1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f8c5 The Arkhangelsk Variation, one of the favorite lines of the likes of Aronian, Caruana, Anand, and Shirov. 6. c2c3  6... b7b5  7. a4b3  7... d7d6  8. d2d4 The main direction. 8... c5b6  9. c1e3  9... e8g8  10. b1d2  10... h7h6  11. h2h3  11... f8e8 All of this has been seen before with Black planning to put the opponent's center under concrete pressure. 12. f1e1  12... e5d4 A very concrete approach, typical for the line. 13. c3d4  13... c6b4 Keymer went into the think tank from here and spent almost an hour on his next three moves. 14. d1e2 The first major thought by White. Dominguez deviates from a known top-game. 14... c7c5 Now it gets very messy since Keymer has no choice but to challenge the enemy center. 15. a2a3  15... c5c4  16. a3b4  16... c4b3  17. e2d3  17... f6e4 A temporary sacrifice and the center is at last ruined. 18. e3h6  18... c8f5  19. e1e4 Apparetly, an over-the-board novelty. 19... e8e4 I think Keymer chose right $1 Now the forcing line continues further. 20. d2e4  20... d6d5 