[Event "Reggio Emilia-04 1961/62"]
[Site "Reggio Emilia"]
[Date "1961.12.??"]
[Round "?"]
[White "Marthaler, Otto"]
[Black "Sanz Aguado, Jose"]
[Result "1/2-1/2"]

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 c6 5. Nh3 Be7 6. O-O d5 7. cxd5 cxd5 8. Nc3 O-O 9. Bg5 Nc6 10. e3 Bd7 11. Nf4 Ne4 12. Bxe7 Qxe7 13. Rc1 Rac8 14. Nxe4 fxe4 15. h4 a6 16. Bh3 Na5 17. Qg4 Rfd8 18. Rxc8 Bxc8 19. Rc1 Nc6 20. Qg5 Qxg5 21. hxg5 Kf7 22. b4 Bd7 23. a4 e5 24. Bxd7 Rxd7 25. dxe5 Nxe5 26. Rc5 Nf3+ 27. Kg2 d4 28. exd4 Nxd4 29. Kh3 b6 30. Rc8 Nf3 31. Kg4 Ne5+ 32. Kf5 Nd3 33. Kxe4 Nxf2+ 34. Kf3 Nd3 35. Rb8 Rd6 36. Rb7+ Kf8 37. Nxd3 Rxd3+ 38. Ke4 Rd6 39. Ra7 Rc6 40. Rxa6 Rc4+ 41. Kf5 Rxb4 42. Ra8+ Kf7 43. Ra7+ Kf8 44. Ra8+ Kf7 45. Ra7+ 1/2-1/2