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42P-62S-53 and 42P-62S-52, more rollouts

Posted By: Nack Ballard
Date: Wednesday, 15 February 2012, at 8:55 a.m.

In Response To: Rollout Results and Commentary (Paul Weaver)

Ah, so there are early game positions hiding in this thread. Nice commentary (and Nactation) on the fifth roll position (42P-62S-53X-53R-65) as well.

I already had rollout results for the two third roll positions, which are posted below, followed by a nacbrac summary.





White is Player 2

score: 0
pip: 159
Unlimited Game
Jacoby Beaver
pip: 161
score: 0

Blue is Player 1
XGID=-a--B-DaB---dEa--c-e----B-:0:0:1:53:0:0:3:0:10
Blue to play 53

1.Rollout124/21 6/1* eq: +0.125
Player:
Opponent:
51.78% (G:18.05% B:0.62%)
48.22% (G:11.78% B:0.57%)
Conf.: 0.003 (+0.121...+0.128) - [94.7%]
Duration: 9 hours 07 minutes
2.Rollout124/21 13/8eq: +0.121 (-0.004)
Player:
Opponent:
52.30% (G:15.42% B:0.57%)
47.70% (G:10.75% B:0.43%)
Conf.: 0.003 (+0.118...+0.124) - [5.3%]
Duration: 8 hours 35 minutes
1 31104 Games rolled with Variance Reduction.
Dice Seed: 43543213
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.01





White is Player 2

score: 0
pip: 159
Unlimited Game
Jacoby Beaver
pip: 161
score: 0

Blue is Player 1
XGID=-a--B-DaB---dEa--c-e----B-:0:0:1:52:0:0:3:0:10
Blue to play 52

1.Rollout124/22 6/1* eq: +0.081
Player:
Opponent:
50.80% (G:17.91% B:0.64%)
49.20% (G:12.39% B:0.63%)
Conf.: 0.005 (+0.076...+0.085) - [99.8%]
Duration: 3 hours 14 minutes
2.Rollout124/22 13/8eq: +0.071 (-0.009)
Player:
Opponent:
51.21% (G:14.96% B:0.57%)
48.79% (G:11.43% B:0.44%)
Conf.: 0.004 (+0.067...+0.075) - [0.2%]
Duration: 2 hours 59 minutes
1 15552 Games rolled with Variance Reduction.
Dice Seed: 46547149
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.01

Here is a summary of our rollout results:

    42P-62S-53 [X S4] "<=31 (Nack)
    ....................[X S3] "<=20 (Paul)

    42P-62S-52 [X S9] "<=15 (Nack)
    ....................[X S6] "<=10 (Paul)

Key: S = Split (24/21 13/8 or 24/22 13/8), X = hit-and-split (24/21 6/1* or 24/22 6/1*). Explanation of nacbracs.

The Snowie rollout you are remembering for 42P-62S-53 was [S X6] truncated. (I cannot find a Snowie rollout for 42P-62S-52.)

Nack

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