Re: [Bug-gnubg] Strange gnubg hint

[Jim Segrave]

On Sun 30 Jan 2005 (02:12 +0100), Schigolch wrote:
> Hello,
> still fairly new to gnubg, I wonder about gnubg's advice
> for X to move 21/16 6/5 (followed by 21/16 4/3,
> 21/16 3/2, 21/16 2/1) in this position:
> 
> GNU Backgammon  Position ID: rwEAAO62gQIEAA
>                 Match ID   : 8ImmAEAAEAAA
> +13-14-15-16-17-18------19-20-21-22-23-24-+     O: oooo
> | X                |   |       X  O  O  O | OO  4 points
> |                  |   |          O     O | OO  
> |                  |   |                O | OO  
> |                  |   |                O | O   
> |                  |   |                  | O  
> v|                  |BAR|                  |     5 point match (Cube: 1)
> |                  |   |                  |    
> |                  |   |                  |     
> |                  |   |          X  X    |     
> |                  |   | X  X  X  X  X    |     Rolled 51
> | X                |   | X  X  X  X  X    |     2 points
> +12-11-10--9--8--7-------6--5--4--3--2--1-+     X: You
> 
> 6/5 etc. improves my opponent's chances for a gammon
> considerably and is clearly not the best move for
> me?! Is there something
> wrong with my dbs or any setting?
> Thanks for any advice!
> Dankwart
> 
> I use:
> on disk: 1 sided bearoff db gen. by gnubg 15*6, reads 0
> in mem: 1 sided bearoff db gen. by gnubg 15*6, reads 1738045
> on disk: 2 sided bearoff db gen. by gnubg 8*6, reads 5569
> in mem: 2 sided bearoff db gen. by gnubg 6*6, reads 451
> 
> Still don't understands what it means exactly, but it may
> give you a clue...

The simple answer is that X has lost the match and no move is going to
change that. X can save himself from a gammon or a backgammon, but
with no contact and a pip count deficit of 91 to 12, X is going to
lose. If it were gnubg playing, it would offer to resign a gammon.

-- 
Jim Segrave           address@hidden