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Mostrar mensagens com a etiqueta Alejandro Ramirez. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta Alejandro Ramirez. Mostrar todas as mensagens

quinta-feira, 27 de junho de 2013

Tal 2013: Anand vs. Nakamura







Realizou-se uma edição do Tal Memorial Chess Tournament em Moscovo, de 13 a 25 de Junho.

Todos os participantes ficaram acomodados no Ritz-Carlton, Moscovo. 

O evento decorreu no New Technologies Center Digital October, também em Moscovo.

O sistema usado foi um round robin com tempo de 40 minutos para os primeiros 40 lances, seguido de mais 50m para os próximos 20 lances e depois 15m para o resto do jogo, com um incremento de 30 seg./ lance desde o 1º lance.

Esta edição foi ganha por Gelfand. Em 2º lugar ficou Carlsen e em 3º Mamedyarov.













sexta-feira, 5 de abril de 2013

Candidados 2013: Magnus Carlsen - Peter Svidler 0-1


Carlsen-Svidler 0-1




Conforme dito esta manhã, aqui fica agora a derrota de Carlsen na ultima ronda do torneio de Candidados 2013. Apesar da derrota, qualificou-se para defrontar o actual campeão do mundo Anand !

Classificação final:

 

 

Aqui fica a partida (comentada) que Carlsen perdeu para Peter Svidler.

 

 

Links

Torneio de Candidados 2013: Derrota de Kramnik qualifica Carlsen






Na ronda 14 e ultima deste espetacular torneio Carlsen perdeu mas Kramik perdeu também. Assim, qualificou-se imediatamente o Magnus Carlsen para defrontar o campeão do mundo Anand ! 

Tem sido umas ultimas rondas de muitos nervos. Com a vitória renhida e sempre no fio da navalha.

Ronda 14 :
Magnus Carlsen
0-1
Peter Svidler
Vassily Ivanchuk
1-0
Vladimir Kramnik
Boris Gelfand
½-½
Alexander Grischuk
Levon Aronian
1-0
Teimour Radjabov
Playchess commentary: GM Maurice Ashley

 

Ivanchuk-Kramnik 1-0


 

Sobre este embate, Vallejo Pons adiantou no Facebook:

“If someone had told Volodia (Kramnik) that Carlsen would lose today, I’m afraid he wouldn’t have gone with the Pirc…”


Carlsen-Svidler 0-1



Carlsen precisava de uma vitória nesta 14ª ronda para garantir o primeiro lugar. A jogar uma espanhola clássica, a vantagem era mínima e ambos tentaram atacar o rei inimigo com os cavalos e bispos, de longe. No lance 31 aconteceu a desgraça e a partir dai a vantagem das negras tornou-se substancial: Svidler derrotou Carlsen.

Ficando assim a classificação final:

 

 

Aqui fica a partida (comentada) que Kramnik perdeu, dando assim a qualificação automática a Carlsen.

Links

quarta-feira, 20 de março de 2013

2013 FIDE Candidates: Boris Gelfand vs. Magnus Carlsen





Está a decorrer como sabem, de 14 de Março a 1 de Abril de 2013, o Torneio de Candidados ao titulo mundial !  

Este evento decorre em Londres, no The IET, 2 Savoy Place. Se estiverem por perto, visitem. Vale com certeza a pena.

Este evento é organizado pela FIDE e pela  AGON  e tem como patrocinador principal a State Oil Company da Republica do Azerbaijan : SOCAR.

É o torneio de candidatos mais forte da história!
 
Vamos já na ronda 3...

Round 3 March 17 at 14:00
Boris Gelfand
0-1
Magnus Carlsen
Vassily Ivanchuk
0-1
Levon Aronian
Peter Svidler
1-0
Teimour Radjabov
Vladimir Kramnik
½-½
Alexander Grischuk

[Event "FIDE Candidates 2013"]
[Site "London, England"]
[Date "2013.03.17"]
[Round "3"]
[White "Gelfand, Boris"]
[Black "Carlsen, Magnus"]
[Result "0-1"]
[ECO "D52"]
[WhiteElo "2740"]
[BlackElo "2872"]
[Annotator "Ramirez,Alejandro"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 

{A relatively strange movoeuvre, and
I'm surprised Gelfand didn't use this opportunity to go into a Karlsbad type
structure with} 

5. Bg5 

(5. cxd5 exd5 6. Bg5 {Maybe the slight subtlety that
the knight is already on f3 was uncomfortable to him?}) 

5... c6 6. e3 Qa5 

{When I think of the Cambridge-Springs, I always think of the match between
Alekhine and Capablanca! Those heavyweights employed it repeatedly in their
World Championship match, but it hasn't been prevalent since. The theory and
ideas of the position have, however, changed dramatically since that titanic
duel.} 

7. cxd5 

(7. Nd2 Bb4 8. Qc2 dxc4 9. Bxf6 Nxf6 10. Nxc4 $14 {Capablanca-Alekhine, Buenos Aires World Championship Match 1927}) 

7... Nxd5 8.Rc1 

{Unusual, but "trending". The move Qd2 is more common, but Rc1 makes more sense.

