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21$-54 rollout data (equities, links)

Posted By: Nack Ballard
Date: Thursday, 22 April 2010, at 7:50 p.m.

In Response To: Wild rollout results (bug?) (Nack Ballard)

Thanks for the rollouts, Chase and Neil.

Below is the 21$-54 data so far. (S = Split 24/20* 13/8, R = Run 24/20*/15.)

Snowie .. [S R12] 10k, .177, .165, seed R (Nilsson)
GnuBG ..[S R2.7] 46k, .1368, .1340, seed 1049277888 (Stick, v14.3d)

XG 3-ply [S R38] 10k, .175 .137, seed 2 (Chase)
XG 3-ply [S R40] 10k, .176 .136, seed 2 (Chase, no Jacoby)
XG 3-ply [S R27] 10k, .167 .140, seed 2 (NeilK)
XG 3-ply [S R17] 10k, .165 .149, seed R (Chase)
XG 3-ply [S R13]103k, .158 .143, seed R (NeilK)
XG 4-ply .. [S R7] 19k, .152 .145, seed R (NeilK, v1.14 pre-release)

In short, the margins (relative equities) range from 2.7 to 40 (meaning .0027 to .0400)!

I don't normally include absolute equities because it clutters up the page, distracting from analysis. (One- and two-digit relative equities are much easier to manage.) However, it is obvious, as Chase says, that something strange is going on with this position, so for Daniel or anyone who might want to help dissect or investigate this problem, I have included absolute equities and seed numbers to the right of the usual nacbrac; I've also provided links for each rollout.

For GnuBG's link, navigate to: 2nd Roll, Opening 21 Replies, 21$ 54. This rollout was done with an old version, 0.14.3-devel, which means there is a non-trivial chance the file is corrupt. The only way I know to find out for certain is to reroll it (I have v0.90-ming) 46k trials, but that's a big CPU investment. I plan to do a shorter rollout (and/or maybe David Rockwell will want to do one with Supremo setting) just to confirm/deny that the equities are in the same (low) ball park (absolute .135 and/or relative .003.)

Nack

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