[Event "CSR-ch48 International"]
[Site "Trencianske Teplice"]
[Date "1979.11.21"]
[Round "4"]
[White "Ambroz, Jan"]
[Black "Vogt, Lothar"]
[Result "1/2-1/2"]
[BlackElo "2500"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. e5 Nc6 5. d4 Qb6 6. a3 c4 7. g3 f6 8. exf6 Nxf6 9. Bg2 Bd6 10. O-O O-O 11. Nbd2 e5 12. dxe5 Bxe5 13. Qc2 Bg4 14. b3 cxb3 15. Nxb3 Rac8 16. Be3 Qc7 17. Nxe5 Qxe5 18. Nc5 b6 19. Nd3 Qf5 20. f3 Bh3 21. Bxh3 Qxh3 22. Nf4 Qd7 23. Rad1 Rfe8 24. Bf2 Qf7 1/2-1/2