Chess: Understanding the Sicilian Defense (Sveshnikov Variation) Part I
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e5
6 Ndb5 d6 7 Bg5 a6 8 Na3 b5 9 Bxf6 gxf6
10 Nd5 f5 11 exf5 Bxf5 Line
Also available:
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part II
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicilian-defense.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part III
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicilian-defense_03.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part IV
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicili_115733177926001119.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part V
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicili_115733582743993846.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part VI
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicilian-defense_04.html
Variation A
1 e4
Controls d5 and f5 plus opens up diagonals for
the Queen and bishop.
1 ... c5
Takes charge of d4/b4 and makes the a5-d8 diagonal
available to the Queen.
2 Nf3
Preparation for 3 d4. White wants to challenge
Black's hold on that square.
2 ... Nc6
Mobilization towards the contentious d4 square.
The knight also eyes e5 and b4.
3 d4
White wants in on d4. He also liberates the c1 bishop.
3 ... cxd4
Black now has the half open c-file at his
disposal and a center pawn majority.
4 Nxd4
And White gets a centralized knight,
the half open d-file, and an edge in space.
Please observe how from d4 the knight
attacks 4 squares (b5, c6, e6 and f5) within
enemy territory whereas from f3 it assails
only two (e5 and g5).
4 ... Nf6
Development with attack.
5 Nc3
Securing the e4 pawn from 5 ... Nxe4.
5 ... e5
This move initiates the Sveshnikov Variation
of the Sicilian Defense. Black displaces the
knight from the empowering d4 square.
He also frees his f8 bishop.
6 Ndb5
Evading capture and threatening 7 Nd6+.
6 Nf5
6 Nde2
6 Nb3
6 Nf3
6 Nxc6
6 ... d6
Occupying the knight's intended destination square.
6 ... h6
6 ... Bc5
6 ... Bb4
6 ... a6
7 Bg5
Since d5 has been weakened by 5 ... e5,
White now turns his attention to acquiring it.
As an initial step, he nullifies the knight's d5
influence by pinning it to the Queen.
7 Nd5
7 a4
7 Be3
7 Na3
7 Be2
7 ... a6
Attacking the errant knight.
7 ... Be6
7 ... Be7
8 Na3
An unsightly retreat, but, the knight can
always come back into the game (Na3-c2-e3)
to assist White's d5 invasion.
8 Bxf6
8 ... b5
Gaining queenside space and threatening to fork the
a3 and c3 knights (9 ... b4).
8 ... Be6
8 ... d5
8 ... Nd4
8 ... Be7
9 Bxf6
A two-fold maneuver:
(i) Eliminates entirely the knight's d5 influence.
(ii) Compromises Black's pawn structure.
9 Nd5
9 Nab1
9 ... gxf6
9 ... Qxf6 exposes the Queen to unnecessary
harassment after 10 Nd5. The Queen is too
valuable a piece to expose to the attack of
lesser forces!
9 ... Qxf6
10 Nd5
As per plan!
10 Nab1
10 Naxb5
10 ... f5
(i) Attacking the e4 pawn and thus undermining d5.
(ii) Opening up the d8-h4 diagonal for the Queen.
10 ... Bg7
10 ... Be6
10 ... Be7
10 ... Bd7
11 exf5
11 Bd3
11 c3
11 Bxb5
11 g3
11 Nxb5
11 Qd3
11 Qh5
11 g4
11 c4
11 ... Bxf5
11 ... b4
11 ... Nd4
12 c3
d4 and b4 come into the pawn's view and the a3 knight
is given a retreat square on c2. Black has a considerable
advantage after 12 Qf3 Nd4 13 Nc7+ Qxc7 14 Qxa8+ Ke7
15 c3 b4! 16 cxb Bh6!; 12 Bd3 e4! 13 Qe2 Nd4 14 Qe3 Bg7,
with a small advantage for Black.
12 Bd3
12 Qf3
12 ... Bg7
Hoping to see some action along a1-h8 and f8-h6.
[12 ... Be6 13 Nc2 Bh6!? 14 a4 (14 g3!?) 14 ... 0-0!,
with complications or equality]
12 ... Be6
12 ... Be4
13 Nc2
13 Be2
13 Qf3
13 Bd3
13 Ne3
13 ... 0-0
13 ... Be6
13 ... Ne7
14 Nce3
And the knight is back into the swing of things!
Not only does it attack the f5 bishop, but it
also supports its d5 counterpart.
14 a4
14 Be2
14 Bd3
14 Be2
14 ... Be6
Black is worse off after 14 ... Bg6 15 h4 h6 16 g4.
Following 14 ... Be4, White attains a minimal
advantage via 15 Bd3.
14 ... Bg6
14 ... Bd7
14 ... Be4
14 ... Be6
15 Bd3
Taking aim at Black's kingside.
