By G.M.Peake
[ECO "B23"]
1.
e4
...
c5;
2.
Nc3 {Many white players wishing to avoid the sharp, open lines of the various
variations of the Sicilian play the closed variation. Other White players just
prefer to play the closed typed positions that occur, rather than an open game.
- almost King's Indian Attack style.}
Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6
{Now
Black must be prepared to face the various formations / set ups and ideas for
white.}
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A. 6 Nd5 {Seems premature as black can kick the
knight with e6, but white wants to regroup to e3.} e6 7 Ne3 Nge7 8 f4 O-O 9 Nf3
Nd4 10 Nh4 e5 11 fxe5 dxe5 12 c3 Ndc6 13 O-O Be6 14 Nhf5 Qd7 15 Nxg7 Kxg7 16 Qd2 f6 17 c4 Qd4 18 Kh1 Nb4 19 Nd5
Bxd5 20 Qh6+ {is unclear {Jovic-Szalanczy, Dortmund 1989})} )
B. ( 6 Nh3 {Developing without blocking the f-pawn ,
and may be able to go f4, d5 later.} h5 {An aggressive move played by Kasparov}
7 Nd5 Bg4 8 f3 Bxh3 9 Bxh3 e6 10 Ne3 h4
!""""""""#
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11 f4 hxg3 12 hxg3 d5 13 exd5 exd5 14 Bg2 Rxh1+ 15
Bxh1 Nf6 16 Bd2 Qe7 17 Kf2 O-O-O 18 Qf1 c4 19 Bf3 cxd3 20 cxd3 Ne4+ {Black has
the advantage, {Hug-Kasparov, Switzerland-Kasparov 1987} )
C. ( 6 Nge2 {Nge2 was the old main line.} Rb8
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( 7 a4 a6 8 O-O b5 9 axb5 axb5 10 f4 Bd7 11 f5 Nf6
12 Nf4 O-O 13 g4 b4 14 Ncd5 Nxd5 15 Nxd5 e6 16 Ne3 Qh4 17 Rf3 Ra8 18 Rb1 Nd4 19
Rh3 Qe7 20 Qf1 Ra2 {with advantage to Black {Georgadze-Ruban, Tbilisi 1989})} )
( 7 O-O b5
( 8 f4 b4
9 Nd5 e6 10 Ne3 Nge7 {equal
prospects {analysis}} )
9 e5 Nxe5 {Good move !} 10 fxe5
bxc3 11 bxc3 Bxe5 12 d4 cxd4 13 cxd4 Bg7 {Black has the extra pawn. analysis}})
)
( 8 a3 Bd7 9 f4 f5 10 Kh1 Nf6 11 b4 cxb4 12 axb4 Qb6
13 Rb1 e6 14 Bd2 O-O 15 Qc1 Kh8 16 Be3 Qc7 17 Qd2 Rfc8 18 Rfc1 a5 19 bxa5 Nxa5
20 exf5 gxf5 {Black stands well. {Fries-Groszpeter, Kobenhavn 1989}} ) ) )
D. ( 6 Nf3 {Blocks the
f-pawn, but a good developing move. In some lines white plays Nh4 and f4-f5,
which is the main idea.} Nf6 {Completing the king side development seems best
in this line.} 7 O-O O-O
( 8 Nh4 Rb8 9 f4 Bd7 10 a4
a6 11 f5 e6 {e6 is the most solid, b5 12. ab ab 13. Bg5 b4 14. Nd5 white has
some attacking prospects.} 12 Bg5 Nd4 {putting pressure on f5.} 13 fxg6 fxg6 14
Ne2 Qb6
!""""""""#
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( 15 Nxd4 cxd4 16 b3 Qc5 17
Qd2 Rbc8 18 Rac1 Ng4 {Black has the better game. {analysis}} )
( 15 c3 { is risky as black
has ...} Nb3 16 Ra3 c4+
( 17 Kh1 Nc5 {{analysis}} )
( 17 d4 Qa5 {{analysis}} ) ) )
( 8 h3 {preventing Ng4 , Bg4 etc However every pawn move weakens the
position !} Rb8
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( 9 Be3 b5 10 Qd2 b4 11 Ne2 Nd7 12 Rab1 Qa5
13 Nc1 Ba6 14 Bh6 c4 15 Bxg7 Kxg7 16 dxc4 Bxc4 17 Rd1 Rfc8 18 Nh2 Be6 19 b3 Rb5
20 Nf1 Nf6 {Black has a moderate advantage {Lazic-Huzman, Beograd 1988})} )
( 9 a4 {a4 doesn't actually stop the q-side
expansion,( black a6) It's a question of whether white wants to open the
