Filipino Grandmaster (GM) Wesley So drew his fifth-round game with Chinese GM Hou Yifan to stay in contention in the 2015 Tata Steel Chess Tournament being held in Wijk aan Zee, Netherlands.
The game of So and Hou ended in a draw after 66 moves in the tournament sanctioned by the International Chess Federation.
So stayed in fourth with three points on one win and four draws. Also in the group of three-pointers are GM Fabiano Caruana of Italy, reigning world champion GM Magnus Carlsen of Norway and GM Anish Giri of the Netherlands.
GM Vasil Ivanchuk of Ukraine is still on top with four points. He also drew his fifth-round game with GM Ding Liren of China.
Liren joined GM Radoslaw Wojtaszek of Poland in the second place with 3.5 points each.
GM Teimour Radjabov of Azerbaijan and GM Maxime Vachier-Lagrave of France are in eighth with 2.5 apiece followed by GM Ivan Saric of Croatia in 10th (2.0); GM Loek Van Wely of the Netherlands, defending champion GM Levon Aronian of Armenia and Hou in 11th (1.5); and GM Baadur Jobava of Georgia in 14th (0.5).
In other fifth-round matches, Carlsen outplayed Aronian, Giri trounced Jobava, and Radjabov defeated Saric, and Vachier-Lagrave and Van Wely agreed to a draw
The 21-year-old So, who represents the United States Chess Federation, faces Jobava in the sixth round.
Also scheduled are the matches of Caruana and Carlsen, Hou and Wojtaszek, Ivanchuk and Saric, Van Wely and Aronian, Radjabov and Giri, and Vachier-Lagrave and Ding.