15 g4
15 g3
15 Qh5
15 Be2
15 ... f5
Preparation for 16 ... e4. The idea is to limit the
d3 bishop's scope.
[15 ... Ne7 16 Nxe7+ Qxe7 17 Qh5 h6 18 Be4 Rac8
19 0-0]
15 ... Ne7
15 ... Ra7
16 Qh5
Pressurizing Black's kingside.
16 O-O
16 Bc2
16 a4
16 ... e4
[ 16 ... Ra7 intending Raf7]
16 ... Qd7
16 ... Ra7
16 ... b4
16 ... Qc8
17 Bc2
17 Bb1
17 ... Ne7
The knight attacks d5 a second time and also poises
itself for kingside relocation.
[17 ... Be5 18 g4; 17 ... Ne5 18 Nf4]
17 ... Kh8
17 ... Ne5
17 ... Qd7
17 ... Bxd5
17 ... Be5
18 Rd1
Protecting d5 and assuming control of the half open
d-file.
[18 Bb3 Kh8 19 Nf4; 18 Nf4 Bf7 19 Bb3 d5 20 Qg5]
18 Nf4
18 Bb3
18 O-O-O
18 Nxe7+
18 ... Ng6
18 ... b4
18 ... Rc8
19 g4
19 f4
19 ... Nh4
19 ... fxg4
19 ... Bxd5
20 gxf5
20 ... Bxf5
20 ... Bxd5
21 Nxf5
21 Nf4
21 Kd2
21 ... Rxf5
22 Qg4
22 Qe2
22 ... h5
23 Qh3
23 Qg3
23 ... Qg5
23 ... Nf3+
24 Ne3
24 Qg3
24 ... Re5
24 ... Rf4
24 ... Rf6
24 ... Nf3+
Variation B
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e5
6 Ndb5 d6 7 Bg5 a6 8 Na3 b5 9 Bxf6 gxf6 10 Nd5
10 ... f5 11 exf5 Bxf5 12 c3 Bg7 13 Nc2:
13 ... Ne7
13 ... O-O
13 ... Be6
14 Nce3
14 Bd3
14 Nxe7
[ 14 Nxe7 Bxc2 15 Qxc2 Qxe7 16 a4 0-0]
14 ... Be6
14 ... Be4
15 g3
White wants to fianchetto the f1 bishop in order to
strengthen the d5 outpost and also keep an eye on
the h1-a8 diagonal.
15 Nxe7
15 a4
15 Be2
15 g4
15 Qf3
15 ... Nxd5
[15 ... 0-0 16 Bg2 Ra7 17 0-0 Nxd5 18 Bxd5!]
15 ... O-O
15 ... Rc8
16 Nxd5
16 ... 0-0
16 ... f5
17 Bg2
17 a4
17 Qd2
17 ... a5
Gaining queenside space.
17 ... f5
17 ... Rb8
17 ... Kh8
17 ... Rc8
18 0-0
18 Qe2
18 Qd2
18 ... Rb8
Avoiding potential contact with the g2 bishop
and facilitating ... b5-b4.
18 ... f5
19 Qe2
Her ladyship makes room on d1 for the a1 rook.
19 Qh5
19 Qd2
19 Ne3
19 Re1
19 ... Qd7
Black wants to pressurize d5 further by transferring
the Queen to f7.
19 ... f5
19 ... b4
20 Rad1
20 Rfe1
20 ... f5
Making room for the Queen on f7 and attacking e4/g4.
20 ... Kh8
21 f4
White needs to hold some ground in the center
otherwise Black will rule that sector. This move
also impedes ... f5-f4.
21 Qe3
21 Qh5
21 a3
21 h3
21 Rd2
21 ... Qf7
21 ... Kh8
21 ... e4
21 ... b4
[21 ... Kh8 22 Kh1 e4 23 Rd2 Qf7 24 Rfd1 Rfc8 25 Bh3]
22 Rd2
It's time to double up on the half open d-file.
The idea is to consolidate d5.
22 Ne3
22 ... e4
Preventing the g2 bishop from covering d5 and
also assailing d3/f3.
22 ... Rfc8
23 Rfd1
Since d5 was attacked twice but protected only once,
White shields it a second time.
23 Ne3
23 ... Rfc8
Assuming control of the half open c-file in preparation
for some queenside action.
