otros modos de configuración
5.15 Llamadas Externas - Configuraciones
This chapter presents an alternative repertoire with 1.c4 e5 2.g3 c6. It is completely independent of Chap
ter 1 and formally, you could skip it (and vice versa!). However, you would improve your understanding if you studied both. It is instructive to observe the impact of the differ
ent move order on the plans in posi
tions with an identical pawn struc
ture. To facilitate comparisons, I will consider the same three major plans I focused on in Chapter 1:
1. White attacks the d5-pawn.
3.d4 e4 4.li:lc3 d5 5.cxd5 cxd5 6.'l;l'b3. The same method of Chap
ter 1 is effective here: 6 ... li:lc6!
7.Wxd5 Wxd5 8.li:lxd5 li:lxd4 and Black achieves comfortable equal
ity.
The big difference is when White continue development with
5 • .ig2. Now we could use the fact that our knight is not on f6 and it cannot be pinned by .ig5. A logical answer is:
5 ... .ib4!?
6.cxd5 cxd5 7.li:lh3 h6 and White should switch to the plan with the break-through f2-f3.
7 ... li:Jf6 is also possible - 8.0-0 0-0 9 . .ig5 bc3 10.bxc3 li:lbd711.f3 h6
12 .b:f6 12lxf6 13.fxe4 12lxe4 14 .11!1 d3
�3 with the better pawn struc
ture, Alvarado Diaz-Ramiro Oveje
ro, Vecindario 2013.
Pros and cons: We can prevent the pin i.g5 with ... h6, but that in
volves ... i.b4, beginning the battle for e4. Play is more positional than in Chapter 1 and Black does not need to sacrifice a pawn. The choice is a matter of taste.
2. White attacks the e4-pawn.
3.d4 e4 4.12lc3 d5 5.12lh3 h6 (5 ...
12lf6!? is also possible) 6.cxd5 cxd5 7.i.g2 12lf6 8.0-0 ib4! 9.f3 0-0! is a critical position which could arise via several move orders. I analyse it in Game 5 Nailer-Delchev, Ordu 2016.
The point is to take on e4 by piece:
10.fxe4 i.xc3 ll.bxc3 �3! 12.�3 lilxe4oo. Next, we connect the knights with ... 12lb8-d7-f6 and im
pose a light-square blockade on the centre.
Pros and cons: The play is identi
cal with Chapter 1.
4?
3. White does not play d4.
3.12l:f3 e4 4.12ld4 1il'b6!
It may seem that 4 ... d5 is strong
er than in Chapter 1. Indeed, after 5.d3, we could already take 5 ... exd3 (with i.g2 12lf6 inserted, White had the unpleasant intermezzo 7.cxd5!).
Still, 6.1il'xd3 dxc4 7.1i!lxc4 is pleas
ant for White due to his pawn ma
jority in the centre. So we adopt the same tactic of repelling the d4-knight from its active stand. Only 5.12lb3 is of independent signifi
cance when 5 ... a5 is not effective in view of 6.d3 a4 7.12l3d2 exd3 8.i.g2 with an initiative.
5 ... 12lf6
6.d3 ( 6.i.g2 a5 - see Chapter 1, line B, and 6.12lc3 a5 - Chapter 3, line
Al.) 6 ••• 12lg4! 7.e3
7.d4 d5 8.cxd5 cxd5 9.12lc3 leads to a familiar pawn structure:
l.c4 e5 2.g3 c6
Since White will attack e4, we fore
stall it with 9 ... .ib4 10 . .ig2 0-0 11.0-0 ixc3 12.bxc3 iild7oo.
7 . . . d5 8.cxd5 (8 . .ig2 iile5) 8 . . . cxd5 9.11Jc3 .ib4!? 10.ig2 0-0!
The best way to fight for the ini
tiative. Once again we can sacri
fice the e4-pawn and obtain last
ing pressure in return. I have an
alysed deeply the consequences.
It would be unnecessary to repeat here the details from the Step by Step chapter so I will only note that after ll.dxe4 dxe4 12.ixe4 /1Jf6 13.ig2 .ig4 14.'liic2 'liia6, the weak light squares cause White constant trouble although a computer should be able to hold on.
