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Viswanathan Anand beat Jan Smeets in a very interesting Ruy Lopez Breyer Variation. For most part the game was balanced even after Smeets left himself only 2 or 3 minutes for moves 31-40. After surviving this it looked like the game might end in repetition but instead World Champion Anand sacrificed the exchange which was not necessarily advantageous, indeed the game was probably still just level. However he was rewarded by more provarication from his opponent. Smeets is rightly famous for his opening preparation but it is surely time for him to revisit his clock handling. This time in time trouble going up to move 60 he played the losing 57.g3 and the game was finished just on move 65. One can't help feeling that Anand factored in this weakness into the decision to sacrifice the exchange. This result took Anand into the lead.

Smeets,Jan - Anand,Viswanathan [C95]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 d6 8.c3 0-0 9.h3 Nb8 10.d4 Nbd7 11.Nbd2 Bb7 12.Bc2 Re8 13.Nf1 Bf8 14.Bg5 h6 15.Bh4 c5

[15...g6 looks like the common.; 15...Qb8 1/2-1/2 Sadvakasov,D (2595)-Sasikiran,K (2679)/Skanderborg DEN 2003/The Week in Chess 466 (38)]

16.dxe5

[16.d5 1/2-1/2 Wong Meng Leong (2245)-Matsuo,T/Manila 1992/TD (70); 16.a4]

16...dxe5 17.a4

[17.N3h2 Finally this seems to be new.]

17...c4 18.N3h2 Re6 19.Qf3 Qb6 20.Ng4 Be7 21.Nxf6+ Bxf6 22.Bg3 Bg5 23.Ne3 Bxe3 24.Qxe3 Qxe3 25.Rxe3 Nc5 26.f3 Rd8 27.Re2 Bc6 28.axb5 Bxb5 29.Bf2 Nd3 30.Rd2 Rc8

Smeets was down to 2 minutes 30 seconds to reach move 40.

31.Bb1 Rd6 32.Be3 Rcc6 33.Bxd3 cxd3 34.Kf2 Rd7 35.Rdd1 Rb7 36.Ra5 f6 37.Ke1 Bc4 38.b4 Bb5 39.Kd2 h5 40.Bc5 Kf7

White has successfully made move 40 despite desperate time pressure.

41.Rc1 Bc4 42.Be3 Bb5 43.Bc5 Rxc5!?

Anand decides a draw isn't good enough for him and finds a complicated exchange sacrifice which isn't without risk.

44.bxc5 Bc4 45.Rd1 Rb2+ 46.Kc1 Rc2+ 47.Kb1 Ke7

Black has to be very careful he controls the white c-pawn.

48.c6?!

[48.Ra4 Bb3 (48...Rxc3 49.Rb4 g6 50.Rb7+; 48...Bb5 49.Rb4 Rxc3 50.Rc1 Rxc1+ 51.Kxc1 Kd7) 49.Ra3 Bc4 50.Ra4]

48...Kd8 49.Ra4 Bb5 50.Ra2 Kc7 51.c4 Rxc4 52.Rc1 Rd4 53.Rd2 Ba4 54.Rc5 Bc2+ 55.Kb2 Rd6 56.Kc3

[56.g4]

56...h4 57.g3?

Finally white cracks. The idea is to open the kingside.

57...hxg3 58.h4

[58.Rg2 d2 59.Rxd2 Rxd2 60.Kxd2 g2 Maybe this is what Smeets missed.]

58...g6 59.Rd5 Rxc6+ 60.Kb2 Rb6+ 61.Kc3 Rb3+ 62.Kc4 Rb1 63.Rg2 Bb3+ 64.Kxd3 Bxd5 65.exd5 Rb3+!

A final precise move that forces immediate resignation.

