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From	Message
Posted by sharpgate ajaxwrite.com 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 ajaxwrite.com 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 ajaxwrite.com 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 :) ——— Chess Puzzles: Richard Reti's Marvelous Squares — A chessboard is a square, divided into 64 black and white squares. But there are more squares in chess, mostly invisible, as part of an amazing chess geometry hidden in chess players' minds. One classic square is often used in pawn endgames when a king is chasing the enemy's passed pawn. The king doesn't have to walk in horizontal or vertical lines, he can run diagonally or zig-zag across the field. But he needs to be close enough to catch the pawn. How close? The king has to walk into a square whose one side is defined as the distance between the pawn and its promoting square at the edge of the board. We can use a famous study by Richard Reti as an example. The world-class player ...
Posted by marinvukusic ajaxwrite.com 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 ——— Lahno Wins Women’s World Blitz Chess Championship — To be good at blitz, or speed, chess, players must think quickly and have good tactical skills. That is why the best chess players under slow, or classical, chess time controls are not necessarily the best at the faster form of the game. Though only 20 years old, Kateryna Lahno of Ukraine has been among the best women players in the world for seven years and is now ranked No. 7. She is actually ranked higher than Alexandra Kosteniuk of Russia, the current women’s world chess champion, who is No. 10. She is clearly an excellent classical chess player and has won the European Individual Women’s Championship twice (in 2005 and 2008). Now she has proven that she may be even more adept at speed chess. ...
Posted by taufiq ajaxwrite.com 4/15/2008 04:25:47 Play online chess	Thanks alot, Message: marinvukusic; things are all clear now :) Geert ——— A tribute to Bent Larsen — Danish chess grandmaster Bent Larsen died Sept. 9 at age 75 in Buenos Aires, his home since the 1970s. Larsen was the most successful tournament player of the late 1960s, when he rose to third in the world behind Boris Spassky and Bobby Fischer. Only losses to those two stars in Candidates matches kept him from playing for the world chess championship. Larsen had a lively mind and strong opinions, enabling him to speak knowledgeably about many subjects in more than a half dozen languages. Among chess players, he stood out for his fondness for discarded openings and his disdain for draws. He popularized 1 b3, now called Larsen's Opening. Typically, he used it irregularly over a four-year period and ...
Posted by sharpgate ajaxwrite.com 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? ——— Remembering Bent Larsen: chess's most popular grandmaster — Bent Larsen, who died last week aged 75 was world No 3 to Bobby Fischer and Boris Spassky and the most popular chess grandmaster of his time. Larsen was articulate, gregarious, outspoken and witty, so his passing stimulated an outpouring of reminiscencies and affection. Larsen's resilience, inventiveness, hard work and readiness to risk the odd loss in his quest for chess tournament victories have proved a model for some current top GMs like Vasily Ivanchuk and Shak Mamedyarov, though his liking for the offbeat openings 1 b3, 1 g3 and 1 f4 remained his lone trademark. He described himself as self-made, with only Aron Nimzovich's My System a major style influence. He thrived in ...
Posted by chessnovice ajaxwrite.com 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. ——— As Chess Olympiad Approaches, Problems Surface — The biennial Chess Olympiad does not start until Sunday, but problems and conflicts have already arisen. The biggest ongoing issue is getting to Khanty-Mansiysk, Russia, the site of the Chess Olympiad. As the city is in a remote location, the World Chess Federation had organized charter flights to carry teams there, but the schedule for the flights has changed repeatedly. The latest change occurred only two days ago. As the article notes, the repeated changes are not just making it difficult to get to the Chess Olympiad, but also more costly, and that is creating financial hardships for some of the chess federations that do not have substantial resources. In addition to the logistical ...
Posted by lighttotheright ajaxwrite.com 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 ajaxwrite.com 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 ajaxwrite.com 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 ajaxwrite.com 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 ajaxwrite.com 4/16/2008 07:08:18 Play online chess	... Message: Good point, that is an inconsistency on my part.
Posted by bonsai ajaxwrite.com 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.