Pros and cons: The play may take original turn after 5.iilb3 iilf6 6.d3 lilg4!, but it depends only on White since he could also transpose to Chapter 1 with 6.tg2. On the other hand, Black also has the additional option 4 ... d5 5.d3 exd3 which is not too ambitiuos, but offers easy devel
opment.
Conclusion
2 ... c6 is worth considering, espe
cially if you want to avoid the pin from g5. The trade-off is that with
out a dark-squared bishop (which should go to b4), Black has more modest attacking resources.
Step by Step
1.c4 e5 2.g3 c6
A. 3.li:lf3; B. 3.d4
3.li:lc3 d5 4.cxd5 cxd5 5.d4 e4 is covered in Line B. and 3 ... li:lf6 is considered in Chapter 3.
3.tg2 d5 should transpose to line B (3 ... li:lf6 is the subject of Chapter 1).
I did not face any problems after 4.cxd5 cxd55.d4e46.f3tb4+ 7.td2
hd2+ 8.'l!!lxd2 exf3 (8 .. .f5!? and 8 ...
li:lf6 are more tangled) 9.exf3 li:le7 10.li:le2 0-0 ll.li:lbc3 li:lbc6 12.0-0 te6 13.!ladl li:lf5 14.g4 li:lh4 15.li:lf4
!le8 16.thl li:lg6 17.li:lce2 draw, Vau
lin-Delchev, Zadar 1998.
44
A. 3.li:if3 e4 4.li:id4 'l;l'b6! ? We should not try to transpose to Chapter 1 or 3 with 4 ... li:lf6, hoping to see 5.tg2 or 5.li:lc3, since White has a better move order: 5.d3 when 5 ... exd3 6.'l;l'xd3 d5 7.tg2 dxc4 8. 'l;l'xc4 is pleasant for White due to his pawn majority in the centre - 8 ... li:lbd7 9.0-0 li:lb6 10.Wd3 tc5 11.!ldl 0-0 12.li:lc3 h6 13.e4.
4 ... d5 is a popular move, but it of
fers White some initiative. For in
stance:
5.d3 poses a problem - 5 ... li:lf6 6.tg2 throws us out of the reper
toire from Chapter 1. Besides, I do not like this position anyway. Re
mains:
5 ... tc5 6.li:lb3
6.dxe4 dxe4 7.te3 li:lf6 8.li:lc3 Wfe7 (8 ... 0-0 9.li:lxc6) 9.h3 0-0 is roughly equal - 10.Wfc2 !ld8
11.!ldl lila6 12.tg2 '/!!le5 13.lilb3
!lxdl+ 14.li:lxdl he3 15.li:lxe3 td7 16.0-0 c5 17.li:ld2 tc6=.
6 ... tM+ 7.td2 hd2+ 8.'l!!lxd2 exd3 9.Wxd3 dxc4 10.'1ilxc4 li:lf6 n.tg2 0-0 12.0-0
I prefer to avoid such positions with a mobile pawn centre for the enemy.
Note that lately Black is also experiencing problems after 4 ... d5 5.cxd5 '1¥d5 6.ltlc2
6.e3 ltlf6 7.i.g2 °/i,1e5 8.f4 exf3 (8 ... We7!? 9.ltlc3 g6 10.'1¥c2 tg7 11.ltlxe4 ltlxe4 12.'1¥xe4 '1¥xe4 13.he4 0-0 14. M2 �e8:i:) 9.ltlxf3 '1¥h5 10.d4 i.b4+ ll.td2 ltla6=.
6 ... ltlf6 7.ltlc3! (7.tg2 is mentioned on page 18.) 7 ... Wh5
Perhaps 7 ... '1¥e5! 8.tg2 te7 will replace 7 ... '1¥h5 in future.
8.ltle3
8.h3 prevents ... i.h3, but weak-ens g3. After 8 ... '1¥g6 9.i.g2 id6 10.ltle3 0-0 ll.Wc2 �e8, the threat ... hg3 will be a constant concern for White.
