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.
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..