Rocksolid Light

Welcome to novaBBS (click a section below)

mail  files  register  newsreader  groups  login

Message-ID:  

In these matters the only certainty is that there is nothing certain. -- Pliny the Elder


interests / rec.games.chess.misc / Re: Premature resignation in a probably not-lost position

SubjectAuthor
* Premature resignation in a probably not-lost positionPaul Epstein
+* Re: Premature resignation in a probably not-lost positionEli Kesef
|`- Re: Premature resignation in a probably not-lost positionKen Blake
`* Re: Premature resignation in a probably not-lost positionThe Horny Goat
 `* Re: Premature resignation in a probably not-lost positionEli Kesef
  `* Re: Premature resignation in a probably not-lost positionThe Horny Goat
   `* Re: Premature resignation in a probably not-lost positionEli Kesef
    `* Re: Premature resignation in a probably not-lost positionThe Horny Goat
     `- Re: Premature resignation in a probably not-lost positionPaul Epstein

1
Premature resignation in a probably not-lost position

<51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=176&group=rec.games.chess.misc#176

 copy link   Newsgroups: rec.games.chess.misc
X-Received: by 2002:ae9:f81a:: with SMTP id x26mr21674016qkh.497.1618144991092;
Sun, 11 Apr 2021 05:43:11 -0700 (PDT)
X-Received: by 2002:a05:620a:15d4:: with SMTP id o20mr22564275qkm.81.1618144990889;
Sun, 11 Apr 2021 05:43:10 -0700 (PDT)
Path: i2pn2.org!i2pn.org!aioe.org!news.uzoreto.com!fdcspool4.netnews.com!news-out.netnews.com!news.alt.net!fdc2.netnews.com!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer02.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.chess.misc
Date: Sun, 11 Apr 2021 05:43:10 -0700 (PDT)
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: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com>
Subject: Premature resignation in a probably not-lost position
From: pepste...@gmail.com (Paul Epstein)
Injection-Date: Sun, 11 Apr 2021 12:43:11 +0000
Content-Type: text/plain; charset="UTF-8"
X-Received-Bytes: 1250
 by: Paul Epstein - Sun, 11 Apr 2021 12:43 UTC

Ken Blake told me about this one in another newsgroup.
https://www.chessgames.com/perl/chessgame?gid=1044405

Apparently Stockfish finds the final position almost equal but humans
probably prefer Black.

Paul

Re: Premature resignation in a probably not-lost position

<66727eb4-6fe3-412b-9df0-77c0ec4151f5n@googlegroups.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=181&group=rec.games.chess.misc#181

 copy link   Newsgroups: rec.games.chess.misc
X-Received: by 2002:ac8:4752:: with SMTP id k18mr24533065qtp.158.1618214242530;
Mon, 12 Apr 2021 00:57:22 -0700 (PDT)
X-Received: by 2002:ad4:4726:: with SMTP id l6mr8144314qvz.8.1618214242201;
Mon, 12 Apr 2021 00:57:22 -0700 (PDT)
Path: i2pn2.org!i2pn.org!aioe.org!news.uzoreto.com!feeder1.cambriumusenet.nl!feed.tweak.nl!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: rec.games.chess.misc
Date: Mon, 12 Apr 2021 00:57:21 -0700 (PDT)
In-Reply-To: <idglv6F3migU7@mid.individual.net>
Injection-Info: google-groups.googlegroups.com; posting-host=147.161.8.180; posting-account=dTaS5QoAAADSGk7feFOweMIQFZ8WoL0X
NNTP-Posting-Host: 147.161.8.180
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com> <idglv6F3migU7@mid.individual.net>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <66727eb4-6fe3-412b-9df0-77c0ec4151f5n@googlegroups.com>
Subject: Re: Premature resignation in a probably not-lost position
From: nastyhor...@gmail.com (Eli Kesef)
Injection-Date: Mon, 12 Apr 2021 07:57:22 +0000
Content-Type: text/plain; charset="UTF-8"
 by: Eli Kesef - Mon, 12 Apr 2021 07:57 UTC

Bs"d

This is a famous game in which black resigned in won position. When he resigned he had the killer move Bg1: https://www.chessgames.com/perl/chessgame?gid=1099222
He just didn't see it....