8...Nxc3 9. bxc3 Ba3 10. Rc2 b6 11. Bd3 Ba6 12. O-O Bxd3 13. Qxd3 O-O 14. e4 Rfe8
{It is clear that White has the edge, but he starts becoming too greedy on his
space grabbing.} 

15. e5 h6 16. Bh4 c5 17. Nd2 cxd4 18. cxd4 Rac8 19. Nc4 Qb5
20. f4 Rc7 21. Qxa3 Rxc4 22. Rxc4 Qxc4 23. Bf2 

{Something has gone wrong for
White, but he is still ok as he will soon get the c-file for himself.} 

23...Qc7 24.Rc1 Qb7 25. Qd6 Nf8 26. g3 Rc8 27. Rxc8 Qxc8 28. d5 exd5 29. Qxd5 g6 30. Kg2 Ne6 

{Logically, this game should almost always end peacefully, but that is not
the case when you play Carlsen.} 

31. Qf3 Kg7 32. a3 h5 33. h4 Qc2 34. Qb7 Qa4 35. Qf3 b5 36. f5 gxf5 37. Qxf5 Qxa3 38. Qxh5 a5 39. Qg4+ Kf8 40. h5 ?! 

(40.Qh5 ! b4 41. Qh8+ Ke7 42. Qf6+ Ke8 43. Qh8+ $11 {It's unclear why Gelfand
didn't force the draw as soon as possible, as only Black's pawns are dangerous.
}) 

40... Qc1 41. Qe4 b4 42. Be3 Qc7 43. Qa8+ Kg7 44. h6+ Kh7 45. Qe4+ Kg8 46.
Qa8+ Qd8 47. Qxd8+ ? 

{Going into a losing endgame, keeping the queens alive
still gave plenty of hope.} (47. Qc6 ! b3 48. Bc1 $1 {Still forces Black to
find good moves, since the piece cannot be taken immediately.} b2 ? 49. Bxb2
Qd2+ 50. Kf1 Qxb2 51. Qe8+ Nf8 52. h7+ ! +/-) 

47... Nxd8 48. Kf3 a4 49. Ke4 Nc6 

{How did Gelfand plan to stop these pawns?} 

50. Bc1 Na5 51. Bd2 b3 52. Kd3 Nc4 ! 53. Bc3 a3 54. g4 Kh7 55. g5 Kg6 56. Bd4 b2 57. Kc2 Nd2 

{Gelfand's endga
me play was very weak, and Carlsen won a point without really doing much
himself.}

 0-1











domingo, 22 de maio de 2011

Match Candidatos 2011: Mamedyarov vs. Gelfand


Mais uma partida espetáculo deste Match FIDE de Candidatos 2011 !


[Event "WCh Candidates"]
[Site "Kazan RUS"]
[Date "2011.05.07"]
[Round "1.3"]
[White "Mamedyarov, Shakhriyar"]
[Black "Gelfand, Boris"]
[Result "0-1"]
[ECO "B87"]
[WhiteElo "2772"]
[BlackElo "2733"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. O-O
Be7 9. Qf3 Qc7 10. Qg3 O-O 11. Bh6 Ne8 12. Rad1 Bd7 13. f4 Nc6 14. f5 Nxd4 15.
Rxd4 Kh8 16. Be3 Nf6 17. Qh3 d5 18. e5 Qxe5 19. Rh4 Rfc8 20. Kh1 Rxc3 21. bxc3
Qxc3 22. Rd4 a5 23. Rd3 Qc6 24. c3 a4 25. Bc2 e5 26. Bg5 b4 27. Qh4 bxc3 28.
Rh3 Kg8 29. Re1 e4 30. g4 Kf8 31. Be3 Qc4 32. g5 Bxf5 33. gxf6 Bxf6 34. Qh5 Bg6
35. Qg4 Qxa2 36. Bb1 Qc4 37. Qg2 a3 38. Ba2 Qc6 39. Rg3 Rb8 0-1



Links

.

segunda-feira, 9 de maio de 2011

FIDE Match Candidatos 2011: Kamsky vs. Topalov

http://www.chessbase.com/news/2011/kazan/candidates03.gif


Já se joga o Match FIDE de Candidatos ao Título Mundial em Kazan, capital da Republica do Tatarstan (Tatarsquistão ?). Será 3 a 27 de Maio de 2011 entre 8 GMs candidatos.


Controlo de Tempo: 120m para 40 lances + 60m para os seguintes 20 e depois 15m para acabar, mais os habituais 30 seg./lance desde a jogada 61.

