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This golf challenge is tricky, because the design is opposite from how one would usually approach Boggle. Not that this is a bad thing; it makes the challenge more interesting!

Usually, when playing Boggle, you start with a list of words, and search the grid for all the words in the list. (In real life, the word list is your vocabulary. In a program, it might be /usr/dict or some other word list.) In this golf challenge, you start with the grid, and then you get one word at a time that you try to find, and you can stop searching as soon as you find the word.

Here's my solution. I went for the bonus points using \$n as the board size. It's 195 characters; surely a shorter solution is possible!

```sub test_boggle_word {
#        1         2         3         4         5
#2345678901234567890123456789012345678901234567890
my\$t;for\$y(@n=0..\$n-1){\$t|=t(\$y,\$_,@_)for@n}sub t{
my(\$y,\$x,\$w,\$n,@g,\$t)=@_;if(\$y>=0&\$y<\$n&\$x>=0&\$x<\$
n&chop\$w eq splice@g,\$y*\$n+\$x,1,0){for\$Y(-1..1){\$t
|=t(\$y+\$Y,\$x+\$_,\$w,\$n,@g)|!\$w for-1..1}}\$t}\$t
}

# testing code:

@bogglelist = qw/ R E W E
M T A S
K L E T
N V F O /;

\$n = 4;

\$dict = [ qw/ WATER SETTER VETO WASTE WASTES / ];

print "\$_\n" for find_boggle_words();

sub find_boggle_words {
#  \$storage = prepare_boggle_search( \$n, @bogglelist );

@matched = grep { test_boggle_word( \$_, \$n, @bogglelist ) } @\$dict;
return @matched;
}
In my testing code, WATER, VETO and WASTE can be found in the grid. The original node doesn't specify, but in the rules of Boggle a single cube cannot be used twice in the same word. So, WASTES can't be found because the S would be used twice.

In reply to Re: (Golf) The Perl Boggles by chipmunk
in thread (Golf) The Perl Boggles by Masem

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