23 ... b4
23 ... Kh8
24 Bh3
24 Ne3
24 ... Rc5
24 ... b4
24 ... h6
25 Ne3
25 ... d5
25 ... Bf8
25 ... b4
26 g4
26 Nc2
26 ... fxg4
26 ... Qg6
26 ... Rd8
26 ... Qb7
27 Bxg4
By ChessCoach@care2.com
6 Ndb5 d6 7 Bg5 a6 8 Na3 b5 9 Bxf6 gxf6
10 Nd5 f5 11 exf5 Bxf5 Line
Also available:
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part II
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicilian-defense.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part III
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicilian-defense_03.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part IV
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicili_115733177926001119.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part V
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicili_115733582743993846.html
Chess: Understanding the Sicilian Defense
(Sveshnikov Variation) Part VI
http://chesscoach1950.blogspot.com/2006/09/chess-understanding-sicilian-defense_04.html
Variation A
1 e4
Controls d5 and f5 plus opens up diagonals for
the Queen and bishop.
1 ... c5
Takes charge of d4/b4 and makes the a5-d8 diagonal
available to the Queen.
2 Nf3
Preparation for 3 d4. White wants to challenge
Black's hold on that square.
2 ... Nc6
Mobilization towards the contentious d4 square.
The knight also eyes e5 and b4.
3 d4
White wants in on d4. He also liberates the c1 bishop.
3 ... cxd4
Black now has the half open c-file at his
disposal and a center pawn majority.
4 Nxd4
And White gets a centralized knight,
the half open d-file, and an edge in space.
Please observe how from d4 the knight
attacks 4 squares (b5, c6, e6 and f5) within
enemy territory whereas from f3 it assails
only two (e5 and g5).
4 ... Nf6
Development with attack.
5 Nc3
Securing the e4 pawn from 5 ... Nxe4.
5 ... e5
This move initiates the Sveshnikov Variation
of the Sicilian Defense. Black displaces the
knight from the empowering d4 square.
He also frees his f8 bishop.
6 Ndb5
Evading capture and threatening 7 Nd6+.
6 Nf5
6 Nde2
6 Nb3
6 Nf3
6 Nxc6
6 ... d6
Occupying the knight's intended destination square.
6 ... h6
6 ... Bc5
6 ... Bb4
6 ... a6
7 Bg5
Since d5 has been weakened by 5 ... e5,
White now turns his attention to acquiring it.
As an initial step, he nullifies the knight's d5
influence by pinning it to the Queen.
7 Nd5
7 a4
7 Be3
7 Na3
7 Be2
7 ... a6
Attacking the errant knight.
7 ... Be6
7 ... Be7
8 Na3
An unsightly retreat, but, the knight can
always come back into the game (Na3-c2-e3)
to assist White's d5 invasion.
8 Bxf6
8 ... b5
Gaining queenside space and threatening to fork the
a3 and c3 knights (9 ... b4).
8 ... Be6
8 ... d5
8 ... Nd4
8 ... Be7
9 Bxf6
A two-fold maneuver:
(i) Eliminates entirely the knight's d5 influence.
(ii) Compromises Black's pawn structure.
9 Nd5
9 Nab1
9 ... gxf6
9 ... Qxf6 exposes the Queen to unnecessary
harassment after 10 Nd5. The Queen is too
valuable a piece to expose to the attack of
lesser forces!
9 ... Qxf6
10 Nd5
As per plan!
10 Nab1
10 Naxb5
10 ... f5
(i) Attacking the e4 pawn and thus undermining d5.
(ii) Opening up the d8-h4 diagonal for the Queen.
10 ... Bg7
10 ... Be6
10 ... Be7
10 ... Bd7
11 exf5
11 Bd3
11 c3
11 Bxb5
11 g3
11 Nxb5
11 Qd3
11 Qh5
11 g4
11 c4
11 ... Bxf5
11 ... b4
11 ... Nd4
12 c3
d4 and b4 come into the pawn's view and the a3 knight
is given a retreat square on c2. Black has a considerable
advantage after 12 Qf3 Nd4 13 Nc7+ Qxc7 14 Qxa8+ Ke7
15 c3 b4! 16 cxb Bh6!; 12 Bd3 e4! 13 Qe2 Nd4 14 Qe3 Bg7,
with a small advantage for Black.
12 Bd3
12 Qf3
12 ... Bg7
Hoping to see some action along a1-h8 and f8-h6.
[12 ... Be6 13 Nc2 Bh6!? 14 a4 (14 g3!?) 14 ... 0-0!,
with complications or equality]
12 ... Be6
12 ... Be4
13 Nc2
13 Be2
13 Qf3
13 Bd3
13 Ne3
13 ... 0-0
13 ... Be6
13 ... Ne7
14 Nce3
And the knight is back into the swing of things!
Not only does it attack the f5 bishop, but it
also supports its d5 counterpart.
14 a4
14 Be2
14 Bd3
14 Be2
14 ... Be6
Black is worse off after 14 ... Bg6 15 h4 h6 16 g4.
Following 14 ... Be4, White attains a minimal
advantage via 15 Bd3.
14 ... Bg6
14 ... Bd7
14 ... Be4
14 ... Be6
15 Bd3
Taking aim at Black's kingside.