a-file.} a6 {Another point about a4 is that it weakens b3, and white has to be
careful of Nb3 (from d4) if he moves the c pawn later.} 10 Be3 b5 11 axb5 axb5
12 Qd2 Re8 13 Bh6 Bh8 14 Nh2 b4 15 Nd1 Bb7 16 Ne3 Ra8 17 Rab1 Ra2 {Now perhaps
white wishes he hadn't opened the a-file.} 18 f4 Nd7 19 b3 Nd4 20 Nhg4 f5
{Black has a slight advantage {Hug-Fedorowicz, Novi Sad (ol) 1990})} )
( 9 Nh4 e5 {e5 is an excellent move in this
position as it prevents f4}
( 10 f4 Nh5 {White has
problems as both Nxg3 and exf are threatened. (analysis)} )
( 10 Be3 b5 11 Qd2 b4 12 Nd1
Nd4 13 Kh2 Nh5 14 c3 bxc3 15 bxc3 Ne6 16 Nf3 f5 17 exf5 gxf5 18 Bh6 f4 19 Bxg7
Nhxg7 20 c4 Ng5 {equal chances Popovic-Gligoric, Yugoslavia 1979})} ) ) ) )
E. ( 6 f4 Rb8 {Rb8 is one of
the more aggressive black defences.}
( 7 Be3 {transposes into 6, Be3 and 7. f4
line} )
( 7 Nf3 b5
( 8 Be3 {sacrifices (loses?) a pawn.} b4 9 Na4 Qa5 10 c3 bxc3
!""""""""#
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( 11 Nxc3 Rxb2 {Black is winning. {analysis}}
)
( 11 bxc3 Bd7
( 12 Rc1 Nd8 {Black is winning. {analysis}} )
( 12 Bd2 Nd8 {is winning. {analysis}} ) ) )
!""""""""#
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( 8 a3 Nf6 9 Be3 Ng4 10 Bc1
O-O 11 h3 Nf6 12 Be3 Bd7 13 O-O a5 14 e5 Nh5 15 exd6 Nxg3 16 dxe7 Qxe7 17 Re1
Be6 18 Ng5 Nd4 19 Nxe6 fxe6 20 Ne4 Nxe4 21 dxe4 e5 22 c3 exf4 23 Bxd4 cxd4 24
cxd4 f3 25 Bxf3 Qf6 {Black is winning. {analysis}} )
( 8 O-O b4
( 9 Nd5 e6 10 Ne3 Nge7 11 a3
a5 12 axb4 axb4 13 f5 exf5 14 exf5 Nxf5 15 Nxf5 Bxf5 16 Ng5 Ne5 17 Bd5 Qd7 18
c3 bxc3 19 bxc3 O-O {With advantage to Black. {analysis}} )
( 9 Ne2 Qb6
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$ Kr+qB R%
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( 10 Be3 Bxb2 11 Rb1 Bg7 12
d4 Nf6
( 13 d5 Ng4 14 Bc1 Nd4 {Black has the advantage.
{analysis}} )
( 13 e5 Ng4 14 Qd2 Nxe3 15 Qxe3 O-O 16 dxc5 Qxc5 17
Qxc5 dxc5 {White doesn't have enough for the pawn.} ) )
( 10 c3 bxc3 11 bxc3 Ba6 12
Be3 Nf6 13 h3 O-O 14 g4 Rb7 15 g5 Nd7 16 f5 Rfb8
( 17 Qd2 Qa5 {=+} )
( 17 d4 cxd4 18 cxd4 Nde5 {Black has good prospects.
{analysis}}) )
( 10 Nd2 Nf6 11 Nc4 Qc7 12
Be3 Be6 13 h3 Qd7 14 Kh2 Nxe4 15 Bxe4 d5 16 Bxd5 Qxd5 17 f5 Bxf5 18 Nf4 Qd7 19
Bxc5 Rb5 20 Be3 O-O 21 g4 e5 22 Nh5 Bxg4 23 Qxg4 Qxg4 24 hxg4 gxh5 25 gxh5 e4
26 h6 Rh5+ 27 Kg3 Bxh6 28 dxe4 Kh8 {Black has a good game. {analysis}} )
!""""""""#
$ Kr+qB R%
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( 10 Kh1 Nf6
( 11 Be3 O-O
( 12 c3 bxc3 13 bxc3 Ba6
( 14 Qc2 Qb2 {Black has pressure {analysis}} )
( 14 h3 Rb7 {Black has good prospects. {analysis}})
)
( 12 h3 Qc7 13 Qd2 d5
( 14 e5 Nd7 15 d4 Na5 {with good play. {analysis}} )
( 14 exd5 Nxd5 15 Bxc5 Bxb2 16 Rab1 Bg7 17 a3 Nc3
{with an equal game. {analysis}} ) ) )
( 11 Nd2 O-O 12 Nc4 Qc7 13 a3 a5 14 axb4 axb4 15 h3
Bb7 16 g4 Ra8 17 Rb1 d5 {Classic counter in the centre to a flank attack.}
( 18 exd5 Nd4 19 Ne3 Nxe2 20 Qxe2 Rfd8 {With an
equal game. {analysis}} )
( 18 e5 Nxg4 {Fireworks !} 19 Bxd5 Ncxe5 20 Bxb7
Qxb7+ 21 Kg1 Nxc4 {Black is winning. {analysis}} ) ) ) ) ) ) )
F.
