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Double 1's

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Timothy Chow

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Feb 17, 2024, 4:49:12 PMFeb 17
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XGID=-aB---D-B--AeD---c-ea--AA-:0:0:1:11:0:0:0:0:10

Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O | | O O X X |
| X O | | O |
| X O | | O |
| X | | O |
| | | O |
| |BAR| |
| O | | |
| O | | X |
| O | | X |
| O X | | X X |
| O X X | | X X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 154 O: 148 X-O: 0-0
Cube: 1
X to play 11

---
Tim Chow

Timothy Chow

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Feb 20, 2024, 9:14:36 AMFeb 20
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Hitting your opponent's 5pt slot is usually better than switching points
to hit on your own 1pt. Here, though, switching points is accompanied by
making our own 5pt and also gives us a good chance of hitting *both*
blots. For comparison, see the variant below.

1. Rollout¹ 6/5(2) 2/1*(2) eq:+0.377
Player: 55.86% (G:24.39% B:0.42%)
Opponent: 44.14% (G:10.51% B:0.51%)
Confidence: ±0.016 (+0.360..+0.393) - [100.0%]

2. Rollout¹ 23/20* 11/10 eq:+0.302 (-0.075)
Player: 56.12% (G:19.46% B:0.79%)
Opponent: 43.88% (G:10.33% B:0.45%)
Confidence: ±0.015 (+0.287..+0.317) - [0.0%]

3. Rollout¹ 24/20* eq:+0.286 (-0.091)
Player: 55.96% (G:18.36% B:0.83%)
Opponent: 44.04% (G:10.35% B:0.45%)
Confidence: ±0.014 (+0.272..+0.299) - [0.0%]

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

eXtreme Gammon Version: 2.19.211.pre-release

-------
Variant
-------

XGID=-aB---D-B--AeD---c-ea---B-:0:0:1:11:0:0:0:0:10

Score is X:0 O:0. Unlimited Game
+13-14-15-16-17-18------19-20-21-22-23-24-+
| X O | | O O X |
| X O | | O X |
| X O | | O |
| X | | O |
| | | O |
| |BAR| |
| O | | |
| O | | X |
| O | | X |
| O X | | X X |
| O X X | | X X O |
+12-11-10--9--8--7-------6--5--4--3--2--1-+
Pip count X: 155 O: 148 X-O: 0-0
Cube: 1
X to play 11

1. Rollout¹ 24/20* eq:+0.298
Player: 55.93% (G:18.69% B:0.72%)
Opponent: 44.07% (G:9.96% B:0.47%)
Confidence: ±0.013 (+0.285..+0.311) - [100.0%]

2. Rollout¹ 6/5(2) 2/1*(2) eq:+0.224 (-0.074)
Player: 52.92% (G:22.84% B:0.48%)
Opponent: 47.08% (G:11.47% B:0.62%)
Confidence: ±0.016 (+0.207..+0.240) - [0.0%]
Duration: 5 minutes 46 seconds

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

eXtreme Gammon Version: 2.19.211.pre-release

---
Tim Chow
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