0-1

If two players reach first time control after around 45 minutes then you can be assured that you have home preparation from them. Alexei Shirov's favourite defence the Ruy Lopez (ChessBase calls it the Archangelsk and Moeller Defence, I don't know what the exact accepted term is for this opening) saw him blunder horribly in round 1 against Smeets. Today Nepomniachtchi repeated it and both players sped to an ending where Shirov had an unassailable fortress. I think we can assume the hair-raising tactics had been checked using a computer beforehand. 79 moves were played and they were still by far and away the first to finish in the A-Group. Put this in the theoretically important box.

Nepomniachtchi,Ian - Shirov,Alexei [C78]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 b5 6.Bb3 Bc5 7.a4 Rb8 8.c3 d6 9.d4 Bb6 10.Na3 Bg4 11.axb5 axb5 12.Nxb5 0-0 13.Re1 Bxf3 14.gxf3 Nh5 15.Kh1 Qf6 16.Rg1 exd4 17.Bg5 Qe5 18.Bd5 dxc3 19.Bxc6 cxb2 20.Rb1 Bxf2 21.Rg2 Rb6 22.Bd7

Smeets played this against Shirov in Round 1 and Shirov had a disaster. It turns out it might be a suggestion that Shirov made in one of his ChessBase videos. This lends support to the idea that Shirov just forgot his preparation. This doesn't appear to be the case today.

22...Bc5 23.Qc2

[23.Na7 Ra8 24.Nc6 Rxc6 25.Bxc6 1-0 Smeets,J (2662)-Shirov,A (2722)/Wijk aan Zee NED 2011/The Week in Chess 845]

23...h6 24.Bxh6 Qf6 25.Bxg7

Only in preparing during this tournament did Shirov notice that this was a dangerous idea.

25...Nxg7 26.Nxc7 Qxf3 27.Nd5 Rb3 28.Ba4 Rb7 29.Bc6 Rb3 30.Qd2 Be3 31.Nxe3 Qxe3 32.Qxd6 Rc3!

This move isn't given as strongest by the computer but in preparing the line Shirov noticed with his "human eye" (in an audio interview with ChessVibes) that it leads to a fortress that is easy to hold.

33.Rbg1 Qxg1+ 34.Rxg1 Rc1 35.Qg3 Rxg1+ 36.Qxg1 Rc8 37.Qb6 Rxc6 38.Qxb2 Rg6 39.Qb8+ Kh7 40.Qb7 f5

I see little point in analysing this game up to here, I'm 99% certain both players will have had this on their boards before play as they only took about 45 minutes to get here. Shirov didn't take too long in making this commital looking move either. It blocks the b1-h7 checking diagonal. I'm pretty certain that Shirov had prepared this fortress and is no difficulty whatsoever.

41.e5

[41.exf5 Rf6 42.Kg2 Rxf5 is totally drawn as well.]

41...Re6 42.Qd5 Rg6 43.Qf3 Re6 44.Qf4 Rg6 45.h3 Kg8 46.Kh2 Kh7 47.Qc4 Re6 48.Qd5 Rg6 49.Qd4 Kg8 50.Qc4+ Kh7 51.Qc7 Kg8 52.h4 Kh7 53.Kh3 Kh6 54.Qd7 Kh7 55.Qf7 Re6 56.Qc7 Rg6 57.Qb8 Nh5 58.Qa7+ Ng7 59.Qe3 Rh6 60.Kg3 Rg6+ 61.Kh3 Rh6 62.Qd3 Re6 63.Qd5 Rg6 64.Qb5 Kh6 65.Qb3 Kh7 66.Qd5 Ne6 67.Kh2 Ng7 68.Qb5 Kh6 69.Qb3 Kh7 70.Qd5 Rg4 71.h5 Nxh5 72.Qf7+ Ng7 73.e6 Re4 74.e7 Kh6 75.Kg2 Rg4+ 76.Kf2 Re4 77.Kf3 Kh7 78.Qf6 Kg8 79.Qf8+

Black will volley with his king for as long as white wants to play on. There is no progress to be made.

