CVO_135.pdf

No. 135, August 3, 2011

OPENINGS

WHAT'S HOT AND WHAT'S NOT?

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The King's Indian

battleield

By IM Merijn van Delft & IM Robert Ris

Frequency

The tournament in Biel was won by Carlsen,

Dortmund by Kramnik, and Armenia, led by Aronian,

took gold at the World Team Championship. Adams

and Short are leading the British Championship after

seven rounds.

WHAT’S HOT?

Score

1.d4 was clearly the main move this week. Below we explain how Giri

managed to be a healthy pawn up after twenty moves in the QGD. In the

Semi-Slav Black looked fine this week. Morozevich's new approach in

the Anti-Moscow is covered, while Vachier Lagrave-Shirov (5.g3 gambit)

looked like deep preparation by both players. Morozevich did well with the

Black pieces, drawing against Carlsen in the Vienna and beating Pelletier

with 1.d4 d5 2.¤f3 e6 3.c4 a6!?.

Our Game of the Week , Kramnik-Nakamura, was a King's Indian

rollercoaster. In the diagram position the former World Champion picked

the sideline 10.c5 and went down in the complications. Ponomariov

prefered the very dry 8.dxe5 against Nakamura and was proven correct

in the end. In Shankland-Nyzhnyk the position that's currently the most

critical in the King's Indian came under discussion (see below). The

Grünfeld is also very rich in content, but somewhat less risky from Black's

perspective. Carlsen-Vachier Lagrave (Fianchetto) and Rodshtein-

Kovchan (7.¥e3) were drawn, while in Harikrishna-Grischuk (4.¥g5) and

Pelletier-Caruana (7.¤f3 c5 8.¦b1) Black won. Below there's more on the

Russian Variation.

Source: Megabase + TWIC, 2500+ only

The 1.e4 main lines weren't popular at all this week. As we mentioned before, part of the problem is the Berlin Endgame. In Shirov-

Carlsen and Ponomariov-Kramnik the Anti-Berlin (4.d3) was played, but White can hardly be happy with a 25% score. Howell played

his usual Scotch instead, but lost against Adams. To add another problem for White,

Caruana-Carlsen was an interesting interpretation of the Philidor (7...a6!?) that needs a

careful look.

WHAT'S NOT?

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ChessVibes OPENINGS what’s hot and what’s not?

No. 135, August 3, 2011

Sacriicing Tal style

The following game isn’t without mistakes, but it was entertainment of the highest order.

Having already secured tournament victory, Kramnik decided to take a serious risk and had

to pay the price in the end.

GAME OF THE WEEK

Objectively better would have been 32.¤xd6

though after 32...¦cf8 33.¤xf7+ £xf7 34.£xf7

¦xf7 the endgame remains unpleasant for White.

32...¢g8 33.£h7+ ¢f8 34.¤e6+ ¢e8 35.£h5

¥f6?

Throwing away the advantage. 35...£f6! 36.¤g5

e4 37.¦e1 £d4+ 38.¢f1 £d3+ 39.¢g1 ¦cc7

would still have favored Black.

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Kramnik,V (2781) - Nakamura,H (2770)

Dortmund, 31.07.2011

E97, King ' s Indian, Bayonet, 10.c5

he ' s doing fine. Realizing he hasn ' t gained

anything so far, Kramnik decides to gamble his

position with a speculative sacrifice.

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23.¤fxg5?! hxg5 24.£xg5 ¥g6

Even better seems 24...¦f5! when the £ has to

retreat, since 25.£h4 is met strongly by 25...¥f6!

26.¤xf6 ¤g6 27.£xh5+ ¦xh5 28.¤xh5 £g5 and

Black is clearly on top.

25.cxd6 cxd6 26.¦a7 ¦c8

26...¦f7!? also comes into consideration.

27.¦xe7 ¦xc4 28.f3 ¦c2+ 29.¢g1 ¦c8 30.¦a1

¦f7

Black has no time for launching a counterattack

with 30...b5? 31.¦aa7 £b6+ 32.¢g2 ¦f5

33.£h4+ ¥h5 (33...¦h5 34.£g4 ¦c2+ 35.¢f1

wins) 34.g4 £e3 35.£f2 £d3 36.gxf5 ¦c2

37.¢g3 ¦xf2 38.¦a8+ ¢h7 39.¢h4!! and White

is suddenly winning, due to the mating threat

¤g5/¦h8/¦h7.

31.£xg6

Sacrificing another exchange, so White will

be a full ¦ down! However, better would have

been 31.¦aa7! which seems to maintain the

balance, e.g. 31...¦xe7 32.¦xe7 ¦c1+ 33.¢g2

¦c2+ 34.¢g1 £a8 35.£h4+ ¥h7 36.¦a7! £xa7

37.£d8+ and perpetual check is inevitable.

