Surprisingly, this was played after a deep thought.
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. f1b5  3... b8d7  4. e1g1  4... a7a6  5. b5d3 Dubov gave this line a try earlier this year, and this was certainly noticed by Saric. 5... g8f6  6. c2c3  6... b7b5  7. a2a4  7... c8b7  8. a4b5  8... a6b5  9. a1a8  9... d8a8  10. b1a3 Trademark Dubov. All of this has been player earlier and White's last move initiates super-sharp complications.