Rocksolid Light

Welcome to novaBBS (click a section below)

mail  files  register  newsreader  groups  login

Message-ID:  

I fear explanations explanatory of things explained.


interests / rec.games.backgammon / A tedious verification of a banal comment

SubjectAuthor
o A tedious verification of a banal commentpeps...@gmail.com

1
A tedious verification of a banal comment

<ac17f37b-8b72-427a-9197-132bc7df274en@googlegroups.com>

  copy mid

https://www.novabbs.com/interests/article-flat.php?id=13564&group=rec.games.backgammon#13564

  copy link   Newsgroups: rec.games.backgammon
X-Forwarded-Encrypted: i=1; AJvYcCUAz2QIOOrwiHMws3a7k8Z0UdpGCYbo9VDcvshseaLyFm3R8VT7W9D/8WQFtpBQ8KXvdPeKsxEICq0GJkkwpr+eVpOH5n/9fX9A/F7VfoE27COhAk3z2+XO
X-Received: by 2002:a05:6214:29cc:b0:68d:1c2:d633 with SMTP id gh12-20020a05621429cc00b0068d01c2d633mr83868qvb.5.1707587243043;
Sat, 10 Feb 2024 09:47:23 -0800 (PST)
X-Forwarded-Encrypted: i=1; AJvYcCVR1gzeREpkF3I/SnwETAUttDmUZoofiwKXZwmzM0xbc5z0PoDhnW6d2G6BlJC65fVTeTTjjWEfa15c0CMhDmU1KoKEghq9Tvr9q+0dhh3aBVE2kn6b4w==
X-Received: by 2002:a05:6214:5090:b0:68c:ee7e:d6f1 with SMTP id
kk16-20020a056214509000b0068cee7ed6f1mr169304qvb.10.1707587242772; Sat, 10
Feb 2024 09:47:22 -0800 (PST)
Path: i2pn2.org!i2pn.org!weretis.net!feeder6.news.weretis.net!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: rec.games.backgammon
Date: Sat, 10 Feb 2024 09:47:22 -0800 (PST)
Injection-Info: google-groups.googlegroups.com; posting-host=217.155.59.144; posting-account=X1j9wgoAAADLt4UnZrIneT3jwl9HvLMd
NNTP-Posting-Host: 217.155.59.144
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <ac17f37b-8b72-427a-9197-132bc7df274en@googlegroups.com>
Subject: A tedious verification of a banal comment
From: pepste...@gmail.com (peps...@gmail.com)
Injection-Date: Sat, 10 Feb 2024 17:47:23 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 3013
 by: peps...@gmail.com - Sat, 10 Feb 2024 17:47 UTC

Tim posted a clip in another thread of Gus Hansen against Bob Koca.
Naturally, I watched the clip, heard the commentary and ordered the t-shirt.

The commentators (one of them) made a claim that in a gammonless
position at 3A 1A post-Crawford, the leader's take point is only 1%.

At time of writing, I haven't checked this. The purpose of this post is
to verify this in real time. (My real time anyway -- it won't be real time if
you're reading this later.)
Dropping gives a 2A 1A post-Crawford position. This free drop position
gives the leader 51.2% winning changces according to Rockwell-Kazaross.

Let x be the match-leader's game-winning probability and select x
so that the match-winning chances from dropping and taking are the same.
Such an x will be the take-point -- the point at which dropping and taking
are equally good.
Dropping leads to 51.2% but what does taking lead to?
Clearly, x will be part of the answer.
Taking leads to a match-winning-probability (for the match-leader)
of x + (1-x)/2. This is because the match winning possibilities are to
win immediately (x) or to lose and win the final game (1/x)/2.
So x + (1 - x)/2 = 51.2%.
(x + 1)/2 = 51.2%
x/2 = 1.2%
So x = 2.4%
This is absolutely miles away from the commentator's "one percent".
Bear in mind that these computations use a very low estimate for
the value of a free drop. So x might well be even larger.
The commentary was just major bullshit!
If Trump loses the presidential election, should we bring him in as a
backgammon commentator? He wouldn't be able to do any harm that
way, and if spreading bullshit is the main qualification, he might be
an ideal candidate.

Paul

1
server_pubkey.txt

rocksolid light 0.9.8
clearnet tor