[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1975.03.05"]
[Round "6"]
[White "Davidian, J."]
[Black "Watson, John L"]
[Result "0-1"]
[ECO "B80"]
[PlyCount "82"]
[EventDate "1975.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 d6 7. Bg2 Bd7 8. 0-0 Nf6 9. Re1 Be7 10. Nxc6 Bxc6 11. f4 Qc7 12. h3 0-0 13. g4 Rfe8 14. g5 Nd7 15. h4 b5 16. Be3 Rac8 17. Qg4 Qb7 18. a3 a5 19. h5 b4 20. axb4 axb4 21. Ra7 Qb8 22. Ne2 Bd8 23. Ng3 Bb6 24. Raa1 Bxe3+ 25. Rxe3 Qb6 26. Rae1 Ba4 27. Kh1 Rxc2 28. g6 Nf6 29. gxf7+ Kxf7 30. Qg5 Bc6 31. R3e2 Qc5 32. f5 Rxe2 33. Rxe2 e5 34. h6 Rg8 35. Nh5 Nxh5 36. Qxh5+ g6 37. fxg6+ Rxg6 38. Qf5+ Ke7 39. Rf2 Qc1+ 40. Kh2 Qxh6+ 41. Bh3 Rf6 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1975.03.04"]
[Round "3"]
[White "Davidian, J."]
[Black "Erbe, T."]
[Result "1-0"]
[ECO "C72"]
[PlyCount "73"]
[EventDate "1975.03.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2006"]
[Source "ChessBase"]
[SourceDate "2005.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2005.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Ba4 d6 6. d4 Bd7 7. Nc3 Ng6 8. Bg5 Be7 9. Bxe7 Ncxe7 10. Bxd7+ Qxd7 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Qxd7+ Kxd7 14. Rad1+ Ke6 15. Nd5 Nxd5 16. exd5+ Kd6 17. c4 a5 18. b3 Rab8 19. Rde1 f5 20. a4 Rhe8 21. h4 g6 22. f3 Re7 23. Kh2 Rbe8 24. g4 e4 25. gxf5 gxf5 26. Kg3 e3 27. Kf4 e2 28. Rf2 Kc5 29. Kxf5 Kb4 30. f4 Kxb3 31. c5 Kc2 32. d6 cxd6 33. cxd6 Kd2 34. dxe7 Kxe1 35. Rxe2+ Kxe2 36. Ke6 Ke3 37. f5 1-0

