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If God didn't mean for us to juggle, tennis balls wouldn't come three to a can.

interests / rec.games.backgammon / Just make the bar point?

SubjectAuthor
* Just make the bar point?Timothy Chow
+- Re: Just make the bar point?ah...Clem
`- Rollout: Just make the bar point?Timothy Chow

1
Just make the bar point?

<saorq0$caa$2@dont-email.me>

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https://www.novabbs.com/interests/article-flat.php?id=6608&group=rec.games.backgammon#6608

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Path: i2pn2.org!i2pn.org!eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail
From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Just make the bar point?
Date: Sun, 20 Jun 2021 21:59:26 -0400
Organization: A noiseless patient Spider
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 by: Timothy Chow - Mon, 21 Jun 2021 01:59 UTC

XGID=-bACa-C-C---bC---a-cBbbb--:0:0:1:61:0:0:0:0:10
63cd05d53e50fe04888e5e7eb1f59ed5a7034e6af2f9fa1d3b6

X:Player 1 O:Player 2
Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O | | O X O O O |
| X | | O X O O O |
| X | | O |
| | | |
| | | |
| |BAR| |
| | | |
| | | |
| X | | X X |
| O X | | X X O |
| O X | | X O X X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 132 O: 139 X-O: 0-0
Cube: 1
X to play 61

Sneak preview of next problem:
Bar point or hit twice?
33624236cdb9c6d97069976b315c07db0942e62a91011b26489706a3
---
Tim Chow

Re: Just make the bar point?

<savr0q$7tt$3@dont-email.me>

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From: ah_c...@ymail.com (ah...Clem)
Newsgroups: rec.games.backgammon
Subject: Re: Just make the bar point?
Date: Wed, 23 Jun 2021 13:28:56 -0400
Organization: A noiseless patient Spider
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 by: ah...Clem - Wed, 23 Jun 2021 17:28 UTC

On 6/20/2021 9:59 PM, Timothy Chow wrote:
> XGID=-bACa-C-C---bC---a-cBbbb--:0:0:1:61:0:0:0:0:10
> 63cd05d53e50fe04888e5e7eb1f59ed5a7034e6af2f9fa1d3b6
>
> X:Player 1   O:Player 2
> Score is X:0 O:0. Unlimited Game
>  +13-14-15-16-17-18------19-20-21-22-23-24-+
>  | X           O    |   | O  X  O  O  O    |
>  | X                |   | O  X  O  O  O    |
>  | X                |   | O                |
>  |                  |   |                  |
>  |                  |   |                  |
>  |                  |BAR|                  |
>  |                  |   |                  |
>  |                  |   |                  |
>  |             X    |   | X        X       |
>  | O           X    |   | X        X     O |
>  | O           X    |   | X     O  X  X  O |
>  +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count  X: 132  O: 139 X-O: 0-0
> Cube: 1
> X to play 61

Yes, I would just make the bar point. Seems more valuable than the two
point and if I make the two point I either have to expose a blot of put
a spare on the deuce, neither of which seem to be appetizing.

13/7 8/7

Rollout: Just make the bar point?

<sb1v3t$tic$1@dont-email.me>

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Rollout: Just make the bar point?
Date: Thu, 24 Jun 2021 08:51:08 -0400
Organization: A noiseless patient Spider
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 by: Timothy Chow - Thu, 24 Jun 2021 12:51 UTC

XGID=-bACa-C-C---bC---a-cBbbb--:0:0:1:61:0:0:0:0:10
63cd05d53e50fe04888e5e7eb1f59ed5a7034e6af2f9fa1d3b6

X:Player 1 O:Player 2
Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O | | O X O O O |
| X | | O X O O O |
| X | | O |
| | | |
| | | |
| |BAR| |
| | | |
| | | |
| X | | X X |
| O X | | X X O |
| O X | | X O X X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 132 O: 139 X-O: 0-0
Cube: 1
X to play 61

XG plays the ugly-looking 8/2 3/2. X has the weaker board with fewer
checkers back, so that argues for a safe play. Another problem with
13/7 8/7 is that it leaves X stripped, so he has a good chance of
re-blotting.

1. Rollout¹ 8/2 3/2 eq:+0.175
Player: 54.00% (G:14.54% B:0.63%)
Opponent: 46.00% (G:11.92% B:0.33%)
Confidence: ±0.012 (+0.163..+0.188) - [100.0%]

2. Rollout¹ 13/7 8/7 eq:+0.114 (-0.061)
Player: 52.86% (G:14.16% B:0.68%)
Opponent: 47.14% (G:12.53% B:0.42%)
Confidence: ±0.012 (+0.102..+0.126) - [0.0%]

¹ 1296 Games rolled with Variance Reduction.
Dice Seed: 271828
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.19.207.pre-release

---
Tim Chow

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