The Chess Mind

Author: Dennis Monokroussos.
This is a blog for chess fans by a chess fan who is more than a chess fan - other topics do creep in from time to time, per my interest.
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Maxime Vachier-Lagrave: World Junior Champion
Sergei Zhigalko led or co-led from round 4 all the way to the finish, but despite this it was Maxime Vachier-Lagrave who won the World Junior Championship title on tiebreaks. From rounds 2-6 they had the exact same score, and the rest of the way (excepting round 9) there was an alternation between Zhigalko's being half a point ahead and their being tied. In round 7, Zhigalko won and Vachier-Lagrave drew; in round 8, the opposite. In round 10 Zhigalko won, in round 11 they were tied, and the same pattern occurred in rounds 12 and 13. Normally this would greatly favor Zhigalko in the tiebreaks, as a player in the higher score group would normally play stronger opponents, but it didn't happen this time - or didn't happen enough to give Zhigalko the overall victory. In the end, the players both had 10.5/13, but with his last round victory over Dmitry Andreikin, top seed Vachier-Lagrave won the title.

Zhigalko, obviously, came in second, and then there was a huge gap - a point and a half! - to the next score group. Three players had nine points - Michal Olszewski, Ivan Popov (who drew with Zhigalko in the last round), and Alex Lenderman. (The other U.S. representative, Ray Robson, finished with 7.5.) The nine-pointers are given in tiebreak order, so Olszewski was the bronze medalist. Congratulations to the winners!

(Final crosstable here.)
Posted by Dennis Monokroussos on Tuesday November 3, 2009 at 6:40pm
Thomas:
Indeed, on second tiebreak Zhigalko (75.5) would have been ahead of Vachier-Lagrave (74.5). TB2 is "FIDE tiebreak", presumably some sort of Buchholz. So Vachier-Lagrave was lucky that his "weaker" opposition (less successful at this occasion) happened to be slightly higher-rated. Of course this difference (average 2564 vs. 2555, in both cases excluding the lowest-rated player) is also insignificant - though it looks closer than it was because Vachier-Lagrave "pushed" Zhigalko's average when they played each other [a 13-move draw]. "Tiebreak lotteries" became even more relevant in the girls' tournament where three players were tied with 9.5/13.

In hindsight, was the boys' tournament already "decided" in the first two rounds? In round 1, Zhigalko drew against Jacques Blit (ARG, 2350). In round 2, he was paired against Belgian FM Maenhout (2303) who had drawn against Lenderman the day before. Something extra to claim for the Belgians? ,:) Their four players overperformed (three of them by more than 100 points), and they had detailed blogging coverage (http://wkjeugd.blogspot.com/< - in Dutch, too much for me to translate ...).

Anyway, congratulations to both players - kudos to Vachier-Lagrave also for showing up in the first place and risking his reputation. As far as Lenderman and Robson are concerned: both showed that they are worth their ratings or a bit more - I guess medal hopes or dreams had been exaggerated and unrealistic in the first place?
11.4.2009 4:32am
Dennis Monokroussos:
Thomas: Considering that Lenderman tied for third place, it's hard to understand a comment calling his medal hopes "exaggerated and urealistic". Anyway, while I was rooting for both Lenderman and Robson, I didn't make such claims.
11.4.2009 10:35am
Thomas:
Yes, I plead (partly) guilty. I sort of missed that Lenderman eventually came within reach of bronze - gold and silver were of course long gone.
I was mostly referring to posters on Susan Polgar's site (more hype around Robson, I sincerely hope he can handle it) and also to one person here claiming halfway through the tournament that Robson's performance was "almost" comparable to Vachier-Lagrave's.

[DM: Then the place for the comment was (primarily) Susan Polgar's site.]
11.4.2009 12:10pm
g (mail):
A quick question: was Lenderman's performance at the World Juniors enough for a GM norm? I understand that the Copper State tournament where he earned a GM norm was under investigation by FIDE so I was wondering if his performance here was enough for him to secure an extra insurance norm just in case his Copper State norm was disallowed.
11.4.2009 3:56pm
notyetagm (mail) (www):
Amazingly, Zhigalko was an unbelievable 6/6(!!!) with Black.

Black: +6 =0 -0
White: +2 =5 -0

One could argue that it hurt Zhigalko to have White in the last round. :-)
11.4.2009 4:23pm
Dennis Monokroussos:
g: A good question. The answer should be yes, but I'm not 100% sure. There are three basic requirements: 3 or more GM opponents, the right percentages of foreigners, and a 2600 TPR. The first two conditions were met with room to spare, but according to the crosstable Lenderman's TPR was only 2598 - two points short. However, because it was a 13-round tournament and not just a 9-rounder, he can get a norm based on a subset of the rounds. If he can slough off either or both of his first two games, for instance, when he drew with much lower-rated players, his remaining TPR would easily exceed 2600.

So the only question I'm aware of is whether there are restrictions on which rounds you can drop in such cases. If you're only allowed to drop later rounds, then he probably doesn't get it; if earlier rounds can be dropped as well, then it's a shoo-in.
11.4.2009 4:25pm
Kajetan Wandowicz:
FIDE Handbook 1.42f: "A player who has achieved a title result before the last round may ignore all games played subsequently, provided he has met the required mix of opponents, and provided this leaves him with at least the minimum number of games as in 1.41. A player who has achieved a title as in 1.3 may ignore all games played subsequently. See 1.52a." So I guess he narrowly missed the norm. Given that he's so young and almost did it, I wouldn't worry about him not becoming a GM in some very near future.
11.5.2009 6:33am

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