ref: 81e3a145bff031c0bb010a3678870990ae915faf
parent: 05a0cf068498663f0f2e17b9fa19b2188db6e6a7
author: Simon Tatham <anakin@pobox.com>
date: Sat May 12 04:14:37 EDT 2007
Remove the check for disconnected pieces; it's over-general and triggers on a perfectly connected piece shaped like an inverted T. [originally from svn r7570]