1. e2e4  1... e7e5 Nakamura had secured the third place before the final round and  could not go any higher or lower. Thus came the novelty of the century: 2. e1e2 [This has been called the Bongcloud, although Carlsen thinks the  original Bongcloud is 1.f3 and 2.Kf2. - ed.] 2... g8f6  3. d2d3  3... d7d5  4. b1d2  4... b8c6 