8 ... tc5 9.'1¥c2
I analyse this position in detail in the annotations to Game 5 Anand
�
dams, Shamkir 2015. In my opinion, best practical chances offers the pawn sacrifice 9 ... 0-0!?.
5.ltlb3
5.e3 ltlf6 6.i.g2 d5 7.cxd5 cxd5 8.d3 (8.0-0 ig4 - see Chapter 1, line B) 8 ... ltlc6 9.dxe4 dxe4 10.ltlc3 ib4 is covered in Chapter 3, line A2.
5.ltlc2 d5 should also transpose to the corresponding chapters.
5 . . . ltlf6
The method from Chapter 1, 5 ... a5, is not effective here in view of 6.d3 a4 7.ltl3d2 exd3 8.i.g2 with an ini
tiative.
6.d3
Practice has only seen 6.i.g2 a5 -see Chapter 1, line B, and 6.ltlc3 a5 - see Chapter 3, line Al. The text, however, is the sternest test of Black's plan. It demands from Black ingenious play:
6 ... ii:lg4!
Or 6 ... exd3 7.�xd3 d5 8.ig2.
7.e3
7.d4 d5 8.cxd5 cxd5 9.ii:lc3 trans
poses to a position which has oc
curred in a few games via a differ
ent move order.
I analysed this pawn structure in the previous chapter. White's most dangerous plan is based on f3 when we commonly trade our dark
squared bishop for the c3-knight and hold e4. The placement of the king's knight on b3 does not change the evaluation:
a) 9 ... .ib4 10 . .ig2 0-0 11.0-0 hc3 12.bxc3 ii:ld7
The idea of this move is to meet 13.f3 ii:lgf6 14.ig5 by 14 ... h6. Al
ternatively, 14.fxe4 ii:lxe4 15.c4 dxc4 is balanced. More aspir
ing is to keep the blockade on e4 with 15 ... l;e8!? 16.cxdS �g6 17.�d3 ii:ldf6.
If White postpones the break in the centre, we can transfer the
cent option, but I would not recom
mend to enter OTB the position af
ter 10.f3 iilf6 11.fxe4 iilxe4 12.ig2 i.b4 13.0-0 (13.i.d2 iilxd2 14.�xd2 iild715.0-0 0-0 16.�g5hc3 17.bxc3 l;ac8 18.i;acl f5+) 13 ... iilxc3 14.bxc3 hc3 15.i;bl iild7 16.ia3 �a6 17.e4!
17.i.c5 �a4 (threatening ... iilxc5) 18.id6 �a6 is a draw.
17 ... dxe4 18.d5 �xa3 19.dxe6 fxe6
Black is holding here, but only if he calculates like a computer.
7 ... d5 8.cxd5 (8.ig2 iile5) 8 ... i.g4 13.f3 ie6 14.0-0oo is a worse version of the main line.
10 ... i.e6 11.0-0 f5 12.dxe4 dxe4 13.iild5 �d8 14.iilf4 ic4 15.he4 fxe4 16.�xg4 Ml 17.@xfl �d7 18.iile6 iild819.iilbd4iilxe6 20.iilxe6
!;c8 whereas White can force a draw with 21.�xe4 �dl+ 22.@g2 fuel 23.fucl 'i!\lxcl 24.iilxg7+ @f7 25.iile6 i.e7 26.�fS+ @e8 27.iilg7+ @d8 28.iile6+ @e8.
l.c4 e5 2.g3 c6
9 ... tb4!?
The email game Portych-Cardenas Huaman, ICCF 2011, saw 9 ... 'il'f6 10.'il'c2
The queen would be vulnera
ble on d2 as seen from the line 10.'il'd2 'il'f3 lU'lgl lilc6 12.lilxd5 (12.h3 lilge5 13.lilxd5 exd3 14.lilc7+ @d8 15.lilxa8 .ib4) 12 ...
exd3 13 . .ig2 lilge5 14.@fl th3 15.lilc7+ @d8 16.txh3 @xc7t.
