Chess Evolution 139, 24th of October 2014.pdf

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Editorial Preface
Table of Contents
Editorial Preface
best games of the past week
Puzzle section
Endgame section
Clash of the Titans
Surprise section / study
Solutions
The Corsican rapid was won by Hou Yifan! Finally the nd best
woman player in the history of chess (a er Judit Polgar) can
match with the men on the highest level. A very big surprise
was the loss of Anand to Fedorchuk in the semi-finals, where
Hou Yifan only qualified in the Armageddon game against
Robert Ruck from Hungary. In the final Hou Yifan won very
convincingly against Fedorchuk with a : score.
Now to main current event, the nd FIDE Grand Prix in
Tashkent:
Vachier-Lagrave is leading with . / . A nice win over
Caruana, a nice win over Kasimdzhanov and a solid draw
against Radjabov sounds like a fantastic start!
It seems like Caruana is lacking his usual rock solid stamina,
as the World Nr blundered quite a lot lately and also missed
great winning chances, so his / doesn’t come as a surprise.
I guess a er a few weeks’ break we would see Caruana back
in top shape, but it is just the rd round of the Grand PrixĚ
Mamedyarov had a rather unlucky start as he lost a winning
rook endgame to Andreikin, but he quickly recovered with his
win over Gelfand and is now on . / .
Another very interesting player is Jobava, who continues
playing his extraordinary openings. We will see how far he
can go with them on the highest chess level during the next
games, but at the moment he is also on . / .
A lot of open tournaments are also going on:
The very strong Chigorin Memorial in St.Petersburg is under
way with a lot of GMs from
-
participating in it.
The European Youth Championship in Batumi is another
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interesting event.
The traditional Cap d’Agde open and rapid event is taking
place this week as well.
The American Continental as well as the Spice Cup are the
other top events which deserve attention.
This week we analyse the best games from the German
Bundesliga as well as the games from the Grand Prix in
Tashkent for you. Enjoy!
Arkadij Naiditsch & Csaba Balogh
PS: Your weekly commentator Arkadij Naiditsch got married
to a wonderful girl on the rd October! :)
best games of the past week
( ) Karjakin, Sergey(
- Jakovenko, Dmitry(
Tashkent FIDE GP
. .
)
) [A
( . ),
]
GM Csaba Balogh
Best rating:
Jakovenko is known as a great theoretician and a huge
specialist of the Berlin defence. Karjakin decided to drive the
game to less explored areas.
.Nf
Nf
.g
The Reti opening is becoming more and more
popular nowadays.
...d .Bg c .O-O g .d cxd .Nxd
Bg
Suddenly
the game has transposed to the g system of the Gruenfeld
defence with reversed colors, therefore White enjoys an extra
tempo compared to those lines.
.Nb !
Jakovenko admitted that he missed this move in his
preparation. From one side, it is understandable, since it
looks illogical to run away from the center with the knight,
especially since it was not even under attack. On the other
hand, this is the main idea also with reversed colors. White
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wants to put quick pressure on the center (in the spirit of the
Gruenfeld) with Nc and e .
...O-O .Nc e .e !
Very well played! White makes use
of his extra pawn and opens the diagonal of his bishop. In
the normal line with the reversed colors the knight is already
developed to c and Black could answer with d ! But it is
impossible now, so he must open the position.
...dxe
.Nxe
Nxe
.a ! and Black has only created weaknesses for himself.
White plays Be -b next.; Black cannot connect his rooks with
...Bd as it always runs into .Nc !]
.Be f
Jakovenko tries to defend actively. [Another
attempt was ...Bf trading the strong bishop. But of course
it damages the pawn structure and Black cannot hope for full
equality a er .Bxf gxf
.Rfd += In the long term, White
will use his pawn majority on the queenside, while Black will
be unable to do the same on the kingside due to the doubled
pawns.]
.Bg
Bf
Black intends to develop his bishop to e and
prevents the Nc idea. [A logical move would have been
...e closing the diagonal, but unfortunately from Black’s
point of view it does not reach its aim, because White
activates his bishop again with .f ! exf .Bxf += and Black
did not win anything on the business.]
