[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums

XG bug?

Posted By: mochy
Date: Wednesday, 10 July 2013, at 1:45 a.m.





White is Player 2

score: 0
pip: 131
Unlimited Game
Jacoby Beaver
pip: 99
score: 0

Blue is Player 1
XGID=-BBBBBbA---AcB--b--bbbb--A:0:0:1:00:0:0:3:0:10
Blue on roll, cube action?

Analyzed in XG Roller+ No double Double/Take
Player Winning Chances: 27.92% (G:6.47% B:0.09%) 27.06% (G:6.79% B:0.13%)
Opponent Winning Chances: 72.08% (G:24.95% B:1.42%) 72.94% (G:26.03% B:1.29%)
Cubeless Equities -0.640 -1.326
Cubeful Equities
No double:-0.830
Double/Beaver:-2.000 (-1.170)
Double/Pass:+1.000 (+1.830)
Best Cube action: No double / Beaver
Percentage of wrong pass needed to make the double decision right: 28.1%

eXtreme Gammon Version: 2.10

I just encounterd the position avobe. Blue is on roll. (Obvious no double and beaver)
However, the equity after the double should't be exact 2.000 I thought.

2.000 sounds like White doubles out Blue no matter what Blue rolls.
The truth is that if blue enteres it is usually no double while if she fans it is Too good.
So most likely it is more than 2.000 or less than 2.000. I just couldn't believe that the equity hit the exact 2.000 mark by luck.

So I made a rollout. During the rollout XG shows that equity of White is around 1.835, which make sense to me.
However, once I interrupt it, the main window shows that the equity 2.000 again!

Can anyone know how it happens?

Messages In This Thread

 

Post Response

Your Name:
Your E-Mail Address:
Subject:
Message:

If necessary, enter your password below:

Password:

 

 

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums is maintained by Stick with WebBBS 5.12.