Search found 199 matches

by David Williams
Thu Feb 14, 2019 3:32 pm
Forum: General Chat
Topic: Enforcing rules in League chess
Replies: 29
Views: 1411

Re: Enforcing rules in League chess

There are at least some rules which cover these situations, even if their application is not straightforward in league chess. The one I think is more difficult is the last game to finish, in a mutual time scramble, with both teams gathered round the board. And someone points out that a flag has fall...
by David Williams
Fri Jan 25, 2019 12:39 am
Forum: 4NCL
Topic: How Many Times ?
Replies: 13
Views: 1456

Re: How Many Times ?

John Upham wrote:
Thu Jan 17, 2019 10:21 am
Camberley Chess Club has nothing whatsoever to do with Camberley Juniors.
Maybe they should call themselves Spirit of Camberley Juniors.
by David Williams
Wed Jan 23, 2019 3:49 pm
Forum: General Chat
Topic: Incremental controls - the `unlimited` game.
Replies: 39
Views: 2174

Re: Incremental controls - the `unlimited` game.

There was an attempt to introduce it on Merseyside in Div 1 several years back, optional if both teams agreed, to be played on all boards. A couple of teams didn't have digital clocks, and were also unwilling to play it in away games because they would be unfamiliar with it, and therefore at a disad...
by David Williams
Mon Jan 21, 2019 12:31 am
Forum: General Chat
Topic: Todays Chess Quest.
Replies: 20
Views: 1159

Re: Todays Chess Quest.

If Tal and Stein both thought it was a draw when they concocted it, why couldn't they just play it out anyway? The worst that happens is that Tal looks to have missed an opportunity - which he supposedly did anyway when he varied. Do grandmasters really discuss each others games at length while in p...
by David Williams
Thu Dec 13, 2018 8:40 am
Forum: General Chat
Topic: Under promotion to a bishop.
Replies: 19
Views: 1453

Re: Under promotion to a bishop.

Just to put this one to bed. [FEN " 8/p3B2p/1P5P/3P4/5r2/3k4/8/6K1 "] 1. b7 Rg4+ 2. Kf2 Rg8 3. d6 Kc4 4. d7 Kb5 5. d8=Q Rd8 6. Bd8 Ka6 The stalemate position is easy enough for the composer to visualise, but to add just the two h pawns, to leave a position where two dark square bishops win, but one ...
by David Williams
Mon Dec 10, 2018 8:27 pm
Forum: General Chat
Topic: Under promotion to a bishop.
Replies: 19
Views: 1453

Re: Under promotion to a bishop.

Richard Bates wrote:
Mon Dec 10, 2018 3:52 pm
I’m struggling. Is the definitely the correct position?
Yes.
by David Williams
Mon Dec 10, 2018 10:26 am
Forum: ECF Matters
Topic: ECF to scrap its grading system
Replies: 279
Views: 14812

Re: ECF to scrap its grading system

I may be being a bit dense here. Working out the grade of someone who plays more than thirty games a year on December 31, using the current method. Whether you collect the data annually, half-yearly or hourly, the calculation is based on all the games played in the previous twelve months. The more f...
by David Williams
Sun Dec 09, 2018 11:56 pm
Forum: General Chat
Topic: Under promotion to a bishop.
Replies: 19
Views: 1453

Re: Under promotion to a bishop.


If you want to see a very special under-promotion to a bishop, try solving this study by Troitsky.
by David Williams
Sun Dec 09, 2018 1:41 pm
Forum: ECF Matters
Topic: ECF to scrap its grading system
Replies: 279
Views: 14812

Re: ECF to scrap its grading system

As I understand the current system your grade is the average grade of all the people you have played, plus or minus one point for each percentage point your record is above or below 50%. So if you have, say two wins against a 160, a draw with a 150, and a win and a loss against a 140, you have score...
by David Williams
Sat Dec 01, 2018 8:40 pm
Forum: International News
Topic: 2018 World Championship in London
Replies: 709
Views: 42391

Re: 2018 World Championship in London

If Caruana had actually played Bh4 and won, but he didn't . . .
For me, at my relatively lowly level, there was one move that I never would have considered but could understand as soon as it was played, and arguably decided the whole match, and that was Re7+ in the first rapid game.
by David Williams
Fri Nov 30, 2018 1:44 pm
Forum: International News
Topic: 2018 World Championship in London
Replies: 709
Views: 42391

Re: 2018 World Championship in London

For me the great thing about draw odds is that someone is always winning. There is always an imbalance. If you're losing by half a point there's if anything slightly more incentive to go for the win. It doesn't just bring you back to level pegging. And if you're winning the consequences of a misjudg...
by David Williams
Thu Nov 29, 2018 4:48 pm
Forum: International News
Topic: 2018 World Championship in London
Replies: 709
Views: 42391

Re: 2018 World Championship in London

When I suggested having the tie break first
Geoff Chandler wrote:
Mon Nov 26, 2018 8:04 pm
No tie breaks before the match. The winner then has draw odds.
But now
Geoff Chandler wrote:
Thu Nov 29, 2018 3:43 pm
First a case for champion draw odds returned. . .
Have you changed your mind?
by David Williams
Mon Nov 26, 2018 7:51 pm
Forum: International News
Topic: 2018 World Championship in London
Replies: 709
Views: 42391

Re: 2018 World Championship in London

Jonathan Bryant wrote:
Mon Nov 26, 2018 7:11 pm
David Williams wrote:
Mon Nov 26, 2018 6:48 pm
Wouldn't it be better if they played the whole match in reverse order?
No. For the reasons that are mentioned whenever this is suggested . . .
Remind me.
by David Williams
Mon Nov 26, 2018 6:48 pm
Forum: International News
Topic: 2018 World Championship in London
Replies: 709
Views: 42391

Re: 2018 World Championship in London

Don't reckon the organisers will be too disappointed we're headed for tiebreaks. Wouldn't it be better if they played the whole match in reverse order? Start with the Armageddon, then blitz, then rapid, and finish with the actual match. The organisers get their tiebreak, but the real point is that ...
by David Williams
Tue Nov 20, 2018 12:18 am
Forum: International News
Topic: 2018 World Championship in London
Replies: 709
Views: 42391

Re: 2018 World Championship in London

My main objection to the current format is that the result of the match can revolve around who gets which colour in the Armageddon game. Why not have the two players make sealed bids as to how long they would be prepared to have to take black? If player A is very confident of his ability to draw wi...