[Event "Interzonal-04"]
[Site "Portoroz"]
[Date "1958.09.06"]
[Round "19"]
[White "Pachman, Ludek"]
[Black "Averbakh, Yuri L"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nf3 e6 3. d4 b6 4. e3 Bb7 5. Bd3 d5 6. b3 Bd6 7. O-O O-O 8. Bb2 Nbd7 9. Ne5 dxc4 10. bxc4 c5 11. f4 Qe7 12. a4 a5 13. Nc3 cxd4 14. exd4 Rfd8 15. Qe2 Bb4 16. Nb5 Ne8 17. Qc2 Nf8 18. Be4 Rac8 19. Rac1 Nd6 20. Bd3 1/2-1/2