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Rollout: 3 Prime situations

Posted By: Timothy Chow
Date: Friday, 2 September 2011, at 12:47 a.m.

In Response To: 3 Prime situations (joe freedman)

This was a nice post by joe freedman that didn't get much attention. I rolled out the first position, and verified that the phantom hit comes out ahead of 16/7. Of course it's clear what the idea behind the phantom hit is, but I'm a little surprised that, if the pseudocubeless numbers can be taken at face value, it seems to win more than keeping the six-prime.

Given this rollout result, I think one can fairly confidently predict that a rollout of the second position will favor 8/3(2).

		White is Player 2 score: 2 pip: 182 7 point match pip: 125 score: 0 Blue is Player 1
XGID=a-c-BBBBBB-Ab---Ad-eA-----:1:-1:1:36:0:2:0:7:10
Blue to play 36

1.	Rollout1	16/13 9/3	eq: +1.051
	Player: Opponent: 81.57% (G:41.48% B:2.47%) 18.43% (G:2.04% B:0.19%) Conf: ± 0.011 (+1.040...+1.062) Duration: 5 hours 23 minutes
2.	Rollout1	16/7	eq: +1.021 (-0.030)
	Player: Opponent: 80.52% (G:40.95% B:2.41%) 19.48% (G:1.46% B:0.16%) Conf: ± 0.011 (+1.010...+1.032) Duration: 3 hours 39 minutes
1 2232 Games rolled with Variance Reduction. Dice Seed: 2 Moves and cube decisions: 3 ply

eXtreme Gammon Version: 1.21, MET: Rockwell-Kazaross

Messages In This Thread

• 3 Prime situations
  joe freedman -- Sunday, 21 August 2011, at 2:45 p.m.
  • 3 Prime situations
    Max Levenstein -- Sunday, 21 August 2011, at 6:31 p.m.
  • 3 Prime situations
    Timothy Chow -- Monday, 22 August 2011, at 12:03 a.m.
  • Rollout: 3 Prime situations
    Timothy Chow -- Friday, 2 September 2011, at 12:47 a.m.