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From	Message
Posted by sharpgate playchesscomputer.net 4/14/2008 16:25:41 Play chess computer	Subject: ratings Message: Does anyone know how to approximate a 1700 GN rating to USCF rating? Ron
Posted by chuckventimiglia playchesscomputer.net 4/14/2008 19:01:23 Play chess computer	You can't!! Message: You may approximate it to a USCF CC rating but not OTB.
Posted by taufiq playchesscomputer.net 4/15/2008 00:25:42 Play chess computer	... Message: Can someone explain what GN, USCF, OTB stands for ? CC is correspondence chess, right ? Thanks in advance :) ——— For One Teenage Chess Champion, Moscow Is a Charmed City — Le Quang Liem startled the chess world last year when he won the top section of the prestigious Aeroflot Open in Moscow. He was 18 and had just entered the top 100. The victory earned Le Quang an invitation to the Sparkassen Chess Meeting tournament in Dortmund, Germany. There he showed that his performance in Moscow had not been a fluke by finishing second. By September, he was ranked No. 41 in the world. His fall came just as quickly, first at the Chess Olympiad in Khanty-Mansiysk, Russia, where he struggled, and then at the Asian Games in Guangzhou, China, where he lost all but one of his games. Le Quang, who is from Vietnam, began 2011 ranked No. 79. Last week, ...
Posted by marinvukusic playchesscomputer.net 4/15/2008 00:47:29 Play chess computer	Translation Message: GN = GameKnot (should be GK) USCF = US Chess Federation OTB = Over The Board CC = Correspondence Chess ——— Le Quang Liem produces second shock win at Moscow Aeroflot — Moscow Aeroflot is the strongest and most fiercely competitive open chess tournament in the world, with a €20,000 first prize and nearly 50 entrants rated above 2600, the level of a high-class grandmaster. So it was remarkable that the winner in this week's Aeroflot 2011 should be the same Vietnamese teenager who scored a shock victory there in 2010. Last year Le Quang Liem won Aeroflot at 18, finished second in an elite chess event at Dortmund ahead of the former world chess champion Vlad Kramnik and soared up the world rankings. Le's hot streak then subsided until the second half of Tata Steel Wijk aan Zee last month, where he almost caught Luke McShane at the post. Now he ...
Posted by taufiq playchesscomputer.net 4/15/2008 04:25:47 Play chess computer	Thanks alot, Message: marinvukusic; things are all clear now :) Geert ——— Ugandan girl, Phiona Mutesi leads chess revolution from the slums — Despite background the 15-year-old girl is already country's number two chess player and has competed at World Chess Olympiad. In a rickety church in a Ugandan slum, a girl's hand thrusts forward and a black bishop falls. The girl shows no emotion, though she knows the end is near. Striking quickly, silently, the black queen is toppled, and then the king. Only then does she smile. "You attacked too much," she tells the boy sitting opposite her on the wooden bench, a homemade board between them. Phiona Mutesi is 15. She has just finished primary school and is still learning to read. Her family is so poor they have been evicted from tiny, rented shacks more times than she ...
Posted by sharpgate playchesscomputer.net 4/15/2008 06:33:48 Play chess computer	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? ——— First Came the Machine That Defeated a Chess Champion — Before there was Watson, there was Deep Blue. In 1997, Deep Blue, another computer built by I.B.M., defeated the world chess champion, Garry Kasparov, in a six-game match. At the time, it was considered a stunning achievement and a significant step forward in the field of artificial intelligence. Some people said that a new era would be ushered in, one in which computers would perform many tasks — like air traffic control — that it once seemed only humans could do. That era has not quite materialized. But almost 14 years later, chess programs running on an average desktop computer can play better than Deep Blue, making its victory no longer seem as implausible. And while the research that ...
Posted by chessnovice playchesscomputer.net 4/15/2008 06:48:41 Play chess computer	... 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. ——— Chess: How to play like a world champion — The latest study of Vishy Anand concentrates on the world chess champion's outstanding strategic judgment. We'd all like to play like a world chess champion. So what's Vishy Anand doing that's so special? Last week we highlighted his depth of calculation, this week we focus on his strategic judgment. RB: I have no idea what to do here. I have no idea if Black is better or worse and I have no idea what Black's plan might be. Is the white queen trappable? It certainly looks locked in, but without a light-squared bishop it's hard to see how to exploit this. Is there anything in 1...Nc5...? No, apart from a lost piece. Opening the a-file with 1...axb4 might be an option, but ...
Posted by lighttotheright playchesscomputer.net 4/15/2008 21:12:13 Play chess computer	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 playchesscomputer.net 4/16/2008 03:30:50 Play chess computer	Chessnovice: Message: 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 playchesscomputer.net 4/16/2008 04:39:39 Play chess computer	... Message: 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 playchesscomputer.net 4/16/2008 04:53:13 Play chess computer	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 playchesscomputer.net 4/16/2008 07:08:18 Play chess computer	... Message: Good point, that is an inconsistency on my part.
Posted by bonsai playchesscomputer.net 4/24/2008 23:53:09 Play chess computer	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.