1. e2e4  1... e7e5  2. b1c3 Armagedon games give this sensible  do-not-allow-the-Berlin option to White. 2... b8c6  3. g2g3 At the end of  the 1980s, the Russian GM Igor Glek made a name for this variation. The  constant success he had over-the-board with the line helped him make it  into the top 10 players in the world in his prime years. 3... f8c5  4. f1g2  4... g8f6  5. g1e2  5... d7d6  6. d2d3  6... a7a6  7. e1g1  7... c8e6  8. h2h3  8... h7h6 It is not obvious if this prophylaxis is needed. 9. g1h2 Dubov is ready for the key f2-f4 advance. 9... d6d5  10. e4d5  10... f6d5  11. f2f4 In time. 11... e5f4  12. g2d5 A fabulous novelty! It is reminiscent of the capture on d5 in the English opening after which the  black bishop gets trapped in the middle of the board. The trade of the  fianchettoed bishop is always a tough decision to make and players are  usually have very concrete reasons. How much of this did Dubov prepare at  home? 12... e6d5 And a losing mistake at once! 13. e2f4 The bishop is trapped in the middle of the board! 13... c6e7  14. d1h5  14... c7c6  15. c3d5  15... c6d5  16. f4e6 A multiple attack that nets Dubov loads of material. 16... d8d6  17. e6g7 The simplest. 17... e8d7  18. f1f7  18... a8f8  19. c1f4 Winning the queen as well. 19... f8f7  20. f4d6  20... f7f2  21. h2h1  21... c5d6  22. a1e1  22... h8f8  23. h5g4 White is heavily ahead  in material; all he needs is to consolidate his pieces. 23... d7c6  24. g7e6  24... f8f6  25. e6d4  25... c6b6  26. e1e2 Not allowing even random mating chances. 26... f2f1  27. h1g2  27... e7c6  28. d4c6  28... b7c6  29. c2c3  29... f1f5  30. b2b4  30... b6b7  31. g4g7  31... f6f7  32. g7h6  32... d6c7  33. h6e3  33... c7b6  34. d3d4 Activity should not be allowed. 34... b6c7  35. h3h4  35... a6a5  36. a2a3  36... a5a4  37. e3d3  37... f5f1  38. b4b5 Now it is time for White to  attack with his more powerful army. 38... f1f6 