10 ... 'il'f3 11.!lgl exd3
ll ... tb4 12.h3 exd3 13.hd3 lile5 14 . .id2 lilxd3+ 15.'il'xd3 hc3 16.hc3 0-0 is also some
what better for White although his winning chances in an end
game would be very slim due to the opposite-coloured bishop, e.g. 17.!ldl !ld8 18.lild4 'il'e4.
12.hd3 lilc6 13.lild4 lilxd4 14.exd4 .ib4 15.'il'e2+ 'il'xe2+ when instead would retain a slight pull in the end
game with 16.@xe2! te6 17.f3 lilf6 18.lilb5.
10 • .ig2
The correspondence game Putt
Lovelock, New Zealand 2003, saw 10 . .id2 'il'f6 ll.f4 exf3 12.lilxd5 hd2+ 13.'il'xd2 f2+ (13 ... 'il'd6!?
14.e4 .ie6=) 14.@e2 'il'd6 15.'il'c3 15.e4 gives Black time to castle - 15 ... 0-0 16.h3 lile5 17.d4 lilg6 18.@xf2 f5t.
Now instead of15 ... 0-0? 16.lilc7, Black seizes the initiative with:
15 ... lila6! 16.'il'xg7 'il'xd5 17.'il'xhS+
@e7 18.e4 'il'h5 19.'il'g7 lilf6+
20.@xf2 .ig4 21.e5 lile8 22.'il'hS !ld8 and White must find only moves.
10 ... 0-0
Only 10 ... lilf6 11.0-0 0-0 has been tried so far in two old correspon
dence games. White has the more active pieces after 12.dxe4 hc3 13.bxc3 dxe4 14.'il'c2 !le8 15.c4.
11.dxe4
After 11.0-0, the original queen lift 'il'd8-b6-h6 allows us to put pres
sure on the enemy king - ll ... 'il'h6 12.h3 lilf6 13.dxe4 hc3 14.bxc3 dxe4 15.h4oo.
ll.td2 l'ld8 12.dxe4 dxe4 13.txe4 lilf6 14.tg2 tg4 15.�c2 �a6 is simi
lar to the main line.
Black has full compensation for the pawn. An illustrative line is:
16.h3 te6 17.a3 lilc6! 18.axb4 lilxb4 19.�bl �d3 20.lild4 E1xd4 21.exd4 lilc2+ 22.Wdl tb3 23.©cl �xd4oo.
It is undoubtedly easier to play this position wit Black.
11 ••• dxe4 12.he4 lilf6 13.tg2 tg4
Black's active pieces fully compen
sate the missing pawn. The point of his counterplay are the weak light squares d3 and c4, and split queenside pawns (after ... txc3).
The further play is not forced so I will try to illustrate several key points.
L[Q
I have analysed two possible ap
proaches from here:
Al. 14.:f3 .ie6 15.0-0 lilc6 Decent alternatives are:
15 ... tc4 16.l'lf2 lilc6 17.lila4 l'lad8 18.�c2 �b5 19.lilc3 �a6 20.a3 te7 21.tfl txfl 22.l'lxfl l'ld3 23.l'ldl l'lfd8 24.l'lxd3 l'lxd3�.
15 ... l'ldS 16.�e2 lilc6 17.lila4 �a6 18.�xa6 bxa6�.
16.lila4 'fil>5 17.lild4 lilxd4 18.exd4 l'lad8 19.a3 te7 20.l'lel lild5 21.lilc3 'fil>6
Black is threatening 22 ... lilf4 and 22 ... tf6. 22.lilxd5 l'lxd5 is not too helpful. Perhaps White should seek adrawwith 22.lila4, but Black could deviate from repetition by 22 ... �c6.
A2. 14.Vifc2 Vifa6 15 • .id2
15.f3 te6 16.lild4 (16.©f2 lilc6 is similar to Al.) 16 ... tc4 17.tfl l'lc8 18.©f2 txf1 19.l'lxfl lilc6 20.l'ldl lild5 21.lilde2 lilxc3 22.bxc3 tc5
1.c4 eS 2.g3 c6
Black has a long-term compensa
tion due to his better pawn struc
ture. He does not need to rush since the weak a- and c-pawns will not run away. White can push e4, a4, l'lbl, but that's all. For his part, Black can double his rooks on the d-file or place them on d8 and c8:
a) 23.l'lbl Illes 24.lild4 h6 Alternatively:
24 ... l'ld8 2S.'/:!.1e2 lilc4 26.l!lg2 l'lac8=.
