Your judgement, please - Pt. 85

Retirado do site Chessbase.com.

Letales jugadas intermedias
En el final de torre de la partida Wang Yue - Nisipeanu, disputada en el reciente torneo Regilor jugado entre Medias y Bazna, en Rumanía, puede que las negras tengan un peón de menos, pero sus piezas sencillamente bullen de actividad y están bien coordinadas. El peón pasado en el flanco de dama está eficazmente apoyado por el rey y la torre mantiene en la primera fila al monarca blanco, aislado del resto de la batalla. En la posición del diagrama, les toca jugar a las negras. ¿Se le ocurre una ejemplar variante ganadora? ¿Debería comenzar con 56...b4 o con 56...Rc3? Compare sus análisis con los comentarios que ofrece Karsten Müller en ChessBase Magazine Online.

Wang Yue-Nisipeanu, Medias/Bazna 2010

En el final de torre de la partida Wang Yue - Nisipeanu, puede que las negras tengan un peón de menos, pero sus piezas sencillamente bullen de actividad y están bien coordinadas. El peón pasado en el flanco de dama está eficazmente apoyado por el rey y la torre mantiene en la primera fila al monarca blanco, aislado del resto de la batalla. En la posición del diagrama, les toca jugar a las negras. ¿Puede idear una ejemplar variante ganadora? ¿debería comenzar con 56...b4 o con 56...Rc3? Compare sus análisis con los comentarios que ofrece Karsten Müller en ChessBase Magazine Online.

Análisis Wang Yue-Nisipeanu por el GM Karsten Müller.

Enlaces:

• Todos los problemas de ajedrez de 2010...

Your judgement, please - Pt. 84

Retirado do site Chessbase.com.

Aguanta tus caballos...
... antes de capturar los del enemigo. Parece que eso fue lo que pensaron las blancas cuando jugaron 34.Cb4-c2, con lo que controlan la casilla a1 y amenazan después con capturar al caballo clavado Cb6. ¿Cómo queda ahora la posición de las negras?
A) Es ganadora;
B) perdedora
C) ligeramente peor.
Tiene la solución aquí, pero antes de mirarla le sugerimos que reflexione sobre el problema

Aguanta tus caballos antes de capturar los del enemigo. Parece que eso fue lo que pensaron las blancas cuando jugaron 34.Cb4-c2, con lo que controlan la casilla a1 y amenazan después con capturar al caballo clavado Cb6. ¿Cómo queda ahora la posición de las negras?
A) Es ganadora;
B) perdedora
C) ligeramente peor.

Solución

Enlaces:

• Todos los problemas de ajedrez de 2010...

Your judgement, please - Pt. 83

Retirado do site Chessbase.com.

Combinar ataque con defensa
Esa receta suele ser una buena idea y eso debieron pensar las blancas cuando jugaron 37.Te1-e3, cubriendo la amenaza sobre f2 a la vez que situaban la torre en posición en la tercera fila, originando la posición del diagrama. ¿Cómo cabe valorar la posición ahora?
A) Las blancas ganan: su rey está a salvo y no hay nada contra las amenazas 38.d6 y Dh8+;
B) las negras pueden lanzar un contragolpe inmediato;
C) las negras logran ventaja combinando también ataque y defensa.
Tiene la solución aquí, pero antes de mirarla le sugerimos que reflexione sobre el problema

¿Cómo cabe valorar la posición tras 37.Te1-e3 ahora?
A) Las blancas ganan: su rey está a salvo y no hay nada contra las amenazas 38.d6 y Dh8+;
B) las negras pueden lanzar un contragolpe inmediato;
C) las negras logran ventaja combinando también ataque y defensa.

Solución

Enlaces:

• Todos los problemas de ajedrez de 2010...

Your judgement, please - Pt. 82

Retirado do site Chessbase.com.

To exchange or not to exchange?
09.07.2010 – In endgames, a further reduction in material is always a critical decision. In our position, Black was offered with 60...Kxg2 61.Kxe3 Rxb5 62.axb5 f1Q 63.Rxf1 Kxf1 the option of a liquidation to a pawn ending, which would leave him with a protected passed pawn on a5.

