The wrong choice of ending
27.01.2010 – In round 7 in Wijk, Nigel Short was within touching distance of a win over Ex-World Champion Vladimir Kramnik. In the position in the diagram he had to decide whether to exchange queens or to gobble up another pawn with Qxc5. Short chose 50.Qxc5, but after 50...Be6! 51.g4 Bxf5 52.Qxf5 Qb2+ the activity of the black queen turned out to be the decisive drawing factor, despite Black being two pawns behind. But how should the minor piece ending after 50.Qxf6 gxf6be evaluated? Can the extra pawn be made to tell in the struggle of knight against bishop? Yes, says GM Karsten Müller in ChessBase Magazine Online.
quinta-feira, 28 de janeiro de 2010
Your judgement, please - Pt. 46
Your judgement, please - Pt. 45
Wijk aan C
28.01.2010 – Seeing all these superstars at the Corus Tournament 2010, one can easily forget that also the C-group provides a wealth of highly interesting chess. For example this game, where White after Black's last move 23...Bg7-f6 had to parry the attack on his queen. The strike 24.Rxf5 in your opinion leads to what?
A) advantage for White;
B) balanced play;
C) advantage for Black.
The solution is here, but first ponder over it with a larger version of the diagram.
The strike 24.Rxf5 in your opinion leads to what?
A) advantage for White;
B) balanced play;
C) advantage for Black.
domingo, 24 de janeiro de 2010
Your judgement, please - Pt. 44
A stunning exchange sacrifice...
24.01.2010 – ...in the Marshall Attack was unleashed by Peter Leko in the 4th round in Wijk aan Zee versus Lenier Dominguez. Playing black, here he was facing the question of whether it would be advisable to immediately occupy the long diagonal with 23...Bc6 despite the riposte 24.d5, blocking it with tempo. What do you think?
A) this wins for White;
B) Black prevails;
C) the position eventually remains balanced.
The solution is here, but first ponder over it with a larger version of the diagram.
How do you assess the position after 23...Bc6 24.d5?
A) this wins for White;
B) Black prevails;
C) the position eventually remains balanced.
Magnus Carlsen: ’O garoto de meio milhão de jogadas’
A revista Veja publicou em sua edição de número 2149, de 27 de janeiro, reportagem sobre o GM Magnus Carlsen: ’O garoto de meio milhão de jogadas’.
Leia a reportagem na íntegra pelo link: http://veja.abril.com.br/270110/garoto-meio-milhao-jogadas-p-106.shtml
sexta-feira, 22 de janeiro de 2010
Your judgement, please - Pt. 43
El caballo es mal defensor
Si tiene que actuar él solo, el caballo muchas veces tiene problemas en el final para defender uno de los flancos. Si los peones no tienen una posición muy particular que le favorezca, normalmente no suele servir para ello. A eso se debe el sacrificio de pieza 35.Txc4!? Txc4 36.Cxc4 Rxc4 37.Re4!, jugado en la partida Lock vs. Webb en el torneo magistral de Hastings. Las blancas causaron serios problemas prácticos al oponente negro. ¿Cuál es su valoración de la posición tras dicha secuencia? ¿Aún podrán empatar las negras o triunfarán los peones del bando blanco? El GM Karsten Müller ha analizado la posición para ChessBase Magazine Online...- Análisis de la partida Lock vs. Webb por el GM Karsten Müller... - DVDs de entrenamiento de finales en la tienda de ChessBase...
Las blancas intentaron 35.Txc4!? Txc4 36.Cxc4 Rxc4 37.Re4!
¿Aún podrán empatar las negras o triunfarán los peones del bando blanco?
terça-feira, 19 de janeiro de 2010
Your judgement, please - Pt. 42
To sacrifice or not to sacrifice?!
19.01.2010 – A complicated position arose during time trouble in Tomashevsky (2708) vs Fier (2653). The pawn structure leaves us in no doubt: it was a King's Indian. The sacrifice 35...Bxg4 is on the cards, but calculating through all the consequences accurately is hardly possible. What does your intuition tell you?
A) The sacrifice is unsound. Black does not get sufficient compensation.
B) The sacrifice is playable. The position remains balanced.
C) 35...Bxg4 decides the game in Black's favour.
The solution is here, but first ponder over it with a larger version of the diagram.
How do you assess 35...Lxg4
A) The sacrifice is unsound. Black does not get sufficient compensation.
B) The sacrifice is playable. The position remains balanced.
