(Photo taken from the official site)
There were a few notable surprises already in the first round, for example, Kramnik drew against Halkias, Jobava lost to Khotenashvili and Najditsch lost to Ankit. Overall though the higher rated GMs managed to overpower their opponents.
Top results of the 1st round
1 GM Giri Anish 2776 0 1 – 0 0 GM Antipov Mikhail Al. 2520
2 GM Halkias Stelios 2519 0 ½ – ½ 0 GM Kramnik Vladimir 2760
3 GM Mamedyarov Shakhriyar 2757 0 1 – 0 0 GM Stefanova Antoaneta 2517
4 GM Gomez John Paul 2510 0 0 – 1 0 GM Vachier-Lagrave Maxime 2751
5 GM Ding Liren 2730 0 1 – 0 0 GM Al-Sayed Mohammed 2507
6 GM Harika Dronavalli 2505 0 0 – 1 0 GM Harikrishna P. 2725
7 GM Jobava Baadur 2722 0 0 – 1 0 GM Khotenashvili Bela 2504
8 IM Karthikeyan Murali 2497 0 0 – 1 0 GM Eljanov Pavel 2719
9 GM Naiditsch Arkadij 2719 0 0 – 1 0 GM Ankit R. Rajpara 2494
10 GM Carlsson Pontus 2492 0 0 – 1 0 GM Tomashevsky Evgeny 2714
Some games of the 1st round
Top pairings of the 2nd round
1 GM Mista Aleksander 2616 1 – 1 GM Giri Anish 2776
2 GM Ganguly Surya Shekhar 2615 1 – 1 GM Mamedyarov Shakhriyar 2757
3 GM Vachier-Lagrave Maxime 2751 1 – 1 GM Socko Bartosz 2614
4 GM Van Kampen Robin 2612 1 – 1 GM Ding Liren 2730
5 GM Harikrishna P. 2725 1 – 1 GM Ipatov Alexander 2608
6 GM Eljanov Pavel 2719 1 – 1 GM Duda Jan-Krzysztof 2599
7 GM Tomashevsky Evgeny 2714 1 – 1 GM Lenderman Aleksandr 2598
8 GM Anton Guijarro David 2607 1 – 1 GM Bu Xiangzhi 2707
9 GM Kryvoruchko Yuriy 2706 1 – 1 GM Hovhannisyan Robert 2591
10 GM Bogner Sebastian 2598 1 – 1 GM Yu Yangyi 2705