https://tinyurl.com/krabee

Re: Premature resignation in a probably not-lost position

<idjjcaFlaieU2@mid.individual.net>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=182&group=rec.games.chess.misc#182

 copy link   Newsgroups: rec.games.chess.misc
Path: i2pn2.org!i2pn.org!weretis.net!feeder6.news.weretis.net!4.us.feeder.erje.net!feeder.erje.net!news2.arglkargh.de!news.karotte.org!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: ken...@invalidemail.com (Ken Blake)
Newsgroups: rec.games.chess.misc
Subject: Re: Premature resignation in a probably not-lost position
Date: Mon, 12 Apr 2021 11:55:06 -0700
Lines: 15
Message-ID: <idjjcaFlaieU2@mid.individual.net>
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com>
<idglv6F3migU7@mid.individual.net>
<66727eb4-6fe3-412b-9df0-77c0ec4151f5n@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: individual.net 5yw6RD1Jhr2wi+0yXIUc6glcADRv49+m+eMGp9xs8oMIPLNO54
Cancel-Lock: sha1:m4E+azh7AZdkiFukbglTj0xwvik=
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
Thunderbird/78.9.1
In-Reply-To: <66727eb4-6fe3-412b-9df0-77c0ec4151f5n@googlegroups.com>
Content-Language: en-US
 by: Ken Blake - Mon, 12 Apr 2021 18:55 UTC

On 4/12/2021 12:57 AM, Eli Kesef wrote:
> Bs"d
>
> This is a famous game in which black resigned in won position. When he resigned he had the killer move Bg1: https://www.chessgames.com/perl/chessgame?gid=1099222
> He just didn't see it....

Not an easy move to see.

--
Ken

Re: Premature resignation in a probably not-lost position

<ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=188&group=rec.games.chess.misc#188

 copy link   Newsgroups: rec.games.chess.misc
Path: i2pn2.org!i2pn.org!paganini.bofh.team!news.dns-netz.com!news.freedyn.net!newsreader4.netcologne.de!news.netcologne.de!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!fx13.iad.POSTED!not-for-mail
From: lcra...@home.ca (The Horny Goat)
Newsgroups: rec.games.chess.misc
Subject: Re: Premature resignation in a probably not-lost position
Message-ID: <ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com>
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com>
User-Agent: ForteAgent/8.00.32.1272
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Lines: 21
X-Complaints-To: abuse@easynews.com
Organization: Easynews - www.easynews.com
X-Complaints-Info: Please be sure to forward a copy of ALL headers otherwise we will be unable to process your complaint properly.
Date: Sat, 17 Apr 2021 15:25:07 -0700
X-Received-Bytes: 1695
 by: The Horny Goat - Sat, 17 Apr 2021 22:25 UTC

On Sun, 11 Apr 2021 05:43:10 -0700 (PDT), Paul Epstein
<pepstein5@gmail.com> wrote:

>Ken Blake told me about this one in another newsgroup.
>https://www.chessgames.com/perl/chessgame?gid=1044405
>
>Apparently Stockfish finds the final position almost equal but humans
>probably prefer Black.

There are lots of positions that are objectively known to be one
result or another but incredibly easy to mess up and get a non-optimal
result.

K+2N vs K+P is one
K+2N vs K (e.g. no pawns) is another with a completely different
theoretical result from the first.

Even K+B+N vs K is often snafu'd with a result going over 50 moves -
not an optimal result but common enough. I certainly wouldn't want to
do that ending for $50 per game at speed chess speeds. Especially in a
bar which is where those kind of bets most commonly get offered!

Re: Premature resignation in a probably not-lost position

<ce2435fb-feb6-4f65-a3fe-54efc0812b8fn@googlegroups.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=189&group=rec.games.chess.misc#189

 copy link   Newsgroups: rec.games.chess.misc
X-Received: by 2002:a0c:9e6a:: with SMTP id z42mr15164319qve.60.1618701482074;
Sat, 17 Apr 2021 16:18:02 -0700 (PDT)
X-Received: by 2002:ac8:ccc:: with SMTP id o12mr5548302qti.234.1618701481806;
Sat, 17 Apr 2021 16:18:01 -0700 (PDT)
Path: i2pn2.org!i2pn.org!weretis.net!feeder8.news.weretis.net!proxad.net!feeder1-2.proxad.net!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: rec.games.chess.misc
Date: Sat, 17 Apr 2021 16:18:01 -0700 (PDT)
In-Reply-To: <ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com>
Injection-Info: google-groups.googlegroups.com; posting-host=147.161.9.48; posting-account=dTaS5QoAAADSGk7feFOweMIQFZ8WoL0X
NNTP-Posting-Host: 147.161.9.48
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com> <ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <ce2435fb-feb6-4f65-a3fe-54efc0812b8fn@googlegroups.com>
Subject: Re: Premature resignation in a probably not-lost position
From: nastyhor...@gmail.com (Eli Kesef)
Injection-Date: Sat, 17 Apr 2021 23:18:02 +0000
Content-Type: text/plain; charset="UTF-8"
 by: Eli Kesef - Sat, 17 Apr 2021 23:18 UTC

