[Event "Olympiad-13 Preliminaries C"]
[Site "Munich"]
[Date "1958.10.09"]
[Round "9"]
[White "Witkowski, Stefan"]
[Black "Portisch, Lajos"]
[Result "0-1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. a3 Bb5 7. Bxb5+ Qxb5 8. dxc5 Bxc5 9. Nbd2 Ne7 10. c4 dxc4 11. Qe2 Nbc6 12. Qxc4 Qxc4 13. Nxc4 Ng6 14. b4 b5 15. bxc5 bxc4 16. O-O O-O 17. Be3 Rfd8 18. Rfc1 Na5 19. Rc2 Rd3 20. h3 h6 21. Raa2 Rc8 22. a4 Ne7 23. Bd2 Nec6 24. Rab2 Rb3 25. Ra2 Nb4 26. Bxb4 Rxb4 27. Rd2 c3 28. Rd7 Rb2 29. Rxb2 cxb2 30. Nd2 Rxc5 31. Rd8+ Kh7 32. Rb8 Rc2 33. Nf1 Nc4 34. Kh2 Na3 35. Ne3 Re2 0-1