Chessopenings24-7 - ARTICLES Updted Till 29.11.2015, ScorpionChess.pdf

(5542 KB) Pobierz
ARTICLES
Updted Till 29/11/2015
Pdf Version
By ScorpionChess
FORWARD
All Credit to ilmarine and v3752
for providing the converted
material
Undoubtedly, without their
generous contribution this work
would not be possible and for this
we are all grateful
S.C
December 2015
CO24_Articles_Updated_29_11_2015
163
Vallejo's Wild Variation,Survey: Trusted
Reti Opening: King's Indian A,6...Nbd7!?
Line 026
[Dragan Paunovic]
A07
04.04.2015
Current Reputation: Playable for both sides During the seventh round of the
Aeroflot Open, multiple tweets signalled that Vallejo Pons was on a creative spree
against Khismatullin. However, the position was very complicated and the Russian
player eventually turned the tables and won. Still, the opening phase of the game
remains very interesting from the purely theoretical point of view, and we are thus
going to examine its objective value in today's article.
1.f3 d5 2.g3
f6
3.g2
f5
4.c4 e6 5.cxd5 exd5 6.b3
bd7!?
This move is an ambitious response
to White's usual setup. Players with sub-par tactical vision should think twice
before entering this line. [#]
7.d4
[Chapter] [#]
[
Other White's options are significantly less ambitious:
7.d4
[Chapter] [#]
b6
8.0-0 c6 9.f4
e7
10.c3 0-0 11.e5
Promising line for Black:
A)
11...d6
is also playable, but Black has to be careful:
12.a4
Suggested
improvement for Black:
A1)
12...c7
Suggested improvement for White:
A1a)
13.a5
A1a1)
Dangerous line for Black:
13...c4?!
(Key game A. Kostjukov - R.
Kasimdzhanov, Internet 2006) [#]
14.e4!
This move gives White the
advantage.
e6
15.exd5
The ensuing lines end favorably for White.
cxd5
( 15...xd5!? 16.xc4
xf4
17.gxf4
xf4
18.e4!
d5
19.f3
e2+
20.h1
xd4
21.d3
e6
22.c3
Black has insufficient
compensation for material deficit. White can increase his advantage with
accurate play.
)
16.b5
e7
17.a6 b6 18.xc4
xf4
19.e5
xe5
20.dxe5
e4
21.fd1
(weakness a7, d5) White has a promising
position.;
A1a2)
13...bd7 14.a6 bxa6 15.xd7
xd7
16.xd6
xd6
17.c2
fb8
18.e3
Black has a weak pawn structure.;
A1b)
13.fc1!?
Black has poor queen placement. White is exerting
queenside pressure.
a6 14.g5!
bd7
15.xd7
xd7
16.xf6 gxf6
17.e4 dxe4
[#]
18.e1!
This useful move gives White the advantage.
g7
19.xe4
Black has very weak pawn structure. White has a lasting
advantage.;
A2)
Updated on December 6, 2013
12...a5
(NirvanaChess 1.3 - Chronos 1.9.
9, Internet (blitz) 2013) [#] Suggested improvement for White:
13.xf7!
This move offers good practical chances for White.
xf7
14.xd6
xd6
15.xb6
Black has insufficient compensation for material deficit.;
A3)
12...h5!
This move leads to approximately equal positions.
13.a5
( 13.c1 a5 14.e4 dxe4 15.xe4
e6
16.d1
f6=
With simple and
1
CO24_Articles_Updated_29_11_2015
comfortable play - there is little in the ensuing lines to trip Black up.
)
13...xf4 14.gxf4
c4
The position is objectively equal, but precise play is
required from both sides.
A3a)
15.xc4 dxc4 16.xb7
xf4
17.e3
( 17.xc6
h4
18.h3
ab8
19.f3
e6=
White has difficulties making any progress. Black has
sufficient compensation for material deficit.
)
17...c7 18.xc6
d3
19.fc1
c8
20.d5
h4
21.h3
fd8
22.f3
b8=
Black has a pair of
bishops. Black has sufficient compensation for material deficit.;
A3b)
15.xb7
xa5
16.a6
b3
17.xc6
h4
18.xd5
xa1
19.xa1
ae8
20.e3
e6
21.xa7
e4
22.xe4
xe4
White has a
poorly-protected king.
23.e5
xe5
24.dxe5
g4+
25.f1
xe5
26.fxe5
c4+
27.e1
( 27.g2
This move leads to perpetual check.
g4+
28.h1
f3+
29.g1
g4+=
)
27...xd5 28.a5
g2=
White has difficulties defending his pawns. Black has sufficient
compensation for material deficit.;
B)
11...e8!
This is the beginning of a typical plan which occurs in similar
positions.
12.ad1
d6
This line has been played until this point in another
grandmaster level game, too.
