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Posted by sharpgate play-chess-online.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 play-chess-online.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 play-chess-online.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 :) ——— Gelfand Wins World Chess Cup — Boris Gelfand of Israel is the 2009 World Cup champion. Gelfand won the title by beating Ruslan Ponomariov of Ukraine in a playoff on Monday. The first four games of the playoff were rapid games (25 minutes per player per game) and Gelfand took the lead by winning the second game. But Ponomariov, with his back to the wall, won the last rapid game to tie the match up again. The playoff then went to blitz chess (5 minutes per player per game) and Gelfand once again took the lead by beating Ponomariov in the first game when he managed to trap Ponomariov’s queen in 21 moves. Ponomariov rallied again, winning the second game. But Gelfand won the third and Ponomariov ...
Posted by marinvukusic play-chess-online.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 ——— A tragic knight — The London Chess Classic, a fabulously organized eight-player elite tournament, shaped up as a confrontation between two great chess grandmasters, the top-rated Magnus Carlsen of Norway and the former world chess champion Vladimir Kramnik of Russia. By the luck of draw, they met in the first round, and Carlsen won. The Norwegian GM was still in a clear lead on Sunday with four points in five rounds, a full point ahead of Kramnik. U.S. chess champion Hikaru Nakamura drew four games and lost one. The tournament concludes Tuesday. The Carlsen-Kramnik duel looked like a perfectly played game by the Norwegian, who took advantage of Kramnik's stranded knight. "If one piece is ...
Posted by taufiq play-chess-online.com 4/15/2008 04:25:47 Play online chess	Thanks alot, Message: marinvukusic; things are all clear now :) Geert ——— A Game Lasts 163 Moves, and That's Not Even a Record — Chess professionals are conditioned to games that take four to five hours and last about 50 moves, but occasionally play lasts much longer and the contest becomes a war of attrition. That is what happened between Nigel Short and Luke McShane of England in the first round of the London Chess Classic, which started on Tuesday. McShane, who had White, got a tiny advantage out of the opening, but Short defended well, and after 60 moves it seemed as if the game would end in a draw. But McShane, 25, persisted and Short, 44, was forced to continue to defend. It took McShane seven hours, and 163 moves, but he finally broke Short and forced him to resign. That ...
Posted by sharpgate play-chess-online.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? ——— Soviet training methods still reign in the chess world — Two decades after the USSR broke up, Soviet training methods remain potent at the chess board. When the field of 128 was reduced to the quarter-finals in the current World Chess Cup, all eight grandmasters remaining had their education from Soviet coaches. The final four-game match now in progress to decide who qualifies for the 2010 candidates is between Ukraine's Ruslan Ponomariov, who won the 2002 World Cup as a teenager, and Boris Gelfand, the 41-year-old top seed. In the semi-finals Ponomariov beat Vlad Malakhov 4-2 while Gelfand eliminated Sergey Karjakin 2-0. In both the semi-final and in the game below the Israeli chess veteran defeated ...
Posted by chessnovice play-chess-online.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. ——— Bennett and King on chess: Carlsen-Nakamura, BNbank Blitz, 2009 — The London Chess Classic, the strongest chess tournament to be held in this country for 25 years, begins today at Olympia. Magnus Carlsen, the brilliant 19-year-old Norwegian, is one of the favourites, but he was dealt a psychological blow when he lost to one of the other participants, US chess champion Hikaru Nakamura, in a blitz tournament in Oslo 10 days ago. Carlsen played the classier chess, but Nakamura proved to be the better hustler. This was the game that turned the match around. Carlsen is threatening to queen the pawn, but Nakamura, with just a few seconds on his clock, found a win. RB: One of the first chess books I owned was Practical Chess Endings by ...
Posted by lighttotheright play-chess-online.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 play-chess-online.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 play-chess-online.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 play-chess-online.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 play-chess-online.com 4/16/2008 07:08:18 Play online chess	... Message: Good point, that is an inconsistency on my part.
Posted by bonsai play-chess-online.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.