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[Bug-gnubg] table stakes beaver
From: |
Thomas Koch |
Subject: |
[Bug-gnubg] table stakes beaver |
Date: |
Sun, 23 Nov 2008 12:13:00 +0100 |
In order to analyse positions with table stakes using gnubg, I put together a special met (http://page.mi.fu-berlin.de/tkoch/Backgammon/limit8.xml). Now I was wondering if this position
X on roll, cube decision?
GNU Backgammon Position ID: bNsIADa8HQAAAA
Match ID : cAkAAAAAAAAA
+24-23-22-21-20-19------18-17-16-15-14-13-+ O: Alice
| O O O O | | O O | 0 points
| O O O O | | O |
| | | |
| | | |
| | | |
| |BAR| |v (Cube: 1)
X | | | |
X | X | | |
X | X X | | |
X | O O X X X | | | On roll
XX | O O X X X | | | 0 points
+-1--2--3--4--5--6-------7--8--9-10-11-12-+ X: Bob
Pip counts: O 154, X 35
Output generated Sat Nov 22 19:34:37 2008
by GNU Backgammon 0.16-devel (Text Export version 1.76)
is
a correct double/beaver even without Jacobyrule if the table stakes are
set to 8 times the initial stakes (it is on snowie 3ply)!? But of
course using a met makes gnubg work in match mode so beavers are not
allowed. Is there a way to allow for beavers even in a match? If not,
how can I deduce from the results of the rollout if a beaver would be
correct?
Cube analysis
Rollout cubeless equity +0.498 (Money: +0.499)
Cubeful equities:
1. Double, take +0.594
2. Double, pass +1.000 ( +0.406)
3. No double +0.520 ( -0.073)
Proper cube action: Double, take
Rollout details:
Centered 1-cube:
0.538 0.295 0.129 - 0.462 0.000 0.000 CL +0.498 CF +0.520
[0.003 0.002 0.002 - 0.003 0.000 0.000 CL 0.008 CF 0.017]
Player Alice owns 2-cube:
0.553 0.295 0.136 - 0.447 0.000 0.000 CL +1.067 CF +0.594
[0.004 0.003 0.002 - 0.004 0.000 0.000 CL 0.018 CF 0.027]
Thanks!
Thomas Koch
--
Backgammon in Berlin: http://berlinbg.wordpress.com
Der Backgammon Blog: http://graswurzelbackgammon.wordpress.com
- [Bug-gnubg] table stakes beaver,
Thomas Koch <=