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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: Telegraph chess: Adams looks ahead -- Michael Adams scored his second win at the Grand Prix chess tournament in Baku, defeating the Czech GM David Navara to reach 2.5/4. The opening went wrong for Adams but a far sighted pawn sacrifice enabled the England number one to create decisive threats with two rooks and a knight against two rooks and a bishop. M Adams – D Navara; FIDE GP Baku (4); French Tarrasch. [...] Peter Wells has drawn with three highly rated chess GMs rated around 2600 after winning his first round game the European Individual Chess Championship at Plovdiv in Bulgaria. Gawain Jones is on 50%. Francisco Vallejo scored a fine match victory over Alexey Shirov at Dos Hermanas, defeating him in two tactical battles. White’s strategy in this line of the Advance Caro Kann is a swift pawn advance on ... Telegraph chess: Zero tolerance on greed -- Emil Sutovsky, a former winner of the chess event was one of only three chess players on maximum points after four rounds of the 2008 European Individual Chess Championship being contested at Plovdiv. Sutovsky won a fine game in round one which we saw on Friday where his opponent had the temerity to grab four pawns in the opening. Here is his round three effort where Black is similarly punished for his greed. E Sutovsky (2630) – I Miladinovic (2579); IX EICC Plovdiv (3); Caro Kann Advance. 1.e4 c6 2.d4 d5 3.e5 c5 4.Nf3 Nc6 5.c4 (Black's first three moves get him no nearer to castling kingside so Sutovsky opens up the game) 5...Bg4 (If 5...cxd4 6.Nxd4 Nxe5 7.cxd5 Qxd5 8.Nc3 Qa5 9.Bf4 and with Ndb5 or Bb5+ and 0–0 to follow White has a dangerous lead in development) ... Telegraph chess: Still in the balance -- There was only one decisive game in the fifth round of the FIDE/Global Chess Grand Prix at Baku as Wang Yue outplayed the former chess prodigy Sergei Karjakin from a completely level endgame. I suspect the game would have ended much earlier in a draw were it not for the rule forbidding draw offers that is in force. Wang shares the lead with Alexander Grischuk who drew with Michael Adams. Adams held the draw with black quite comfortably and after many exchanges there was no play left and the chess players were allowed to conclude. In the Queen's Indian the battle often revolves around the e4 square. Black seeks to prevent White from advancing a third pawn in the centre before playing either c7-c5, d7-d5 or Nf6-e4 and f7-f5. Mamedyarov avoids the normal move ...