( 6 Be3 Rb8
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( 7 a4 Nd4 8 Qc1 e6 9 Nd1 Ne7 10 Ra3 O-O 11 h4 h5 12
c3 Ndc6 13 f4 b6 14 Nf3 d5 15 Nf2 Ba6 16 Ng5 Rc8 17 Qd1 d4 18 Bc1 c4 19 g4 dxc3
20 bxc3 cxd3 {unclear {Barua-Prasad, Calcutta 1991})} )
( 7 f4 Nd4 8 Nf3 b5 9 Rb1 b4 10 Ne2 e5 11 c3 bxc3 12
bxc3 Rxb1 13 Qxb1 Nxe2 14 Kxe2 exf4 15 Bxf4 Ne7 16 Qb8 Qa5 17 Qxd6 Qxa2+ 18 Bd2
c4 19 d4 Bh6 20 Qe5 O-O {{Norwood-Benjamin, Toronto 1985})} )
( 7 Nge2 b5
8 a3 Nf6 9 h3 O-O 10 b4 Nd7 11 Rb1 cxb4 12 axb4 a5 13 bxa5 Qxa5 14 Bd2 b4 15
Nd5 e6 16 Ne3 Ba6 17 O-O Nc5 18 f4 Qb6 19 f5 b3 20 Kh2 Qd8 21 c4 b2 22 Ng4 h5
23 Nh6+ Kh7 24 Nxf7 Rxf7 25 fxg6+ Kxg6 26 Nf4+ Rxf4 27 gxf4 Qe8 28 f5+ Kf6 29
Bc3+ e5 30 Rxb2 Rxb2 {Wild - unclear {Ljubojevic,L-Polgar,J, Amber 95}} )
( 7 Qd2 b5
!""""""""#
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( 8 Nf3 b4 9 Nd1 Bg4 10 h3 Bxf3 11 Bxf3 Nf6 12 Bg2
O-O 13 O-O Re8 14 Bh6 Bh8 15 Ne3 Nd7 16 Rab1 Rb6 17 Nc4 Ra6 18 a3 Nb6 {unclear
{Smyslov-Fischer, Zagreb 1970}} )
( 8 h4 h5 9 Nh3 Qa5 10 O-O Nd4 11 Kh2 b4 12 Nd1 Nf6
13 f3 Qa4 14 b3 Qa3 15 Qf2 O-O 16 Bc1 Qa6 17 a3 Nxf3+ 18 Bxf3 Bxh3 19 Kxh3 Ng4
20 Qe2 Bxa1 {with advantage to Black {Hracek-Schlosser, Kecskemet 1992}} )
( 8 f4 b4 9 Nd1 Qb6 10 Nf3 f5 {an important move in
this line.} 11 a3 a5 12 axb4 axb4 13 Rb1 Nf6 14 Nf2 Ng4 15 Nxg4 fxg4 16 Nh4 Bc3
17 bxc3 bxc3 18 Qxc3 Qxb1+ 19 Kd2 Qb2 20 e5 Qxc3+ {Black has a winning
advantage {Yudasin-Kiselev, Podolsk 1991}} )
( 8 Nge2 Nd4
9 O-O b4 10 Nd1 e6
!""""""""#
$
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( 11 Nc1 Qa5 { ! } 12 c3 bxc3 13 bxc3 Nc6 {unclear
NCO})
( 11 f4 Ne7
( 12 Nxd4 cxd4 13 Bf2 O-O 14 b3 {unclear NCO} )
( 12 g4 f5 13 gxf5 Nxe2+ 14
Qxe2 exf5 15 a3 b3 16 c3 O-O 17 Re1 g5 18 Nf2 gxf4 19 Bxf4 Ng6 20 Bd2 Qh4 21 d4
cxd4 22 cxd4 fxe4 23 Bxe4 Bb7 24 Bxb7 Rxb7 25 Be3 Re7 26 Qd2 Rf3 27 Rac1 Rfxe3
28 Rxe3 Qg5+ 29 Ng4 Qxg4+ 30 Rg3 Bxd4+ {Black has a winning advantage
{Ashley,M-Nunn,J, San Francisco 95}} ) ) ) ) ) )
Geoff
Peake’s HOME Chess web site
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http://www.geocities.com/rubberducker