On Sunday, April 18, 2021 at 1:25:11 AM UTC+3, The Horny Goat wrote:
> On Sun, 11 Apr 2021 05:43:10 -0700 (PDT), Paul Epstein
> <peps...@gmail.com> wrote:
>
> >Ken Blake told me about this one in another newsgroup.
> >https://www.chessgames.com/perl/chessgame?gid=1044405
> >
> >Apparently Stockfish finds the final position almost equal but humans
> >probably prefer Black.
> There are lots of positions that are objectively known to be one
> result or another but incredibly easy to mess up and get a non-optimal
> result.
>
> K+2N vs K+P is one
> K+2N vs K (e.g. no pawns) is another with a completely different
> theoretical result from the first.
>
> Even K+B+N vs K is often snafu'd with a result going over 50 moves -
> not an optimal result but common enough. I certainly wouldn't want to
> do that ending for $50 per game at speed chess speeds. Especially in a
> bar which is where those kind of bets most commonly get offered!

Bs"d

I think I get K+B+N vs K in about 80% of the time right, but I need time to think about it. I wouldn't wanna do it in blitz.

Re: Premature resignation in a probably not-lost position

<5uan7gtsefkb82fb8omp9c1tevqsp425id@4ax.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=190&group=rec.games.chess.misc#190

 copy link   Newsgroups: rec.games.chess.misc
Path: i2pn2.org!i2pn.org!aioe.org!news.uzoreto.com!fdcspool5.netnews.com!news-out.netnews.com!news.alt.net!fdc2.netnews.com!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer01.iad!feed-me.highwinds-media.com!news.highwinds-media.com!fx35.iad.POSTED!not-for-mail
From: lcra...@home.ca (The Horny Goat)
Newsgroups: rec.games.chess.misc
Subject: Re: Premature resignation in a probably not-lost position
Message-ID: <5uan7gtsefkb82fb8omp9c1tevqsp425id@4ax.com>
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com> <ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com> <ce2435fb-feb6-4f65-a3fe-54efc0812b8fn@googlegroups.com>
User-Agent: ForteAgent/8.00.32.1272
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Lines: 13
X-Complaints-To: abuse@easynews.com
Organization: Easynews - www.easynews.com
X-Complaints-Info: Please be sure to forward a copy of ALL headers otherwise we will be unable to process your complaint properly.
Date: Sat, 17 Apr 2021 20:47:35 -0700
X-Received-Bytes: 1542
 by: The Horny Goat - Sun, 18 Apr 2021 03:47 UTC

On Sat, 17 Apr 2021 16:18:01 -0700 (PDT), Eli Kesef
<nastyhorsefork@gmail.com> wrote:

>> Even K+B+N vs K is often snafu'd with a result going over 50 moves -
>> not an optimal result but common enough. I certainly wouldn't want to
>> do that ending for $50 per game at speed chess speeds. Especially in a
>> bar which is where those kind of bets most commonly get offered!
>
>Bs"d
>
>I think I get K+B+N vs K in about 80% of the time right, but I need time to think about it. I wouldn't wanna do it in blitz.

Well that's my point - I wouldn't want to try to do it for serious $$$

Re: Premature resignation in a probably not-lost position

<2e6d1bb6-5e40-40b0-b73d-f66af2403a80n@googlegroups.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=191&group=rec.games.chess.misc#191

