Already an opening novelty. Robson was clearly surprised by the last move and spent a long time on his reply.
1. d2d4  1... d7d5  2. c2c4  2... e7e6  3. b1c3  3... c7c6  4. e2e4 A sharp variation that is known as the \"Marshall Gambit.\" Considering that there's another gambit with the same name that is considered one of the best options for Black against the Ruy Lopez, it's safe to say that Frank really knew how to sac a pawn in the opening. 4... d5e4  5. c3e4  5... f8b4  6. c1d2 This is where the gambit really starts. A move like 6.Nc3 keeps material equal, but it's much less fun. 6... d8d4  7. d2b4  7... d4e4  8. g1e2  8... b8a6  9. b4f8 A pretty move that is well-known. 9... e4g6 Very rare. Arjun is an interesting player for the audience since he is always willing to take great risks in order to play for a win. He surely has a lot of analysis here. Both 10.Qd6 and 10.Nf4 are critical.