[Event "Chigorin Memorial-02"]
[Site "Rostov on Don"]
[Date "1961.06.05"]
[Round "7"]
[White "Estrada Degrandi, Walter"]
[Black "Drozd, Ryszard"]
[Result "0-1"]

1. d4 c5 2. d5 e5 3. e4 g6 4. Nd2 d6 5. a4 Bg7 6. Bb5+ Bd7 7. Bd3 Qa5 8. Ra3 Nf6 9. c3 O-O 10. Ne2 Qc7 11. f3 b6 12. g4 a6 13. Ng3 Ra7 14. c4 Rb7 15. Qe2 Bh6 16. Nf5 gxf5 17. g5 Kh8 18. gxh6 f4 19. Rg1 Rg8 20. Rxg8+ Nxg8 21. Qg2 Nxh6 22. Qg5 Ng8 23. Nb1 Be8 24. Nc3 f6 25. Qg2 Qg7 26. Qxg7+ Kxg7 27. Bd2 Ne7 28. Kf2 a5 29. Ra1 Na6 30. Rg1+ Kf7 31. Bf1 Nb4 32. b3 Bd7 33. Nb1 Nc2 34. Bc3 Rb8 35. Bd3 Nd4 36. Nd2 Rg8 37. Rxg8 Kxg8 38. Bxd4 exd4 39. Ke2 Kg7 40. Kf2 Ng6 41. Bf1 Kh6 42. Nb1 Ne5 43. Na3 f5 44. Be2 Kg5 45. exf5 Bxf5 46. Nb5 Bc2 47. Nxd6 Bxb3 48. Ne4+ Kg6 49. Nd2 Bxa4 50. Bf1 Bc2 51. Bh3 a4 0-1