Donaldson, John vs Alzate, Dario
Philadelphia Open · Round 1 · 1986.01.01 · 1/2-1/2 · A34 English Opening: Symmetrical Variation, Three Knights Variation
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PGN
[Event "Philadelphia Open"] [Site "Philadelphia, PA USA"] [Date "1986.01.01"] [Round "1"] [White "Donaldson, John"] [Black "Alzate, Dario"] [Result "1/2-1/2"] [PlyCount "92"] [WhiteElo "2420"] [WhiteFideId "2000709"] [WhiteTitle "IM"] [BlackElo "2365"] [BlackFideId "4400046"] [BlackTitle "IM"] [ECO "A34"] [Source "MillionBase2.9"] [SourceQuality "4"] [ImportDate "2026-01-06"] 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Nc6 6. Bg2 Nc7 7. d3 e5 8. Nd2 Bd7 9. O-O Be7 10. Nc4 f6 11. a4 Be6 12. f4 exf4 13. Bxf4 Nd5 14. Nxd5 Bxd5 15. Nd6+ Bxd6 16. Bxd5 Bxf4 17. Bxc6+ bxc6 18. Rxf4 Rb8 19. Re4+ Kf7 20. Qc2 Qd5 21. Rc1 Rhe8 22. Rxe8 Kxe8 23. Qxc5 Qxc5+ 24. Rxc5 Rxb2 25. Kf2 Kd7 26. Rh5 h6 27. Ra5 Rb7 28. Ke3 Kc7 29. Ra6 Kd6 30. Kd4 Rb2 31. Ke3 Rb7 32. g4 Re7+ 33. Kd2 Kc5 34. e4 Kb4 35. Rxc6 Kxa4 36. Ke3 Kb4 37. d4 a5 38. Rb6+ Kc4 39. Ra6 Kb5 40. Ra8 Re6 41. h4 g6 42. g5 hxg5 43. hxg5 fxg5 44. e5 g4 45. Kf4 Kc4 46. Rxa5 Kxd4 1/2-1/2