 }
\def\CheqBX{\Cheq\char 75 }
\def\CheqBKOnBlack{\Cheq\char 234 }
\def\CheqBK{\Cheq\char 83 }
\def\CheqBPOnBlack{\Cheq\char 184 }
\def\CheqBP{\Cheq\char 80 }
\def\CheqBQOnBlack{\Cheq\char 206 }
\def\CheqBQ{\Cheq\char 81 }
\def\CheqBROnBlack{\Cheq\char 229 }
\def\CheqBR{\Cheq\char 84 }
\def\CheqBSquare{\Cheq\char 120 }
\def\CheqWBOnBlack{\Cheq\char 186 }
\def\CheqWB{\Cheq\char 98 }
\def\CheqWXOnBlack{\Cheq\char 251 }
\def\CheqWX{\Cheq\char 107 }
\def\CheqWKOnBlack{\Cheq\char 167 }
\def\CheqWK{\Cheq\char 115 }
\def\CheqWPOnBlack{\Cheq\char 185 }
\def\CheqWP{\Cheq\char 112 }
\def\CheqWQOnBlack{\Cheq\char 182 }
\def\CheqWQ{\Cheq\char 113 }
\def\CheqWROnBlack{\Cheq\char 160 }
\def\CheqWR{\Cheq\char 116 }
%--------------
\newif\ifblackchess
\newif\ifblackplaying
\def\BB{\ifblackchess\CheqBBOnBlack\else\CheqBB\fi}
\def\BX{\ifblackchess\CheqBXOnBlack\else\CheqBX\fi}
\def\BK{\ifblackchess\CheqBKOnBlack\else\CheqBK\fi}
\def\BP{\ifblackchess\CheqBPOnBlack\else\CheqBP\fi}
\def\BQ{\ifblackchess\CheqBQOnBlack\else\CheqBQ\fi}
\def\BR{\ifblackchess\CheqBROnBlack\else\CheqBR\fi}
\def\WB{\ifblackchess\CheqWBOnBlack\else\CheqWB\fi}
\def\WX{\ifblackchess\CheqWXOnBlack\else\CheqWX\fi}
\def\WK{\ifblackchess\CheqWKOnBlack\else\CheqWK\fi}
\def\WP{\ifblackchess\CheqWPOnBlack\else\CheqWP\fi}
\def\WQ{\ifblackchess\CheqWQOnBlack\else\CheqWQ\fi}
\def\WR{\ifblackchess\CheqWROnBlack\else\CheqWR\fi}
%
% Appelt's move macros, amended
%
\def\Move#1#2#3#4#5#6{
% [XQKBRP][a-h][1-9][-x][a-h][1-8]
\def\hashthree{\ifcase#3\relax\or A\or B\or C\or D\or E\or F\or G\or H\fi}
\def\hashsix{\ifcase#6\relax\or A\or B\or C\or D\or E\or F\or G\or H\fi}
\ifblackplaying\relax\else\addtocounter{chessmove}{1}\par\thechessmove.\fi
#1#2#3#4#5#6
\typeout{#1 #2#3 #4 #5#6}
\expandafter%
\def\csname #2@\hashthree\endcsname{\void}%
\ifblackplaying\expandafter%
\def\csname #5@\hashsix\endcsname{\csname B#1\endcsname}%
\else\expandafter%
\def\csname #5@\hashsix\endcsname{\csname W#1\endcsname}%
\fi
}
%
\def\move#1#2#3#4#5#6 {
% [XQKBRP][a-h][1-8][-x][a-h][1-8]
\if#3-
\Move P#1#2#3#4#5
\else\if#3x
\Move P#1#2#3#4#5%
\else
\Move #1#2#3#4#5#6
\fi\fi
\ifblackplaying\blackplayingfalse\else\blackplayingtrue\fi
}
%-------------------
\def\void{\ifblackchess\CheqBSquare\else\hfill\fi}
%------ Initial settings of board -------------
\def\a@H{\BR}
\def\b@H{\BK}\def\c@H{\BB}\def\d@H{\BQ}
\def\e@H{\BX}\def\f@H{\BK}\def\g@H{\BB}
\def\h@H{\BR}
% ps
\def\a@G{\BP}\def\b@G{\BP}\def\c@G{\BP}
\def\d@G{\BP}\def\e@G{\BP}\def\f@G{\BP}
\def\g@G{\BP}\def\h@G{\BP}
% blank squares
%
\def\a@F{\void}\def\b@F{\void}\def\c@F{\void}\def\d@F{\void}
