Search found 18527 matches

by Roger de Coverly
Tue Mar 24, 2009 2:23 pm
Forum: Chess Questions
Topic: Incorrect Clocks
Replies: 8
Views: 1740

Re: Incorrect Clocks

With the clocks now showing 30 and 45 minutes remaining the mistake is noticed. Presumably at some move number below 35. Constraints at the venue mean that the game must still be completed within the three hours. What changes to the clocks would you make to get the game completed? Either (a) no cha...
by Roger de Coverly
Tue Mar 24, 2009 11:31 am
Forum: General Chat
Topic: Default Times
Replies: 88
Views: 10124

Re: Default Times

Would you really want Oxford 3 to have won 3-0 without any games being played? Of course I wouldn't want that. If you don't want it, do not lend any support to zero default times. I don't agree about checking out, it was no problem The quick check out at Hinckley was very effective. But not everyon...
by Roger de Coverly
Tue Mar 24, 2009 9:26 am
Forum: General Chat
Topic: Default Times
Replies: 88
Views: 10124

Re: Default Times

After playing in the 4NCL last Sunday, I see where FIDE are coming from. At the appointed time, none of the opposing team were present. Neither were 3 of my own team. Would you really want Oxford 3 to have won 3-0 without any games being played? The 4NCL are now at liberty to introduce such a rule ...
by Roger de Coverly
Fri Mar 20, 2009 3:00 pm
Forum: General Chat
Topic: Shockwave Chess
Replies: 0
Views: 918

Shockwave Chess

This is (or was) an application that was convenient for playing "friendly" games of email chess. Whilst a Google search today for "shockwave chess" still comes up with www.shockwave.com/gamelanding/emailchess.jsp , the actual page has disappeared. Whilst I could believe that Shockwave might disconti...
by Roger de Coverly
Thu Mar 19, 2009 9:12 am
Forum: General Chat
Topic: Gibraltar and the lowest rated IM ever?
Replies: 170
Views: 14903

Re: Gibraltar and the lowest rated IM ever?

Following this logic, it would be impossible to ever provide staistical evidence that supported the hypothesis of cheating (by a strong player). I think that's the general opinion. The logic doesn't even have to involve computer engines - suppose two strong players play exactly the same game. It wo...
by Roger de Coverly
Sun Mar 15, 2009 8:38 pm
Forum: General Chat
Topic: Gibraltar and the lowest rated IM ever?
Replies: 170
Views: 14903

Re: Gibraltar and the lowest rated IM ever?

I think you could argue that the probability of Kurnosov playing Rybka's first choices against Onischuk for 14 moves in a row is of the order of 3000-1. Not argue correctly. You can only multiply up in this manner if the events are independent. The opinions of two strong chess players on the best m...
by Roger de Coverly
Sat Mar 14, 2009 8:07 pm
Forum: General Chat
Topic: Gibraltar and the lowest rated IM ever?
Replies: 170
Views: 14903

Re: Gibraltar and the lowest rated IM ever?

As I understand it Mig (a GM) Not a GM - he's just a journalist mate of Kasparov. I don't really believe in this computer move matching hypothesis tells you anything when strong players are concerned. The method works perfectly well if you have a beginner or inexperienced player playing top engine ...
by Roger de Coverly
Sat Mar 14, 2009 5:09 pm
Forum: General Chat
Topic: Gibraltar and the lowest rated IM ever?
Replies: 170
Views: 14903

Re: Gibraltar and the lowest rated IM ever?

If this is accepted then I think 3887-1 is valid. I don't think so at all. If you are arguing that K has been cheating for his entire career and that really he's a player off the streets who just knows the legal moves and not much else, then your 3887-1 is valid. Once you factor in that he's a stro...
by Roger de Coverly
Sat Mar 14, 2009 4:12 pm
Forum: General Chat
Topic: Gibraltar and the lowest rated IM ever?
Replies: 170
Views: 14903

Re: Gibraltar and the lowest rated IM ever?

If as Mamedyarov claims Kurnosov has played all Rybka's first choices then this 3887-1 chance needs to be explained. Aren't you making an assumption in the 3887 -1 calc that Kurnosov's move choice and Rybka's choice are independent? I would have thought it "highly likely" that a strong GM and a str...
by Roger de Coverly
Wed Mar 11, 2009 2:31 pm
Forum: ECF Matters
Topic: County Championships
Replies: 45
Views: 4082

Re: County Championships

Perhaps we should be considering competitions that are based on the size of the county (in terms of player numbers) The more radical idea would be to officially allow wildcards - that is players who are not otherwise eligible. Even more radical would be to just structure the competitions as 12/16 b...
by Roger de Coverly
Wed Mar 11, 2009 8:16 am
Forum: General Chat
Topic: Default Times
Replies: 88
Views: 10124

Re: Default Times

Of course Torquay will have a note on the entry form. But what will it say ? 0 minutes, 15 minutes, 30 minutes or 60 minutes. I suspect many amateur players will find short default times offensive and decide to teach a lesson to tournament promoters either by refusing to participate or by disruptin...
by Roger de Coverly
Tue Mar 10, 2009 9:48 am
Forum: Grading Debate
Topic: Rough Guide to new grades
Replies: 84
Views: 9889

Rough Guide to new grades

Neil Cooper made some valid observations at the tail end of a thread about the on-line database updates. I am very concerned by what I see as junior grades being significantly too high. Possible explanation 1) I am wrong about the exageration. Possible explanation 2) The computer code to do the calc...
by Roger de Coverly
Mon Mar 09, 2009 7:11 pm
Forum: General Chat
Topic: Default Times
Replies: 88
Views: 10124

Re: Default Times

At least one of the leagues I have played in has a rule that if the home team has not set up to start the match at the agreed time, the time difference between actual and agreed starting times is deducted from their clocks. Are we going to say that in this case the home team loses the match by defa...
by Roger de Coverly
Mon Mar 09, 2009 6:05 pm
Forum: Online Grading Database
Topic: Database Upgrade
Replies: 59
Views: 17254

Re: Database Upgrade

It seems to me that in this electronic age we should be publishing grades more often than once a year. Noting that you can now establish your current FIDE rating by taking the current list and adding the most recent performance I would suggest that the ECF system could (a) retain the principle of a...
by Roger de Coverly
Mon Mar 09, 2009 3:30 pm
Forum: Chess Questions
Topic: Summer "Openings" School
Replies: 2
Views: 1088

Re: Summer "Openings" School

Any advice on lines, games where these have been used and sources of free and readily available online info. on these lines would be much appreciated. You could look at the articles on www.chesspublishing.com and browse the related forum at www.chesspub.com If you want a topic that's been debated f...