[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1973.03.13"]
[Round "3"]
[White "Verrill, J."]
[Black "Hook, William"]
[Result "1-0"]
[ECO "C18"]
[PlyCount "101"]
[EventDate "1973.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qb1 a6 9. Qb3 Qc6 10. f4 Ne7 11. Nf3 Nd7 12. a4 b6 13. Be2 0-0 14. 0-0 Bb7 15. g4 Kh8 16. Nh4 Rac8 17. Rac1 f6 18. Rf3 fxe5 19. fxe5 Rxf3 20. Nxf3 Ng6 21. h4 Rf8 22. Rf1 Kg8 23. h5 Ne7 24. Bg5 Nc8 25. h6 Rf7 26. Nh2 Rxf1+ 27. Kxf1 gxh6 28. Bxh6 Ne7 29. Qb1 cxd4 30. cxd4 Qc3 31. Nf3 Ng6 32. Qc1 Ndf8 33. Qg5 Qc8 34. Qf6 Qd7 35. Ng5 Bc8 36. Bd3 Qe7 37. Qxe7 Nxe7 38. Bxf8 Kxf8 39. Nxh7+ Kg7 40. Kf2 a5 41. Nf6 Kf7 42. Kg3 Nc6 43. c3 Na7 44. g5 b5 45. g6+ Kg7 46. Nh5+ Kg8 47. Kg4 bxa4 48. Kg5 Nc6 49. Kf6 a3 50. g7 Nd8 51. Kg6 1-0

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1973.03.12"]
[Round "1"]
[White "Verrill, J."]
[Black "Smith, Kenneth Ray"]
[Result "0-1"]
[ECO "A65"]
[PlyCount "74"]
[EventDate "1973.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2007"]
[Source "ChessBase"]
[SourceDate "2006.11.23"]
[SourceVersion "1"]
[SourceVersionDate "2006.11.23"]
[SourceQuality "1"]

1. c4 g6 2. d4 Nf6 3. Nc3 c5 4. d5 d6 5. e4 Bg7 6. f3 0-0 7. Be3 e6 8. Qd2 exd5 9. cxd5 Re8 10. Bd3 Na6 11. Nge2 Nc7 12. g4 Rb8 13. Ng3 b5 14. Bh6 Nfxd5 15. Bxg7 Kxg7 16. Nxd5 Nxd5 17. 0-0-0 Nb4 18. Bb1 Be6 19. a3 Nc6 20. Ne2 Ne5 21. Qf4 b4 22. a4 Bb3 23. Bc2 Bxc2 24. Kxc2 Qd7 25. b3 Rbc8 26. h4 h6 27. g5 hxg5 28. hxg5 Qe7 29. Rh7+ Kxh7 30. Qh4+ Kg8 31. Rh1 f5 32. Qh8+ Kf7 33. Rh7+ Ke6 34. Nf4+ Kd7 35. Rxe7+ Rxe7 36. Qf6 fxe4 37. Nd5 Rf7 0-1