24 ... lilc4 2S.e4 l'ld8 26.l!lg2 l'ld7.
2S.'/:!.1e2 lilc4 26.e4 l'lc7=.
b) 23.a4 Illes 24.l!lg2 l'ld8 2S.e4 l'lxdl 26.Wxdl li:ld3 (26 ... '/:!.1c4=) 27.ta3 ha3 28.l'lxa3 l'ld8 29.li:ld4 li:leS�.
15 ... lilbd7 16.a3 hc3 17.hc3 l'lac8 18.lild4 lilc5 19.h3 "15 20.Hl f;\1d6 21.tc4 tg6 22.We2 li:lfe4 23.tb4 1"fe8oo
White is unable to keep the extra pawn - 24.g4 li:lxf2 or 24.0-0 lilxg3.
B. 3.d4 e4 4.lilc3
After 4.dS, we should not linger too much with ... cxdS since we can miss the moment as in the game Hellbing-Dutra Neto, IECG email 2004: 4 ... �b4+ 5.�d2 We7 6.li:lc3 li:lf6 7.li:lh3 0-0 8.tg2 d6?! (correct was 8 ... cxdS! 9.cxdS d6 10.li:lxe4
�3 ll.lilxf6+ '/:!.1xf6 12.�3 '/:!.1xb2 13.hb4 '/:!.1xb4+ 14.Wd2 '/:!.1xd2+
1S. l!lxd2 iila6 16.e4 li:lc5 17.l'lhel l'lfe8 draw, Lukesova-Vegjeleki, ICCF email 2010) 9.li:lxe4 �3 10.li:lxf6+
'/:!.1xf6 11.�3 Wxb2 12.l'lcl cxdS 13.l'lc2! (this intermezzo punishes Black's tactic) 13 ... hd2+ 14.'/:!.1xd2oi;.
Perhaps the most challenging is:
4 ... cxdS S.cxdS lilf6 6.tg2
6.li:lc3 tb4 7.td2 0-0= 8.tg2 l'le8 9.li:lh3 d6 10.0-0 tfS 11.lilf4 gS 12.li:lh3 h6+, Schrancz-Schus
ter, LSS email 2009.
6 ... tb4+ 7.�d2 '/:!.1e7 8.a3 hd2+
9.li:lxd2 0-0
10.d6 '/:!.1e5 11.li:lc4 '/:!.ibS 12.l'lcl b6oo.
4.lilh3 dS S.li:lc3 h6! transposes to 5.li:lh3.
4 ... d5
Bl. 5.cxd5; B2. 5.i.g2; B3. 5.ltlh3, but have in mind that these lines of
ten interweave.
Bl. 5.cxd5 cxd5 6.Wb3
In all other lines the exchange on d5 might prove premature as it of
fers Black the extra option of ... ltlc6.
However, I'm not sure Black should go for it as the knight move delays the development of the kingside:
For instance:
6.ltlh3 ltlc6?!
Line B3 deals with 6 ... h6!? and 6 ... i.b4!?.
7.i.g2 i.b4
7 ... h6 8.0-0 ltlf6 9.f3 exf3 10.exf3 i.e7 1Li.e3 0-0 12.ltlf4, Czebe
Farago, Hungary 2006,
may be playable, but Black lacks an active plan. He should trans
fer his bishop to b6 via e7-d6-c7, e.g. 12 ... tfs 13.E1cl i.d6!.
8.0-0 ltlge7 9.ltlf4 0-0 10.f3 f5 1L'!Wb3 hc3 12.1Wxc3 \Wd6 13.\Wc5
\Wxc5 14.dxc5 g5 15.ltlh5 h6 16.b3;!;
Markowski-Krasenkow, Warsaw 2010.