C) 35...Bxg4 decides the game in Black's favour.
sábado, 16 de janeiro de 2010
Your judgement, please - Pt. 41
'The best game of the last 20 years'...
16.01.2010 – ... Jan Timman wrote about this encounter between two absolute top grandmasters of the 70s and 80s. Here Black played 21...Bb5 and later succumbed in a remarkable attack. How would you assess the position after 21...Nxc7 instead?
A) The second player maintains his plus pawn without risk;
B) White gets the advantage;
C) the result is a draw by perpetual check.
The solution is here, but first ponder over it with a larger version of the diagram.
A) The second player maintains his plus pawn without risk;
B) White gets the advantage;
C) the result is a draw by perpetual check.
sábado, 9 de janeiro de 2010
Your judgement, please - Pt. 40
The automatic recapture...
09.01.2010 – ... of the bishop was what White expected in this position after 25.Bxg7, yet immediately after his move he suddenly realised the possibility 25...Qxb3 26.axb3 Rba6. How would you assess the situation after that?
A) Black checkmates;
B) this eventually leads to a position with equal chances;
C) White gets the advantage.
The solution is here, but first ponder over it with a larger version of the diagram.
Position after 25.Bxg7
How would you assess the situation after 25...Qxb3 26.axb3 Rba6.
A) Black checkmates;
B) this eventually leads to a position with equal chances;
C) White gets the advantage.
terça-feira, 5 de janeiro de 2010
Calendário de eventos enxadrísticos - Janeiro/2010
Calendário de janeiro/2010
5 a 10: IRT Final do Campeonato Mineiro Absoluto 2009 - 12 finalistas - premiação: R$600,00 ($200,00 ao campeão) - Belo Horizonte - logo mais 13h: Laerte da Carvalho x José Carlos da Silva, Lucas de Oliveira x João Paulo Marques, Frederico Gazel x Daniel Castro, Bruce Ramos x José Antonio Nery Junior, Osmar da Silva Junior x João Carlos da Costa e Gilmar Machado x MF Roberto Junio Molina. Às 18h: José Carlos x Molina, João Carlos x Gilmar, Nery Junior x Osmar, Castro x Ramos, Marques x Gazel e Laerte x Lucas. Amanhã haverá nova rodada dupla, nos mesmos horários.
8 a 10: IRT Auriberto Ticianelli - fechado, 12 jogadores - Maceió
9: 2º Torneio Início Galeria Borba Gato - premiação: R$300,00 ( $100,00 ao campeão ) - São Paulo
10: 1º torneio da série do Restaurante Frango Assado - ritmo 21 minutos - Sumaré - SP
12 a 17: 2º IRT Casa do Xadrez - fechado, 12 jogadores, 7 com rating Fide - Belo Horizonte
14 a 17: IRT Magistral Aberto Petrolina - PE
16 e 17: Campeonato Cearense Feminino 2009 - premiação: R$300,00 ( $150,00 à campeã ) - inscrições gratuitas - Fortaleza
16 e 23: 7º Aberto de Verão Galeria Borba Gato - relógio digital de xadrez ao campeão - São Paulo
16 a 24: IRT Memorial Vanderley Cason de Melo - fechado, 14 jogadores - Campinas - SP
16 a 24: IRT Campeonato Fluminense Absoluto 2009 - Rio de Janeiro
16 e 17: Semifinal e Final Feminina do Campeonato Absoluto Alto Paranaíba e Triangulo Mineiro de Xadrez Pensado 2009 - Valendo 6 vagas para a Final - 500,00 para Semifinal e 100,00 para a Final Feminina - camisetas do evento aos 30 primeiros inscritos - Araxá
17 e 18: Campeonato Cearense Feminino 2009 - inscrições gratuitas - Fortaleza
22 a 24: 2º IRT Memorial Bobby Fischer - premiação: R$2.000,00 ($800,00 ao campeão) - João Pessoa
23 e 24: Campeonato Cearense do Interior - Quixadá
24: 2º torneio da série do Restaurante Frango Assado - ritmo 1 minutos - Sumaré - SP
25: 4º Campeonato de Duplas Inter-Bairros de São Paulo
