Search found 19363 matches

by Roger de Coverly
Thu Apr 22, 2021 10:01 am
Forum: International News
Topic: Candidates Tournament 2020
Replies: 467
Views: 33328

Re: Candidates Tournament 2020

✔️At the end of each round, the PGNs were sent to Prof Ken Regan for analysis and the results communicated to the CA and Supervisor. You wonder what the cheat-finder programs make of the Caruana-MVL Poison Pawn Najdorf. One might presume a certain amount of preparatory engine work went into that, f...
by Roger de Coverly
Tue Apr 20, 2021 10:44 am
Forum: International News
Topic: Candidates Tournament 2020
Replies: 467
Views: 33328

Re: Candidates Tournament 2020

How do I cause that to be displayed, after I've set up a position? I just ran a test of the Android app on a phone. First I cleared the board. It's the cross at the bottom of the screen. Message displayed "no White King" place a white King on e1 Message displayed "no Black King" place a black King ...
by Roger de Coverly
Mon Apr 19, 2021 8:17 pm
Forum: International News
Topic: Candidates Tournament 2020
Replies: 467
Views: 33328

Re: Candidates Tournament 2020

JustinHorton wrote:
Mon Apr 19, 2021 7:21 pm
There's a version of it on a creaky Shredder site that worked for a bit (and then didn't) but is there a reliable version anywhere?
I found an mostly reliable Android app that connects to the Lomonosov tables.
by Roger de Coverly
Mon Apr 19, 2021 7:01 pm
Forum: International News
Topic: Candidates Tournament 2020
Replies: 467
Views: 33328

Re: Candidates Tournament 2020

JustinHorton wrote:
Mon Apr 19, 2021 6:27 pm
And great drama as Caruana beats MVL in what looked like an unwinnable Rook and g-pawn v knight and f-pawn ending.
According to Lomonosov tables, a decisive mistake was Nh6 in this position at move 55 rather than Ne7

by Roger de Coverly
Mon Apr 19, 2021 2:15 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 2597
Views: 211666

Re: Cheating in chess

During one of my games after a few moves the game suddenly ended. I sign came up saying that my opponent had been violating the lichess terms of service. Although the game was ended with immediate effect, his account was not closed. Which struck me as odd. It could have been the lichess equivalent ...
by Roger de Coverly
Mon Apr 19, 2021 1:48 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 2597
Views: 211666

Re: Cheating in chess

So there is the solution, if you think you have just played an online cheat, block them. That could work where the pairing scheme is one where you enter a pool and are paired with the next available opponent. It breaks down if playing in a team or individual championship where it would be difficult...
by Roger de Coverly
Sun Apr 18, 2021 5:08 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 2597
Views: 211666

Re: Cheating in chess

There's no reliable way for chess.com or lichess to really know what the rate of false positive of their algorithms actually is. With a sufficiently large pool of trustworthy volunteers, they could attempt an experiment whereby they asked some volunteers to use engine assistance all the time some o...
by Roger de Coverly
Sun Apr 18, 2021 2:06 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 2597
Views: 211666

Re: Cheating in chess

It's a piece about covid testing, but the application of Bayes's Theorem seems also relevant to the question of how many false positives are being detected by the cheat finder methods. As a summary, the smaller the proportion of people using engine assistance/ having covid, the greater the relative ...
by Roger de Coverly
Wed Apr 14, 2021 3:10 pm
Forum: General Chat
Topic: (Chess) Life Returning To Normal
Replies: 2017
Views: 119356

Re: (Chess) Life Returning To Normal

Mick Norris wrote:
Wed Apr 14, 2021 2:57 pm

IoM reopening businesses on Monday 19 April
The question for the Grand Swiss is when they reopen their borders to visitors.
by Roger de Coverly
Wed Apr 14, 2021 11:48 am
Forum: General Chat
Topic: Arbiting question on 50 move rule
Replies: 8
Views: 644

Re: Arbiting question on 50 move rule

- they need to record the whole game (or the 50 moves), but obviously at speed that's difficult! If you are claiming that at least fifty moves have elapsed since the last pawn move or capture, why do you need to know what these moves were? Even without using the clock counter, you could have a scor...
by Roger de Coverly
Wed Apr 14, 2021 10:58 am
Forum: Congress Diary
Topic: 25th 4ncl Congress!
Replies: 10
Views: 1165

Re: 25th 4ncl Congress!

Paul Robert Jackson wrote:
Wed Apr 14, 2021 8:51 am
Are entries for congresses such as the "July 4NCL" going to need to be residents / guests at the hotel?
That's never been the case in the past, but who knows what restrictions will be placed on a weekend gathering of 100 or more in residential conference facilities?
by Roger de Coverly
Wed Apr 14, 2021 10:54 am
Forum: General Chat
Topic: Arbiting question on 50 move rule
Replies: 8
Views: 644

Re: Arbiting question on 50 move rule

Both players were either not recording or had never been recording. They were moving too fast for me to record but I was ticking on a scoresheet to keep count of the number of moves. If you had been using one of the more recent designs of DGT clock, they record the number of times they are pressed ...
by Roger de Coverly
Tue Apr 13, 2021 8:52 pm
Forum: Congress Diary
Topic: Events in 2021
Replies: 22
Views: 1627

Re: Events in 2021

Ronnie Burton wrote:
Tue Apr 13, 2021 8:20 pm
On a positive note, we are planning to hold the 2021 Congress on Armistice weekend (12th - 14th November).
If both take place as currently scheduled, for once there isn't a clash with a 4NCL weekend.
by Roger de Coverly
Tue Apr 13, 2021 1:41 pm
Forum: Birthdays & Anniversaries
Topic: Happy Birthday GMC Peter Markland (13-iv-1951)
Replies: 2
Views: 350

Re: Happy Birthday GMC Peter Markland (13-iv-1951)

The material presented appears to confirm that the second place at Hastings was regarded at the time as a GM Norm result. This was discussed in another recent thread.
by Roger de Coverly
Mon Apr 12, 2021 7:02 pm
Forum: Congress Diary
Topic: Events in 2021
Replies: 22
Views: 1627

Events in 2021

I took a look at https://ratings.fide.com/rated_tournaments.phtml?country=ENG out of curiosity to see what's there. There was a rapidplay in Hull listed for yesterday, but I rather think that's just not been removed. Otherwise it's just the Northumbria Masters in August, the Northumberland weekender...