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% This is a skak version of the tugame.ltx which Piet Tutelaers made
% to show how the original chess package could be used.
% I have changed it to use the skak package commands as a
% demonstration of how to use the skak package.
% Author: Torben Hoffmann
%
% Change history
% --------------
% Version Comments
% 1.0 Initial version adapted to the skak package.
% The original comments follows below
%===================================================================
%
% TUGgame.ltx
% -----------
% LaTeX source of example in TUGboat article (part of the game Fisher
% lost against Tal), input'ted by TUGboat.ltx.
% Author : Piet Tutelaers (internet: rcpt@urc.tue.nl)
% Version: 1.2 ( 8 Jun 1991)
% Reflects changes in chess.sty version 1.2
% Version: 1.1 (30 Nov 1990)
% Improvements over version 1.0:
% - two typos corrected, thanks Hugo
%===================================================================
\documentclass[11pt,twocolumn]{article}
\usepackage[ps,mover,styleC]{skak}
\title{Example of the LaTeX-input and output of an annotated
chess game using \texttt{skak.sty}}
\author{Torben Hoffmann}
\begin{document}
\parindent=0pt
\maketitle
\section{The Input}
\begin{verbatim}
\fenboard{1q3kr1/3rb2p/p3Q3/8/%
1p6/8/PPP3PP/4R2K w - - 0 26}
\begin{figure}[htbp]
\begin{center}
$$\showboard$$
\caption{Fischer--Tal after
\protect\variation{25... Kf8!}}
\label{fig:after-25...Kf8}
\end{center}
\end{figure}
(See figure~\ref{fig:after-25...Kf8}.)
\mainline{26. Qxd7}
Not \variation{26. Rf1+ Kg7 27. Rf7+
Kh8}
and if \variation{28. Qxd7 Rd8 29. Qg4
Qe5}
wins.
\mainline{26...Qd6 27. Qb7 Rg6}
Within a handful of moves the game
has changed its complexion. Now it
is White who must fight for a draw!
\mainline{28. c3}
Black's extra piece means less with
each pawn that's exchanged.
\mainline{28...a5}
On \variation{28...bxc3 29. Qc8+ Bd8
30. Qxc3}=.
\mainline{29. Qc8+}
On the wrong track. Right is
\variation{29. cxb4 Qxb4} (if
\variation{29... axb4 30. a3! bxa3
31. bxa3 Qxa3} draws)
\variation{30. Qf3+ Kg7 31. Qe2} draws,
since Black can't possibly build up a
winning K-side attack and his own
king is to exposed.
\mainline{29...Kg7 30. Qc4 Bd8
31. cxb4 axb4}
On \variation{31... Qxb4 32. Qe2}
White should draw with best play.
$$\showboard$$
\end{verbatim}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{The Output}
\fenboard{1q3kr1/3rb2p/p3Q3/8/%
1p6/8/PPP3PP/4R2K w - - 0 26}
\begin{figure}[htbp]
\begin{center}
$$\showboard$$
\caption{Fischer--Tal after
\protect\variation{25... Kf8!}}
\label{fig:after-25...Kf8}
\end{center}
\end{figure}
(See figure~\ref{fig:after-25...Kf8}.)
\mainline{26. Qxd7}
Not \variation{26. Rf1+ Kg7 27. Rf7+
Kh8}
and if \variation{28. Qxd7 Rd8 29. Qg4
Qe5}
wins.
\mainline{26...Qd6 27. Qb7 Rg6}
Within a handful of moves the game
has changed its complexion. Now it
is White who must fight for a draw!
\mainline{28. c3}
Black's extra piece means less with
each pawn that's exchanged.
\mainline{28...a5}
On \variation{28...bxc3 29. Qc8+ Bd8
30. Qxc3}=.
\mainline{29. Qc8+}
On the wrong track. Right is
\variation{29. cxb4 Qxb4} (if
\variation{29... axb4 30. a3! bxa3
31. bxa3 Qxa3} draws)
\variation{30. Qf3+ Kg7 31. Qe2} draws,
since Black can't possibly build up a
winning K-side attack and his own
king is to exposed.
\mainline{29...Kg7 30. Qc4 Bd8
31. cxb4 axb4}
On \variation{31... Qxb4 32. Qe2}
White should draw with best play.
$$\showboard$$
\end{document}
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