25: Torneio Relâmpago Cidade de São Paulo, agora valendo pelo Campeonato Estadual da modalidade
31: - Torneio Mensal de Xadrez do Sesc Interlagos/1ª Etapa do Grand Prix. Inscrições antecipadas até 30/01, 13 h, pelo e-mail xadrez@interlagos.sescsp.org.br
Entrevista de Magnus Carlsen a revista Time
Magnus Carlsen en 'Time'
En muy poco tiempo, la prestigiosa revista "Time" ha publicado dos reportajes sobre Magnus Carlsen. El 25 de diciembre publicó una entrevista con la súper estrella de ajedrez en la cual nuevamente demostró un fino sentido de humor. Preguntado por el trágico destino de los que otrora niños prodigios Morphy y Fischer, el noruego de 19 años opinó que es fácil dejarse llevar por completo por el ajedrez, pero que por ahora no tenía la sensación de ir a volverse loco. A Magnus el ajedrez no le parece un arte, sino un tipo de combate. La meta para él siempre es vencer a su oponente y encontrar siempre las jugadas más desagradables posibles para el rival. Se suele entrenar exclusivamente en el ordenador. "A veces nos vienen a visitar a casa y piensan que deberíamos tener muchos tableros de ajedrez. Entonces les contesto: 'Puede que en alguna parte tengamos uno, pero ahora no sé muy bien, dónde está'". Ayer "Time" publicó otro retrato del noruego, titulado "A Bold Opening for Chess Player Magnus Carlsen" (Una apertura valiente para el ajedrecista Magnus Carlsen) escrito por Eben Harrell, que pueden leer en inglés en la web de Time...
Your judgement, please - Pt. 39
Barriers
05.01.2010 – An active king often plays a decisive part in rook endings. If it can support a passed pawn in its advance, then the king and pawn form an extremely deadly duo. So the ability of the rook to cut off the king horizontally or vertically from one of the theatres of war and thus to restrict its activity is an important weapon in the arsenal of endgame technique. Karsten Müller has selected a recent endgame in which the theme of the barrier and the struggle against it are in the foreground.
Analysis of Brynell-Popov for ChessBase Magazine Online.
segunda-feira, 4 de janeiro de 2010
The strongest players of all time
05.01.2010 – According to the current FIDE rankings Magnus Carlsen is the strongest player in the world. But his rating of 2810 is not the highest ever. That was achieved by Garry Kasparov, who in the July 1999 FIDE list reached 2851 points. Two other players have at some stage had higher ratings than Magnus. Here's a list of all Super-GMs (over 2700) and their top ratings.
Top Ratings of Super-GM
Three years ago Przemek Jahr of Pila, Poland, sent us a list of all players who had reached a rating of 2700 or higher, giving their highest ever ratings and the year and the FIDE list in which it was achieved. Chess fan Kostantin Ikonomovski of Jankovec, Macedonia, has been updating this list meticulously and sent us the latest version that incorporates all list up to the January 1st 2010 FIDE rankings.
Konstantin is a member of the amater team of Alkaloid for many years; "That meant that I used to have four extra vacations every year on company expences," he writes, "always in some wonderful places throughout the former Yugoslavia. I carry beautiful memories of this."
Top ten players of all time
The highest rating ever, by Garry Kasparov, is 38 points more than any other player in history. Five players have crossed the 2800 mark, five players have come within twenty points of it. Here's the complete table.
Super-GMs who achieved a 2700 or higher rating
#
Surname, Name Nat.