1/2-1/2

Levon Aronian drew as black against Vladimir Kramnik in an Exchange Slav. Often things can be a little dull in this opening but instead of playing for solid equality Aronian gave up two pawns for a very active position taking advantage of Kramnik's lagging development. The final position was probably level but it would have been nice to have seen more moves. However this was a very attractive little game.

Kramnik,Vladimir - Aronian,Levon [D10]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.d4 d5 2.c4 c6 3.Nc3 Nf6 4.cxd5 cxd5 5.Bf4 Nc6 6.e3 Bf5 7.Rc1 e6 8.Qb3 Qb6 9.Qxb6 axb6 10.Bb5

[10.a3 1/2-1/2 Karttunen,M (2427)-Haznedaroglu,K (2468)/Crete GRE 2007/The Week in Chess 679 (50)]

10...Be7

[10...Bb4 1-0 Miladinovic,I (2555)-Sideris,T (2000)/Chalkida 1998/EXT 2004 (46)]

11.f3 0-0 12.a3 Rfc8 13.Nge2 Na5 14.Na4

[14.g4 Bg6]

14...Rxc1+ 15.Nxc1 Nc4!

The start of some really dynamic play rather than some defensive moves.

16.Bxc4 dxc4 17.Nxb6 Ra6 18.Nxc4 Nd5

White is two pawns up but just in this position white is nowhere near consolidating.

19.Ne5 Rb6 20.Ned3 Bxd3 21.Nxd3 Bxa3!

[21...Nxf4 is also very possible.]

22.Bg3 Bxb2 23.Ke2 Rc6 24.Bf2 Rc2+ 25.Kd1 Rxf2 26.Nxf2

and the players agreed a draw. I would have liked to see some more moves. Objectively the position probably is just level.

[26.Nxf2 Nxe3+ 27.Ke2 Nxg2]

1/2-1/2

Alexander Grischuk produced a novelty where he sacrificed an exchange as black against Wang Hao. However later he started to play imprecisely. Wang didn't allow Grischuk to show much compensation and eventually Grischuk's position imploded. A nice game from Wang but it does leave one wondering what Grischuk was hoping for.

Wang Hao - Grischuk,Alexander [E63]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 0-0 5.Nc3 d6 6.Nf3 Nc6 7.0-0 a6 8.b3 Rb8 9.Nd5 Bg4 10.Bb2 Nxd5 11.cxd5 Nb4 12.e4 f5 13.h3 fxe4 14.hxg4 exf3 15.Bxf3 Qe8 16.g5 Rxf3!?

I assume this was prepared by Grischuk, he should have enough compensation for the exchange.

[16...Kh8 1/2-1/2 Rotstein,A (2548)-Gross,D (2491)/Jenbach AUT 2008/The Week in Chess 690 (71)]

17.Qxf3 Qf7 18.Qe2

If white wants to do anything he has to keep queens on.

18...Rf8 19.f4 Nxd5?

Here Wang suggested that h6 is strongest in an interview with ChessVibes.

20.Rf2 h6?

Fearing penetration down the h-file with pressure on h7, but disaster happens down here anyhow. 20...h5 was much the better move.

21.Raf1 c6 22.g4 e6 23.Qe4 hxg5 24.fxg5 Qe8 25.Rxf8+ Bxf8 26.Re1 Kf7 27.Kg2 b5 28.a4 b4 29.Bc1 a5 30.Bf4 Qd7 31.Bg3 Be7?

31...Qe8 seems forced but is hardly an advertisement for black's position. Black was in desperate time trouble by now anyway.

32.Rf1+! Kg7

33.Be5+!

Winning out of hand.

33...dxe5 34.Qxe5+ Kg8 35.Rh1 Nf4+ 36.Kf1

[36.Kf1 Nh5 37.gxh5 Qd5 Black needs the queens off to avoid getting mated but then white just has a trivial endgame win. 38.Qxd5 cxd5 39.hxg6 is winning.]

1-0

Maxime Vachier-Lagrave faced the Petroff Defence from Anish Giri and a nice draw ensued where black exchanged enough pieces off just in time to stop himself losing to a kingside attack.