Total de prémios: 500,000 Euros.


Classificação após o 3º jogo...


Nat.
Rtg
G1
G2
G3
G4
R1
R2
R3
R4
Tot.
Perf
Levon Aronian
ARM
2808
½
½
½





1.5

Alexander Grischuk
RUS
2747
½
½
½





1.5



Nat.
Rtg
G1
G2
G3
G4
R1
R2
R3
R4
Tot.
Perf
Vladimir Kramnik
RUS
2785
½
½
½





1.5

Teimour Radjabov
AZE
2744
½
½
½





1.5



Nat.
Rtg
G1
G2
G3
G4
R1
R2
R3
R4
Tot.
Perf
Veselin Topalov
BUL
2775
½
0
½





1.0

Gata Kamsky
USA
2732
½
1
½





2.0



Nat.
Rtg
G1
G2
G3
G4
R1
R2
R3
R4
Tot.
Perf
Boris Gelfand
ISR
2733
½
½
1





2.0

Shak. Mamedyarov
AZE
2772
½
½
0





1.0


Grande nível de xadrez se está a praticar nesta prova ! Como foi afirmado por muitos GMs está assitem e analisam este evento em permanência e como se pode ver ao vivo através de várias partidas já praticadas.





Comentários a esta partida...

Kamsky,Gata (2732) - Topalov,Veselin (2775) [B90]
Candidate's Matches (1.3), 07.05.2011
[Ramirez, Alejandro]

Topalov enters this game with a difficult decision. Should he try to hold for a draw and push for an all-out win with White in the 4th game, or try to risk potentially losing the match here with Black? These are problems that the super-GM from Bulgaria must answer even before the players sit at the board.

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.a4
Kamsky repeats his relatively experimental line from game one. Even though Topalov and his team were probably expecting this, it is very difficult to react in a mere two days. It's possible that they found no tangible improvement after 6... Nc6 7. a5!? so Topalov deviates back to the more usual Najdorf approach.

6...e5 7.Nf3 Be7 8.Bg5 Be6 9.Bxf6 Bxf6 10.Nd5 Nd7 11.Bc4 Rc8 12.b3 Qa5+
This game's novelty. This practically forces White's response, after which it would only make sense to trade queens. A superficial assessment would be to think that 'simplifications lead to draws', when in fact the absence of queens brings many new strategical ideas to the position.

13.Qd2 Qxd2+ 14.Nxd2 Bg5
This is a good time to get a strong hold of the position. The structure is very reminiscent of a Sveshnikov Sicilian. To compensate his backwards d6 pawn and weak d5 square, Black has the pair of bishops and a half open c-file. Of course, this isn't something that he can take advantage of immediately since the position is rather closed. But it contains potential! The old masters believed that obtaining the pair of bishops would eventually grant an advantage, because ultimately the position was bound to become open after pawn exchanges. Although chess has evolved greatly, this maxim still holds some value.

15.Kd1!?
This is an interesting move by the American. The king is perfectly safe on d1, and it holds the queenside somewhat. There is really no advantage in sending the king to the kingside, as it would serve no purpose there. The queenside rook will eventually lift through a4 (after a pawn push to a5) and go to b4, where it would be pressuring the b7 pawn. However, White is not the only one who can push rook pawns...

15...h5!
A good strategical move: Black grabs space on the kingside and prepares a potential rooklift there - but it's also important to understand the psychological implications of such a move. Because of the match situation, it is possible that Kamsky wants to play with as little risk as possible. Clearly he holds no advantage, so he does not want to commit himself to any weaknesses if he cannot see an immediate return. It is possible that for this reason he shuns the most natural move 16.h4 and gives Black a decent amount of space in the kingside. In my opinion, unnecessarily.

16.Re1?!
[16.h4 is of course the most natural continuation, but then White has to cope with the fact that h4 will be weak and g5 might be a possible break in the future. All bishop retreats make some sense at this point, but the most natural would seem to be 16...Bd8 eyeing that h4 pawn. 17.g3 Ba5 Kamsky might have looked at this position and not liked it. The computer suggests that terribly inhuman move 18.Rb1, so it's understandable how he didn't go for this line. However, White's position is solid, even if rather planless.]

16...h4
Black quickly grabs the space he was provided. White can hardly allow the pawn to go all the way to h3, so he must stop it now.

17.h3 Nf6 18.Nxf6+
[18.Nb6 was a natural alternative. However after 18...Rc5 19.a5 Nh5 Black begins to build up some pressure on the kingside. Maybe saying that Black is better is not quite true, but it does seem more pleasant to play with the Black pieces.]

18...gxf6!=/+
Topalov instantly replied with this move, and with good reason. The g-file opens with great effect to pressure the now weak g2-pawn, while his center will be bolstered after the trade of bishops on e6. This move might seem strange to some players, but to a Sveshnikov player, or a super-GM like Topalov, it is the only conceivable move.

