define "doesn't work"? it ran with many test cases for me..

update: downloaded my exact code posted here and ran it with the following games..

my @b = qw(X X X X X X X X X X 7 2);

[rchiav@aps:/home/rchiav]$ score
score is 286

my @b = qw(X X X X X X X X X X X X);

[rchiav@aps:/home/rchiav]$ score
score is 300

my @b = qw(X 9 / X 9 / X 9 / X 9 / X 9 / X);

[rchiav@aps:/home/rchiav]$ score
score is 200

and the actual example given in the description..
my @b = qw(5 / 6 3 X X 7 0 4 3 X 4 / 8 1 3 / 6);

[rchiav@aps:/home/rchiav]$ score
score is 146
[download]

If you could, please explain to me what's "not working".