.Qxd !
Karjakin evaluates the consequences deeply. He
understands that the trade of the queens favors him even if it
brings the rook to the opened file with tempo. [On .Bxe
Black could play ...Qc ! and he could easily solve the
development of the c bishop with Nc , b and Bb , because
the queen on c perfectly holds the position together. Bf
could always be met bye !]
...Rxd
.Bxe
Nc
.c !
This is the di erence between
the two bishops on the long diagonal. White could easily
neutralize the pressure on the b pawn and he is ready to
develop the one on c to e followed by bringing his rook to
d , while Black’s task is much harder...
...e
Trying to develop the c bishop. [ ...a with the idea
to push a -a , weakening the queenside and give a target
for the g bishop on c , but White answers with the simple
.Rfe !
Another deep move by Karjakin. Putting pressure on
the e pawn creates more problems for Black than occupying
the open file. [On .Rfd Jakovenko wanted to play ...Be
.Nc
Bxc
.Bxc White has gained the two bishops, but
...e closes the one on g . Black wants to activate his knight
with Ne -d and the logical undermining playwith .f is
now met by ...Rxd + .Rxd exf .Bxf
Bxa
The tactical
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justification is that White cannot pentetrate with his rook on
the th rank, because of .Rd
Ne
!]
...Be !
A clever decisi on by Jakovenko. He rather
sacrifices a pawn for active counterplay than su ering
passively.
.Bg
Karjakin grabs the material.
...Re
.Bxc bxc
.Rxe
the two bishops with c . The rook cannot invade on e , since
it will be sent back a er Kf !
...a
Jakovenko conti nues with his very natural human
moves. He advances his pawn to a to reduce the movement
of the white pawns. If White plays a himself it is not the same
story as in the ... a line because then White will be unable
to create a passed pawn with b because of the strong bishop
on g . Black would transfer his rook to e -b .
.c
Bf
.Rb a
.b axb
.axb
This trade was
a small achievement for both sides. White has finally freed
his pieces, he can use his knight and rook as they are not
obliged to protect the pawns anymore, but of course it is
still extremely di icult to make progress, as the bishops are
keeping their eyes on the pawns. Black also had a positional
benefit, he had pawn islands before on the queenside and
he managed to get rid of one of them.
...Bd !
Black doesn’t have anything concrete, just
positional compensation! Black has the two bishops, he
is intending to swap all the rooks o the board and then
White could hardly avoid reaching an opposite colored bishop
endgame, where Black should be able to hold with a pawn
down. This kind of compensation is known from the Marschall
and the biggest experts like Aronian and Leko usually hold
such endgames without too much di iculties.
.Bf
Bg
!
Forcing White to give up the e-file. [On
...Rxe
.Bxe
Re
.f ! was Karjakin’s point and the
bishop stands perfectly on e . It closes both files of the black
rook (controls the b square too) and trading it with Bg
should never come into consideration as Black should pin his
compensation to the two bishops.]
.Rxe +
Rxe
.Nd !
White wants to reduce the power of
...h
.h
Re
?!
Jakovenko has defended perfectly so far,
but he starts to lose the track now. He drives his rook to the
b-file, but it is a bit slow now since it allows White to create a
passed pawn. [It was better to play ...Rd driving the rook
to the very active place on d ! .b is now met by ...Bc
.Nf
Bxc
.Bxh The trade of these two pawns clearly
easens Black’s defensive task. White will be unable to make
progress now. Black can play any waiting move, for instance
...Rd
.Ne
Bb
= and Black is safe.]
.b
Bc
?
This seems to be the decisive mistake. [The draw
should still have been secured a er ...Rb ! Black is now
threatening Bc and the di erence is that a er .b cxb
.cxb he could use his two bishops to send away the white
rook from the support of the passed pawn. ...Ba ! .Rb
Bc
! .Ra
Bd
winning the b-pawn. The vs a er Bxh
should already be a very easy draw.]
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