ref: a42b11add35eb1986ff2db7817221ace550a8480
parent: c3d1982dcb2de62ea2eb79e01eda8106d3335042
author: Simon Tatham <anakin@pobox.com>
date: Sat Aug 6 10:52:26 EDT 2005
Streamline `slantsolver' a bit (avoid showing advanced working on easy puzzles, and stop having a second encoding of the difficulty levels). [originally from svn r6170]