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| author | Simon Tatham <anakin@pobox.com> | 2005-05-07 12:30:29 +0000 |
|---|---|---|
| committer | Simon Tatham <anakin@pobox.com> | 2005-05-07 12:30:29 +0000 |
| commit | 944997d2f936150d8efbaba6dcb3e237b5658761 (patch) | |
| tree | 67636b40d355acb9e1f12df0a77380ee06c80367 /puzzles.but | |
| parent | b35bedd60c87e362f2dd59760aa8bf340fa3b428 (diff) | |
| download | puzzles-944997d2f936150d8efbaba6dcb3e237b5658761.zip puzzles-944997d2f936150d8efbaba6dcb3e237b5658761.tar.gz puzzles-944997d2f936150d8efbaba6dcb3e237b5658761.tar.bz2 puzzles-944997d2f936150d8efbaba6dcb3e237b5658761.tar.xz | |
Aha, here's a nice easy way to generate really hard puzzles. Added
the missing fifth difficulty level to Solo: `Unreasonable', in which
even set-based reasoning is insufficient and there's no alternative
but to guess a number and backtrack if it didn't work. (Solutions
are still guaranteed unique, however.) In fact it now seems to take
less time to generate a puzzle of this grade than `Advanced'!
[originally from svn r5756]
Diffstat (limited to 'puzzles.but')
| -rw-r--r-- | puzzles.but | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/puzzles.but b/puzzles.but index 1e6c0fa..7d90f43 100644 --- a/puzzles.but +++ b/puzzles.but @@ -691,9 +691,10 @@ particular, on difficulty levels \q{Trivial} and \q{Basic} there will be a square you can fill in with a single number at all times, whereas at \q{Intermediate} level and beyond you will have to make partial deductions about the \e{set} of squares a number could be in -(or the set of numbers that could be in a square). None of the -difficulty levels generated by this program ever requires making a -guess and backtracking if it turns out to be wrong. +(or the set of numbers that could be in a square). At +\q{Unreasonable} level, even this is not enough, and you will +eventually have to make a guess, and then backtrack if it turns out +to be wrong. Generating difficult puzzles is itself difficult: if you select \q{Intermediate} or \q{Advanced} difficulty, Solo may have to make @@ -738,6 +739,8 @@ parameters: \b \cq{da} for Advanced difficulty level +\b \cq{du} for Unreasonable difficulty level + So, for example, you can make Solo generate asymmetric 3x4 grids by running \cq{solo 3x4a}, or 4-way rotationally symmetric 2x3 grids by running \cq{solo 2x3r4}, or \q{Advanced}-level 2x3 grids by running |