[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1969.01.14"]
[Round "1"]
[White "Geller, Efim P"]
[Black "Portisch, Lajos"]
[Result "1-0"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3
Nd7 10. d4 Bf6 11. a4 Na5 12. Bc2 Nb6 13. b4 Nac4 14. a5 Nd7 15. Na3 Nxa3 16. Bxa3 g6 17.
Qd3 Bg7 18. Rad1 Bb7 19. Bb3 Kh8 20. Bc1 Qe8 21. d5 Nf6 22. c4 bxc4 23. Bxc4 Qe7 24. Bg5
Rfb8 25. Rc1 h6 26. Bxf6 Qxf6 27. Bb3 Qd8 28. Ba4 Bc8 29. Bc6 Bb7 30. Ba4 Bc8 31. Rc4 Bd7
32. Bxd7 Qxd7 33. Rec1 Rb7 34. Rc6 Rxb4 35. Rxc7 Qb5 36. Qxb5 axb5 37. Rxf7 Rxe4 38. Rcc7
Bf8 39. g3 g5 40. Nh2 Kg8 41. Ng4 Rxg4 42. hxg4 1-0