Re: [Bug-gnubg] Use of Two-Sided DB in matchesgwEAQCoAAAAAAA:cAmgACAAGAAA
GNU Backgammon Position ID: gwEAQCoAAAAAAA
Match ID : cAmgACAAGAAA
+24-23-22-21-20-19------18-17-16-15-14-13-+ O: gnubg
OOO | O O | | | 2 points
OO | O O | | |
OO | | | |
OO | | | |
OO | | | |
| |BAR| |v 5 point match (Cube: 1)
XX | | | |
XX | | | |
XX | | | |
XX | | | | On roll
XXX | X X X X | | | 3 points
+-1--2--3--4--5--6-------7--8--9-10-11-12-+ X: Neil
Player Opponent
Position 169 104
Cubeless equity : +0.4707
Owned cube : +0.6734
Centered cube : +0.6598
Opponent owns cube : +0.4490
Gives directly the probability of winning the match after Double/ Take and
Automatic Redouble.
1.4707 divided by two = 0.73535.
What is the logic of using a more complicated formula here that is known to
produce the wrong answer?
----- Original Message -----
From: Michael Petch
To: Neil Robins ; [email protected]
Sent: Saturday, September 05, 2009 10:04 AM
Subject: Re: [Bug-gnubg] Use of Two-Sided DB in matches
Whoa,
It may be that I am dead tired and probably missing something. Can you give
me the Gnubg ID (just the position) for your stats below? Because we are not
looking at the same position. And I now see where all my confusion is coming
from. Originally on BGO you posted this:
http://www.bgonline.org/forums/webbbs_config.pl?noframes;read=47213
Now since I don't have anyway of easily converting XBGid's to Gnubg I decided
to use the GnubgID from the data you retrieved from Gnubg in this post:
http://www.bgonline.org/forums/webbbs_config.pl?noframes;read=47327
I have been blindly assuming that the 2 position were equal. After you posted
below I realized they are different. In XBG you have the on roll person
opposite to what you have for GnuBG. I have been copying and pasting the
gnubgid out of this post all along. Its not the same.
However I just discovered in this post:
http://www.bgonline.org/forums/webbbs_config.pl?noframes;read=47359
That its the same as your XBG. Can you clarify which position we are looking
at? Right now, I am not analyzing the same one you are. I am confused. Thanks
On 05/09/09 2:06 AM, "Neil Robins" <[email protected]> wrote:
Those are the figures for opponent on roll.
With you on roll it's:
Player Opponent
Position 169 104
Cubeless equity : +0.4707
Owned cube : +0.6734
Centered cube : +0.6598
Opponent owns cube : +0.4490
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