31...£xe7!

Obviously not 31...¦xe7? which allows White

to force a draw with 32.¤g5 ¥f8 33.£h5+ ¢g8

34.£g6+ ¦g7 35.£e6+ ¢h8 36.£h6+=.

32.¤g5

1.d4 ¤f6 2.c4 g6 3.¤c3 ¥g7 4.e4 d6 5.¤f3 0–0

6.¥e2 e5 7.0–0 ¤c6 8.d5 ¤e7 9.b4

In their encounter at the last Olympiad, Kramnik

chose 9.¤d2 which was extensively analyzed in

CVO 91. A recent update on this line was given

in CVO 132.

9...¤h5 10.c5

A rare continuation. The absolute main line starts

with 10.¦e1 which has been covered on several

occasions. Another minor variation is 10.g3 as

mentioned in Van Wely-Stellwagen, Amsterdam

2009 (see CVO 35).

10...¤f4 11.a4

A more common approach is 11.¥xf4 exf4

12.¦c1 a5 (12...h6 13.¤d4 a6 14.h3 ¢h8

15.£d2 ¤g8 16.¦fd1 h5 17.£xf4 ¥h6 18.£g3

h4 19.£d3 ¥xc1 20.¦xc1 gave White excellent

compensation for the exchange in Ivanchuk-

Grischuk, Nalchik 2009.) 13.cxd6 cxd6 14.b5

(14.¤b5 ¥g4 15.¦c7 axb4 16.£d2 ¥xf3 17.¥xf3

¥e5 18.¦xb7 £a5 was slightly better for Black

in Kamsky-Kasparov, New York rapid 1994.)

14...h6 15.¤d2 f5 16.¦e1 ¢h7 17.¥d3 fxe4

18.¥xe4 ¥d7 19.¤f3 ¦c8 with mutual chances in

Buhmann-Sasikiran, Gibraltar 2011.

11...f5 12.¥c4 fxe4 13.¤xe4 h6 14.¦e1

In Bareev-Amonatov, Dagomys 2008 White

proceeded with 14.g3 though after 14...¤h3+

15.¢g2 ¥g4 Black ' s position would have been

comfortable.

14...¥g4 15.¦a3

One of the ideas of White ' s 11th move is that

the ¦ can be brought into play via the 3rd rank,

overprotecting the ¤ on f3.

15...g5 16.h3 ¥h5 17.¥xf4 ¦xf4 18.g3 ¦f8

19.a5

19.¢g2?! is inaccurate, in view of 19...a5!

allowing Black to stabilize the situation on the

queenside.

19...¢h8 20.¢g2 ¦b8 21.£d2 b6 22.axb6 axb6

Black has managed to deal quite well with

White ' s usual queenside expansion and hence

36.g4?

After this move it ' s definitely over. White

should have gone for 36.£g6! £b7 37.f4!

¢e7 (37...£xd5? loses to 38.£g8+) 38.g4

and according to the engines White holds the

balance.

36...£b7 37.¦d1 £a6! 38.£g6

After 38.g5 £e2! 39.¦a1 £b2! the ¦ will enter

on c2.

38...¢e7

38...£e2? is premature now, because after

39.¦a1 £b2? doesn ' t work any longer, in view

of 40.£g8+! with mate to follow.

39.g5 ¥h8 40.¦e1 £a3 41.¤d4 £xb4 42.¤f5+

¢f8

42...¦xf5? would be a huge mistake, in view of

43.£e6+ ¢d8 44.£g8+! with perpetual check,

as 44...¢c7? is met by 45.¦c1+ and White wins.

43.¦d1 ¦c2 44.¤d4

44.¤xd6 is beautifully met by 44...£c5+ 45.¢h1

¦h2+! leading to a forced mate: 46.¢xh2 £f2+

47.¢h1 £xf3+ 48.¢h2 £e2+ 49.¢g3 £f2+

50.¢g4 ¦f4+ 51.¢h5 ¦h4#.

44...exd4 45.£xc2 £c3 46.£e4 £e3+ 47.£xe3

dxe3 48.¢g2 ¥c3 49.¢f1 ¦xf3+ 50.¢e2 ¦xh3

0–1

KRAMNIK - NAKAMURA

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ChessVibes OPENINGS what’s hot and what’s not?