6 ... ltlc6! 7.V!!'xd5 Wxd5 8.ltlxd5 ltlxd4 9. ltlc7 +
9.i.g5 ltlc2+ 10.lild2 ltlxal 1Lltlc7+
@d7 12.ltlxa8 h6 13.i.f4 i.b4+
14.lilcl ltlf6 15.i.g2 lile7 16.ltlc7 i.d7 17.@bl
Now 17 ... E1c8 keeps the material balance due to the idea ... i.d6, e.g.
18.i.h3 g5 19.i.e5 g4t.
17 ... ltlc2 is also interesting -18.@xc2 E1c8 19.lilbl h5 20.i.eS hc7 2Lhf6+ lilxf6 22.he4 i.b6 23.hb7 E1c4. Black is two pawns behind, but his raging bishops will easily regain them.
9 ••• @dS 10.lilxaS lilc2+ 11.lildl lilxal
The stem game De Bari-Penafiel Lopez, ICCF 2009, continued
l.c4 e5 2.g3 c6
12.tf4 te6 13.b3 li:lxb3 14.axb3 hb3+ 15.@cl ta3+ 16.@bl li:le7 17.e3 g5 18.hg5 ©d7 19.il.h3+
te6 20.he6+ fxe6 21.he7 he7 22.li:le2 E1xa8 and White was happy to draw this endgame.
B2. 5.tg2 .ib4!?
5 ... li:lf6 transposes to Chapter 1. The text is the only reasonable way to rip dividends from 2 ... c6.
6.f"3
6.td2 hc3 7.bxc3 li:lf6! 8.cxd5 cxd5 9.li:lh3 0-0
useless td2. The gameA.Larsen
Konstantinov, ICCF 2013, went further 11.0-0 E1e8 12.11\'cl lilbd7 13.hh6?! gxh6 14.1!\'xh6 lilf8 15.1!\'g5+ (15.fxe4 li:lxe4) 15 ... lilg6 16.lilf4 exf3 17.lilxg6 lilh7+.
Besides, he could discard ... h6 at all and aspire to the advan
tage with:
10 ... E1e8 11.0-0 e3!? 12.tel lilc6 (or 12 ... h5!?). The e3-pawn splits the board, hindering White's commu
nication.
6.cxd5 cxd5 branches to:
a) 7.lilh3 li:lf6 (7 ... h6 is line B3) 8.0-0 0-0 9.tg5 hc3 10.bxc3 li:lbd7 11.f3 h6
12.hf6
12.M4 lilb6 13.lilf2 tf5 14.1!\'b3 E1e8 secures Black' s control of the light squares. Then 15.a4 lilc4 16. Wxb7 puts him in total command after 16 ... E1e7 17.1!\'b4 a5 18.1!\'b5 exf3 19.exf3 E1c8.
12 ... lilxf6 13.fxe4 lilxe4 14.1!\'d3 hh3 with the better pawn struc
ture, Alvarado Diaz-Ramiro
Oveje-10.f3 ro, Vecindario 2013.
Black can now reach a better
ver-sion of line B3 after 10 ... h6 since b) 7.f3 li:lf6 8 . .ig5 0-0 9.fxe4 dxe4 White has spent a tempo on the 10.e3
Black has enough compensation following 10.ixe4 !le8
ll.ig2 \Wa5 12.lilf3 ixc3+
13.bxc3 \Wxc3+ 14.id2 \Wd3 15.if4 \Wc3+ 16.id2 \Wd3 17.if4
\Wc3+ 18.id2 draw, Kerr-Sch
ramm, ICCF 2010.
10 ... h6 ll.i:xf6 1Wxf6 12.lilge2 ig4c:o, B.Damljanovic-Komarov, Le Port Marly 2009.
6 ... lilf6 7.3.gS
Perhaps it was time to include 7.cxd5 cxd5 because after the text, Black could exchange on f3 and grab the c4-pawn with unclear con
sequences.
7 ... 0-0!?
line Cl, but this move is nnneces
sary here.
8.fxe4 dxe4 9.lilh3
9.ixe4 !le8 10.ig2 lilbd7 11.lilf3 h6 leads to an interesting position with mutual chances. For example:
12.icl lile4 13.\Wb3 \Wa5 14.id2 lilxd2 15.lilxd2 lilf6 - the pressure along the e-file promises Black a lasting initiative.
