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42P-54S-43K-21-32@-51H-62U-54T-31

Posted By: Nack Ballard
Date: Wednesday, 19 March 2014, at 12:35 p.m.

In Response To: Blyou to play 3-1 — 2-ply GnuBg1 Truncated Rollouts (Taper_Mike)





White is Player 2

score: 0
pip: 146
Unlimited Game
Jacoby Beaver
pip: 182
score: 0

Blue is Player 1
XGID=-a--B-D-----dE---eAe--BA--:0:0:1:31:0:0:3:0:10

42P-54S-43K-21-32@-51H-62U-54T-31


I don't know what the actual game sequence was, but this one works. I haven't checked to see if Blue's seventh roll move 62U is well played (within .02 -- and also you may care less as there is the issue of different scores), but even if not it seems to be a common OTB error. With the 6, coming down is typically better than coming up when one has multiple checkers back and a tall midpoint.

For the fourth+sixth roll combination, you can change White's 21+51H to 1+62H or 1+53H, which saves a character (and fanning with 41 or 61 is twice as likely as entering with 21), though in that case Blue's 32@ might be only well played and not best.

I'm unfamiliar with the nuances of Gnu settings, so feel free to upgrade the blue-symbol info below. Here is a summary of your rollout results:

........42P-54S-43K-21-32@-51H-62U-54T-31

............. [$ W20 D22] ./.3t
............d[$ W19 D39] ./.3t
............s[D R2 Z5 r12 @20 W21 $25] ./.3t
............g[$ W29 D43] ./.3t

The latter three scores are ordered in the way that Snowie and XG do (–1–1, –1–2, –2–1).

In short, your Gnu data reports that $ (Slot, 13/10 6/5) is best, except at gammon save where D (Down, 13/9) is best and $ comes in seventh.

Nack

........Nactation tutorial ........(For larger text, click on the double-arrow to the right of “Bookmarks”)
........Explanation of nacbracs

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