\def\e@F{\void}\def\f@F{\void}\def\g@F{\void}\def\h@F{\void}
\def\a@E{\void}\def\b@E{\void}\def\c@E{\void}\def\d@E{\void}
\def\e@E{\void}\def\f@E{\void}\def\g@E{\void}\def\h@E{\void}
\def\a@D{\void}\def\b@D{\void}\def\c@D{\void}\def\d@D{\void}
\def\e@D{\void}\def\f@D{\void}\def\g@D{\void}\def\h@D{\void}
\def\a@C{\void}\def\b@C{\void}\def\c@C{\void}\def\d@C{\void}
\def\e@C{\void}\def\f@C{\void}\def\g@C{\void}\def\h@C{\void}
%
\def\a@B{\WP}\def\b@B{\WP}\def\c@B{\WP}\def\d@B{\WP}\def\e@B{\WP}\def\f@B{\WP}
\def\g@B{\WP}\def\h@B{\WP}
%
\def\a@A{\WR}\def\b@A{\WK}\def\c@A{\WB}\def\d@A{\WX}
\def\e@A{\WQ}\def\f@A{\WB}\def\g@A{\WK}\def\h@A{\WR}
%---------------------------------------------------
%
\def\BlackSquare#1{\blackchesstrue#1\blackchessfalse}
%
\def\showboard{
\par\vspace{1cm}
\centerline{Board after move \thechessmove\ of \ifblackplaying White
\else Black \fi player}
\par\vspace{1cm}
\tabcolsep=0pt
\centerline{\begin{tabular}{lcccccccc}
\cline{2-9}
8 \vline& \a@H\vline&\BlackSquare{\b@H}\vline&\c@H\vline&\BlackSquare{\d@H}\vline&\e@H\vline&\BlackSquare{\f@H}\vline&
\g@H\vline&\BlackSquare{\h@H}\vline\\
\cline{2-9}
7 \vline& \BlackSquare{\a@G}\vline&\b@G\vline&\BlackSquare{\c@G}\vline&\d@G\vline&\BlackSquare{\e@G}\vline&\f@G\vline&\BlackSquare{\g@G}\vline&\h@G\vline\\
\cline{2-9}
6 \vline& \a@F\vline&\BlackSquare{\b@F}\vline&\c@F\vline&\BlackSquare{\d@F}\vline&\e@F\vline&\BlackSquare{\f@F}\vline&
\g@F\vline&\BlackSquare{\h@F}\vline\\
\cline{2-9}
5 \vline& \BlackSquare{\a@E}\vline&\b@E\vline&\BlackSquare{\c@E}\vline&\d@E\vline&\BlackSquare{\e@E}\vline&\f@E\vline&\BlackSquare{\g@E}\vline&\h@E\vline\\
\cline{2-9}
4 \vline& \a@D\vline&\BlackSquare{\b@D}\vline&\c@D\vline&\BlackSquare{\d@D}\vline&\e@D\vline&\BlackSquare{\f@D}\vline&
\g@D\vline&\BlackSquare{\h@D}\vline\\
\cline{2-9}
3 \vline& \BlackSquare{\a@C}\vline&\b@C\vline&\BlackSquare{\c@C}\vline&\d@C\vline&\BlackSquare{\e@C}\vline&\f@C\vline&\BlackSquare{\g@C}\vline&\h@C\vline\\
\cline{2-9}
2 \vline& \a@B\vline&\BlackSquare{\b@B}\vline&\c@B\vline&\BlackSquare{\d@B}\vline&\e@B\vline&\BlackSquare{\f@B}\vline&
\g@B\vline&\BlackSquare{\h@B}\vline\\
\cline{2-9}
1 \vline& \BlackSquare{\a@A}\vline&\b@A\vline&\BlackSquare{\c@A}\vline&\d@A\vline&\BlackSquare{\e@A}\vline&\f@A\vline&\BlackSquare{\g@A}\vline&\h@A\vline\\
\cline{2-9}
&a&b&c&d&e&f&g&h\\
\end{tabular}}
\par
}
% examples
%\showboard
%
%\move e2-e4 \move c7-c6 \move c2-c4
%\move d7-d5
%\move Kb1-d2 \move d5xe4 \move Kd2xe4 \move Kb8-d7
%\move Kg1-f3
%
%\showboard
%
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