[Event "Las Palmas-01"]
[Site "Las Palmas"]
[Date "1972.06.02"]
[Round "4"]
[White "Visier Segovia, Fernando"]
[Black "Valcarcel, Juan J"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 Nc6 5. Nf3 O-O 6. Qc2 d5 7. a3 Bxc3+ 8. Qxc3 Ne4 9. Qc2 a5 10. Bd3 f5 11. b3 Bd7 12. Bb2 Qe7 13. O-O Rad8 14. Nd2 Be8 15. f3 Nf6 16. Rae1 Bg6 17. Kh1 Qd7 18. Bc3 Rfe8 19. f4 Ra8 20. c5 Nd8 21. h3 Nf7 22. b4 axb4 23. axb4 b5 24. Ra1 c6 25. Ra2 Reb8 26. Rfa1 Qc8 27. Ra5 Rxa5 28. Rxa5 Ra8 29. Qa2 Rxa5 30. Qxa5 Nd8 31. Nb3 Be8 32. Be1 Kf8 33. Bh4 Kf7 34. Qb6 Bd7 35. Na5 Ke8 36. g4 Nf7 37. gxf5 exf5 38. Bxf6 gxf6 39. Qb7 Qxb7 40. Nxb7 Ke7 41. Kg2 Kf8 42. Kg3 Kg7 43. Nd6 Nxd6 44. cxd6 Kg6 45. Kh4 Kh6 46. Be2 Kg6 47. Bh5+ Kg7 48. Be2 1/2-1/2