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Threes

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Subject: Threes
From: zimbrook...@gmail.com (Robert Zimmerman)
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by: Robert Zimmerman - Wed, 19 Apr 2023 12:24 UTC

XGID=-aaBB-B-B---cD--ac-d-b-AB-:0:0:1:33:0:0:3:0:10

Score is X:0 O:0. Unlimited Game, Jacoby Beaver
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O O | | O O X X |
| X O | | O O X |
| X O | | O |
| X | | O |
| | | |
| |BAR| |
| | | |
| | | |
| O | | |
| O X | | X X X |
| O X | | X X X O O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 165 O: 151 X-O: 0-0
Cube: 1
X to play 33

Re: Threes

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Re: Threes
Date: Wed, 19 Apr 2023 08:33:51 -0400
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by: Timothy Chow - Wed, 19 Apr 2023 12:33 UTC

On 4/19/2023 8:24 AM, Robert Zimmerman wrote:
> XGID=-aaBB-B-B---cD--ac-d-b-AB-:0:0:1:33:0:0:3:0:10
>
> Score is X:0 O:0. Unlimited Game, Jacoby Beaver
> +13-14-15-16-17-18------19-20-21-22-23-24-+
> | X O O | | O O X X |
> | X O | | O O X |
> | X O | | O |
> | X | | O |
> | | | |
> | |BAR| |
> | | | |
> | | | |
> | O | | |
> | O X | | X X X |
> | O X | | X X X O O |
> +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count X: 165 O: 151 X-O: 0-0
> Cube: 1
> X to play 33

The candidates I would consider are 13/7(2), 8/2*(2), 13/10(2) 8/5(2),
and 23/20 13/10 8/5(2). Making the 5pt seems better than making the
bar point, since it gives us such a strong board as well as a solid
four-prime. But I'm tempted to PoH. It puts O on the bar against a
four-point board, and gains a tempo that O might otherwise use to do
something useful (e.g., escape or make a point). We don't have much
ammunition for a blitz, but this could turn into a blitz, and even if
it doesn't, I think the gain of time is useful.

---
Tim Chow

Re: Threes

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Subject: Re: Threes
From: zimbrook...@gmail.com (Robert Zimmerman)
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by: Robert Zimmerman - Fri, 21 Apr 2023 13:05 UTC

On Wednesday, April 19, 2023 at 8:24:39 AM UTC-4, Robert Zimmerman wrote:
> XGID=-aaBB-B-B---cD--ac-d-b-AB-:0:0:1:33:0:0:3:0:10
>
> Score is X:0 O:0. Unlimited Game, Jacoby Beaver
> +13-14-15-16-17-18------19-20-21-22-23-24-+
> | X O O | | O O X X |
> | X O | | O O X |
> | X O | | O |
> | X | | O |
> | | | |
> | |BAR| |
> | | | |
> | | | |
> | O | | |
> | O X | | X X X |
> | O X | | X X X O O |
> +12-11-10--9--8--7-------6--5--4--3--2--1-+
> Pip count X: 165 O: 151 X-O: 0-0
> Cube: 1
> X to play 33
The combination of what looked like an underpowered blitz and having three back checkers was enough to steer me away from the PoH play. I played 23/20 13/10 8/5(2), but that really cedes a lot. Your point about tempo is on the mark, Tim.

Bob

1. Rollout¹ 8/2*(2) eq:+0.342
Player: 55.79% (G:25.68% B:1.31%)
Opponent: 44.21% (G:13.16% B:0.89%)
Confidence: ±0.024 (+0.318..+0.365) - [100.0%]
Duration: 2 minutes 06 seconds

2. Rollout² 13/10(2) 8/5(2) eq:+0.246 (-0.095)
Player: 55.29% (G:21.55% B:1.23%)
Opponent: 44.71% (G:15.07% B:1.06%)
Confidence: ±0.036 (+0.210..+0.282) - [0.0%]
Duration: 2 minutes 18 seconds

3. Rollout¹ 23/20 13/10 8/5(2) eq:+0.243 (-0.098)
Player: 55.14% (G:20.88% B:1.05%)
Opponent: 44.86% (G:14.19% B:1.03%)
Confidence: ±0.023 (+0.220..+0.266) - [0.0%]
Duration: 2 minutes 15 seconds

eXtreme Gammon Version: 2.10

You have literary talent that you should take pains to develop.

interests / rec.games.backgammon / Threes

Subject	Author
Threes	Robert Zimmerman
Re: Threes	Timothy Chow
Re: Threes	Robert Zimmerman