1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. f1e2  6... e7e6  7. c1e3  7... f8e7  Black often delays this move in these Sicilians, trying to get some space  and play on the opposite wing first (or in the center.) 8. g2g4 A sharp  attacking continuation against the Scheveningen in the spirit of the Keres Attack.. 8... b7b5 A very risky move that the world champion executed  after more than 12 minutes spent on his clock. The last time this was  tried was back in 2016. 9. g4g5 Esipenko, in turn, plays quickly and confidently. 9... f6d7  10. a2a3 Played without any hesitation. It is far more important to  stabilize the center than to care for the g5-pawn. White is often  sacrificing it anyway whenever the opponent castles kingside, for  instance. 10... e7g5 Again hesitation. But what else? 11. d1d2 