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Posted by sharpgate
wordiness.com

4/14/2008
16:25:41

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Subject: ratings

Message:
Does anyone know how to approximate a 1700 GN rating to USCF rating?
Ron


Posted by chuckventimiglia
wordiness.com

4/14/2008
19:01:23

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You can't!!

Message:
You may approximate it to a USCF CC rating but not OTB.

Posted by taufiq
wordiness.com

4/15/2008
00:25:42

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...

Message:
Can someone explain what GN, USCF, OTB stands for ?
CC is correspondence chess, right ?

Thanks in advance :)
———
Day After Chess Championship, Victor and Vanquished Reflect on the Match — One day after their title match in Sofia, Bulgaria, ended, Viswanathan Anand, the once and still chess champion, and Veselin Topalov were tired, but proud. In separate telephone interviews on Wednesday, Anand and Topalov expressed satisfaction with their own efforts and said it was the most intense chess match they had ever played. “This is my first world chess championship match that has gone the distance,” said Anand. Referring to his earlier title matches against Vladimir Kramnik in 2008, which he won, and Garry Kasparov in 1995, which he lost, he continued, “With Kramnik it went like a dream, with Kasparov it went the opposite way.” Topalov said, “Every single game was ...
Posted by marinvukusic
wordiness.com

4/15/2008
00:47:29

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Translation

Message:
GN = GameKnot (should be GK)
USCF = US Chess Federation
OTB = Over The Board
CC = Correspondence Chess
———
Anand Is World Chess Champion Again — Viswanathan Anand, the world chess champion, took advantage of a major error by Veselin Topalov to win the 12th and final game of their title match on Tuesday in Sofia, Bulgaria. The match had been tied at 5.5 points apiece. In addition to the title, Anand receives 1.2 million euros (about $1.5 million at current exchange rates). Topalov’s share of the prize fund is 800,000 euros, or about $1 million. Anand, an Indian grandmaster, became world chess champion by winning a tournament in Mexico City in 2007. He last defended the title in a match against Vladimir Kramnik, a Russian, in October 2008. Topalov, a Bulgarian, is a former world chess champion. He lost a bitter title match to ...
Posted by taufiq
wordiness.com

4/15/2008
04:25:47

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Thanks alot,

Message:
marinvukusic; things are all clear now :)

Geert
———
Title Match Is Tied With One Game to Go in Regulation — There is one more regulation game left in the World Chess Championship match in Sofia, Bulgaria. If neither Viswanathan Anand of India, the titleholder, or Veselin Topalov of Bulgaria, win on Tuesday, they will have to go to overtime. On Sunday, they drew Game 11. It was the seventh draw in the match, though, like some of the other draws, it was not without drama. Anand had White and opened with the English — the first time in the chess match he had done that. No doubt he switched openings to try to catch Topalov off-guard, but it did not work. The players followed well-known theory for 10 moves, and then Topalov deviated from earlier games, though it was a minor ...
Posted by sharpgate
wordiness.com

4/15/2008
06:33:48

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Message:
this is the issue. 40 years ago when I played on my college chess team I had a USCF rating of about 1500. 40 years later my GK rating is about 1700. Am I getting better or worst?
———
Anand's missed opportunity — The chess World Championship is on a knife-edge. But Anand could have made a mark in this game. Anand and Topalov go into the 12th game of their chess match today with scores level. If drawn, tie-break rapid games will be played on Thursday. Topalov's declaration before the match that he would neither offer nor accept a draw has clearly had a liberating effect on both players, resulting in one of the most entertaining world chess championship finals we have seen in years. All the games have been long and hard-fought, so it's hardly surprising that tiredness is affecting play. Anand missed several chances to win in game 9, Topalov had a promising endgame in game 10 but ...
Posted by chessnovice
wordiness.com

4/15/2008
06:48:41

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...

Message:
If I were in your shoes, I would take the optimist's route and believe that you are better than you were 40 years ago. That said, I think the GK rating generally inflates the "true" value of your rating ("true" because who's to say that USCF is all that accurate, either?).

There's also the possibility that your skill level remained about level. Did you read any chess books over the past few years? Have you gone over many of your games to find where you make mistakes? Do you find yourself noticing more or less inspired moves when you're playing?

Either way, if you've played for the past 40 years, I'd find it hard to believe you're getting worse.
———
Playing for the World Title, Minus Any Fireworks — Before a world chess championship match, players spend months looking at their opponent’s games and studying opening systems, often with the aid of chess computers and databases. They also hire trainers, who are called seconds, to help. It is a time- and labor-intensive process. That is one of the reasons that fans look forward to the chess matches. They want to see what the players will do and what new ideas they have discovered, particularly in the openings. The current world chess championship match between Viswanathan Anand of India, the titleholder, and Veselin Topalov of Bulgaria has been as closely contested as predicted. But there have been no eye-opening innovations. Game ...
Posted by lighttotheright
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4/15/2008
21:12:13

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Message:
OTB is different. On GK, you have more time to make the move. Your quality of game should improve because of less time pressure. A 1500 game played on GK is going to look more accurate on average than one played OTB at the presumed same class level. Some people cannot necessarily translate their skills at GK to OTB, nor OTB skills to GK performance. These are different skills sets that are difficult to transfer. Yet, just playing more accurate more often should eventually improve OTB play. It just takes time.



Posted by fmgaijin
wordiness.com

4/16/2008
03:30:50

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Chessnovice:

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If you doubt the accuracy of GK ratings vs. other CORRESPONDENCE ratings, check out the performance of Cairo's team of GK players (Peace: The Power That Preserves) in the ICCF team championships (see links on his player page) or Rodog's ICCF performances (see links on his player page).

Posted by chessnovice
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4/16/2008
04:39:39

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I don't doubt the relative strength of their ratings. I'm certain that Cairo's team is very talented. I just know from my personal vantage point... I don't really believe I play at an 1800 level.

Posted by fmgaijin
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4/16/2008
04:53:13

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Still Thinking "Absolute"

Message:
Even though you acknowledge in the first clause that chess ratings are relative to the population of the rating group, your last clause shows that you are still thinking of "1800 level" as some absolute. All it actually reflects is your position in a particular population of players, because that is all that Arpad Elo's system is designed to show. Thus, one cannot even compare Fischer's 2800 rating with Kasparov's or Topolov's because they lived in different times and even though they played in the same rating system, the population changed as players aged, died, and were replaced. If you hold a GK 1800 rating across some significant number of games and did not get it via timeouts, etc., then you are playing at an 1800 level IN THAT POPULATION.

Posted by chessnovice
wordiness.com

4/16/2008
07:08:18

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...

Message:
Good point, that is an inconsistency on my part.

Posted by bonsai
wordiness.com

4/24/2008
23:53:09

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Message:
And of course you can add or subtract any number you please from ratings. One would approximately expect a 1800 on gameknot is to score about the same against a 2200 on gameknot as a 2000 FIDE versus a 2400 FIDE (i.e. the rating difference means the same thing), at least if their past performance is indicative of their chess strength.

However even if the two ratings measured the same kind of skill (which they probably don't exactly), then it would still not be clear which points on the scales correspond to each other. Of course if the rating were comparable, then one would be able to look at players that have both ratings and possibly be able to figure out a reasonable conversion. However as said before we probably have to expect that CC and OTB ratings simply measure two related, but not identical kinds of past performance.