Search found 208 matches

by Paul Dupré
Fri Nov 02, 2012 8:24 pm
Forum: Chess History
Topic: Deaths of Chess Players
Replies: 22
Views: 7660

Re: Deaths of Chess Players

Vera Menchik survived the German bombing of the National Chess Centre on 23 September 1940 where she was manager (http://www.westlondonchess.com/node/134) but died when a V-1 rocket hit her home in Kent on June 26, 1944. Does anyone have marriage records as I just read that she was Vera Menchik-Ste...
by Paul Dupré
Fri Nov 02, 2012 7:18 pm
Forum: Chess History
Topic: Deaths of Chess Players
Replies: 22
Views: 7660

Re: Deaths of Chess Players

Vera Menchik survived the German bombing of the National Chess Centre on 23 September 1940 where she was manager (http://www.westlondonchess.com/node/134) but died when a V-1 rocket hit her home in Kent on June 26, 1944. Does anyone have marriage records as I just read that she was Vera Menchik-Ste...
by Paul Dupré
Fri Nov 02, 2012 6:47 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

Mistakes keep happening. OK an example, I've just noticed a new member called Johnathan Rothwell, on the ECF grading list as Jonathan Rothwell - simple mistake maybe, but a mistake all the same. Unless we started asking for proof of identity for all new players, then what chance have we got of ever ...
by Paul Dupré
Fri Nov 02, 2012 6:34 pm
Forum: International News
Topic: Title norms held by English players
Replies: 97
Views: 18403

Re: Title norms held by English players

Paul Dupré wrote:Can we have a chart of titles (GM, IM, FM, WGM, WIM, WFM) achieved over the last 40 years.
Numbers on the Y-Axis, years on the X-Axis please.

Thanks, Paul
EnglishGMs.png
EnglishGMs.png (21.08 KiB) Viewed 1907 times
A starting point - 39 GMs, though missing year for Tony Kosten.
by Paul Dupré
Fri Nov 02, 2012 6:30 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

IMO, there is very little need for official 'real time ratings' under the ECF system, either to ensure the accuracy of the system, or to fulfill the purpose of creating a rating list at all. OK, understand where your coming from Richard. However, think about this - what about all the data that's lo...
by Paul Dupré
Fri Nov 02, 2012 1:09 am
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

Practicalities surely. Elo based systems don't have any problem with discarding results against players without a rating. If you want to include such games in a recalculation for a rated player, then you need to know what to include. Online servers get around this problem by giving all new players ...
by Paul Dupré
Thu Nov 01, 2012 11:34 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

Stop trying to big up how the "successful ECF grading system" works. It's obvious that the latest "improvement" was a MASSIVE disaster. A massive disaster in the sense that it provides a reliable rating system to estimate the strength of players who play games under the auspices of the ECF? What ar...
by Paul Dupré
Thu Nov 01, 2012 8:51 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

30 was chosen because there is a 95% confidence in the grade being correct. Further explanation can be found here: http://en.wikipedia.org/wiki/Confidence_interval 10 is another confidence interval, but I can't remember off-hand exactly what it is. It was reduced to 9 because there was enough deman...
by Paul Dupré
Thu Nov 01, 2012 8:46 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

If you want near real time ratings, you cannot hold up the processing for a new player to play another 15 games. I agree, but I don't care what solution you come up with, whether it's a continuous Clarke Grading System or an Elo Rating System (preferable). I just want action - and I don't see it. T...
by Paul Dupré
Thu Nov 01, 2012 8:33 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

Andrew Bak wrote:Why 16 games? Why not 10, or 30? Is this an arbitrary choice or is there some underlying mathematical reason behind it?
Yes, it's the number of white pieces on a chess board....OR black pieces if you're that way inclined.
by Paul Dupré
Thu Nov 01, 2012 8:32 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

Rating can be a double sided process. If you don't give a new player a rating until they've played n games, then you aren't able to give their opponents credit for the result either. There's an underlying principle of Elo style systems, that games rated v un-rated don't count for the rated player e...
by Paul Dupré
Thu Nov 01, 2012 7:09 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

You need to refine your thinking as to what you mean by a "live grade". Chess Scotland works out a "what your rating would be if we published a new list", but don't actually use it for anything. As a consequence of only updating the grades used for calculation once a year, they have the same issues...
by Paul Dupré
Thu Nov 01, 2012 6:43 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

We in Scotland also publish (on website) current grade which is updated regularly through the year. So a player will have an annual grade and a current grade. The annual grade is the one used for competition, the current grade is for fun (unless you are dropping like a stone :cry: ) Yeah maybe, the...
by Paul Dupré
Thu Nov 01, 2012 6:25 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

Andrew Bak wrote:What do you think about Yorkshire's Chessnuts live grades?
Good, the website works. However, but it's not very professional.

The colours are almost as bad as CCF World.
by Paul Dupré
Thu Nov 01, 2012 6:20 pm
Forum: Grading Debate
Topic: Minimum Grades
Replies: 75
Views: 12534

Re: Minimum Grades

What do you think about Yorkshire's Chessnuts live grades? So, not only are we (ECF) the poor relation to Yorkshire (to be expected really), but also Scotland. When are the ECF board going to stand up and just admit how useless they are. I mean really, iteration to help with the junior grade lag. I...