15 g4
15 g3
15 Qh5
15 Be2
15 ... f5
Preparation for 16 ... e4. The idea is to limit the
d3 bishop's scope.
[15 ... Ne7 16 Nxe7+ Qxe7 17 Qh5 h6 18 Be4 Rac8
19 0-0]
15 ... Ne7
15 ... Ra7
16 Qh5
Pressurizing Black's kingside.
16 O-O
16 Bc2
16 a4
16 ... e4
[ 16 ... Ra7 intending Raf7]
16 ... Qd7
16 ... Ra7
16 ... b4
16 ... Qc8
17 Bc2
17 Bb1
17 ... Ne7
The knight attacks d5 a second time and also poises
itself for kingside relocation.
[17 ... Be5 18 g4; 17 ... Ne5 18 Nf4]
17 ... Kh8
17 ... Ne5
17 ... Qd7
17 ... Bxd5
17 ... Be5
18 Rd1
Protecting d5 and assuming control of the half open
d-file.
[18 Bb3 Kh8 19 Nf4; 18 Nf4 Bf7 19 Bb3 d5 20 Qg5]
18 Nf4
18 Bb3
18 O-O-O
18 Nxe7+
18 ... Ng6
18 ... b4
18 ... Rc8
19 g4
19 f4
19 ... Nh4
19 ... fxg4
19 ... Bxd5
20 gxf5
20 ... Bxf5
20 ... Bxd5
21 Nxf5
21 Nf4
21 Kd2
21 ... Rxf5
22 Qg4
22 Qe2
22 ... h5
23 Qh3
23 Qg3
23 ... Qg5
23 ... Nf3+
24 Ne3
24 Qg3
24 ... Re5
24 ... Rf4
24 ... Rf6
24 ... Nf3+
Variation B
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e5
6 Ndb5 d6 7 Bg5 a6 8 Na3 b5 9 Bxf6 gxf6 10 Nd5
10 ... f5 11 exf5 Bxf5 12 c3 Bg7 13 Nc2:
13 ... Ne7
13 ... O-O
13 ... Be6
14 Nce3
14 Bd3
14 Nxe7
[ 14 Nxe7 Bxc2 15 Qxc2 Qxe7 16 a4 0-0]
14 ... Be6
14 ... Be4
15 g3
White wants to fianchetto the f1 bishop in order to
strengthen the d5 outpost and also keep an eye on
the h1-a8 diagonal.
15 Nxe7
15 a4
15 Be2
15 g4
15 Qf3
15 ... Nxd5
[15 ... 0-0 16 Bg2 Ra7 17 0-0 Nxd5 18 Bxd5!]
15 ... O-O
15 ... Rc8
16 Nxd5
16 ... 0-0
16 ... f5
17 Bg2
17 a4
17 Qd2
17 ... a5
Gaining queenside space.
17 ... f5
17 ... Rb8
17 ... Kh8
17 ... Rc8
18 0-0
18 Qe2
18 Qd2
18 ... Rb8
Avoiding potential contact with the g2 bishop
and facilitating ... b5-b4.
18 ... f5
19 Qe2
Her ladyship makes room on d1 for the a1 rook.
19 Qh5
19 Qd2
19 Ne3
19 Re1
19 ... Qd7
Black wants to pressurize d5 further by transferring
the Queen to f7.
19 ... f5
19 ... b4
20 Rad1
20 Rfe1
20 ... f5
Making room for the Queen on f7 and attacking e4/g4.
20 ... Kh8
21 f4
White needs to hold some ground in the center
otherwise Black will rule that sector. This move
also impedes ... f5-f4.
21 Qe3
21 Qh5
21 a3
21 h3
21 Rd2
21 ... Qf7
21 ... Kh8
21 ... e4
21 ... b4
[21 ... Kh8 22 Kh1 e4 23 Rd2 Qf7 24 Rfd1 Rfc8 25 Bh3]
22 Rd2
It's time to double up on the half open d-file.
The idea is to consolidate d5.
22 Ne3
22 ... e4
Preventing the g2 bishop from covering d5 and
also assailing d3/f3.
22 ... Rfc8
23 Rfd1
Since d5 was attacked twice but protected only once,
White shields it a second time.
23 Ne3
23 ... Rfc8
Assuming control of the half open c-file in preparation
for some queenside action.
23 ... b4
23 ... Kh8
24 Bh3
24 Ne3
24 ... Rc5
24 ... b4
24 ... h6
25 Ne3
25 ... d5
25 ... Bf8
25 ... b4
26 g4
26 Nc2
26 ... fxg4
26 ... Qg6
26 ... Rd8
26 ... Qb7
27 Bxg4
By ChessCoach@care2.com
posted by ChessCoach1977 at 5:58 PM
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