VEHÍCULOS DE TRANSPORTE PÚBLICO COLECTIVO

1 d 4 d5 2 c4 e 6 3 ttJf3 ttJf6 4 g3 dxc4 5 �g2 c6

S ... c6 is rarely seen. White can choose to head for the S ... bS lines with 6 0-0 bS 7 a4 but there is also the more challenge with 6 ttJeS!?, which has a downside in that 6 ... ii.b4+ can disrupt the first player's devel­ opment. White can block the check with 7 ttJc3 with decent chances of achieving some­ thing concrete from the opening phase, or he can try the interesting gambit with 7 ii.d2, as seen in both games in this chapter. In the first game Black accepts the second pawn with 7 .. .'ihd4 and faces a difficult task de­ fending against White's threats (something in which he does not succeed). In the second game Black seeks to exploit the temporarily

poor posting of the bishop on d2 with 7 ... ii.e7, adopting a more positional ap­ proach.

Game 87

Chetverik -Burma kin

Nagykanizsa 1993

1 d4 d5 2 c4 e6 3 ttJf3 ttJf6 4 g3 dxc4 5 �g2 c6 6 ttJe5 �b4+ 7 �d2

Let us look at 7 ttJc3 ttJdS. Then 8 'il'c2? ttJxc3! 9 bxc3 'it'xd4! 10 ii.b2 ..ItaS 1 1 ttJf] 'it'f6 12 ttJd2 0-0 13 ttJxc4 ..Itc7 14 0-0 ttJd7

1 5 ttJd2 �g6 1 6 e4 eS saw Black keep the pawn at no cost to himself in Castillo-Sadler, Iinares 1 995.

After 8 .i.d2 the ball is in Black's court. In Bondarevsky-Keres, Moscow 1 947 White emerged with a slight edge after 8 ... ttJb6 9 ttJe4 as 10 e3 0-0 1 1 �c2 ttJ8d7 1 2 .i.xb4 axb4 1 3 ttJxc4 ttJxc4 14 'it'xc4 thanks to his easier piece play. This leaves 8 ... ..Itxc3 9 bxc3 bS 10 a4 when White's activity compensates fully for the pawn deficit. Tkachiev­ Kazhgaleev, Cannes 1 999 continued 1O .. .f6 1 1 ttJf3 0-0 12 e4 ttJe7 1 3 ..Itel !? a6 14 i..a3 ttJd7 1 5 0-0 ttJb6 1 6 as ttJd7?! (1 6 ... ttJa4!?) 17 i..h3 'it>f7 1 8 dS!? (1 8 eS!?) 1 8 ... exdS 19 exdS ttJxdS, and now White could have played 20 ..Ite6+! �xe6 21 ttJd4+ 'it>f7 22 ttJxc6 ttJeS! 23 ttJxd8+ llxd8. Black has only two knights for the queen but the semi-closed position and the great outposts on d3 and dS mean something, although White has the better chances.

7 .. :,'bd4 8 �xb4 'iii'xe5 9 ttJa3 ! b5 Forced. In the case of 9 ... �xb2? 10 llbl �eS 1 1 ttJxc4 White wins after ttJd6+, and 9 ... cS?! is not to be recommended in view of 10 ttJxc4 �c7 1 1 �d6! (Neistadt).

1 0 f4 'iii'c 7 1 1 ttJxb5 cxb5 1 2 �xa8 iLb 7 1 3 �xb7 'i!Vxb7 1 4 0-0

try is 1 4 lUI !? tLld5 1 5 i.c5 tLld7 1 6 'iVd4 f6, when Pankratov-Kharlov, Moscow 1 998 saw 1 7 e4 tLlxc5 1 8 ir'xc5 'iVb6! 1 9 'iVxb6 tLlxb6 20 0-0-0 cJ;;e7 21 .l::td4 l:I.c8 22 l:I.fdl with a very pleasant ending for White. At the mo­

ment only the d-ftle is open so it is difficult for White to break through. After a further opening up of the position the difference in strength between the rook and knight will show. Instead of 1 7 e4 White should con­ sider castling long, as 17 O-O-O! tLlxc5 1 8 'iWxc5 fS 1 9 e4! fxe4 20 fS ! creates a formida­ ble attack against Black's stranded king.

1 4 .. . 'iWb6 +

In Shipov-Maljutin, Moscow 1 991 Black's knights were busy after 14 ... tLlc6 1 5 i.c3 tLle4 16 a4 (1 6 i.xg 7 l:I.g8 17 i.d4 h5 gives Black counterplay) 1 6 ... b4?! (1 6 ... tLlxc3 1 7 bxc3 b 4 1 8 cxb4 'iVxb4 1 9 e 3 is a lesser evil) 1 7 i.e 1 0-0 1 8 'iV c2 tLld6 1 9 i::td 1 tLlfS 20 i.f2 but were nevertheless short of outposts, resulting in insufficient compensation for the exchange.

1 5 'it;h 1

1 5 .. . h5?!

Black should prefer 15 ... tLlc6 16 i.c3 tLlg4 1 7 'iWd6 tLle3 1 8 l:I.f3 (not 1 8 .l::tfdl ?? 'iVb7, when White resigned in Pasman-Stean, Beer­ Sheva 1 978) 1 8 ... tLlf5 1 9 'iVd2 b4 20 i.e5 0-0 and White found his bishop stuck on e5 and his centre weakened, leaving the situation unclear.

1 6 J:l.f3 ttJe4

4 . . . dx c 4 5 i. g 2 c 6

After 1 6 ... tLlc6 1 7 i.c3 tLle4 1 8 i.xg7 l:1.g8 1 9 i.c3 tLlf2+ 20 l:I.xf2 'iWxf2 21 'iWd6 Black restores the points score but the weakness of his dark squares spells serious trouble. 1 7 f5! ttJa6

1 7 ... l:th6 1 8 fxe6 .l::txe6 1 9 'iWfl favours White.

