From b9c22e5cacc5541c71706889c2cd58ceb966ff45 Mon Sep 17 00:00:00 2001 From: Simon Tatham Date: Sun, 27 Dec 2009 10:01:09 +0000 Subject: New mode for Unequal, from James H. In this mode, called 'Adjacent', the < and > clues are replaced by bars separating every pair of squares whose contents differ by exactly 1. Unlike standard Unequal, which presents only a subset of the available clues, in Adjacent the clues are _all_ present, so you can deduce from the absence of a bar that the two numbers it would separate are _not_ consecutive. [originally from svn r8790] --- puzzles.but | 30 +++++++++++++++++++++++------- 1 file changed, 23 insertions(+), 7 deletions(-) (limited to 'puzzles.but') diff --git a/puzzles.but b/puzzles.but index 0c6f2f5..01b91d8 100644 --- a/puzzles.but +++ b/puzzles.but @@ -2240,21 +2240,33 @@ tightly-packed islands. \cfg{winhelp-topic}{games.unequal} You have a square grid; each square may contain a digit from 1 to -the size of the grid, and some squares have greater-than signs between +the size of the grid, and some squares have clue signs between them. Your aim is to fully populate the grid with numbers such that: \b Each row contains only one occurrence of each digit \b Each column contains only one occurrence of each digit -\b All the greater-than signs are satisfied. +\b All the clue signs are satisfied. -In \q{Trivial} mode (available via the \q{Custom} game type -selector), there are no greater-than signs; the puzzle is to solve -the \i{Latin square} only. +There are two modes for this game, \q{Unequal} and \q{Adjacent}. -At the time of writing, this puzzle is appearing in the Guardian -weekly under the name \q{\i{Futoshiki}}. +In \q{Unequal} mode, the clue signs are greater-than symbols indicating one +square's value is greater than its neighbour's. In this mode not all clues +may be visible, particularly at higher difficulty levels. + +In \q{Adjacent} mode, the clue signs are bars indicating +one square's value is numerically adjacent (i.e. one higher or one lower) +than its neighbour. In this mode all clues are always visible: absence of +a bar thus means that a square's value is definitely not numerically adjacent +to that neighbour's. + +In \q{Trivial} difficulty level (available via the \q{Custom} game type +selector), there are no greater-than signs in \q{Unequal} mode; the puzzle is +to solve the \i{Latin square} only. + +At the time of writing, the \q{Unequal} mode of this puzzle is appearing in the +Guardian weekly under the name \q{\i{Futoshiki}}. Unequal was contributed to this collection by James Harvey. @@ -2305,6 +2317,10 @@ filled square. These parameters are available from the \q{Custom...} option on the \q{Type} menu. +\dt \e{Mode} + +\dd Mode of the puzzle (\q{Unequal} or \q{Adjacent}) + \dt \e{Size (s*s)} \dd Size of grid. -- cgit v1.1