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Rollout Results Posted: 21S-31P-52 and 21S-42P-52

Posted By: Paul Weaver
Date: Wednesday, 30 May 2012, at 7:22 p.m.

I plan to extend the rollout of 21S-31P-52 and post it tomorrow.

I agree that David did an outstanding job in his analysis.

Comment for Miran: I would recommend that you play your opening 21 by slotting, especially if you are a stronger player than your opponent (and at least 90% of all backgammon players are stronger than their current opponent). Stick, of course, is always stronger than his opponent. I know this for a fact because he said so in one of his posts. It has been a very long time (many years) since I was stronger than an opponent.

Question for XG or NeilKaz or Chris Yep or anyone else who knows: Check out the fourth line from the bottom in the blue below. The name "Chris Yep" appears. Does this mean he has done a rollout of this and other third roll positions that are entered into the XG "book?"





White is Player 2

score: 0
pip: 163
Unlimited Game
Jacoby Beaver
pip: 164
score: 0

Blue is Player 1
XGID=-b----E-C--AeD---b-db--AA-:0:0:1:52:0:0:3:0:10
Blue to play 52

1.Rollout113/11 13/8eq: -0.238
Player:
Opponent:		44.73% (G:12.76% B:0.63%)
55.27% (G:17.98% B:0.82%)		Conf.: ± 0.009 (-0.246...-0.229) - [55.2%]
Duration: 1 hour 14 minutes
2.Rollout223/18 13/11eq: -0.238 (-0.001)
Player:
Opponent:		45.24% (G:11.15% B:0.60%)
54.76% (G:18.17% B:0.80%)		Conf.: ± 0.008 (-0.247...-0.230) - [44.8%]
Duration: 1 hour 19 minutes
3.Book323/18 11/9eq: -0.363 (-0.125)
Player:
Opponent:		42.23% (G:10.75% B:0.54%)
57.77% (G:19.77% B:0.95%)		Conf.: ± 0.004 (-0.367...-0.358) - [0.0%]
4.3-ply24/22 13/8eq: -0.289 (-0.052)
Player:
Opponent:		43.14% (G:11.31% B:0.55%)
56.86% (G:17.82% B:0.82%)
5.3-ply13/8 11/9eq: -0.290 (-0.052)
Player:
Opponent:		42.95% (G:11.40% B:0.54%)
57.05% (G:17.62% B:0.85%)
1 4466 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

2 4467 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

3 Generated by Christopher Yep on 7/16/2011 using eXtreme Gammon 2.00
20736 Games rolled with Variance Reduction.
Dice Seed: 11627108
Moves and cube decisions: 3-ply

eXtreme Gammon Version: 2.03





White is Player 2

score: 0
pip: 161
Unlimited Game
Jacoby Beaver
pip: 164
score: 0

Blue is Player 1
XGID=-b----E-C--AeD---b-d-b-AA-:0:0:1:52:0:0:3:0:10
Blue to play 52

1.Rollout113/11 13/8eq: -0.155
Player:
Opponent:		46.72% (G:13.64% B:0.73%)
53.28% (G:17.72% B:0.80%)		Conf.: ± 0.008 (-0.164...-0.147) - [100.0%]
Duration: 1 hour 17 minutes
2.Rollout223/18 13/11eq: -0.196 (-0.041)
Player:
Opponent:		46.40% (G:11.94% B:0.66%)
53.60% (G:19.29% B:0.73%)		Conf.: ± 0.008 (-0.204...-0.187) - [0.0%]
Duration: 1 hour 22 minutes
3.Book323/18 11/9eq: -0.322 (-0.167)
Player:
Opponent:		43.31% (G:11.24% B:0.57%)
56.69% (G:19.95% B:0.95%)		Conf.: ± 0.004 (-0.326...-0.318) - [0.0%]
4.3-ply24/22 13/8eq: -0.228 (-0.072)
Player:
Opponent:		44.79% (G:11.55% B:0.57%)
55.21% (G:17.31% B:0.78%)
5.3-ply13/8 11/9eq: -0.238 (-0.083)
Player:
Opponent:		44.43% (G:11.88% B:0.56%)
55.57% (G:17.67% B:0.86%)
1 4461 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

2 4460 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

3 Generated by Christopher Yep on 7/16/2011 using eXtreme Gammon 2.00
20736 Games rolled with Variance Reduction.
Dice Seed: 11627108
Moves and cube decisions: 3-ply

eXtreme Gammon Version: 2.03

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