This is a collection of small one-player puzzle games.
-\copyright This manual is copyright 2004-2010 Simon Tatham. All rights
+\copyright This manual is copyright 2004-2012 Simon Tatham. All rights
reserved. You may distribute this documentation under the MIT licence.
See \k{licence} for the licence text in full.
(the start at the top left, and the end at the bottom right). If false the start
and end squares are placed randomly (although always both shown).
+\C{range} \i{Range}
+
+\cfg{winhelp-topic}{games.range}
+
+You have a grid of squares; some squares contain numbers. Your job is
+to colour some of the squares black, such that several criteria are
+satisfied:
+
+\b no square with a number is coloured black.
+
+\b no two black squares are adjacent (horizontally or vertically).
+
+\b for any two white squares, there is a path between them using only
+white squares.
+
+\b for each square with a number, that number denotes the number of
+squares reachable from that square going in each direction until
+hitting a wall or a black square.
+
+For instance, a square containing the number one must have four black
+squares as its neighbours by the last criterion; but then it's
+impossible for it to be connected to any outside white square, which
+violates the second to last criterion. So no square will contain the
+number one.
+
+Credit for this puzzle goes to \i{Nikoli}, who have variously called
+it \q{Kurodoko}, \q{Kuromasu} or \q{Where is Black Cells}.
+\k{nikoli-range}.
+
+Range was contributed to this collection by Jonas K\u00F6{oe}lker.
+
+\B{nikoli-range}
+\W{http://www.nikoli.co.jp/en/puzzles/where_is_black_cells/}\cw{http://www.nikoli.co.jp/en/puzzles/where_is_black_cells/}
+
+\H{range-controls} \I{controls, for Range}Range controls
+
+Click with the left button to paint a square black, or with the right
+button to mark a square with a dot to indicate that you are sure it
+should \e{not} be painted black. Repeated clicking with either button
+will cycle the square through the three possible states (filled,
+dotted or empty) in opposite directions.
+
+You can also use the cursor keys to move around the grid squares.
+Pressing Return does the same as clicking with the left button, while
+pressing Space does the same as a right button click.
+
+(All the actions described in \k{common-actions} are also available.)
+
+\H{range-parameters} \I{parameters, for Range}Range parameters
+
+These parameters are available from the \q{Custom...} option on the
+\q{Type} menu.
+
+\dt \e{Width}, \e{Height}
+
+\dd Size of grid in squares.
+
+\C{pearl} \i{Pearl}
+
+\cfg{winhelp-topic}{games.pearl}
+
+You have a grid of squares. Your job is to draw lines between the
+centres of horizontally or vertically adjacent squares, so that the
+lines form a single closed loop. In the resulting grid, some of the
+squares that the loop passes through will contain corners, and some
+will be straight horizontal or vertical lines. (And some squares can
+be completely empty \dash the loop doesn't have to pass through every
+square.)
+
+Some of the squares contain black and white circles, which are clues
+that the loop must satisfy.
+
+A black circle in a square indicates that that square is a corner, but
+neither of the squares adjacent to it in the loop is also a corner.
+
+A while circle indicates that the square is a straight edge, but \e{at
+least one} of the squares adjacent to it in the loop is a corner.
+
+(In both cases, the clue only constrains the two squares adjacent
+\e{in the loop}, that is, the squares that the loop passes into after
+leaving the clue square. The squares that are only adjacent \e{in the
+grid} are not constrained.)
+
+Credit for this puzzle goes to \i{Nikoli}, who call it \q{Masyu}.
+\k{nikoli-pearl}.
+
+Thanks to James Harvey for assistance with the implementation.
+
+\B{nikoli-pearl}
+\W{http://www.nikoli.co.jp/en/puzzles/masyu/}\cw{http://www.nikoli.co.jp/en/puzzles/masyu/}
+
+\H{pearl-controls} \I{controls, for Pearl}Pearl controls
+
+Click with the left button on a grid edge to draw a segment of the
+loop through that edge, or to remove a segment once it is drawn.
+
+Drag with the left button through a series of squares to draw more
+than one segment of the loop in one go. Alternatively, drag over an
+existing part of the loop to undraw it, or to undraw part of it and
+then go in a different direction.
+
+Click with the right button on a grid edge to mark it with a cross,
+indicating that you are sure the loop does not go through that edge.
+(For instance, if you have decided which of the squares adjacent to a
+white clue has to be a corner, but don't yet know which way the corner
+turns, you might mark the one way it \e{can't} go with a cross.)
+
+(All the actions described in \k{common-actions} are also available.)
+
+\H{pearl-parameters} \I{parameters, for Pearl}Pearl parameters
+
+These parameters are available from the \q{Custom...} option on the
+\q{Type} menu.
+
+\dt \e{Width}, \e{Height}
+
+\dd Size of grid in squares.
+
+\dt \e{Difficulty}
+
+\dd Controls the difficulty of the generated puzzle.
\A{licence} \I{MIT licence}\ii{Licence}
-This software is \i{copyright} 2004-2010 Simon Tatham.
+This software is \i{copyright} 2004-2012 Simon Tatham.
Portions copyright Richard Boulton, James Harvey, Mike Pinna, Jonas
K\u00F6{oe}lker, Dariusz Olszewski, Michael Schierl, Lambros
~mdw / sgt / puzzles / blobdiff