Please take the ensuing rules argument/discussion off-list. The last
ko rules discussion resulted in way too many e-mails in everyone's
inbox.
Sent from my iPhone
On Apr 14, 2009, at 2:06 PM, Robert Jasiek <jas...@snafu.de> wrote:
Richard Brown wrote:
And what is the _reason_ to leave out the information of whose turn
it is?
Elegant, but not a _rationale_.
One can do two basic things with information: use it or ignore it.
Unless we set other principles as a context, we cannot judge which
of the two is better.
You advocate using information. At the same time, you ignore a lot
of information. You ignore much more than you use. Why? And why then
do you advocate on using a particular piece of information but not
the other available information as well? Which additional
information? The sequence of situations, which are the combination
of a position and a player having the turn, since the first
occurrence of a position / situation about to be recreated. We do
not want to use that much information - rather we want to leave out
quite some information. There is a rationale behind leaving out also
the who-has-the-turn information (e.g., having the minimal rule that
works like a superko rule) and there is a rationale behind not
leaving out it (e.g., endless recycling of
alternating moves is expressed more easily as multiples of situational
cycles). But this does not answer yet why you consider it better to
also
consider the turn.
It is a ko rule that depends on one type of information only: The
colour
of each intersection.
And what is the _reason_ to leave out the very pertinent information
of whose turn it is?
No _rationale_ for that.
It is, e.g., to have the minimal rule that works like a superko
rule. Or: To have that variant of a superko rule that by far most go
players
that have heard about superko imagine as the superko rule.
And... Oh, never mind, of course you must be right. You're the
expert.
Being an expert does not replace the necessity of providing reasons.
Not
being an expert is not a good excuse for not providing reasons,
either.
Also you emphasize rationale, so we should exchange not just opinions
but reasons.
To offer an on-topic reason: positional superko requires less storage
and execution time than situational superko.
--
robert jasiek
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