Vachier-Lagrave,Maxime - Giri,Anish [C42]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nf3 Nxe4 5.Nc3 Nxc3 6.dxc3 Be7 7.Be3 Nc6 8.Qd2 Be6 9.Ng5 Bxg5 10.Bxg5 Qd7 11.Be2 0-0

[11...a6 1-0 Panchanathan,M (2533)-Haessel,D (2243)/Edmonton CAN 2010/The Week in Chess 821 (44)]

12.0-0-0

Hardly an attempt at a refutation of the Petroff, there are a few pluses here and that will at least lead to a game.

12...f6 13.Be3 Ne7 14.b3 Rfd8 15.Rde1 Nd5 16.Bf3 c6 17.Bd4 Nc7 18.g4 Nb5 19.Rhg1 Nxd4 20.Qxd4 Re8 21.Kb2 a6 22.h4 Rad8 23.h5 h6 24.Be4 c5 25.Qd1 d5 26.Bg6 Bf7 27.f4 Bxg6 28.hxg6 d4 29.c4 Rxe1 30.Rxe1 Re8 31.g5 fxg5 32.fxg5 Rxe1 33.Qxe1 Qc6!

Amusingly enough this is the only move.

34.gxh6 gxh6 35.Qe7 Qxg6 36.Qxb7 Qd6

Black protects all his pawns, neither side can make progress.

37.Qc8+ Kg7 38.Qg4+ Kf7 39.Qf5+ 1/2-1/2

Hikaru Nakamura played a strategically risky game against Ruslan Ponomariov. Ponomariov dealt with the problems Nakamura set very well and my feeling without much concrete analyisis, is that Ponomariov should have found the way to an advantage. In the end the players agreed a draw just after the first time control in a level position where there was still a huge amount of play for both sides.

Nakamura,Hikaru - Ponomariov,Ruslan [E21]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3 c5 5.g3 Nc6 6.Bg2 Ne4 7.Bd2 Nxd2 8.Qxd2 cxd4 9.Nxd4 Qb6 10.Nc2 Be7 11.0-0 0-0 12.Rab1 d6 13.b4

[13.Rfd1 Rd8 14.Ne3 a6 15.b4 Qa7 16.a4 Bd7 17.a5 Ne5 18.b5 axb5 19.Nxb5 Qxa5 20.Qxa5 Rxa5 21.Nxd6 Ba4 22.Nxb7 Bxd1 23.Nxd8 1/2-1/2 Sasikiran,K (2669)-Macieja,B (2612)/Warsaw POL 2009/The Week in Chess 768]

13...Rd8 14.Kh1 Bd7 15.Ne3 Bf8 16.b5 Na5 17.f4

White has certainly taken an aggressive approach. Black has few weaknesses and two bishops. In return white as more active play.

17...Qc7 18.Rfc1 Rac8 19.Ne4 b6

[19...f5!?]

20.Rc2 h6 21.Rf1 f5 22.Nf2 g6 23.Nd3 Bg7 24.Rfc1 Be8 25.Nd1 Qe7 26.Qb4 Rc7 27.e4 fxe4 28.Bxe4 Qf6 29.Bf3 Bf7 30.N1f2 Qd4 31.Ne5 Bxe5 32.fxe5 Qxe5 33.Ng4 Qg7 34.Rd1 h5 35.Nf2 Qe5!?

[35...d5!? looks like a try for the advantage]

36.Re1 Qd4 37.Rd1 Qe5 38.Re1 Qf5 39.Be4 Qc5 40.Qb2 Qg5 41.Bd3 e5 42.Ne4 Qe7 43.Rf1 Kg7

and the players agreed a draw in a position where white has some compensation for the pawn down. I would liked to have seen more moves.