Born
Max
When
01.10 1
Kasparov, Garry RUS
1963
2851
1999.07
2812
2
Topalov, Veselin
BUL
1975
2813
2006.07
2805
3
Kramnik, Vladimir
RUS
1975
2811
2002.01
2788
4
Carlsen, Magnus
NOR
1990
2810
2010.01
2810
5
Anand, Viswanathan
IND
1969
2803
2006.04
2790
6
Morozevich, Alexander
RUS
1977
2788
2008.07
2732
7
Ivanchuk, Vassily
UKR
1969
2787
2007.10
2749
8
Aronian, Levon
ARM
1982
2786
2009.11
2781
9
Fischer, Robert
USA
1942
2785
1972.04
2785
10
Karpov, Anatoly RUS
1951
2780
1994.07
2619
11
Svidler, Peter
RUS
1976
2765
2006.01
2744
12
Leko, Peter
HUN
1979
2763
2005.04
2739
13
Radjabov, Teimour
AZE
1987
2761
2009.01
2733
14
Gelfand, Boris
ISR
1968
2761
2010.01
2761
15
Mamedyarov, Shakhriyar
AZE
1985
2760
2008.01
2741
16
Jakovenko, Dmitry
RUS
1983
2760
2009.01
2730
17
Gashimov, Vugar
AZE
1986
2759
2010.01
2759
18
Shirov, Alexei
ESP
1972
2755
2008.01
2723
19
Adams, Michael
ENG
1971
2755
2000.07
2694
20
Movsesian, Sergei
SVK
1978
2751
2009.01
2704
21
Grischuk, Alexander
RUS
1983
2750
2009.04
2736
22
Wang, Yue
CHN
1987
2749
2010.01
2749
23
Kamsky, Gata
USA
1974
2745
1996.07
2693
24
Ponomariov, Ruslan
UKR
1983
2743
2002.04
2737
25
Bareev, Evgeny
RUS
1966
2739
2003.10
2643
36
Eljanov, Pavel
UKR
1983
2736
2010.01
2736
27
Polgar, Judith
HUN
1976
2735
2005.07
2682
28
Nakamura, Hikaru
USA
1987
2735
2009.09
2708
29
Karjakin Sergey
RUS
1990
2732
2008.01
2720
30
Bacrot, Etienne
FRA
1983
2731
2005.04
2713
31
Vachier-Laqrave, Maxime
FRA
1990
2730
2010.01
2730
32
Navara, David
CZE
1985
2725
2006.10
2708
33
Alekseev, Evgeny
RUS
1985
2725
2009.09
2703
34
Ni, Hua
CHN
1983
2724
2009.04
2657
35
Dominguez Perez, Lenier
CUB
1983
2721
2009.04
2712
36
Malakhov, Vladimir
RUS
1980
2716
2009.09
2716
37
Salov, Valery
RUS
1964
2715
1995.01
2644
38
Wang Hao
CHN
1989
2715
2010.01
2715
39
Van Wely, Loek
NED
1972
2714
2001.10
2652
40
Bu, Xiangzhi
CHN
1985
2714
2008.10
2682
41
Akopian, Vladimir
ARM
1971
2713
2006.07
2700
42
Cheparinov, Ivan
BUL
1986
2713
2008.01
2660
43
Short, Nigel
ENG
1965
2712
2004.04
2707
44
Sasikiran, Krishnan
IND
1981
2711
2009.01
2664
45
Vellejo-Pons Francisco
ESP
1982
2711
2009.11
2711
46
Beliavsky, Alexander
SLO
1953
2710
1997.07
2657
47
Motylev Alexander
RUS
1979
2710
2009.07
2697
48
Almasi Zoltan
HUN
1976
2710
2010.01
2710
49
Tomashevsky Evgeny
RUS
1987
2708
2009.11
2705
50
Nisipeanu, Liviu-Dieter
ROM
1976
2707
2005.10
2681
51
Kasimdzhanov, Rustam
UZB
1979
2706
2001.10
2702
52
Sokolov, Ivan
BIH
1968
2706
2004.01
2649
53
Tal, Mikhail LAT
1936
2705
1980.01
2705
54
Dreev, Alexey
RUS
1969
2705
2003.10
2650
55
Milov, Vadim
SUI
1972
2705
2008.07
2644
56
Jabava Baadur
GEO
1983
2704
2010.01
2704
57
Rublevski, Sergei
RUS
1974
2703
2009.07
2697
58
Krasenkow, Michal
POL
1963
2702
2000.07
2656
59
Smirin, Ilia
ISR
1966
2702
2001.07
2668
60
Khalifman, Alexander
RUS
1968
2702
2001.10
2616
61
Azmaiparashvili, Zurab
GEO
1960
2702
2003.07
2637
62
Bologan, Viktor
MDA
1971
2700
2005.04
2692
63
Tiviakov, Sergei
NED
1973
2700
2005.10
2662
64
Naiditsch Arkadij
GER
1985
2700
2008-04
2687
Colour codes: Veteran active, Retired, Deceased
sexta-feira, 1 de janeiro de 2010
Your judgement, please - Pt. 38
The huge space advantage...
01.01.2010 – ... of White in the diagram position was obvious, yet with 24...Qb6 Black had produced the double threat 25...Bxa3 and 25...Nxe5 26.Bxe5 Rxe5. How would you assess the position now?
A) White can win material;
B) he is optically better, but there is nothing concrete;
C) looks are deceptive, the first player is on the defence.
The solution is here, but first ponder over it with a larger version of the diagram.
Position after 24...Qb6
A) White can win material;
B) he is optically better, but there is nothing concrete;
C) looks are deceptive, the first player is on the defence.