%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 10-7-1 on page 709.
%% 
%%  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{207.83385pt}
\StartShownPreambleCommands
\usepackage{sudoku}
\setlength\sudokusize{5cm}
\renewcommand\sudokuformat[1]{\textsf{#1}}
\StopShownPreambleCommands
\begin{document}
\begin{sudoku-block}
|4| | | | | | |1| |.
| | |2|6| | |4| | |.
|6|7| | | | | |9|2|.
| |2| | | |4| | | |.
| |1| |7| |9| |6| |.
| | | |3| | | |2| |.
|1|3| | | | | |7|9|.
| | |7| | |5|3| | |.
| | |8| | | | | |1|.
\end{sudoku-block}
\end{document}