[Event "Olympiad-10 Preliminaries A"]
[Site "Helsinki"]
[Date "1952.08.10"]
[Round "1"]
[White "Ortega, Rogelio"]
[Black "Heinicke, Herbert"]
[Result "1/2-1/2"]
1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. g3 O-O 7. Nxd5 Qxd5 8. Bg2 c5 9. O-O cxd4 10. Be3 d3 11. Nd4 dxe2 12. Qxe2 Qa5 13. Rfd1 Nd7 14. Rac1 Ne5 15. Bf4 Bg4 16. f3 Bd7 17. b4 Qa6 18. Qxa6 bxa6 19. Bxe5 Bxe5 20. f4 Bxd4+ 21. Rxd4 Rac8 22. Rxc8 Bxc8 23. a3 Kg7 24. Rc4 Be6 25. Rc7 Rc8 26. Rxa7 Rc1+ 27. Kf2 Rc2+ 28. Kg1 1/2-1/2