%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 10-3-9 on page 695.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{159.83385pt}
\StartShownPreambleCommands
\usepackage{igo}
\StopShownPreambleCommands
\begin{document}
Unnumbered stones are typeset as \whitestone{} and
\blackstone{}; numbered stones as \whitestone[16] and
\blackstone[87] and special symbols as
\whitestone[\igotriangle], \blackstone[\igosquare],
\whitestone[\igocircle], and \blackstone[\igocross].
\footnotesize All are obeying font size changes:
\blackstone[\igocross] \whitestone[123].
\end{document}