[Event "Zuerich"]
[Site "Zuerich"]
[Date "1959.05.27"]
[Round "7"]
[White "Donner, Jan Hein"]
[Black "Walther, Edgar"]
[Result "1-0"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 g6 5. e4 Bg7 6. Be2 O-O 7. O-O e5 8. Re1 c6 9. Rb1 a5 10. Bf1 exd4 11. Nxd4 Re8 12. Nc2 Nc5 13. f3 a4 14. Be3 Ne6 15. Qd2 Bf8 16. Red1 Nh5 17. g4 Nhg7 18. f4 f5 19. exf5 gxf5 20. g5 Qe7 21. Re1 Qf7 22. Be2 Nc5 23. Nd4 Bd7 24. Rf1 Ne4 25. Nxe4 Rxe4 26. Bd3 Re7 27. Bf2 c5 28. Ne2 Bc6 29. Ng3 Qg6 30. Qc2 Rf7 31. Rbe1 Bd7 32. h4 Nh5 33. Nxh5 Qxh5 34. Be2 Qg6 35. h5 Qg7 36. h6 Qh8 37. Bh5 Re7 38. Rxe7 Bxe7 39. Re1 Kf8 40. Qe2 Bd8 41. Qe8+ 1-0