1/2-1/2

Magnus Carlsen got little or nothing out of his quiet Ruy Lopez against Erwin L'Ami. He even gave up a pawn but got a middlegame come ending that retained its complexity over a huge number of moves. L'Ami was equal to the defensive task until he blundered on the final move before second time control. But it didn't end there. An inaccuracy by Carlsen made life difficult and another one threw away the win and they entered a rook and knight vs rook ending. These are hardish to defend at the best of times but after such an extended defence it shouldn't come as a surprise that L'Ami made a final blunder and lost instantly. This was a really interesting game of chess.

Carlsen,Magnus - L'Ami,Erwin [C77]
73rd Tata Steel GMA Wijk aan Zee NED (5), 13.01.2011

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.d3 d6 6.c3 g6 7.0-0 Bg7 8.Re1 0-0 9.Nbd2 Kh8

[9...b5 1-0 Tondivar,B (2315)-Van Gool,H (2085)/Ensched NED 1994 (71)]

10.Nf1 Ng8 11.Bg5 f6 12.Bh4 Qe8 13.d4 Bd7 14.d5 Nd8 15.Bxd7 Qxd7 16.N3d2 Nf7 17.f3 f5 18.c4 a5 19.Bf2 Nf6 20.c5 fxe4 21.Nxe4 dxc5 22.Nxc5 Qxd5 23.Qxd5 Nxd5 24.Rad1 c6

There were many, many alternatives for white leading up to this position where black is a pawn up. Carlsen surely can't be better here but perhaps it was the complexity that attracted him.

25.Ne3 Rfd8 26.a4 Nxe3 27.Bxe3 b5 28.b3 bxa4 29.bxa4 Rd5 30.Ne6 Bf8 31.Nc7 Rxd1 32.Rxd1 Rd8 33.Rc1 Rd3 34.Bb6 Bb4 35.Rxc6 Ra3 36.Ne6 h5 37.f4!

This is a very difficult move to meet, even though objectively the position might still be close to equal.

37...Rxa4 38.fxe5 Ra1+ 39.Kf2 Re1 40.Bd4 Kg8 41.Rc8+ Kh7 42.Nf8+

[42.h4]

42...Kh6 43.Nd7 Rd1 44.Be3+ Kg7 45.Rc7 a4?!

[45...g5 46.Nc5 Kf8 might be an alternative.]

46.e6

[46.Nc5 Kf8 (46...a3 47.e6 a2 48.Nb3 Rb1 49.Na1!!) 47.e6 Nd6 48.Nxa4]

46...Nd6 47.h4 a3 48.Ra7 g5!?

Freeing some space for his king. There are later stalemate traps with the king on h4, whether that was on his mind I don't know. Still all in all a brave decision.

49.hxg5 Kg6 50.e7 a2 51.Nf8+ Kf5 52.Rxa2 Ne4+ 53.Kf3 Rf1+ 54.Ke2 Ng3+ 55.Kd3 Bxe7 56.Ra5+ Kg4 57.Ra4+ Kf5 58.Ra5+ Kg4

Repeating to get closer to the time control as Carlsen had used up most of his.

59.Ne6 Rd1+ 60.Kc2 Rd7?

[60...Rd6]

61.g6 Nf1

62.Bc1?!

[62.Bg5! For a study like finish. 62...Bb4 63.Rd5 Rxd5 64.g7 Bd2 65.Bxd2 Rxd2+ 66.Kc3 Kg3 67.g8Q+; 62.Bd4 and this looks like a quick win that was easy enough to spot. 62...Rb7 63.Ra8 Bg5 64.g7 Rxg7 65.Nxg7]

62...Bf6 63.g7 Bxg7 64.Rg5+ Kh4 65.Nxg7 Ne3+ 66.Bxe3 Rd2+

Playing for stalemate traps.

67.Kc1 Rd1+ 68.Kb2 Rd2+ 69.Kc3 Rd3+ 70.Kc4 Rxe3 71.Rxh5+ Kg4 72.Rh2?

Finally throwing away the win.