 copy link   Newsgroups: rec.games.chess.misc
X-Received: by 2002:ac8:5f0a:: with SMTP id x10mr6479030qta.143.1618723579074;
Sat, 17 Apr 2021 22:26:19 -0700 (PDT)
X-Received: by 2002:ae9:f114:: with SMTP id k20mr6518966qkg.386.1618723578766;
Sat, 17 Apr 2021 22:26:18 -0700 (PDT)
Path: i2pn2.org!i2pn.org!weretis.net!feeder8.news.weretis.net!proxad.net!feeder1-2.proxad.net!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: rec.games.chess.misc
Date: Sat, 17 Apr 2021 22:26:18 -0700 (PDT)
In-Reply-To: <5uan7gtsefkb82fb8omp9c1tevqsp425id@4ax.com>
Injection-Info: google-groups.googlegroups.com; posting-host=147.161.13.219; posting-account=dTaS5QoAAADSGk7feFOweMIQFZ8WoL0X
NNTP-Posting-Host: 147.161.13.219
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com>
<ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com> <ce2435fb-feb6-4f65-a3fe-54efc0812b8fn@googlegroups.com>
<5uan7gtsefkb82fb8omp9c1tevqsp425id@4ax.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <2e6d1bb6-5e40-40b0-b73d-f66af2403a80n@googlegroups.com>
Subject: Re: Premature resignation in a probably not-lost position
From: nastyhor...@gmail.com (Eli Kesef)
Injection-Date: Sun, 18 Apr 2021 05:26:19 +0000
Content-Type: text/plain; charset="UTF-8"
 by: Eli Kesef - Sun, 18 Apr 2021 05:26 UTC

On Sunday, April 18, 2021 at 6:47:38 AM UTC+3, The Horny Goat wrote:
> On Sat, 17 Apr 2021 16:18:01 -0700 (PDT), Eli Kesef
> <nastyho...@gmail.com> wrote:
>
> >> Even K+B+N vs K is often snafu'd with a result going over 50 moves -
> >> not an optimal result but common enough. I certainly wouldn't want to
> >> do that ending for $50 per game at speed chess speeds. Especially in a
> >> bar which is where those kind of bets most commonly get offered!
> >
> >Bs"d
> >
> >I think I get K+B+N vs K in about 80% of the time right, but I need time to think about it. I wouldn't wanna do it in blitz.
> Well that's my point - I wouldn't want to try to do it for serious $$$

Bs"d

I messed up not to long ago, an endgame with K+Q against K+N. Couldn't mate him. I checked it out afterward on youtube, and it is really easy, now it's no problem, but that game was messed up, a draw in stead of a win.

I also messed up not too long ago a K+B+N against K alone.

What bothers me is an endgame with K+Q against K+R. That's a mean one. I have to work on that one.

https://tinyurl.com/GR-Endgame

Re: Premature resignation in a probably not-lost position

<m3fp7g1j96f8pkkjgqd9g09r3rh5vklpop@4ax.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=192&group=rec.games.chess.misc#192

 copy link   Newsgroups: rec.games.chess.misc
Path: i2pn2.org!i2pn.org!weretis.net!feeder8.news.weretis.net!newsreader4.netcologne.de!news.netcologne.de!peer02.ams1!peer.ams1.xlned.com!news.xlned.com!peer03.iad!feed-me.highwinds-media.com!news.highwinds-media.com!fx45.iad.POSTED!not-for-mail
From: lcra...@home.ca (The Horny Goat)
Newsgroups: rec.games.chess.misc
Subject: Re: Premature resignation in a probably not-lost position
Message-ID: <m3fp7g1j96f8pkkjgqd9g09r3rh5vklpop@4ax.com>
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com> <ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com> <ce2435fb-feb6-4f65-a3fe-54efc0812b8fn@googlegroups.com> <5uan7gtsefkb82fb8omp9c1tevqsp425id@4ax.com> <2e6d1bb6-5e40-40b0-b73d-f66af2403a80n@googlegroups.com>
User-Agent: ForteAgent/8.00.32.1272
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Lines: 17
X-Complaints-To: abuse@easynews.com
Organization: Easynews - www.easynews.com
X-Complaints-Info: Please be sure to forward a copy of ALL headers otherwise we will be unable to process your complaint properly.
Date: Sun, 18 Apr 2021 16:12:58 -0700
X-Received-Bytes: 1860
 by: The Horny Goat - Sun, 18 Apr 2021 23:12 UTC

On Sat, 17 Apr 2021 22:26:18 -0700 (PDT), Eli Kesef
<nastyhorsefork@gmail.com> wrote:

>I messed up not to long ago, an endgame with K+Q against K+N. Couldn't mate him. I checked it out afterward on youtube, and it is really easy, now it's no problem, but that game was messed up, a draw in stead of a win.
>
>I also messed up not too long ago a K+B+N against K alone.
>
>What bothers me is an endgame with K+Q against K+R. That's a mean one. I have to work on that one.
>
K+Q vs K+N is a terrible one to mess up.

