[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums

63S-32 — What order is best for plays in a nacbrac?

Posted By: Nack Ballard
Date: Saturday, 31 December 2011, at 12:34 a.m.

In Response To: 63S-32 — What order is best for plays in a nacbrac? (Taper_Mike)


2O ' ' ' '5X '3X '1X '5O

1X ' ' ' '5O1X3O ' ' '4X


Well spotted, Mike.

There are actually two different Snowie rollouts. I believe that neither was ever posted (though I'm certainly happy to do so, on request). Here is the data:

    [W Z2 S4 U6 T24 H26 $28 %35 c52 e56 &77] ~20******10 5
    [U Z6 W6 S14 $33 T23 H31 %38] ~10***7*5

In newer posts, I often list each rollout result separately. However, in older posts I was in the habit of combining them. In this case, the fact the rollouts produced two different best plays, that there were a lot of candidates (including three that I'm showing here for the first time) and that one of the weaker plays ($) was overrolled made this a somewhat tricky combining operation and evidently I botched it.

I find the easiest nacbrac-combining method (though technically to avoid tiny errors in the margins sometimes creeping in I would need to examine the absolute equities in both files and do the more tedious arithmetic) is to first convert the second line to [U+6 W=Z S8 T17 H25 $27 %32] ~10***7*5, and then combine, which should yield

    [W Z1 U2 S5 $29 T22 H26 %36 c52 e56 &77] ~31***27 25*15 5

In answer to your other question: Yes, it's acceptable to list a candidate play out of its order of rollout strength. To do so is unusual but I had a reason. The alternative is to list the descending number of trials out of order, like this:

    [W Z1 U2 S5 T22 H26 $29 %36 c52 e56 &77] ~31***25*27 15 5

That works out okay in this case, but imagine $ to be (say) .004 stronger -- then it would look like this:

    [W Z1 U2 S5 T22 $25 H26 %36 c52 e56 &77] ~31***25 27 25 15 5

In that example, I had to repeat a two-digit trial number plus add two spaces in lieu of a single asterisk (a difference of three characters). By the same token, if you examine the second nacbrac of this post (based on an actual rollout), moving the $ candidate two places to the right would change the trial-number information from ~10***7*5 to ~10***5*7 5. If more than one weak candidate is overrolled, the trial numbers get increasingly flip-floppy and gangly. That said, it's no big deal either way, but FWIW there's the reason I am in the habit of putting the candidate's strength rather than the trial numbers out of order in these situations; it's the lesser of evils.

Nack

Messages In This Thread

 

Post Response

Your Name:
Your E-Mail Address:
Subject:
Message:

If necessary, enter your password below:

Password:

 

 

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums is maintained by Stick with WebBBS 5.12.