13.a4 a5 14.fe1
e6
15.d3
f5
16.e5
f6 17.e4! fxe5 18.exf5
xf5
19.xe5
h8=
Black can equalize with relative
ease. Key game A. Voyna - R. Chytilek, corr. 2003
]
[ 7.0-0
[Chapter] [#] This line reduces White's chances to play for a win.
c5
8.d1
( 8.e3+
e7
(A. Kochyev - M. Matlak, Moscow 1988; This line has
been played until this point in several games of moderate significance.)
9.d4
ce4
10.e5
[#]
h5!? 11.c3 c6=
with mutual play.
)
8...d6 9.d4
cd7
10.c3 c6 11.h4
e6
The position is objectively equal, but precise play is
required from White.
A)
Updated on June 9, 2014
12.f3 h6! 13.e4 g5 14.f5
xf5
15.exf5 0-0=
Black can equalize with relative ease. Key game Stockfish 070614 - Stockfish
070614, Internet (blitz) 2014;
B)
12.d3?!
White's choice hands over the advantage to Black.
0-0 13.f5
c7
Updated on May 31, 2014
14.f3
(Komodo 7a - Stockfish 5, Internet 2014)
(
Updated on October 1, 2013
14.g5 h6 15.f4
xf4
16.gxf4
(F. Malewicz -
W. Heyn, corr. 2013)
b6!
This is the beginning of a typical plan which occurs
in similar positions.
17.b3
c8
18.e3
e8
(with the idea Bxf5 Nd6) with
Black's characteristic advantage in this type of position.
)
14...e8 15.d1
c8
(with the idea c5);
C)
12.f4
b6
13.f5
d7
14.e4
( 14.g5
e7
15.d3 0-0 16.f3
(Key game W. Hug - A. Jussupow, Baden-Baden 1995)
g4!
17.c1
e8
18.h3
f6
19.g4
d6
20.g5 c5=
with mutual play.
)
14...dxe4 15.xe4
xe4
16.xe4
f6
17.f3 h6 18.b3 0-0-0 19.b2
b8=
The chances are
roughly equal, though better players should feel more comfortable. Key game
Y. Tyulenko - D. Prochazka, corr. 2012
]
Recommendation for advanced players (with international titles):
7...e4!?
2
CO24_Articles_Updated_29_11_2015
This line increases Black's chances to play for a win.
[
equivalent move is Recommendation for club level players:
7...g6 8.xb7
b8
9.a6
b6
10.a5
b4
( 10...c5 11.f3 c4
White has poor queen
placement.
12.0-0
b4
13.a4 0-0 14.d1
e8=
White is behind in
development. Black has sufficient compensation for material deficit.
)
11.a4 0-0
12.0-0
c8
13.d3
e8
14.d1
(Key game Booot 5.1.0 - Hannibal 1.1, Internet
2011)
h5=
(weakness e2) Black has sufficient compensation for material
deficit. Best Mutual Play
]
8.xe4
[#]
c5!
This is a dangerous move with good practical chances for Black.
9.b5+ c6 10.xc6 bxc6 11.xc6+
cd7
The position is objectively equal,
but precise play is required from White.
12.c2
c8
13.a4
c4
14.b3
[
Dangerous line for White:
14.b4?
Paco's pressure paid off, and his opponent
made a serious mistake.
c7
15.b3
Suggested improvement for Black:
A)
Updated on April 2, 2015
15...xc2?!
In the game Spanish No. 1 almost
immediately returned the favor, and his error restored the balance.
16.c3
xc3
( 16...xc1+ 17.xc1 d4 18.0-0 dxc3 19.xc3
b7
20.fc1
e7
21.c8+
d8
22.e3+
e4
[#]
23.a8!
xe3
24.dxe3=
The position is
objectively equal, but very difficult to play for both sides.
)
17.xc3
b7
18.0-0
(Key game D. Khismatullin - F. Vallejo Pons, Moscow 2015)
e7
19.b2 0-0=
The chances are roughly equal, though better players should feel more
comfortable.;
B)
15...xb4!
This move thwarts White's plans.
16.e3+
d8
White has
difficulties defending his pieces.
17.a3
( 17.c3 d4 18.d3
e5
19.f5
dxc3 20.0-0
e7
21.d1 g6 22.h3
d4
White has insufficient
compensation for material deficit. Black can increase his advantage with
accurate play.
)
17...c5 18.c3 d4 19.f3
e5
20.g2
[#]
d3! 21.f4
e8!
White's king is stuck in the center.
22.fxe5
xe5
23.b1
xe2+
24.xe2
xe2+
25.d1 dxc2+ 26.xc2
a4
White has poor piece coordination.
Black has an overwhelming advantage.
]
14...c8 15.0-0!
This move leads to approximately equal positions.
[
Dangerous line for White:
15.c3?! d4 16.0-0 dxc3 17.dxc3
e7
18.f5
0-0
White has insufficient compensation for material deficit.
]
15...xc2 16.c3
xc3
17.bxc3 h5!? 18.b1
b6=
with mutual play. Best
Mutual Play; Vallejo's imaginative opening play makes a strong impression, and it
appears that it is now White that has to pay attention not to slip in this line.
3

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin