Prieto Aranguren,A vs Gavilan Diaz,M

1. e4 Nf6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. Be2 e5 6. O-O Be7 7. exd5 Nxd5 8. Re1 O-O 9. Bf1 f6 10. c3 Bg4 11. h3 Bh5 12. Qb3 Na5 13. Qc2 Kh8 14. a3 h6 15. b4 Nc6 16. g3 cxb4 17. axb4 a6 18. Bb2 Rc8 19. Qb3 Qd7 20. b5 axb5 21. Qxb5 Rfd8 22. c4 Nc7 23. Qb6 Ne6 24. Reb1 Bc5 25. Qb3 Ned4 26. Bxd4 Nxd4 27. Qxb7 Qxb7 28. Rxb7 Nxf3+ 29. Nxf3 Bxf3 30. Rb5 Bd4 31. Ra6 Ra8 32. Rba5 Rxa6 33. Rxa6 Ra8 34. Rxa8+ Bxa8 35. Be2 f5 36. Bh5 Kh7 37. Be8 g5 38. Bd7 Kg6 39. Be8+ Kf6 40. Bd7 e4 41. dxe4 Bxe4 42. Bb5 Ke5 43. Be8 Bd3 44. Bf7 Bc5 45. Kg2 Kd4 46. Be6 Be4+ 47. Kg1 Kd3 48. Bf7 Ke2 49. Kh2 Kxf2 50. h4 Bd6 51. Kh3 g4+ 52. Kh2 Bxg3#