Re: computer-go: Computer Go Tournament Program

[Don Dailey <drd@xxxxxxxxxxxxxxxxxxxxx>]

   Date: Tue, 3 Jul 2001 12:17:02 -0400
   From: John Tromp <tromp@xxxxxxxxxxxxxxxxx>

   On Tue, Jul 03, 2001 at 08:43:21AM -0400, Don Dailey wrote:
   > I'm   asking a lot  of  questions because I   intend to implement this
   > protocol and would like to get some  kind of general consensous before
   > I proceed.
   > 
   > Here is  what I think we have  so far with  some clarifications, and a
   > little protocol of my  own (which does't really  change this  from the
   > Tromp/Taylor agreement extension) :
   > 
   >   
   >  .  You can optionally give a score with a pass move.
   > 
   >  .  Game is over on 2 consecutive passes if neither gives a
   >     score or both sides give scores that are in agreement.
   > 
   >  .  Game is over on 4 consecutive passes regardless of what scores
   >     are given.
   > 
   > 
   > This seems pretty simple and workable.  Do you agree?

   Yes, in effect, not providing a score with a pass will default to the
   as-is score. Then every pass can has an associated score and the above
   2 pass clause can be simplified.

   There is one ambiguity left in the above:
   suppose a game goes
   ....
   move
   pass 1
   pass -1
   pass 2
   pass 2

   where the as-is score is 0. then the game is ended by the 4pass clause,
   not the 2pass clause. in fact, the proposed score of any 3rd pass never
   gets used...

   regards,
   -John



How about this?

    TT = Tromp/Taylor
    implied score = score calculated by TT rules.
    =================	

 .  A score is either provided, or implied with any pass move.  

 .  2 consecutive passes end the game if the coresponding scores
    agree.

 .  The game ends after 4 consecutive passes regardless of score
    agreement.  In this case the final score is calculated according 
    to TT.



Just to be clear, when you pass  you can either  provide a score to go
with your pass move,  or accept the  default score which is calculated
by Tromp/Taylor scoring.

If two consecutive passes have associated  scores that agree, the game
ends with that being the final score.

The game  always ends after  4 consecutive  passes, regarless  of what
scores are assocated with the previous pass moves.


Don