Search found 21274 matches

by Roger de Coverly
Sat Mar 02, 2024 11:47 pm
Forum: Rating Debate
Topic: FIDE ratings revaluation
Replies: 14
Views: 2102

Re: FIDE ratings revaluation

Mine is perhaps a better, or at least a more dramatic, example. You are now 1910 ECF and 1876 FIDE, so the gap has closed. I am now 1920 ECF and 1904 FIDE, so now close. My ECF rating is slightly distorted by the reluctance/refusal of the Chiltern grader to submit results, but with both missing gam...
by Roger de Coverly
Sat Mar 02, 2024 12:07 am
Forum: Rating Debate
Topic: P Grades question
Replies: 15
Views: 973

Re: P Grades question

from the calculation
Where a player has a higher lapsed full rating (categories A-E,K or X) from the applicable list, use that latest such rating or converted grade.
So the first game in the calculation of a returning player is a notional draw against himself or herself.
by Roger de Coverly
Fri Mar 01, 2024 7:22 pm
Forum: Rating Debate
Topic: P Grades question
Replies: 15
Views: 973

Re: P Grades question

No time limit, but if there are 36 months of inactivity in that list then you start from scratch. Tiviakov has previously had an ECF grade, but was treated as a new player for rating at the Cambridge Open, havimg not played a British event for some years. Would his dummy game have been a draw again...
by Roger de Coverly
Mon Feb 26, 2024 3:41 pm
Forum: General Chat
Topic: Clock Bangers
Replies: 17
Views: 1266

Re: Clock Bangers

Not possible to change the way it's done as this is the feature of the league and every clock is done that way in every single game. (34 moves in 1h:25 mins then 20 mins added, or 34 moves in 1h:10 mins then 15 mins added) I suppose it depends on the clock, but it can be hard work setting the clock...
by Roger de Coverly
Mon Feb 26, 2024 12:33 pm
Forum: General Chat
Topic: The Best Game of Chess played by an English Player
Replies: 39
Views: 2112

Re: The Best Game of Chess played by an English Player

Or wait till my copy of the book arrives, I'm quite willing to list every game and then everyone can dive in. The Amazon sample pages contain the index. https://www.amazon.co.uk/Memorable-Games-British-Chess-Collected/dp/1794053565?asin=1794053565&revisionId=&format=4&depth=1 The selection is of me...
by Roger de Coverly
Sun Feb 25, 2024 3:36 pm
Forum: General Chat
Topic: Research of some relevance to chess?
Replies: 3
Views: 352

Re: Research of some relevance to chess?

ai-finds-women-and-men-differ-with-respect-to-brain-organization-and-function I'm slightly surprised this got past the academic censors, but it did and is now in the open. You might wonder if they intend to take this further. For example chess Grand Masters v ordinary chess players or non chess pla...
by Roger de Coverly
Sun Feb 25, 2024 3:22 pm
Forum: Congress Diary
Topic: 2nd Cambridge International Open
Replies: 109
Views: 10259

Re: 2nd Cambridge International Open

So why is there such a big difference? Did you mean 2438 v 2400? It's not such a big difference and it's what you get if you use a linear approximation (Clarke / rule of 400 formula). The approximation is that results between players 400 points apart are treated as 100%/0% whereas using the probabi...
by Roger de Coverly
Sun Feb 25, 2024 12:03 pm
Forum: Congress Diary
Topic: 2nd Cambridge International Open
Replies: 109
Views: 10259

Re: 2nd Cambridge International Open

I am now confused... That particular calculator seems to date back to 2012 using the url as a clue. The reference to grades is a giveaway as well. Perhaps even for FIDE ratings, it uses a Clarke method of calculation, called the rule of 400 in an Elo context. In other words, add up the ratings and ...
by Roger de Coverly
Sun Feb 25, 2024 10:49 am
Forum: Congress Diary
Topic: 2nd Cambridge International Open
Replies: 109
Views: 10259

Re: 2nd Cambridge International Open

Exception 1.43d is what I think Jack was referring to: "Swiss System tournaments in which participants include in every round at least 20 FIDE rated players, not from the host federation, from at least 3 different federations, at least 10 of whom hold GM, IM, WGM or WIM titles" Hastings usually man...
by Roger de Coverly
Sat Feb 24, 2024 7:55 pm
Forum: Congress Diary
Topic: 2nd Cambridge International Open
Replies: 109
Views: 10259

Re: 2nd Cambridge International Open

Jonathan Rogers wrote:
Sat Feb 24, 2024 5:26 pm
On the link you highlighted yesterday, it did speak of a tiebreak system, whilst also saying that money would be shared equally. I don't pretend to understand ...

There was a physical trophy on display at the start of the final round as well as a few medals.
by Roger de Coverly
Fri Feb 23, 2024 1:58 pm
Forum: Congress Diary
Topic: 2nd Cambridge International Open
Replies: 109
Views: 10259

Re: 2nd Cambridge International Open

There was a very important observation in the article that players between 2000-2400 (though I would say, more like 2150-2400) are simply absent from these events but everywhere at 4NCL. It is as though players in different rating groups are living parallel chess lives. (Though age is another facto...
by Roger de Coverly
Thu Feb 22, 2024 10:22 am
Forum: Congress Diary
Topic: 2nd Cambridge International Open
Replies: 109
Views: 10259

Re: 2nd Cambridge International Open

Mick Norris wrote:
Thu Feb 22, 2024 9:43 am
round 6 pairings
Acceleration of pairings has ended after five rounds, so floats excepted everyone plays someone of the same score.
by Roger de Coverly
Tue Feb 20, 2024 11:14 am
Forum: General Chat
Topic: Without thinking about it too much... are you a bishop or a knight person?
Replies: 30
Views: 2593

Re: Without thinking about it too much... are you a bishop or a knight person?

I've seen plenty of top players with white play into the Berlin endgame or play the Nimzo as black (which white seems to avoid at a high level) to get the impression that it all depends on the position. A feature uniting such variations being inflicting doubled pawns on the opposition. Other lines ...
by Roger de Coverly
Tue Feb 20, 2024 10:52 am
Forum: Not Chess!
Topic: ICL Pathway (Fujitsu) Curiosity
Replies: 25
Views: 2410

Re: ICL Pathway (Fujitsu) Curiosity

I came across this recently.

Someone in his day job.

https://sms.cam.ac.uk/media/4516757
by Roger de Coverly
Tue Feb 20, 2024 8:09 am
Forum: General Chat
Topic: Graded Band Tournaments
Replies: 9
Views: 770

Re: Graded Band Tournaments

Hence it is a breath of fresh air to sea an organiser adding a minimum rating band in an u2300 event of 2000 Outside the London area, there aren't really enough players over 2000 to make such events financially viable. Take the new Wells Congress. https://wellschess.co.uk/entry-tables/ That current...