No. 135, August 3, 2011

THIS WEEK'S HARVEST

QGD, 5.¥f4

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1.d4 ¤f6 2.c4 e6 3.¤f3 d5 4.¤c3 ¥e7 5.¥f4 0–0 6.e3 ¤bd7 7.a3 c5 8.cxd5 ¤xd5 9.¤xd5 exd5 10.dxc5 ¤xc5 11.¥e5

¥g4 12.¥e2 ¥xf3 13.¥xf3 ¥f6 14.¥xf6 £xf6 15.£c2 ¦ac8 16.¥xd5 ¦fd8 17.¦d1 £e5 18.£c4 b5 19.£a2 ¦d7 20.0–0

In the diagram position from the game Giri-Ponomariov, White has emerged from the QGD a healthy pawn up.

Especially the £ manoeuvre £c2–c4–a2 is remarkable. In the first round in Dortmund Giri had tried the sideline

6.¦c1 against Nakamura (draw) and against Ponomariov the super solid 7.a3!? was tested (7.c5 is the main

line, see CVO 125). With 12...¤e6 and 12...¥f6 Black has solid alternatives, but in those cases White is clearly

playing for two results. With the novelty 15.£c2!? Giri deviated from Mamedyarov-Kramnik, Dortmund 2010, and

it seemed that Ponomariov was taken by surprise. The correct defence might be 16...¤e6! 17.£b3 ¤c5! 18.£b5

£f5! 19.¦d1 ¦fd8 20.e4! ¤xe4 21.0–0 and after something like 21...b6 22.£d3 ¤d6 23.£xf5 ¤xf5 24.¦fe1 ¢f8

25.¢f1 Black is close to equality, but White still has the potentially superior minor piece. All this shows that elite

players need to do an enormous amount of work to be able to play the QGD, and at all other levels Black should

think twice before choosing this classical opening.

Semi-Slav, Anti-Moscow

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1.d4 d5 2.c4 c6 3.¤f3 ¤f6 4.¤c3 e6 5.¥g5 h6 6.¥h4 dxc4 7.e4 g5 8.¥g3 b5 9.¤e5 ¥b7 10.h4 g4

11.¤xg4 ¤xg4 12.£xg4 £xd4 13.£f4 ¥b4 14.¦d1 ¥xc3+ 15.¢e2 £e5 16.£xe5 ¥xe5 17.¥xe5 ¦h7 18.¢e3 ¤d7

It's been quiet for a while in the Anti-Moscow, but in Biel Morozevich introduced an interesting new approach.

The line 10.h4 g4 11.¤xg4 ¤xg4 12.£xg4 £d4 had been considered fine for Black, because 13.¦d1 doesn't

leave much scope for creativity and, in fact, leads to equality. Moro's 13.£f4!? looks like a logical improvement

upon theory, as the £ prevents its counterpart from retreating to f6. In other lines the £ might eventually invade

on c7, taking advantage of the weakened dark squares on the queenside. Caruana said afterwards that he'd

already been aware of this new move for two years, so his reply seems to be the critical test. In the diagram

position White might have considered 19.¥c7!?, since after 19...¦c8 20.¥d6 f6 21.¥e2 White's pieces are more

harmoniously coordinated. In the game, Moro played 19.¥g3 and Caruana committed a slight mistake by castling

queenside, which could have been met strongly by 20.b3! as 20...cxb3 fails to 21.¥xb5! Moro failed to exploit his

chances and eventually lost after falling for a trick.

King's Indian, main line

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1.d4 ¤f6 2.c4 g6 3.¤c3 ¥g7 4.e4 d6 5.¤f3 0–0 6.¥e2 e5 7.0–0 ¤c6 8.d5 ¤e7 9.¤e1 ¤d7 10.¤d3 f5 11.f3 f4

12.¥d2 g5 13.¦c1 ¤g6 14.c5 ¤f6 15.¤b5 ¦f7 16.¥a5 b6 17.cxd6 cxd6 18.¥b4 ¥f8 19.¦c6 ¤e8 20.a4 h5 21.¤f2

It's been a while since we had a closer look at the relatively new King's Indian line with 15.¤b5. Slowly but surely

a consensus is forming that 11.f3 is the most accurate move order, since 11.¥d2 allows the extra option of 11...

fxe4!? 12.¤xe4 ¤f5 as recently played by Giri (who keeps adding new openings to his repertoire!) and Berg.

More on 15...a6 16.cxd6! axb5 17.dxc7 Giri-Nijboer, Haaksbergen 2009, can be found in CVO 38. This week in

Shankland-Nyzhnyk White went for 18.¥b4!?, because after 18.¥e1 a6 (18...g4 19.fxg4! may be good for White

as shown by Ragger) 19.¤c3 a5! (to prevent ¤b4) Black may have enough counterplay, as in Giri-Grischuk,

Monaco blindfold 2011. In the diagram position White piles up pressure against d6, while an attack on ¦c6 is

ignored in the standard fashion, making it a strong positional exchange sacrifice. Since Black has problems

getting g4 in, White tends to have the upper hand in these lines. Shankland did an incredible job of calculating all

the checks and won an impressive game.

