RE: [computer-go] Super Ko on KGS ignores player to move

["David Fotland" <fotland@xxxxxxxxxxxxxxx>]

Suicide is legal under ING SST rules.  There was a program at an
Ing-sponsored tournament that did exactly that.  it committed suicide
deliberately to win games, and it worked against at least one program.  It
did not work in the game against Many Faces of Go, and the program author
looked dissapointed.

Ing sponsored the major computer go tournament for over 15 years, so all of
the older programs played by these rules, and I would conder them a major
rule set.  The Ing foundation still sponsors many amateur tournaments with
these rules.

The ko rules in SST are interesting, since they try to be complete, without
introducing the problems caused by superko.

David

> -----Original Message-----
> From: computer-go-bounces@xxxxxxxxxxxxxxxxx 
> [mailto:computer-go-bounces@xxxxxxxxxxxxxxxxx] On Behalf Of 
> Erik van der Werf
> Sent: Monday, August 15, 2005 2:59 AM
> To: computer-go
> Subject: Re: [computer-go] Super Ko on KGS ignores player to move
> 
> 
> Hi Nick,
> 
> I thought of that example, and that's why I wrote "major rule 
> sets". AFAIK suicide is illegal under all major rule sets.
> 
> Best,
> Erik
> 
> 
> On 8/15/05, Nick Wedd <nick@xxxxxxxxxxxxxxxxx> wrote:
> > In message <262b2f900508150221303db0df@xxxxxxxxxxxxxxxxx>, 
> Erik van der 
> > Werf <erikvanderwerf@xxxxxxxxxxxxxxxxx> writes
> > 
> > < snip >
> > 
> > >When I organise a tournament I have yet another objective. Then I 
> > >want my rules to be as flexible as possible, so as to 
> allow all moves 
> > >that are legal under any of the major rule sets. I would 
> really hate 
> > >it if two programs could not play a game due to small 
> > >mistakes/differences in the exact implementation of some obscure 
> > >rules. Consequently, I would not enforce superko, although 
> programs 
> > >would be perfectly free to use it internally as long as they would 
> > >accept all input from other programs that might play by different 
> > >rules.
> > 
> > I don't disagree with this objective, but I wonder if your 
> flexibility 
> > is the best way to achieve it.
> > 
> > Suppose your tournament rules allow suicide.  A weak 
> program may try 
> > to take advantage of this, by making one suicide-move in 
> each game.  
> > If its opponent refuses to acknowledge such a move, then the weak 
> > program will get a win when its opponent is unable to play on.
> > 
> > Nick
> > --
> > Nick Wedd    nick@xxxxxxxxxxxxxxxxx
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> > http://www.computer-go.org/mailman/listinfo/computer-go/
> >
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