novaBBS - rec.games.backgammon - DMP containment play

DMP containment play

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From: tchow12...@yahoo.com (Timothy Chow)
Newsgroups: rec.games.backgammon
Subject: DMP containment play
Date: Fri, 25 Mar 2022 08:45:03 -0400
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by: Timothy Chow - Fri, 25 Mar 2022 12:45 UTC

XGID=aBBBB-C--A----A---A-dbdAd-:0:0:1:43:0:0:0:1:10

X:Player 1 O:Player 2
Score is X:0 O:0 1 pt.(s) match.
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X X | | O O O X O |
| | | O O O O |
| | | O O O |
| | | O O O |
| | | |
| |BAR| |
| | O | |
| | | |
| | | X |
| | | X X X X X |
| X | | X X X X X |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 102 O: 69 X-O: 0-0/1
Cube: 1
X to play 43

---
Tim Chow

Rollout: DMP containment play

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From: tchow12...@yahoo.com (Timothy Chow)
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Subject: Rollout: DMP containment play
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by: Timothy Chow - Mon, 28 Mar 2022 03:36 UTC

XGID=aBBBB-C--A----A---A-dbdAd-:0:0:1:43:0:0:0:1:10

This position is interesting from a bot perspective, because XG 3-ply
plays 23/19 14/11 (although 14/11 9/5 has the highest 3-ply evaluation).
Slotting the 5pt looks risky when O still has a four-point board and X
has only one direct builder for his 5pt, but gammon losses don't matter
at DMP.

1. Rollout¹ 14/11 9/5 eq:+0.393
Player: 69.67% (G:1.65% B:0.02%)
Opponent: 30.33% (G:13.65% B:0.55%)
Confidence: ±0.003 (+0.391..+0.396) - [100.0%]

2. Rollout¹ 18/15 9/5 eq:+0.360 (-0.033)
Player: 68.00% (G:1.73% B:0.02%)
Opponent: 32.00% (G:13.99% B:0.28%)
Confidence: ±0.003 (+0.357..+0.363) - [0.0%]

3. Rollout¹ 23/19 14/11 eq:+0.324 (-0.069)
Player: 66.22% (G:1.54% B:0.02%)
Opponent: 33.78% (G:5.22% B:0.15%)
Confidence: ±0.002 (+0.322..+0.327) - [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, MET: Kazaross XG2

---
Tim Chow

The cost of feathers has risen, even down is up!

interests / rec.games.backgammon / DMP containment play

Subject	Author
DMP containment play	Timothy Chow
Rollout: DMP containment play	Timothy Chow