ref: 068a092cd54e33497e4fff01445a5d927794c76e
parent: f2ff444fca4da3f63fe0473fc660bb3a5429c2bc
author: Simon Tatham <anakin@pobox.com>
date: Wed Aug 31 08:43:14 EDT 2005
Ahem; forgot about recursion. Recursive solving now shows its working as well. [originally from svn r6245]