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[Event "AVRO"] [Site "Hilversum"] [Date "1973.??.??"] [Round "11"] [White "Andersson, Ulf"] [Black "Polugaevsky, Lev"] [Result "1/2-1/2"] [WhiteElo "2535"] [BlackElo "2645"] [Variant "Standard"] [TimeControl "-"] [ECO "A16"] [Opening "English Opening: Anglo-Indian Defense, Queen's Knight Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 Nf6 2. Nc3 { A16 English Opening: Anglo-Indian Defense, Queen's Knight Variation } g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 6. O-O c6 7. d3 Nbd7 8. Rb1 a5 9. a3 Nb6 10. Bd2 d5 11. cxd5 cxd5 12. a4 Ne8?! { (0.64 → 1.22) Inaccuracy. Bd7 was best. } (12... Bd7 13. b4 axb4 14. Rxb4 Bc6 15. Nd4 e6 16. Qc2 Nfd7 17. Rfb1 Re8 18. e4 Bf8 19. exd5) 13. Nb5? { (1.22 → -0.33) Mistake. b4 was best. } (13. b4) 13... Bd7 14. Qb3 Nxa4 15. Qxa4 Nc7?! { (-0.64 → 0.03) Inaccuracy. Nd6 was best. } (15... Nd6 16. Qa2 Bxb5 17. Qxd5 Bc6 18. Qc5 Nb5 19. Rfc1 a4 20. Be3 Nc7 21. Qa3 Qd7 22. Qc5) 16. Nfd4 e5 17. Qb3 a4 18. Qa2 exd4 19. Nxc7 Qxc7 20. Bxd5? { (0.00 → -1.17) Mistake. Rbc1 was best. } (20. Rbc1 Qe5 21. Qxd5 Qxe2 22. Qxd7 Qxd2 23. Bxb7 Ra7 24. Qb5 Ra5 25. Qb6 Rf5 26. Ba6 Re8) 20... Bg4 21. Rfe1 Rfe8 22. Rbc1 Qd7 23. Bf4 Rac8 24. Be4?! { (-1.68 → -2.74) Inaccuracy. f3 was best. } (24. f3 Bh3 25. Rxc8 Rxc8 26. Rc1 Rxc1+ 27. Bxc1 b5 28. Kf2 Be6 29. Bxe6 Qxe6 30. Qxe6 fxe6) 24... Be6 25. Qa1 b5 26. Rxc8 Rxc8 27. Rc1 Bb3?? { (-3.58 → -1.13) Blunder. Rxc1+ was best. } (27... Rxc1+) 28. Rxc8+ Qxc8 29. Qa3 h5 30. Qd6 Qc2? { (-1.17 → 0.00) Mistake. Bf8 was best. } (30... Bf8 31. Qf6) 31. Qb8+ Kh7 32. Qxb5 Qxe2 33. Kg2 Be6 34. Qxa4 Qxb2 35. Qd1 Bg4 36. Bf3 { The game is a draw. } 1/2-1/2