[Event "Olympiad-12 Final A"]
[Site "Moscow"]
[Date "1956.09.21"]
[Round "9"]
[White "Portisch, Lajos"]
[Black "Keller, Dieter"]
[Result "1-0"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 Bg4 8. Qc2 Bh5 9. Nge2 Bg6 10. Nf4 Bxd3 11. Nxd3 Nbd7 12. O-O O-O 13. b4 Ne4 14. Bxe7 Qxe7 15. b5 Rac8 16. Qb2 Nxc3 17. Qxc3 c5 18. Qa3 Rfe8 19. Qxa7 c4 20. Nf4 Nf6 21. a4 g5 22. Ne2 Ne4 23. a5 Nd2 24. Rfd1 Nb3 25. Ra2 c3 26. Rc2 Qe4 27. Rxc3 Rxc3 28. Nxc3 Qc2 29. a6 Qxc3 30. axb7 Qc2 31. Rf1 Qc7 32. b6 Qd6 33. Qa4 Rb8 34. Qxb3 Rxb7 35. Rb1 Kg7 36. h3 Qg6 37. Rb2 h6 38. Qb5 g4 39. hxg4 1-0