1 8 fxe6? !

More clear-cut is 1 8 i.c3 0-0 (1 8 ... tLlf2+ 19 l:txf2 'iWxf2 20 i.xg 7 l:tg8 21 i.f6) 1 9 'iWd4 with a superior endgame for White.

1 8 .. . 'iWxe6 1 9 a3

In the event of 1 9 i.c3 Black can consider 1 9 ... h4!? because 19...0-0 20 'iWd4 'iWg6 21 �xa7 is preferable for White.

1 9 .. . ttJxb4 20 axb4 ttJg5 21 J:l.f2 21 ::!.xa7 'iWc6 is equal.

21 . . . 0-0 22 'iWd4 'iWc6 + 23 J:l.g2 a6 _24 J:l.d 1

24 'iVh4!? is worth a look. 24 . . . ttJe4

Black's forces enjoy good co-ordination. The knight stands well on e4 and White has pawn weaknesses, thus affording Black com­ pensation for the exchange.

25 �d7 �f6

Also good is 25 ... 'iVxd7 26 l:I.xd7 l:I.e8 but Black prefers to keep the queens on the board. This makes sense as the white king is susceptible to attack.

26 'iWd4 'iWe7 27 e3 J:l.e8 28 'iWd7 'iWe5 29 J:l.d5 �b8 30 J:l.d4 ttJf6 31 'iWd6 'iWb7 32 h3 J:l.xe3 33 'it;h2 J:l.e6

34 �d8 + ?

3 4 �c5 minimises Black's lead to a slight

advantage.

34 . . .'.i.>h7 35 'ii'f8 .:te1 36 'ii'c5 �f3 37 z:tf4 'iVd 1 38 g4?

This loses, but 38 ttgl Uxgl 39 �xgl �d2+ 40 �f2 �xb4 does not help White. 38 . . . l:!.h 1 + 39 'it.'g3 �d3 + 0-1

Game 88

Stefanova-Kurajica

Benasque 1997

1 d4 d5 2 c4 e6 3 4Jf3 4Jf6 4 g3 dxc4 5 i.g2 c6 6 4Je5 i.b4+ 7 i.d2 i.e7

8 i.c3

\,('hite can also play 8 e3, when 8 ... c5!? 9 'ii'a4+ .ltd7 10 'ii'xc4 ttJc6 1 1 ttJxc6 .ltxc6 12 .ltxc6+ bxc6 1 3 dxc5 �d5 14 �xd5 cxd5 15 .ltd .ltxc5 1 6 i..xf6 gxf6 brings about an approximately level ending and 1 1 0-0 offers White an edge.

After the text Black has tried 8 ... ttJd5 9 ttJxc4 b5?!, but this proved good for White in Chetverik-Matras, Prague 2002 when the bishop landed on as: 10 i..a5 i..b4+ 1 1 i..xb4 ttJxb4 12 ttJe3 (1 2 ttJe5?! runs into 12...�xd4! 13 �xd4 ttJc2+ 14 'it>d2 ttJxd4 - note that from e3 the knight protects c2) 12 ... i..b7 1 3 0-0 and White was in control of the vital c5-square. In order to avoid this

situation Black now elects to begin his queenside play by first pushing the a-pawn. 8 . . . a5 9 a4? !

The natural looking 9 0-0 ttJd5 10 ttJxc4 b5 1 1 ttJe5 secures White a modest edge. 9 . . . 4Jd5 1 0 4Jxc4 b5 1 1 axb5 cxb5 1 2 4Je5

Again 12 ttJe3!? is an interesting move, e.g. 12 ... ttJxe3 13 fxe3 tta6 with chances for both sides, or 1 2 ... i..b7 1 3 �d3 b4 14 i..d2 0-0 with equality.

1 2 .. . 0-0 1 3 0-0 i.b7 1 4 'ilib3

14 e4?! ttJf6! 1 5 �d3 b4 1 6 .ltd2 .lta6 17 ttJc4 ttJc6! and Black wins material because d4 is under fire and there is the threat of ... ttJe5! etc. 14 .ltd2 a4 is slightly better for Black.

1 4 .. . b4 1 5 i.d2 4Jc6 1 6 4Jxc6 i.xc6 1 7 e4 4Jb6 1 8 i.e3?!

Or 18 l:tc1 �b 7 19 �e3 a4 and Black is making considerable progress on the queen­ side.

1 8 .. . a4 1 9 'ii'd3 'ilid7 20 d5?

The lesser evil is 20 l:tdl .ltb5 21 �d2 ttJc4.

20 . . . i.b5

Black wins material. 21 �d4 4Jc4 22 i.f4 e5!

23 i.xe5 4Jxe5 24 �xe5 i.xf 1 25 i.xf 1 i.f6 26 �h5 i.xb2 27 '!:!'a2 g6 28 �f3 i.g7 0-1

4 . . . dx c 4 5 Ji. g 2 c 6

Summary

This line is a bit too obscure and lacks something in flexibility for today's top players. If White wants he can transpose to the sharp S ... bS line with 6 0-0 bS 7 a4, while another option is a guaranteed advantage after 6 ttJeS .i.b4+ 7 .i.d2. It is then very dangerous for Black to take the pawns in the centre, and White enjoys an enduring lead after 7 ... .i.e7 8 .i.c3 followed by ttJxc4.

1 d4 d5 2 c4 e6 3 tLlf3 tLlf6 4 g3 dxc4 5 Ji.g2 c6 (D) 6 tLle5 Ji.b4+ 7 Ji.d2 7...'ii'xd4 (D) -Game 87; 7 ... .i.e7 (D) -Game 88