19.Bxe6 fxe6 20.Nf3 Rg8
Kamsky must hurry and prevent Topalov from expanding in the center too quickly. He still has some resources - but haste is mandatory.

21.c4 f5 22.exf5 exf5


23.Ke2!
A resourceful move! The king's role in the center has ended, and there is no more need for him to defend the c2-square. Additionally, he was starting to become exposed, so it makes sense to transfer his majesty to f1, where it will guard the g2 pawn.

23...Be7 24.Kf1 Kf7 25.Rad1
This is another good moment to analyze what is going on. Black has achieved many things! He fixed his structure and now has a potentially dangerous pawn center. Unfortunately, there is no clear way for him to use it immediately. He will never want to advance e4 and give White the d4 square. So it transpires that a logical plan is to play b5. This can be done immediately, but Topalov shows his class and first plays an important move.

25...Rc5!
This move takes control of the fifth rank, an important element as the 25... b5 variation shows. White is running out of useful moves, so he plays his card... [25...b5!? 26.axb5 axb5 27.Rd5! This cool moves forces off more pawns than Black wants to trade. The following is only a sample line, but shows the great simplification power White has as his disposal. 27...bxc4 28.bxc4 Kf6 29.c5! Ke6 30.cxd6 Kxd5 31.dxe7 Rge8 32.Nxh4 Ke6 33.f4 Rc5 34.g4 fxg4 35.hxg4= And with the last pawn gone the draw is obvious.]

26.b4!
Maybe forced. White uses tactics to resolve some of the tension. [26.Re2 b5 27.cxb5 axb5 28.a5 b4=/+ is definitely NOT what White is looking for.]

26...Rxc4 27.Rxe5
Black has a few ways of dealing with this position. He wants to create as much play as possible, but it seems that White is holding in every line.

27...dxe5
[27...Kf6 28.Ree1 Rxb4 29.Rd4 Rxd4 30.Nxd4= And Black has no real hopes of winning as he will soon lose an important pawn.; 27...Rxb4 28.Rxf5+ Kg6 29.Ra5 The awkward placement of the rook on a5 would seem to give Black a reason to go for this line, however it is actually difficult to come up with a useful move. The pawns on d6 and h4 are rather weak, and the king will never find shelter. Practically, it is difficult to go for this line as your top choice, but it was definitely worth a try. 29...Rc8!? 30.Re1 Rc7=/+ ]

28.Nxe5+ Ke6 29.Nxc4 Bxb4 30.Rb1!
Fixing the pawns on a light square is important, as it will allow White to easily control them, or at least force Black into a major concession if he tries to advance on the queenside.

30...a5 31.Rd1 Rc8 32.Rd4
The weak pawn on h4, the controlled structure on the queenside and the active white pieces give black little hope to win, so black sets up one final trap...

32...Bc3! 33.Rxh4 Bf6 34.Rf4 Bg5
White is at a small crossroads. He could try to gain three (!) passed pawns on the kingside with 35.Rxf5!? or he could play it safe and take a draw. Topalov has simply given Gata the chance to go wrong, but he doesn't bite.

35.Rd4
[35.Rxf5!? Kxf5 (35...Rxc4 36.Rxg5 Rxa4 37.Rb5+/= Black might have enough to draw this, but no more.) 36.Nd6+ Ke6 (36...Ke5? 37.Nxc8 Kd5 transposes to Kd5 above.) 37.Nxc8 So now that we reach this position in our minds, we realize that more calculation is necessary. Black has no successful way of trying to corral the knight on c8, so he must lunge toward the queenside - and he has two ways to do this. 37...b5! Speed is everything. White can't take on b5, but he can clearly catch the pawn. (37...Kd5? 38.Ke2 Now Black's king cannot prevent White's from helping on the queenside, since he cannot afford to lose the b-pawn. 38...Kc5 (38...Kc4?! 39.Nd6+ Kb3 40.Nxb7 Kxa4 41.g3 Kb4 42.Nxa5+- ) 39.Kd3 Kb4 40.Nd6 b6 41.Nb5 Kxa4 42.Kc4+- And the pawns roll by themselves on the queenside.) 38.Ke2 bxa4 39.Kd3 Bf6 40.Kc4 a3 41.Kb3 Bd4 42.Kxa3 Kd7 43.Ka4 and the position should be drawn. Of course this crazy lines requires quite a bit of calculation, and contains many ways in which one could go wrong. Gata's choice is safe and sound.]

35...Bf6 36.Rf4 Bg5 37.Rd4 Bf6
A tenacious defense by the American. Topalov tried through every flank but eventually came up short of victory, setting up a very anticipated game tomorrow, where Topalov will push with everything he has! 1/2-1/2