[Event "Match URRS-Monde"]
[Site "Belgrade"]
[Date "1970.04.04"]
[Round "4.3"]
[White "Portisch L."]
[Black "Korchnoi V."]
[Result "1/2-1/2"]
[ECO "A33"]
[PlyCount "49"]
[EventDate "1970.03.29"]
[EventRounds "4"]
[EventCountry "YUG"]
[Source "ChessBase"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Qb6 7. Nb3 Ne5 8. e4
Bb4 9. Qe2 O-O 10. f4 Nc6 11. e5 Ne8 12. Bd2 f6 13. c5 Qd8 14. a3 Bxc3 15. Bxc3
fxe5 16. Bxe5 b6 17. Bg2 Nxe5 18. Bxa8 Nf7 19. Bg2 bxc5 20. Nxc5 Qb6 21. Qf2
Qb5 22. Bf1 Qc6 23. Bg2 Qb5 24. Bf1 Qc6 25. Bg2 1/2-1/2

