[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.20"]
[Round "5"]
[White "Rowley, B."]
[Black "Dalesio, M."]
[Result "1-0"]
[ECO "C83"]
[PlyCount "79"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 Nc5 11. Bc2 Bg4 12. Qe1 Ne6 13. h3 Bh5 14. Bf5 0-0 15. Nh2 Bg6 16. Bxg6 hxg6 17. Nb3 Qd7 18. Nf3 g5 19. Be3 g6 20. Rd1 Rad8 21. Qd2 Kg7 22. Rfe1 Rh8 23. Nxg5 Nxg5 24. Bxg5 Rh5 25. Bxe7 Qxe7 26. f4 g5 27. Nd4 Nxd4 28. cxd4 g4 29. hxg4 Rh7 30. g5 Rdh8 31. f5 Kg8 32. e6 f6 33. gxf6 Qxf6 34. Qf4 Kf8 35. e7+ Ke8 36. Re6 Qg7 37. Qxc7 Rh1+ 38. Kf2 Qxg2+ 39. Kxg2 R8h2+ 40. Qxh2 1-0

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.19"]
[Round "4"]
[White "Bone, Eric Dale"]
[Black "Dalesio, M."]
[Result "1/2-1/2"]
[ECO "C29"]
[PlyCount "30"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 Nc6 6. Bb5 Nxc3 7. dxc3 Qh4+ 8. g3 Qg4 9. Bf4 Be6 10. Qe3 Be7 11. Nf3 0-0-0 12. 0-0-0 Kb8 13. Ng5 h6 14. Nxe6 fxe6 15. Qf2 d4 1/2-1/2

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.19"]
[Round "3"]
[White "Dalesio, M."]
[Black "Celorio, Eduardo"]
[Result "1-0"]
[ECO "C15"]
[PlyCount "45"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Ne7 6. Qg4 c5 7. Bd3 dxe4 8. Qxe4 Bd7 9. Nf3 Bc6 10. Qg4 Nd7 11. Bg5 Qa5 12. 0-0 Nf6 13. Qh4 c4 14. Bxf6 gxf6 15. Qxf6 0-0-0 16. Be2 Nd5 17. Qxf7 Nxc3 18. Bxc4 Rhg8 19. Kh1 Rg6 20. Rfe1 Bd5 21. Bxd5 Qxd5 22. Re5 Qd6 23. Rc5+ 1-0