[72.Rh4+ Kg5 73.Rh8 Kg6 74.Ne8 Re2 75.Kd4 Kf7 76.g3]

72...Re7 73.Nh5 Re5 74.Nf6+ Kg3 75.Rh7 Kxg2

These Rook vs Knight endings are drawn with best play. But L'Ami has been put through the ringer today and they do require continued vigilance.

76.Kd4 Re1 77.Ng4 Kg3 78.Ne3 Ra1 79.Rg7+ Kf4 80.Rf7+ Kg3 81.Nc2 Ra4+ 82.Ke3 Kg4 83.Nd4 Kg5 84.Ke4 Kg6 85.Rf1 Ra5 86.Nc6 Ra4+ 87.Ke5 Kg5 88.Rg1+ Rg4 89.Ra1 Rg3 90.Re1 Rg2 91.Ne7 Kg4 92.Nf5 Ra2 93.Rg1+ Kf3??

[93...Kh5]

94.Nh4+

and with one mistake L'Ami loses after all.

1-0

73rd Tata Steel GMA Wijk aan Zee (NED), 14-30 i 2011																cat. XX (2740)
					1	2	3	4	5	6	7	8	9	0	1	2	3	4
1.	Anand, Viswanathan	g	IND	2810	*	.	.	.	.	½	1	.	.	½	1	1	.	.	4	2949
2.	Nakamura, Hikaru	g	USA	2751	.	*	½	½	.	.	½	.	.	.	.	.	1	1	3½	2895
3.	Aronian, Levon	g	ARM	2805	.	½	*	.	½	½	.	½	1	.	.	.	.	.	3	2831
4.	Giri, Anish	g	NED	2686	.	½	.	*	½	.	.	1	.	½	.	½	.	.	3	2786
5.	Vachier-Lagrave, Maxime	g	FRA	2715	.	.	½	½	*	.	.	.	.	.	½	.	½	1	3	2815
6.	Kramnik, Vladimir	g	RUS	2784	½	.	½	.	.	*	.	.	½	.	½	.	½	.	2½	2770
7.	Ponomariov, Ruslan	g	UKR	2744	0	½	.	.	.	.	*	½	.	½	.	1	.	.	2½	2733
8.	Carlsen, Magnus	g	NOR	2814	.	.	½	0	.	.	½	*	.	1	.	.	.	½	2½	2717
9.	Nepomniachtchi, Ian	g	RUS	2733	.	.	0	.	.	½	.	.	*	.	1	.	½	½	2½	2763
10.	L'Ami, Erwin	g	NED	2628	½	.	.	½	.	.	½	0	.	*	.	½	.	.	2	2671
11.	Wang, Hao	g	CHN	2731	0	.	.	.	½	½	.	.	0	.	*	.	1	.	2	2691
12.	Smeets, Jan	g	NED	2662	0	.	.	½	.	.	0	.	.	½	.	*	.	1	2	2646
13.	Grischuk, Alexander	g	RUS	2773	.	0	.	.	½	½	.	.	½	.	0	.	*	.	1½	2593
14.	Shirov, Alexei	g	ESP	2722	.	0	.	.	0	.	.	½	½	.	.	0	.	*	1	2495

Round 5 (January 20, 2011)
Nakamura, Hikaru	- Ponomariov, Ruslan	½-½	43	E21	Nimzo Indian 4.Nf3
Vachier-Lagrave, Maxime	- Giri, Anish	½-½	39	C42	Petroff's Defence
Kramnik, Vladimir	- Aronian, Levon	½-½	26	D10	Slav Defence
Carlsen, Magnus	- L'Ami, Erwin	1-0	94	C77	Ruy Lopez Anderssen
Nepomniachtchi, Ian	- Shirov, Alexei	½-½	79	C78	Ruy Lopez Moeller Defence
Wang, Hao	- Grischuk, Alexander	1-0	36	E63	King's Indian 6...Nc6
Smeets, Jan	- Anand, Viswanathan	0-1	65	C95	Ruy Lopez Breyer

Leader Luke McShane was held by one of the favourites Laurent Fressinet allowing Zahar Efimenko to move within half a point by defeating David Navara.