What do you think? Should he choose that liquidation or should he rather go for 60...Rc3 and the ending with rooks and bishops of opposite colours?
Analysis by GM Karsten Müller on ChessBase Magazine Online.

Lalith-Piasetski, Hilversum 2010

In endgames, a further reduction in material is always a critical decision. In our position, Black was offered with 60...Kxg2 61.Kxe3 Rxb5 62.axb5 f1Q 63.Rxf1 Kxf1 the option of a liquidation to a pawn ending, which would leave him with a protected passed pawn on a5.
What do you think? Should he choose that liquidation or should he rather go for 60...Rc3 and the ending with rooks and bishops of opposite colours?

Analysis Lalith-Piasetski by GM Karsten Müller.

Your judgement, please - Pt. 81

Retirado do site Chessbase.com.

With a knight on f5...
05.07.2010 – ... the game often wins itself, as you can read in many text books on the attack. Just optically this piece always looks menacing, and here even a colleague is at the ready on g3. How do you judge the situation?
A) Black has too many pieces on the kingside, there can't be anything for White;
B) the first player gets a crushing attack, however, a clever preparation move is needed first;
C) she can strike right away.
The solution is here, but first ponder over it with a larger version of the diagram.

'With a knight on f5 the game often wins itself', is said in many text books on attack. Just optically this piece always looks menacing, and here even a colleague is at the ready on g3. How do you judge the situation?

A) Black has too many pieces on the kingside, there can't be anything for White;
B) the first player gets a crushing attack, however, a clever preparation move is needed first;
C) she can strike right away.

Solution

Your judgement, please - Pt. 80

Retirado do site Chessbase.com.

The struggle against the blockading pieces
18.06.2010 – 154 moves had already been played in the game Aronian-Dominguez, when Aronian carried out a brilliant idea in the form of 155.Qb6+!. The intention is, after the forced exchange of the blockading queen with 155...Qxb6 156.Bxb6 and the bishop sacrifice Kxb6, to support the advance of the white passed pawn duo with 157.Kh5. So far, so good.
But what does White play if Black does not take the bishop but sets up a new blockader in front of the passed pawns with 156...Bg6? GM Karsten Müller has analysed the ending for ChessBase Magazine Online.

Aronian-Dominguez, Leon 2010

In this position Aronian played 155.Qb6+! Qxb6 156.Bxb6, in order, after Kxb6, to support the advance of the white passed pawns with 157.Kh5.



But what had Aronian planned if Black had refused the bishop sacrificed and brought in a new blockader for the white pawns by 156...Bg6?

Analysis Aronian-Dominguez by GM Karsten Müller.

Your judgement, please - Pt. 79

Retirado do site Chessbase.com.

No things by halves...
20.06.2010 – ... but a whole piece White had already invested into his attack in this game. How would you assess the position after the greedy capture 24...Rxb2?

A) Black wins;
B) White checkmates;
C) there is dynamic equilibrium.

The solution is here, but first ponder over it with a larger version of the diagram.

How would you assess the position after the greedy capture 24...Rxb2?

A) Black wins;
B) White checkmates;
C) there is dynamic equilibrium.

Solution

Your judgement, please - Pt. 78

Retirado do site Chessbase.com.

Two queens versus one...
25.06.2010 – ... was not saying too much in this game from this year's Polish Championship, since after all the greatest good in chess remains the king. What is your verdict on the sequence 46.Qf8+ Kh5 47.d8Q in this position?
A) win for White;
B) win for Black;
C) draw.

The solution is here, but first ponder over it with a larger version of the diagram.

What is your verdict on the sequence 46.Qf8+ Kh5 47.d8Q in this position?
A) win for White;
B) win for Black;
C) draw.

Solution

Calendário de eventos enxadrísticos - Julho/2010

Retirado do site ClubedeXadrez.com.br.

Atualizado em 02/07 às 23h10 - Boa noite, Joaquim de Deus Filho! - etapa da paulista Barrinha do Circuito Aberto do Brasil é o destaque do fim de semana, que terá também o Memorial Rodolpho Fares, no paulistano Esporte Clube Sírio - laboriosa Galeria Borba Gato anuncia sua programação julhina - "O Estado de São Paulo" está sob censura há alaranjados 336 dias, acompanhado do "Diário do Grande ABC", de Santo André (SP) além de outros 116 veículos de comunicação pelo Brasil - e a Copa continua...