Grünfeld, Moscow

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1.d4 ¤f6 2.c4 g6 3.¤c3 d5 4.¤f3 ¥g7 5.£b3 dxc4 6.£xc4 0–0 7.e4 ¤c6 8.¥e2 e5 9.d5 ¤d4 10.¤xd4 exd4 11.£xd4 c6 12.d6

In his book Understanding the Grünfeld , GM Jonathan Rowson already gave 7...¤c6 as a reasonable alternative

to the sharp 7...a6 and 7...¤a6 against the Russian System (5.£b3). Since this masterwork was published in

1999, the variations are a bit outdated, which explains why after 8.¥e2 only the main move 8...¥g4 was covered.

This is also the main line in the recent book The Safest Grünfeld by Delchev & Agrest. However, they also

give a tricky alternative: undermining the centre immediately with 8...e5, which involves a pawn sacrifice.The

diagram position was reached two times this week, while in an earlier high-profile game Black failed to equalize

with 12...¤d5. In Morozevich-Vachier Lagrave Black instead opted for 12...¦e8 (preparing ...¤xe4), but after

13.£d3! never really came close to equality. Three days later Black revealed the interesting new idea 12...¤d7!?

in Gordon-Hunt, also given by Delchev & Agrest. In that game, after 13.£e3 Black was able to regain his pawn

with 13...¥e5 when he is doing fine from a strategic point of view. Some later inaccuracies, however, got him into

serious trouble. For the moment Black seems to be fine after 8...e5.

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ChessVibes OPENINGS what’s hot and what’s not?

No. 135, August 3, 2011

IT'S YOUR MOVE

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LAST WEEK'S SOLUTIONS

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Nabaty-Vitiugov, World Team Championship (Ningbo) 2011

In the Advance Variation of the Caro-Kann, White's aggressive intentions often backfire in the long run. However,

a tactical sequence sometimes ends the game abruptly: 9...cxd4! 10.£xd4 10.¥xd4? isn ’ t possible, because of

10...¤xf4. 10...¤c6 11.£d2 d4! 12.¥xd4 ¤xd4 13.£xd4 ¥c6 14.£f2 There ’ s no escape for White: 14.£xd8+

¦xd8 15.¦g1 ¥c5 and the ¦ is trapped. 14...¥xh1 15.¤xh1 ¥b4 and Black quickly decided the game in his favor:

16.¥b5+ ¢f8 17.¤g3 £a5 18.0–0–0 ¥xc3 19.£c5+ ¢g8 20.bxc3 a6 21.¤h5 £xb5 22.£c7 h6 23.¦d7 ¦f8 24.f5

¤xe5 0–1

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L'Ami-Milov, Open Dutch Championship (Dieren) 2011

Black seems to have quite an annoying initiative on the queenside, but White should ignore this and start his

own play through the centre: 24.d5! cxb2 Black should have created a dangerous passed pawn with 24...c2 and

then followed up with 25.¦d4 exd5 26.e6!? (26.¦xd5) 26...fxe6 27.¤xe6 giving up his £ with 27...£xe6! 28.¥xd5

£xd5 29.¦xd5 since after 29...¤c5 30.¥f4 he wins back the queen with 30...¤b3 31.¥xc7 ¤xc1 32.¦xc1 ¦f3 with

counterplay. Obviously this isn ’ t trivial stuff. 25.£xb2 ¥c3 26.£b3 ¥xa1 27.dxe6 £e7 28.exf7+ ¢h8 29.¤xg6+

hxg6 30.¦xa1 £xe5 31.¦a4 Now White ’ s fantastic remaining pieces quickly secured the win: 31...¦cxf7 32.¦h4+

¢g8 33.¥d5 £a1+ 34.¢g2 £xa5 35.£xb7 ¤c7 36.¥c4 £e5 37.¥f4 £f6 38.£xc7 g5 39.¦g4 gxf4 40.¦xf4 £g6

41.¥xf7+ ¦xf7 42.£b8+ 1–0

www.chessvibes.com/openings

ChessVibes Openings is a weekly PDF magazine that covers the latest news on chess openings. Which openings are hot in top

level chess? Which are not? Editors IM Merijn van Delft & IM Robert Ris keep you updated once a week! Why not subscribe

for € 28 a year (that ’ s less than € 0.60 per issue!). More info can be found at ChessVibes.com/openings .

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