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From	Message
Posted by sharpgate www6conf.org 4/14/2008 16:25:41 Play online chess	Subject: ratings Message: Does anyone know how to approximate a 1700 GN rating to USCF rating? Ron
Posted by chuckventimiglia www6conf.org 4/14/2008 19:01:23 Play online chess	You can't!! Message: You may approximate it to a USCF CC rating but not OTB.
Posted by taufiq www6conf.org 4/15/2008 00:25:42 Play online chess	... Message: Can someone explain what GN, USCF, OTB stands for ? CC is correspondence chess, right ? Thanks in advance :)
Posted by marinvukusic www6conf.org 4/15/2008 00:47:29 Play online chess	Translation Message: GN = GameKnot (should be GK) USCF = US Chess Federation OTB = Over The Board CC = Correspondence Chess
Posted by taufiq www6conf.org 4/15/2008 04:25:47 Play online chess	Thanks alot, Message: marinvukusic; things are all clear now :) Geert
Posted by sharpgate www6conf.org 4/15/2008 06:33:48 Play online chess	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?
Posted by chessnovice www6conf.org 4/15/2008 06:48:41 Play online chess	... 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.
Posted by lighttotheright www6conf.org 4/15/2008 21:12:13 Play online chess	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 www6conf.org 4/16/2008 03:30:50 Play online chess	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 www6conf.org 4/16/2008 04:39:39 Play online chess	... 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 www6conf.org 4/16/2008 04:53:13 Play online chess	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 www6conf.org 4/16/2008 07:08:18 Play online chess	... Message: Good point, that is an inconsistency on my part.
Posted by bonsai www6conf.org 4/24/2008 23:53:09 Play online chess	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.
Chess news: Timur Gareyev wins US National Open -- Timur Gareyev, an Uzbek chess grandmaster who attends the University of Texas in Brownsville, won the US National Open last weekend in Las Vegas. Gareyev yielded a first-round draw to IM Joe Bradford of Texas but won his next five games. He was particularly tough on Southern Californians, inflicting defeats on IM Andranik Matikozyan and, in the final round, GM Varuzhan Akobian. Tied for second at 5-1 were Akobian and GMs Arthur Kogan (Israel), Alex Lenderman (New York) and Alejandro Ramirez (Costa Rica). Matikozyan tied for sixth at 41/2-11/2. There were 19 GMs in the 105-player Open section. Two Southern Californians, Danyul Lawrence and 12-year-old Michael W. Brown, shared ... A Player Steps Up His Game and Wins the National Open -- Chess players often talk of the creative aspect of chess — the role of imagination in conceiving strategies. Sometimes the desire to execute an original plan can overwhelm even the desire to win. Mikhail Tal, a former world chess champion, wrote in his autobiography that he had lost more than a few games because he had chosen a “beautiful” combination, only to discover that he had miscalculated. To borrow a baseball metaphor, a grand slam for a chess player would be to play brilliantly, win the game and defeat a strong opponent when there is a lot riding on the outcome. That is what Timur Gareev of Uzbekistan did in the final round of the National Open in Las Vegas last Sunday. He trailed ... Carlsen Sprints Ahead at King's Tournament -- With a little good fortune, Magnus Carlsen is on a tear. Carlsen, the top seed, won his third game in a row at the King’s Chess Tournament in Romania on Sunday. This time, his victim was Ruslan Ponomariov of Ukraine, who was winning for most of the game. But then he blundered (23 Rf2? instead of 23 Kh1) allowing Carlsen to turn the tables. He was also a bit fortunate in Round 5, on Saturday, when he beat Liviu-Dieter Nisipeanu of Romania. In that game, Nisipeanu had a small advantage, but Carlsen employed a nice feint and Nisipeanu took the bait (17 Qd5, he should have played 17 Nd5), after which his position was very difficult. Carlsen, a Norwegian, now has 4.5 points and ...