2 a 4: Etapa de Barrinha do Circuito Aberto do Brasil/IRT Memorial Walter Merli - vaga na Semifinal do Brasileiro - premiação: R$4.500,00 ($1.000,00 ao campeão) - SP - em andamento

3 a 4: Regional Sul Escolar -Curitiba

3: Competições de xadrez dos Jogos Municipais da Meia-idade e da Pessoa Idosa - acima de 50 anos - inscrições gratuitas até 21/6, enviando e-mail com nome e data de nascimento para ricardocriez@hotmail.com - São Bernardo do Campo - SP

4: Memorial Rodolpho Fares Junior/Etapa do Circuito Paulista Dinâmico - premiação: R$500,00 ($180,00 ao campeão) - São Paulo

8 a 11: Regional Pernambucano - Petrolina

9 a 11: Campeonato Brasileiro de Seniors - vaga no Mundial de Arco (Itália) - premiação: R$2.000,00 ($800,00 ao campeão) - Canoas - RS

9: 5º Aberto "Revolução de 1932"/6ª etapa do 5º Circuito dos Feriados GXBG - PREMIAÇÃO: R$300,00 ($100,00 ao campeão) - São Paulo

10 e 11: 4º Aberto de Taiobeiras - premiação: R$1.900,00 ($300,00 ao campeão e ao destaque feminino) - MG

10: Etapa classificatoria do Campeonato Absoluto Triangulo, Alto Paranaíba e Noroeste de Minas Pensado. 15 vagas para a Semifinal e vagas para a Final Feminino. Premiação: $300,00 ($100,00 ao campeão) - Campos Altos

10: 4ª etapa do 12° Circuito Catarinense de Rápidas - categorias Superior e Especial - premiação na Superior: R$1.500,00 - Santo Amaro da Imperatriz

13 a 22: 3ª semifinal do 50o Campeonato Brasiliense Absoluto

17 e 24: 8º Aberto de Inverno GXBG - São Paulo

17 a 25: IRT Campeonato Fluminense de Mestres - Rio de Janeiro

18: 60º Memorial Júlio Guerra/etapa do Circuito Solidário GXBG/Casa Amarela de Santo Amaro - São Paulo - inscrições mediante a doação de 1 kg de alimento não-perecível em prol da Casa do Menor de Santo Amaro - São Paulo

22 a 25: Campeonato Brasileiro Amador - para jogadores com rating Fide até 2100 ou CBX até 2000 - vaga na Semifinal do Campeonato Brasileiro e no Mundial Amador - Curitiba

24 e 25: 3º IRT Taça Cidade de Imperatriz - premiação: R$800,00 ($300,00 ao campeão) - MA

24 e 25: Torneio do Sesc Tupinambás - premiação: R$650,00 ($200,00 ao campeão) - Belo Horizonte

30 a 8/8: IRT Mogiano (fechado) - Ribeirão Preto - SP

30 a 1/8: Zonal Bahia/Sergipe - 4 vagas (sim, quatro) na Semifinal do Campeonato Brasileiro Absoluto, com ajuda de custo de R$800,00 a cada classificado - Salvador

Your judgement, please - Pt. 77

Retirado do site Chessbase.com.

Magnus' mighty rooks
03.07.2010 – In the Kings Tournament Magnus Carlsen was once more very convincing, winning majestically with a lead of two points. The position Carlsen- Radjabov is taken from their seventh round game. In this ending, Black, whose move it is, has to be very careful about the safety of his king, because Carlsen's rooks occupy threatening posts. At the same time the final black pawn is under attack and the question is whether it should be defended with 45...Rg4 or 45...Ra2. Which of these two moves would you recommend Black to play? Analysis by GM Karsten Müller on ChessBase Magazine Online.

Carlsen-Radjabov, Bazna 2010

How should Black defend the a-pawn, 45...Rg4 or 45...Ra2?

Analysis Carlsen-Radjabov by GM Karsten Müller.