[Event "Scerbin D.S. Mem 2021"] [Site "Yekaterinburg RUS"] [Date "2021.12.18"] [Round "1"] [White "Chigaev, M"] [Black "Kovalev, Timofey"] [Result "1/2-1/2"] [WhiteTitle "GM"] [WhiteElo "2632"] [ECO "A53"] [Opening "Old Indian defence"] [EventDate "2021.12.18"] [WhiteFideId "4108116"] [BlackFideId "55694160"] 1. d4 Nf6 2. c4 d6 3. Nf3 c6 4. Nc3 Bg4 5. g3 Nbd7 6. Bg2 e5 7. O-O Be7 8. h3 Bh5 9. Nh4 O-O 10. Nf5 Re8 11. g4 Bg6 12. Nxe7+ Qxe7 13. b3 h6 14. Ba3 Rab8 15. Rc1 c5 16. e3 a6 17. Kh2 b5 18. cxb5 axb5 19. Bb2 b4 20. Nd5 Nxd5 21. Bxd5 cxd4 22. exd4 e4 23. Qe2 Qg5 24. Bc6 Re7 25. Qe3 Qh4 26. Qg3 Qxg3+ 27. Kxg3 Nf6 28. d5 Nd7 29. h4 h5 30. g5 Nc5 31. Bd4 Nd3 32. Rc4 Rf8 33. Be3 f6 34. gxf6 Rxf6 35. f4 Bf5 36. Kh2 Ref7 37. Rg1 Kh7 38. Be8 Rf8 39. Bxh5 Ra8 40. Rg2 Ra5 41. Rc7 Bg6 42. f5 1/2-1/2