1. g1f3  1... g8f6  2. c2c4  2... e7e6  3. d2d4  3... d7d5  4. b1c3 The players reached a popular Queen's Gambit tabiya by a less common move order. The Mongolian first board opts for the Ragozin Defense out of many reasonable possibilities. 4... f8b4  5. c1g5  5... h7h6  6. g5h4 A clever choice by Carlsen. It was safe to assume that his young opponent was booked up in the main lines after 6.Bxf6 Qxf6, so the Norwegian deviates early. With this move, he tries to steer the game into less explored territories. 6... e8g8 Judging by the time spent on this move, it seems Batsuren was surprised by the world champion's move and decided to play it safe instead of going for the critical continuation.