Aronian,L (2805) - Nepomniachtchi,I (2733)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1 Be6 7.Qb3 c5 8.Qxb7 cxd4 9.exd4 Qb6 10.Qxa8 Nh5 11.c5 Qxb2 12.Bd2 Bxd4 13.Nf3 Nd7 14.Qxf8+ Kxf8 15.Nxd4 Nxc5 16.Rb1 Qa3 17.Be2 Nf4 18.O-O Nxe2+ 19.Ncxe2 Nd7 20.Rb7 Qa6 21.Nxe6+ Qxe6 22.Nd4 Qg4 23.Rc1 f6 24.Be3 Nb6 25.h3 Qe4 26.Rcc7 1-0

Ponomariov,R (2744) - Carlsen,M (2814)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.Nf3 Nf6 2.c4 b6 3.g3 c5 4.Bg2 Bb7 5.O-O e6 6.Nc3 d6 7.d4 cxd4 8.Nxd4 Bxg2 9.Kxg2 Qc7 10.Bg5 Nbd7 11.Qa4 Be7 12.Rfd1 O-O 13.Nc6 Bd8 14.b4 Rc8 15.b5 Ne5 16.Bf4 Be7 17.c5 Nxc6 18.cxd6 Qb7 19.bxc6 Rxc6 20.dxe7 Rxc3+ 21.Kg1 Re8 22.Be5 b5 23.Rab1 Rc5 24.Bd4 Rd5 25.Qxa7 Qxe7 26.Qxe7 Rxe7 27.Bc3 h6 28.Rxd5 Nxd5 29.Bd4 b4 30.e4 Nc3 31.Rxb4 Nxa2 32.Rc4 1/2-1/2

Grischuk,A (2773) - Kramnik,V (2784)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.Nf3 d5 2.c4 c6 3.e3 Nf6 4.Nc3 Nbd7 5.Qc2 e6 6.b3 Bd6 7.Bb2 O-O 8.Be2 Re8 9.O-O e5 10.cxd5 Nxd5 11.Ne4 Bc7 12.Ng3 Nf8 13.a3 a5 14.d4 Ng6 15.Bd3 exd4 16.Nxd4 Bg4 17.Bf5 Nf6 18.f3 Bh5 19.Rae1 Nf8 20.Nxh5 Nxh5 21.f4 Bb6 22.Bg4 Nf6 23.Bf3 Nd5 24.Bxd5 Qxd5 25.Nf5 f6 26.Rd1 Qe4 27.Qxe4 Rxe4 28.Rf3 g6 29.Nh6+ Kg7 30.Ng4 Kf7 31.Nh6+ Kg7 32.Ng4 Kf7 33.Nh6+ Ke7 34.Ng8+ Kf7 1/2-1/2

Giri,A (2686) - Nakamura,Hi (2751)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.d4 Nf6 2.c4 e6 3.g3 c5 4.Nf3 cxd4 5.Nxd4 Bb4+ 6.Nc3 Ne4 7.Qd3 Nxc3 8.bxc3 Be7 9.Nb5 Nc6 10.Bf4 e5 11.Bc1 O-O 12.Bg2 d6 13.Ba3 Qa5 14.O-O Rd8 15.Bb4 Qb6 16.a4 Na5 17.Rfd1 Be6 18.Bxa5 Qxa5 19.Bxb7 Rab8 20.Bd5 Rbc8 21.Qf3 Bxd5 22.Rxd5 Qa6 23.Qe4 Rc6 24.c5 Rxc5 25.Rxc5 dxc5 26.Qxe5 Qb7 27.Rb1 Bf6 28.Qf5 Qc6 29.Nxa7 Qxa4 30.Qxc5 Qa2 31.Re1 Qd2 32.Kf1 Bxc3 33.Rb1 Bd4 34.Qe7 Bxa7 35.Qxa7 Qd5 36.Kg1 Qa8 37.Qxa8 Rxa8 38.Rb5 f6 39.h4 Re8 40.Kf1 g6 41.g4 Re4 42.f3 Ra4 43.Rb8+ Kg7 44.Rb7+ Kg8 45.Kf2 Ra5 46.Kg3 h6 47.Rd7 h5 48.gxh5 Rxh5 49.e4 g5 50.hxg5 Rxg5+ 51.Kf4 Ra5 52.Rc7 Kf8 53.Rd7 Kg8 54.Rd5 Ra3 55.Kg4 Re3 56.Rd7 Kf8 57.Ra7 Kg8 58.f4 Rxe4 59.Kf5 Re8 60.Kg6 f5 61.Rg7+ Kh8 62.Rh7+ Kg8 63.Rg7+ Kh8 64.Rf7 Kg8 65.Rxf5 Re7 66.Rg5 Rf7 67.Kh6+ Kf8 68.f5 Rf6+ 69.Kh5 Kf7 1/2-1/2

Shirov,A (2722) - Vachier Lagrave,M (2715)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6 9.Be3 O-O 10.O-O Na5 11.Bd3 b6 12.Qd2 e5 13.Bh6 cxd4 14.cxd4 exd4 15.Rac1 Bb7 16.Bxg7 Kxg7 17.f4 Rc8 18.f5 Rxc1 19.Qxc1 Nc6 20.f6+ Kh8 21.Qg5 Qd6 22.Ng3 Rg8 23.Bc4 Ne5 24.Bb3 d3 25.h3 Ba6 26.Rf4 d2 27.Kh2 Qc5 28.h4 Nd3 29.e5 Nxf4 30.Ne4 Ne6 31.Bxe6 Qc6 32.Bxf7 d1=Q 0-1

L'Ami,E (2628) - Smeets,J (2662)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bg4 5.Qb3 Qb6 6.Nc3 e6 7.Nh4 Bh5 8.h3 Qxb3 9.axb3 Na6 10.g4 Nb4 11.Ke2 Bg6 12.Nxg6 hxg6 13.Bg2 Be7 14.Bd2 a5 15.Rhc1 b6 16.Na4 Nd7 17.cxd5 cxd5 18.Bf1 Bd6 19.Kf3 Ke7 20.Kg2 Rhb8 21.Nc3 Na6 22.Bxa6 Rxa6 23.Nb5 Raa8 24.Nxd6 Kxd6 25.b4 a4 26.b5 Nf6 27.Ra3 1/2-1/2

Anand,V (2810) - Wang Hao (2731)
73rd Tata Steel GMA (Wijk aan Zee NED), 01/18/2011
Round 4

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5 Nxd5 8.dxc5 Qa5 9.e4 Ne7 10.Be3 O-O 11.Qb3 Qc7 12.Bb5 Nec6 13.Ne2 Na5 14.Qb4 e5 15.O-O Be6 16.Nd4 exd4 17.cxd4 Nbc6 18.Qc3 Ne7 19.Rfd1 Rad8 20.Bf2 a6 21.Bg3 Qc8 22.Bf1 b6 23.Rab1 Nb3 24.Rxb3 Bxb3 25.Qxb3 bxc5 26.d5 Ng6 27.Qb6 f5 28.Bxa6 Qd7 29.Bb5 Qf7 30.exf5 Qxf5 31.Qxc5 Rc8 32.Qd4 Rfd8 33.a4 1-0