[Event "WCh"] [Site "Sofia BUL"] [Date "2010.04.28"] [Round "4"] [White "Anand,V"] [Black "Topalov,V"] [Result "*"] [WhiteElo "2787"] [BlackElo "2805"] [Variant "Standard"] [TimeControl "-"] [ECO "E04"] [Opening "Catalan Opening: Open Defense"] [Termination "Unterminated"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 { E04 Catalan Opening: Open Defense } Bb4+ 6. Bd2 a5 7. Qc2 Bxd2+ 8. Qxd2 c6 9. a4 b5 10. Na3 Bd7 11. Ne5 Nd5 12. e4 Nb4 13. O-O O-O 14. Rfd1 Be8 15. d5 Qd6 16. Ng4 Qc5 17. Ne3 N8a6 18. dxc6 bxa4 19. Naxc4 Bxc6 20. Rac1 h6 21. Nd6 Qa7 22. Ng4 Rad8? { (0.29 → 1.56) Mistake. Nc5 was best. } (22... Nc5 23. Rc4 Nb3 24. Qc3 Rad8 25. Ne5 Be8 26. Rc8 Qb6 27. Rxd8 Qxd8 28. Bh3 Qf6 29. f4 Qe7 30. Nxe8) 23. Nxh6+ gxh6 24. Qxh6 f6 25. e5 Bxg2 26. exf6 Rxd6 27. Rxd6 Be4?? { (2.17 → 7.62) Blunder. Bd5 was best. } (27... Bd5 28. Rc3 Qh7 29. Qxf8+ Kxf8 30. Rc8+ Kf7 31. Rd7+ Kxf6 32. Rxh7 Nd3 33. Ra7 Nab4 34. Rxa5 Nxb2 35. h4) 28. Rxe6 Nd3 29. Rc2 Qh7 30. f7+ Qxf7 31. Rxe4 Qf5?! { (11.13 → Mate in 6) Checkmate is now unavoidable. Nxf2 was best. } (31... Nxf2 32. Rf4 Nh3+ 33. Qxh3 Qa7+ 34. Kf1 Qb8 35. Qe6+ Kh8 36. Rxf8+ Qxf8+ 37. Kg1 Kg7 38. Qe5+ Kh7 39. Rc6) 32. Re7 *