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interests / rec.games.backgammon / Bearoff: forced to leave a shot 3

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* Bearoff: forced to leave a shot 3Timothy Chow
`- Rollout: Bearoff: forced to leave a shot 3Timothy Chow

1
Bearoff: forced to leave a shot 3

<strapo$dc1$2@dont-email.me>

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Bearoff: forced to leave a shot 3
Date: Mon, 7 Feb 2022 09:36:38 -0500
Organization: A noiseless patient Spider
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 by: Timothy Chow - Mon, 7 Feb 2022 14:36 UTC

XGID=-aCDCaB----------------fg-:1:-1:1:51:0:0:0:0:10

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 O | +---+
| | | O O | | 2 |
| | | O O | +---+
| | | O O |
| | | 6 7 |
| |BAR| |
| | | |
| | | X |
| | | X X X |
| | | X X X X |
| | | X O X X X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 42 O: 63 X-O: 0-0
Cube: 2, O own cube
X to play 51

---
Tim Chow

Rollout: Bearoff: forced to leave a shot 3

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: Rollout: Bearoff: forced to leave a shot 3
Date: Wed, 9 Feb 2022 09:34:06 -0500
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 by: Timothy Chow - Wed, 9 Feb 2022 14:34 UTC

XGID=-aCDCaB----------------fg-:1:-1:1:51:0:0:0:0:10

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 O | +---+
| | | O O | | 2 |
| | | O O | +---+
| | | O O |
| | | 6 7 |
| |BAR| |
| | | |
| | | X |
| | | X X X |
| | | X X X X |
| | | X O X X X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 42 O: 63 X-O: 0-0
Cube: 2, O own cube
X to play 51

6/5*/off gets another checker off but leaves 14 return shots instead
of 13, while 6/1* 2/1 creates a four-point board and probably has
less future short jeopardy. With O's board being crunched, the extra
return shot is not a big deal compared to the extra checker off.

1. Rollout¹ 6/5* 5/Off eq:+1.153
Player: 94.70% (G:26.61% B:0.90%)
Opponent: 5.30% (G:0.00% B:0.00%)
Confidence: ±0.002 (+1.151..+1.155) - [100.0%]

2. Rollout¹ 6/1* 2/1 eq:+1.100 (-0.053)
Player: 93.69% (G:24.38% B:0.34%)
Opponent: 6.31% (G:0.00% B:0.00%)
Confidence: ±0.003 (+1.098..+1.103) - [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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