Short though this is it fails the test suite 

print score(qw(5 / 6 3 X X 7 0 4 3 X 4 / 8 1 3 / 6)),"--> 146\n";
print score(qw(X X X X X X X X X X X X)), "--> 300\n";
print score(qw(0 / X 0 / X 0 / X 0 / X 0 / X 0 /)),"--> 200\n";
print score(qw(X 0 / X 0 / X 0 / X 0 / X 0 / X 0)),"--> 200\n";

sub score {
$i=$s=0;$s-=$_[-1]if"@_[-2,-1]"=~m!/|X!;map{$s+=$_[$i-1],$_=/X/?($s+=$
+_[$i-2],10):10-$_[$i+1]if/\D/;$s+=$_;$i++}@_=(0,0,reverse@_);$s
}
__END__
146--> 146
330--> 300
210--> 200
210--> 200

[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: Re (tilly) 3: (Golf) Let's go bowling by tachyon
in thread (Golf) Let's go bowling by virtualsue

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