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

BGonline.org Forums

ROLLOUT:5a5a cube action against a 7-4 "backgame"

Posted By: ah_clem
Date: Friday, 15 May 2026, at 12:50 a.m.

In Response To: 5a5a cube action against a 7-4 "backgame" (ah_clem)

I find these cube decisions difficult. On one hand, I'm ahead with lots of gammons to be had. On the other, this gets turned around fairly often, so maybe I'm not good enough, or maybe I'm too good. All told, it tends to result in analysis paralysis and I wind up holding the cube because I'm not sure of anything. And 7-4 backgames don't come up enough for me to have much of a feel.

Anyway, XG is pretty clear that this is a cube and a take.





White is Player 2

score: 0
pip: 203
5 point match
pip: 130
score: 0

Blue is Player 1
XGID=aAaBbCBcB-A-bB-----cc-B---:0:0:1:00:0:0:0:5:9
Blue on roll, cube action?

Analyzed in Rollout No double Double/Take
Player Winning Chances: 61.35% (G:39.13% B:1.21%) 60.90% (G:38.69% B:1.21%)
Opponent Winning Chances: 38.65% (G:7.95% B:0.40%) 39.10% (G:7.98% B:0.70%)
Cubeless Equities +0.522 +1.198
Cubeful Equities
No double:+0.739 (-0.067)±0.018 (+0.720..+0.757)
xg Double/Take:+0.806±0.030 (+0.776..+0.835)
Double/Pass:+1.000 (+0.194)
Best Cube action: Double / Take
Rollout details
1296 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller
Double Decision confidence:100.0%
Take Decision confidence:100.0%
Duration: 13 minutes 15 seconds

eXtreme Gammon Version: 2.10, MET: Kazaross XG2

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.