73rd Tata Steel GMB Wijk aan Zee (NED), 14-30 i 2011																cat. XVII (2659)
					1	2	3	4	5	6	7	8	9	0	1	2	3	4
1.	McShane, Luke J	g	ENG	2664	*	.	½	.	.	.	.	½	.	1	1	1	.	.	4	2864
2.	Efimenko, Zahar	g	UKR	2701	.	*	½	½	.	.	1	.	1	.	.	.	.	½	3½	2826
3.	Fressinet, Laurent	g	FRA	2707	½	½	*	.	.	.	.	½	.	½	.	.	.	1	3	2719
4.	So, Wesley	g	PHI	2673	.	½	.	*	½	.	.	.	½	.	.	.	½	1	3	2738
5.	Sargissian, Gabriel	g	ARM	2667	.	.	.	½	*	.	½	.	.	.	½	½	.	1	3	2717
6.	Wojtaszek, Radoslaw	g	POL	2726	.	.	.	.	.	*	0	1	.	½	½	1	.	.	3	2696
7.	Navara, David	g	CZE	2708	.	0	.	.	½	1	*	.	½	.	.	.	½	.	2½	2681
8.	Nijboer, Friso	g	NED	2584	½	.	½	.	.	0	.	*	.	½	.	½	.	.	2	2604
9.	Hammer, Jon Ludvig	g	NOR	2647	.	0	.	½	.	.	½	.	*	.	1	.	.	0	2	2584
10.	Tkachiev, Vladislav	g	FRA	2636	0	.	½	.	.	½	.	½	.	*	.	.	½	.	2	2597
11.	Spoelman, Wouter	g	NED	2547	0	.	.	.	½	½	.	.	0	.	*	.	1	.	2	2601
12.	Li, Chao b	g	CHN	2649	0	.	.	.	½	0	.	½	.	.	.	*	1	.	2	2589
13.	Le, Quang Liem	g	VIE	2664	.	.	.	½	.	.	½	.	.	½	0	0	*	.	1½	2493
14.	Ganguly, Surya Shekhar	g	IND	2651	.	½	0	0	0	.	.	.	1	.	.	.	.	*	1½	2530

Round 5 (January 20, 2011)
McShane, Luke J	- Fressinet, Laurent	½-½	37	A07	Barcza System
Efimenko, Zahar	- Navara, David	1-0	35	B84	Sicilian Scheveningen
Sargissian, Gabriel	- Li, Chao b	½-½	42	D85	Gruenfeld Defence
Wojtaszek, Radoslaw	- Nijboer, Friso	1-0	44	E97	King's Indian Classical
Hammer, Jon Ludvig	- Spoelman, Wouter	1-0	36	D45	Anti-Meran Variations
Le, Quang Liem	- Tkachiev, Vladislav	½-½	35	D55	Queens Gambit Old Lasker Variation
Ganguly, Surya Shekhar	- So, Wesley	0-1	30	C11	French Defence

The first decisive game of the day occurred in the C-Group saw 14-year-old GM Illya Nyzhnyk beat Roeland Pruijssers with very little difficulty at all. The final game to finish in the group was the key one. Daniele Vocaturo beat Mark Bluvstein to lead on 4.5/5 half a point clear of Nyzhnyk.

Nyzhnyk,Illya - Pruijssers,Roeland [E67]
73rd Tata Steel GMC Wijk aan Zee NED (5), 13.01.2011

1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 0-0 5.c4 d6 6.Nc3 Nbd7 7.0-0 e5 8.e3 Re8 9.a4 c6 10.a5 e4 11.Ng5 d5 12.cxd5 cxd5 13.f3 h6 14.Nh3N exf3

[14...Nf8 1/2-1/2 Jesenski,T (2308)-Martic,I (2313)/Vrnjacka Banja SRB 2010/The Week in Chess 825 (55)]

15.Qxf3 Nf8 16.Nf4 Bg4 17.Qf2 Ne4!?

