[Event "Lugano op"] [Site "Lugano"] [Date "1983.??.??"] [Round "?"] [White "Donaldson, John W"] [Black "Gligoric, Svetozar"] [Result "0-1"] [WhiteElo "2405"] [BlackElo "2510"] [ECO "C84"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Be7 7. Re1 b5 8. Bb3 d6 9. Bd5 Nxd5 10. exd5 Ne5 11. Nxd4 O-O 12. a4 Bg4 13. f3 Bd7 14. f4 c5 15. dxc6 Nxc6 16. Be3 Bh4 17. Nxc6 Bxc6 18. Re2 bxa4 19. Nc3 Rb8 20. Rd2 Qe7 21. Bd4 Rfe8 22. Re2 Qd7 23. Rxe8+ Rxe8 24. Qh5 Qe7 25. Rf1 Bf6 26. Qd1 h6 27. Bxf6 Qxf6 28. Qd3 Bb7 29. Qd2 a3 30. bxa3 Qf5 31. Ne2 Qc5+ 32. Nd4 Qxa3 33. f5 Qe3+ 34. Qxe3 Rxe3 35. Rb1 Bd5 36. Rb6 Re1+ 37. Kf2 Rd1 38. Ke3 Bxg2 39. Rxd6 a5 40. Ra6 Ra1 41. f6 g5 42. h4 0-1

[Event "Lone Pine op"] [Site "Lone Pine"] [Date "1981.??.??"] [Round "?"] [White "Gligoric, Svetozar"] [Black "Donaldson, John W"] [Result "1/2-1/2"] [WhiteElo "2530"] [BlackElo "2340"] [ECO "D19"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Nbd7 10. e4 Bg6 11. Bd3 Bh5 12. e5 Nd5 13. Nxd5 cxd5 14. Qe3 Be7 15. Ne1 Bg6 16. f4 Rc8 17. g4 Bxd3 18. Nxd3 Rc4 19. Bd2 Qb6 20. Bc3 f5 21. exf6 Bxf6 22. Ne5 Bxe5 23. fxe5 Rcc8 1/2-1/2