Fighting Head-Hunters (p. 16)

	$\displaystyle \Circled{1}\ \underline{O}. {A}$
	$% latex2html id marker 2788 $\displaystyle \Circled{2}\ \overleftarrow{5}(\unde... ...\ensuremath{\mid}}{3pt}{0pt}\ \ensuremath{\char93 }\ \Box 1\ensuremath{\vert}\ $$
	$% latex2html id marker 2789 $\displaystyle \Circled{3}\ \underrightarrow{1}(\un... ...ne{5n}^{(2)})\ \ \ensuremath{\char93 }\ \Box 5\infty ^{(2)}\ \ensuremath{\vert}$$
	$% latex2html id marker 2790 $\displaystyle \Circled{4}\ \overleftarrow{5}(\underline{1f}^{(2)})\ \ \ensuremath{\char93 }\ $$
	$\displaystyle \Circled{5}\ \textrm{Arrange so that a central $\bigtriangledown$\ appears.}\$
	$% latex2html id marker 2792 $\displaystyle \hspace{1cm} \overrightarrow{2}\! \u... ...down) : \overleftarrow{2}(\underline{s}^{(2)} : {1n} )\ \ \ensuremath{\char93 }$$
	$% latex2html id marker 2793 $\displaystyle \Circled{6}\ N \ell 2 \infty \ : \Box 1 \infty ^{(2)}\ \ensuremath{\vert}\ $$
	$% latex2html id marker 2794 $\displaystyle \Circled{7}\ [ \gg 2 ]^3\ \textrm{until tight}: \ensuremath{\Box}2\infty ^{(2)}\ $$
	$\displaystyle \Circled{8}\ \textrm{Use $5$\ to tug figure apart. \lq\lq They fight and they fight...''}$