If black wants to play this way he has to be prepared to give away a pawn.

[17...Be6]

18.Qc2 Rc8 19.Qb3

[19.Nfxd5 Nd6 (19...Qxd5 20.Qxe4 Rxe4 21.Nxd5) ]

19...Ne6 20.Nfxd5 Nxd4?

[20...Nd6 Avoids losing straight away and maybe he has enough activity for the pawn. 21.Bd2 Bf5 22.Ra4 h5 23.h4 Bd3 24.Rf2]

21.exd4 Bxd4+ 22.Kh1 Nf2+ 23.Rxf2 Bxf2 24.Bxh6 Rc6 25.Qb4 Bf5 26.Qf4 Re1+ 27.Rxe1 Bxe1 28.Bg5 f6 29.Nxf6+ Rxf6 30.Nd5 1-0

73rd Tata Steel GMC Wijk aan Zee (NED), 14-30 i 2011																cat. XI (2507)
					1	2	3	4	5	6	7	8	9	0	1	2	3	4
1.	Vocaturo, Daniele	g	ITA	2570	*	.	.	.	1	½	.	.	.	1	.	1	.	1	4½	2878
2.	Nyzhnyk, Illya	g	UKR	2530	.	*	.	.	½	.	.	.	1	1	.	.	1	½	4	2747
3.	Lahno, Kateryna	g	UKR	2518	.	.	*	0	½	.	1	.	1	.	.	.	1	.	3½	2617
4.	Van Der Werf, Mark	m	NED	2439	.	.	1	*	.	½	0	½	.	.	1	.	.	.	3	2588
5.	Bluvshtein, Mark	g	CAN	2590	0	½	½	.	*	.	.	.	.	.	1	1	.	.	3	2592
6.	Bok, Benjamin	m	NED	2453	½	.	.	½	.	*	½	0	.	1	.	.	.	.	2½	2543
7.	Siebrecht, Sebastian	g	GER	2439	.	.	0	1	.	½	*	½	.	.	.	.	½	.	2½	2504
8.	Ivanisevic, Ivan	g	SRB	2630	.	.	.	½	.	1	½	*	0	.	.	.	½	.	2½	2441
9.	Tania, Sachdev	m	IND	2391	.	0	0	.	.	.	.	1	*	.	1	½	.	.	2½	2532
10.	Kazhgaleyev, Murtas	g	KAZ	2637	0	0	.	.	.	0	.	.	.	*	.	1	.	1	2	2414
11.	Swiercz, Dariusz	g	POL	2540	.	.	.	0	0	.	.	.	0	.	*	.	1	1	2	2396
12.	Van Kampen, Robin	m	NED	2443	0	.	.	.	0	.	.	.	½	0	.	*	.	1	1½	2376
13.	Pruijssers, Roeland	m	NED	2484	.	0	0	.	.	.	½	½	.	.	0	.	*	.	1	2291
14.	De Jong, Jan-Willem	m	NED	2437	0	½	.	.	.	.	.	.	.	0	0	0	.	*	½	2178

Round 5 (January 20, 2011)
Vocaturo, Daniele	- Bluvshtein, Mark	1-0	73	C67	Ruy Lopez Berlin
Nyzhnyk, Illya	- Pruijssers, Roeland	1-0	30	E67	King's Indian Fianchetto
Lahno, Kateryna	- Siebrecht, Sebastian	1-0	43	C41	Philidor's Defence
Ivanisevic, Ivan	- Bok, Benjamin	1-0	45	A15	English counter King's Fianchetto
Kazhgaleyev, Murtas	- De Jong, Jan-Willem	1-0	61	D80	Gruenfeld 4.Bg5
Swiercz, Dariusz	- Van Der Werf, Mark	0-1	37	E41	Nimzo Indian Rubinstein
Van Kampen, Robin	- Tania, Sachdev	½-½	26	C10	French Rubinstein

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