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

BGonline.org Forums

Rollout

Posted By: Timothy Chow
Date: Sunday, 11 September 2016, at 5:09 p.m.

In Response To: Noncontact checker plays are all trivial (Timothy Chow)

This problem is obvious with QF, but the trick is making these sorts of play OTB. It's not so common for wasting a pip to be right when the alternative doesn't leave an internal empty point. However, since the 6pt is empty, there's no way to replenish the 3pt when Blue rolls a 3, so if Blue plays 8/2 3/off then to avoid missing, he has to roll 4 big numbers (4, 5, or 6) before rolling two 3's. While that's not so herculean a task, he's better off not setting himself that task at all; the "wasted" pip is unlike to cost him anything, since Blue has plenty of 2's to play (even if a gap forms on his 2pt, he can play 4/2 efficiently).

Worthy of Backgammon Funfair?





White is Player 2

score: 0
pip: 41
Unlimited Game
pip: 41
score: 0

Blue is Player 1
XGID=-FBBCA--A----------acbbad-:1:1:1:63:0:0:0:0:10
Blue to play 63

1.Rollout18/Offeq: -0.075
Player:
Opponent:		40.29% (G:0.00% B:0.00%)
59.71% (G:0.00% B:0.00%)		Conf.: ± 0.003 (-0.077...-0.072) - [100.0%]
Duration: 12.4 seconds
2.Rollout18/2 3/Offeq: -0.116 (-0.042)
Player:
Opponent:		38.50% (G:0.00% B:0.00%)
61.50% (G:0.00% B:0.00%)		Conf.: ± 0.002 (-0.119...-0.114) - [0.0%]
Duration: 10.7 seconds
1 1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.208.pre-release

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.