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by MartinCarpenter
Wed Sep 02, 2020 2:07 pm
Forum: Chess Questions
Topic: Some Q's concerning the French Defence.
Replies: 69
Views: 2443

Re: Some Q's concerning the French Defence.

I've definitely felt pretty well obliged to at least have looked at/studied something half workable after 7 Qg4 o-o. Castling in that position just looks a suicide attempt, but I'm aware that engines have tried to make it work. There's something similar that's developed in the Bg5 Najdorf, where it...
by MartinCarpenter
Wed Sep 02, 2020 11:18 am
Forum: Chess Questions
Topic: Some Q's concerning the French Defence.
Replies: 69
Views: 2443

Re: Some Q's concerning the French Defence.

I would expect people who play the Winawer to be well booked up. Especially if they're planning to allow those Qg4 x g7 lines. Those lines are scary! It varies, I think, and down at club level its often less than you'd think. I've definitely felt pretty well obliged to at least have looked at/studi...
by MartinCarpenter
Wed Sep 02, 2020 10:32 am
Forum: General Chat
Topic: (Chess) Life Returning To Normal
Replies: 942
Views: 44854

Re: (Chess) Life Returning To Normal

I believe there is risk of transmission through common surfaces which is why charity shops have decided to 'effectively quarantine some donated items, before putting on the shelves. How much risk may well depend on which expert you speak to. That's what all the emphasis on hand washing is about - i...
by MartinCarpenter
Tue Aug 25, 2020 3:17 pm
Forum: General Chat
Topic: Happy Birthday IM Jeff Horner !
Replies: 4
Views: 458

Re: Happy Birthday IM Jeff Horner !

It is a fine, richly deserved, tribute :)
by MartinCarpenter
Tue Aug 25, 2020 9:11 am
Forum: County Championships
Topic: ECF Online County Championship
Replies: 166
Views: 9678

Re: ECF Online County Championship

Well said Jon, and well done too; personally I found it a better experience than trekking round the Midlands to venues, so for Devon it must have been a big bonus I think if and when OTB county chess returns, we will see if there's appetite to continue with the online version Its interesting, I thi...
by MartinCarpenter
Tue Aug 25, 2020 9:06 am
Forum: General Chat
Topic: (Chess) Life Returning To Normal
Replies: 942
Views: 44854

Re: (Chess) Life Returning To Normal

The vaccines won't offer anything like 100% immunity anyway. They don't need to. Just knock it down by a big enough percentage that it can't reach uncontrolled spread.

Then it can go and join measles and all the other fairly horrible diseases that we've got controlled.
by MartinCarpenter
Mon Aug 24, 2020 10:31 am
Forum: County Championships
Topic: ECF Online County Championship
Replies: 166
Views: 9678

Re: ECF Online County Championship

Definitely well done to them :) Seemed very motivated all through. They don't seem to have won the main ECF one, I can't get at the NCCU records to see if they've even won that. Huge geographical dispersion of course, and (historically anyway) far fewer people than the big 2. No idea when they last ...
by MartinCarpenter
Wed Aug 19, 2020 4:57 pm
Forum: General Chat
Topic: (Chess) Life Returning To Normal
Replies: 942
Views: 44854

Re: (Chess) Life Returning To Normal

I would be very surprised if that does ultimately go ahead. Late September is definitely an a priori more promising time than those late October dates. It's the start of half-term, but I assume you're thinking of something else Martin? Maybe the fabled "second wave" might be in full force by then? ...
by MartinCarpenter
Wed Aug 19, 2020 1:44 pm
Forum: General Chat
Topic: (Chess) Life Returning To Normal
Replies: 942
Views: 44854

Re: (Chess) Life Returning To Normal

I would be very surprised if that does ultimately go ahead.

Late September is definitely an a priori more promising time than those late October dates.
by MartinCarpenter
Mon Aug 17, 2020 1:59 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 908
Views: 44459

Re: 4NCL Online

Also that its symmetrical! My hypothesis to explain the observed OTB vs Online graph is that the mean of the distribution has moved left of what is being used as the mean for testing purposes (about 1 standard deviation) and that there's then a basically normal distribution - with similar SD to over...
by MartinCarpenter
Mon Aug 17, 2020 9:22 am
Forum: 4NCL
Topic: 4NCL Online
Replies: 908
Views: 44459

Re: 4NCL Online

Roger, I think it is pretty well established that average online performance is lower than average OTB performance. This is reflected in the 4NCL graphs. We could easily incorporate this into the Regan results by lowering everyone's rating by 100 points and increasing their z scores by circa 0.5 Al...
by MartinCarpenter
Sun Aug 16, 2020 3:46 pm
Forum: 4NCL
Topic: 4NCL Online
Replies: 908
Views: 44459

Re: 4NCL Online

The other point I should like to put gently to Joseph is this. The 4NCL graph sets out to show actual performance relative to expected performance. If, as Joseph and many others appear to believe, average online performance tends to be worse than over-the-board performance, why are both shown on th...
by MartinCarpenter
Mon Aug 10, 2020 9:10 am
Forum: Deaths & Obituaries
Topic: Winston Williams
Replies: 11
Views: 1178

Re: Winston Williams

Very sad. I don't think I ever played him, but he always seemed a very nice person.

Certainly prone to playing very interesting games!
by MartinCarpenter
Tue Aug 04, 2020 9:13 am
Forum: General Chat
Topic: Lichess Flaw : Is it me ?
Replies: 7
Views: 1164

Re: Lichess Flaw : Is it me ?

Does anyone else find that there is way too much crap getting submitted as "puzzles " - positions with multiple branches and solutions, positions that only win a trivial amount of material and leave you at the mercy of a knife edge attack, and worst of all positions that continue with a bunch of 's...
by MartinCarpenter
Sun Aug 02, 2020 9:47 am
Forum: General Chat
Topic: Chess once we restart over the board
Replies: 200
Views: 17731

Re: Chess once we restart over the board

Incidentally differing preparedness to take risk is also why it is going to be far harder to get events like league chess or 4NCL going. A normal tournament organiser can put on an event knowing that they don't need to cater to all levels of individual risk assessement. Just sufficient numbers to m...