Search found 4155 matches

by John McKenna
Sat Aug 15, 2020 7:03 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 867
Views: 39704

Re: 4NCL Online

"... whether a Normal distribution is likely to give a reliable result when it is most unlikely that the data actually conforms to a Normal distribution." I believe whether or not a data set conforms to a Normal distribution can be tested for. The extract reproduced by John was intended as a maxim ...
by John McKenna
Fri Aug 14, 2020 9:23 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 867
Views: 39704

Re: 4NCL Online

"... whether a Normal distribution is likely to give a reliable result when it is most unlikely that the data actually conforms to a Normal distribution."

I believe whether or not a data set conforms to a Normal distribution can be tested for.
by John McKenna
Fri Jul 24, 2020 7:54 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 867
Views: 39704

Re: 4NCL Online

1st 4NCL Online Tournament Best Performance Prizes announced -

http://www.4ncl.co.uk/fide/online/winners_1.htm
by John McKenna
Sat Jul 18, 2020 1:56 am
Forum: Grading Debate
Topic: Summary of the new grading system?
Replies: 5
Views: 613

Re: Summary of the new grading system?

Where could I find a summary of the new grading system? Of interest, I am particularly keen to understand the relationship between win% and grade differential. In the current ECF system, it is rather easy: a difference of ten implies a 60/40 win ratio, a 20 point implies a 70/30, up to 50 where the...
by John McKenna
Thu Jul 16, 2020 5:24 pm
Forum: Congress Diary
Topic: Loz Cooper's 50th Birthday Blitz
Replies: 18
Views: 830

Re: Loz Cooper's 50th Birthday Blitz

Thanks for the results and, oh, happy day...
by John McKenna
Thu Jul 16, 2020 5:08 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 1265
Views: 122953

Re: Cheating in chess

"I will be fascinated to hear how in the following 4th round game he managed to achieve the following:- 12 moves of theory, followed by out of the remaining 39 moves, 36 moves are the 1st choice of Stockfish, 2 moves are the 2nd choice and 1 move is the 4th choice." (the comment on the kingrich3 ga...
by John McKenna
Thu Jul 16, 2020 12:21 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 1265
Views: 122953

Re: Cheating in chess

The whole question for OTB players of playing online can written off, of course, as done so summarily above. Just a 'blip' in a gap in an enforced interlude of indeterminate duration and of no great consequence for some, and not only the cheats. The giving of the benefit of any doubt at all - even t...
by John McKenna
Wed Jul 15, 2020 12:43 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 1265
Views: 122953

Re: Cheating in chess

RdC, above, "Thinking back to the 4NCL online league, have there been performance ratings published?" ECF Online Ratings (May 2020) Events received (see link below for button) - 04/2020 lichess  4NCL Online All Divisions Rounds 1 to 4  04/2020 lichess J4NCL Online Rounds 1 to 3  https://englishchess...
by John McKenna
Mon Jul 13, 2020 4:13 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 1265
Views: 122953

Re: Cheating in chess

Between there and your 21.Nf5? (Pf4 retains the advantage) Black was just about hanging on and it looked like he would soon lose. (Can you point to where you "reach a +5 position", please?) I think your suggestion of f4 may be it. There's threats of e5, f5 etc. with a general splat of the King in t...
by John McKenna
Mon Jul 13, 2020 1:49 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 1265
Views: 122953

Re: Cheating in chess

A very strange game by Black - from where did he get 7... Qd5? (Obviously not an engine.) Between there and your 21.Nf5? (Pf4 retains the advantage) Black was just about hanging on and it looked like he would soon lose. (Can you point to where you "reach a +5 position", please?) Exactly at that poi...
by John McKenna
Mon Jul 13, 2020 12:36 pm
Forum: General Chat
Topic: Cheating in chess
Replies: 1265
Views: 122953

Re: Cheating in chess

I played in round 1 on Friday evening. I recently had an operation and have been taking Codeine all week, which makes you somewhat drowsy... SNIP I proceeded to reach a +5 position, but was struggling to calculate clearly and using too much time. At a certain point I was aware that he was making ve...
by John McKenna
Wed Jul 08, 2020 2:26 pm
Forum: Chess History
Topic: The Leicester Chronicle
Replies: 2
Views: 402

Re: The Leicester Chronicle

In the 2nd photo "Lieutenant Cartier" looks unsurprisingly like Savielly Tartakower.
by John McKenna
Mon Jul 06, 2020 6:24 pm
Forum: General Chat
Topic: Using a ball in chess
Replies: 14
Views: 1043

Re: Using a ball in chess

What Joey decried, above, is the wrecking ball.
by John McKenna
Sun Jul 05, 2020 5:23 pm
Forum: Not Chess!
Topic: COVid19-What's wrong with UK?
Replies: 89
Views: 5301

Re: COVid19-What's wrong with UK?

On the Fourth of July 1806 we set sail from the sweet cove of Cork We were sailing away with a cargo of bricks for the grand City Hall in New York 'Twas a wonderful craft, she was rigged fore and aft and oh, how the wild wind drove her She stood several blasts, she had twenty-seven masts and they c...
by John McKenna
Sat Jul 04, 2020 6:37 pm
Forum: General Chat
Topic: The Chess Chase
Replies: 4
Views: 843

Re: The Chess Chase

The obvious "Chaser" of popular choice would be Danny G.