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interests / rec.games.backgammon / Rollout: Break the bar-point anchor? 2

SubjectAuthor
* Break the bar-point anchor? 2Timothy Chow
+- Re: Break the bar-point anchor? 2badgolferman
`- Rollout: Break the bar-point anchor? 2Timothy Chow

1
Break the bar-point anchor? 2

<se0sl9$j6d$2@dont-email.me>

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Break the bar-point anchor? 2
Date: Fri, 30 Jul 2021 08:51:52 -0400
Organization: A noiseless patient Spider
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 by: Timothy Chow - Fri, 30 Jul 2021 12:51 UTC

XGID=-BCBBBB-----b-b---Bbbbbab-:0:0:1:53:0:0:0:0:10
e29e6437917197d4f98667bbebbaea82f851338d286d2348630

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-+
| O X | | O O O O O O |
| O X | | O O O O O |
| | | |
| | | |
| | | |
| |BAR| |
| | | |
| | | |
| | | X |
| O | | X X X X X X |
| O | | X X X X X X |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 80 O: 88 X-O: 0-0
Cube: 1
X to play 53

Sneak preview of next problem:
Give up the 10pt?
e3f9fa3f71753ad073c16f677e7e2b8e49d7b8667f052367c4bce473
---
Tim Chow

Re: Break the bar-point anchor? 2

<xn0n0zwo9egjtgo001@nntp.aioe.org>

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From: REMOVETH...@gmail.com (badgolferman)
Newsgroups: rec.games.backgammon
Subject: Re: Break the bar-point anchor? 2
Date: Fri, 30 Jul 2021 13:33:21 -0000 (UTC)
Organization: Aioe.org NNTP Server
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 by: badgolferman - Fri, 30 Jul 2021 13:33 UTC

Timothy Chow wrote:

>XGID=-BCBBBB-----b-b---Bbbbbab-:0:0:1:53:0:0:0:0:10
>e29e6437917197d4f98667bbebbaea82f851338d286d2348630
>
>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-+
> | O X | | O O O O O O |
> | O X | | O O O O O |
> | | | |
> | | | |
> | | | |
> | |BAR| |
> | | | |
> | | | |
> | | | X |
> | O | | X X X X X X |
> | O | | X X X X X X |
> +12-11-10--9--8--7-------6--5--4--3--2--1-+
>Pip count X: 80 O: 88 X-O: 0-0
>Cube: 1
>X to play 53
>
>Sneak preview of next problem:
>Give up the 10pt?
>e3f9fa3f71753ad073c16f677e7e2b8e49d7b8667f052367c4bce473
>---
>Tim Chow

Just because you've posted this I'm 100% sure the bot says to run one
of them. I just don't know if I could...

Rollout: Break the bar-point anchor? 2

<se7aik$hga$1@dont-email.me>

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Rollout: Break the bar-point anchor? 2
Date: Sun, 1 Aug 2021 19:26:09 -0400
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 by: Timothy Chow - Sun, 1 Aug 2021 23:26 UTC

XGID=-BCBBBB-----b-b---Bbbbbab-:0:0:1:53:0:0:0:0:10
e29e6437917197d4f98667bbebbaea82f851338d286d2348630
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-+
| O X | | O O O O O O |
| O X | | O O O O O |
| | | |
| | | |
| | | |
| |BAR| |
| | | |
| | | |
| | | X |
| O | | X X X X X X |
| O | | X X X X X X |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 80 O: 88 X-O: 0-0
Cube: 1
X to play 53

Badgolferman wrote, "I'm 100% sure the bot says to run one of them."
Actually, XG runs *both* of them---it's fewer shots that way. True,
it's two blots, but X is dead in the water if even one blot is hit
and he fails to hit back. It is important, of course, that O has a
blot in her board so that X has a chance to hit back from the bar.
Without that blot, XG plays safe and rips up the board.

1. Rollout¹ 18/15 18/13 eq:-0.009
Player: 47.56% (G:8.51% B:0.18%)
Opponent: 52.44% (G:10.07% B:0.24%)
Confidence: ±0.007 (-0.016..-0.003) - [100.0%]

2. Rollout¹ 6/3 6/1 eq:-0.159 (-0.150)
Player: 45.41% (G:2.50% B:0.04%)
Opponent: 54.59% (G:4.34% B:0.09%)
Confidence: ±0.009 (-0.167..-0.150) - [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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