Particularly if the clock is a factor I wouldn't fault anybody who
mucked up K+B+N vs K

There are a few K+Q vs K+R that can be held but very few though there
are plenty of 'fortress' type positions in K+Q vs K+R+P that are drawn
particularly with pawns on the b and g files

Re: Premature resignation in a probably not-lost position

<69144a32-6e23-4b03-8291-c67b613ffc7cn@googlegroups.com>

 copy mid

https://www.novabbs.com/interests/article-flat.php?id=193&group=rec.games.chess.misc#193

 copy link   Newsgroups: rec.games.chess.misc
X-Received: by 2002:a0c:e286:: with SMTP id r6mr229253qvl.26.1619044564983;
Wed, 21 Apr 2021 15:36:04 -0700 (PDT)
X-Received: by 2002:ad4:5be1:: with SMTP id k1mr185950qvc.55.1619044564740;
Wed, 21 Apr 2021 15:36:04 -0700 (PDT)
Path: i2pn2.org!i2pn.org!aioe.org!news.mixmin.net!proxad.net!feeder1-2.proxad.net!209.85.160.216.MISMATCH!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail
Newsgroups: rec.games.chess.misc
Date: Wed, 21 Apr 2021 15:36:04 -0700 (PDT)
In-Reply-To: <m3fp7g1j96f8pkkjgqd9g09r3rh5vklpop@4ax.com>
Injection-Info: google-groups.googlegroups.com; posting-host=217.155.59.144; posting-account=X1j9wgoAAADLt4UnZrIneT3jwl9HvLMd
NNTP-Posting-Host: 217.155.59.144
References: <51fc04bd-d006-4b1b-9125-d3763cb27b80n@googlegroups.com>
<ornm7g1ici492a2hfora20ehbuv7nvefa6@4ax.com> <ce2435fb-feb6-4f65-a3fe-54efc0812b8fn@googlegroups.com>
<5uan7gtsefkb82fb8omp9c1tevqsp425id@4ax.com> <2e6d1bb6-5e40-40b0-b73d-f66af2403a80n@googlegroups.com>
<m3fp7g1j96f8pkkjgqd9g09r3rh5vklpop@4ax.com>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <69144a32-6e23-4b03-8291-c67b613ffc7cn@googlegroups.com>
Subject: Re: Premature resignation in a probably not-lost position
From: pepste...@gmail.com (Paul Epstein)
Injection-Date: Wed, 21 Apr 2021 22:36:04 +0000
Content-Type: text/plain; charset="UTF-8"
 by: Paul Epstein - Wed, 21 Apr 2021 22:36 UTC

On Monday, April 19, 2021 at 12:13:02 AM UTC+1, The Horny Goat wrote:
> On Sat, 17 Apr 2021 22:26:18 -0700 (PDT), Eli Kesef
> <nastyho...@gmail.com> wrote:
>
> >I messed up not to long ago, an endgame with K+Q against K+N. Couldn't mate him. I checked it out afterward on youtube, and it is really easy, now it's no problem, but that game was messed up, a draw in stead of a win.
> >
> >I also messed up not too long ago a K+B+N against K alone.
> >
> >What bothers me is an endgame with K+Q against K+R. That's a mean one. I have to work on that one.
> >
> K+Q vs K+N is a terrible one to mess up.
>
> Particularly if the clock is a factor I wouldn't fault anybody who
> mucked up K+B+N vs K
>
> There are a few K+Q vs K+R that can be held but very few though there
> are plenty of 'fortress' type positions in K+Q vs K+R+P that are drawn
> particularly with pawns on the b and g files

Yes, K + Q v K + R is almost always a win.
John Nunn explains exactly how to win in Secrets of Pawnless Endings which is based on endgame databases.
Endgame databases changed the practical status of this ending.
Before databases, it was thought that the queen wins easily and that all that is needed is competent play and
the ability to spot two or three move checking sequences leading to a deadly pin or fork.
However, now it is known that the win is highly technical and extremely difficult.
If the player with the rook starts in a reasonable position and knows the theory, and the player with the queen doesn't know
the theory, it's likely to be a draw.
Nowadays GMs can win this easily because they've all read Nunn's books.

Paul

1
server_pubkey.txt

rocksolid light 0.9.7
clearnet tor