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;
}