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[Bug-gnubg] bearoff equity bug
From: |
Ned Cross |
Subject: |
[Bug-gnubg] bearoff equity bug |
Date: |
Wed, 4 Dec 2002 11:21:09 -0800 |
Build 02Dec01, WinME. (with "perfect"
bearoff db gnubg_ts0.bd dated Dec01, size 6671kb).
I'd thought the bearoff problems had
cleared up after I reloaded the program and database with the late Dec01 build,
but GNUbg has lost it here. Not a big deal for the analysis since it's a
hopeless last-roll situation, but it sure throws off the statistics, and could
be an indication of problems elsewhere.
Ned
Move number 66: X to play 53
GNU Backgammon Position ID:
BAAAXB0AAAAAAA
Match ID :
UYkOAOAASAAA
+13-14-15-16-17-18------19-20-21-22-23-24-+
O:
|
| |
O | OOO 14
points
|
|
|
| OOO
|
|
|
| OOO
|
|
|
| OOO
|
|
|
| OO
v|
|BAR|
|
|
|
|
| X
|
|
|
| X
|
| |
X X | X
|
| |
X X | XX Rolled
53
|
| | X X X X |
XX 9
points
+12-11-10--9--8--7-------6--5--4--3--2--1-+
X: (Cube: 2)
Pip counts: O 3, X 20
* X moves 4/off 3/off
Cube analysis
2-ply cubeless
equity -0.250
0.375 0.000 0.000 - 0.625 0.000 0.000
1. No
double
-0.250
2. Double, pass
+1.000 ( +1.250)
3. Double,
take -0.500 (
-0.250)
Proper cube action: No redouble, beaver (16.7%)
Alert: very bad
move ( -1.000)
Rolled 53
(+0.000):
1. Cubeful 2-ply 4/1
4/off
Eq.: +0.000
0.500 0.000 0.000 -
0.500 0.000 0.000
* ?? Cubeful 2-ply 4/off
3/off
Eq.: -1.000 ( -1.000)
0.000 0.000
0.000 - 1.000 0.000 0.000
Output generated Wed Dec 04
10:52:36 2002
by GNU Backgammon 0.12 (Text Export version
1.30)