9.\Wb3 a5 10.a3 ie7 11.!ldl lilg4 12.ixe7 \Wxe7 13.lilxe4 a4 14.Wc3 f5 is double-edged.
9 ... lilbd7
9 ... h6 10.M6 Wxf6 n.lilf2 !ldS 12.e3 Wg5 13.Wcl f5 also deserves attention.
10.0-0 hc3 11.bxc3 h6 12.3.xf6 White's bishop does not have good prospects after 12.3.cl lilb6.
12 ... lilxf6 13.lilf2 !le8oo
Black has a target on c4. He could 7 ... lilbd7 transposes to Chapter 1/ attack it with ... We6, ... b6, ... h6.
52
B3. 5.lilh3 h6
This move secures the d5-pawn, but it slows down development. More challenging is:
5 ... lilf6!? 6.cxd5 cxd5 7.tg5 tb4
8.txf6
Alternatively:
8.Wa4+ lilc6 9.e3 h6 10.txf6 Wxf6 11.lilf4 Wd6 12.Wb3 lile7 13.tb5+ liifS 14.h4 g6=;
8.2'1cl lilbd7 9.e3 h6 10.txf6 ixc3+ 11.2'1xc3 lilxf6 12.lilf4 0-0=;
8.tg2 ixc3+ 9.bxc3 lilbd7 10.f3 exf3 11.txf3 h6 12.txf6 lilxf6 13.lilf4 g5oo, Mercadal Benejam
Joppich, ICCF 2015.
8 ... Wxf6 9.lilf4 Wd6
Black has saved the d5-pawn and should gradually level the game:
10.Wb3 te6 11.Ecl 0-0 12.e3 lilc6 13.a3 ixc3+ 14.2'1xc3 2'1fc8 15.te2 (15.lilxe6 Wxe6) 15 ... lila5 16.�b4
Wxb4 17.axb4 2'1xc3 18.bxc3 lilc4 19.ixc4 dxc4 20.lilxe6 fxe6 21.liie2 a5=.
5 ... tb4!? 6.ig2 lilf6 transposes to Chapter 1, Line C, but White has also:
6.Wa4
6.�b3 a5 is similar, only the b-pawn is not hanging. Black was fine after 7.cxd5 cxd5 8 .. a3 (8.tg5!? f6) 8 ... ixc3+ 9.bxc3 a4 10.�b5+ lilc6, Klekowski-Nava
ra, Hockenheim 2015. The d5-pawn could be defended by ... 2'1a5.
6 ... a5 7.cxd5 b5 8.�b3 cxd5,
when 9.e3 could be met by the sharp 9 ... lilf6 10.ixb5+ td7 11.ixd7+
�xd7 with compensation for the pawn - White cannot castle safely due to the weak h3-square.
6.cxd.5 cxd5 7.tg2
7.lilf4 lilf6 8.�b3 (8.tg2 g5!?) is an
other version of the pawn sac 8 ...
lilc6! with an initiative - 9.lilfxd5 lilxd5 10.�xd5 �xd5 11.lilxd5 lilxd4 12.lilc7+ @as 13.M4 lilc2+ 14.liid2 lilxal 15.lilxaS ie6+, Tikkanen
Grandelius, Malmoe 2013.
7 ... lilf6 8.0-0 tb4! 9.f3
9 . . . 0-0!
metrical pawn structure after 9 ...
exf3 10.exf3 which might be bor
ing to defend. Besides, the com
puter claims that 9 ... exf3 is a tacti
cal mistake in view of 10.!lxf3! 0-0?
ll.!lxf6! or 10 ... hc3 ll.!le3+! �e6 12.bxc3 0-0 13.iilf4 when 13 ... MS 14.!leS and 13 ... 'i!ld7 14.iilxe6 are slightly better for White.
It is always better to avoid the
sym-After the text Black holds the crit
ical square e4 and has full-fledged play. See Game 6 Nailer-Delchev, Ordu 2016.
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