[Event "Colorado Open"]
[Site "Denver, Colorado"]
[Date "1972.09.02"]
[EventDate "?"]
[Round "2"]
[Result "1-0"]
[White "John L Watson"]
[Black "Curtis Carlson"]
[ECO "B87"]
[WhiteElo "2133"]
[BlackElo "1832"]
[PlyCount "61"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6
7. Bb3 b5 8. O-O Be7 9. f4 O-O 10. e5 dxe5 11. fxe5 Nfd7
12. Bf4 Nc5 13. Nce2 Bb7 14. Qd2 Nbd7 15. Rad1 Qb6 16. Kh1
Rad8 17. Qe3 Nxb3 18. axb3 Qc7 19. Ng3 Nb6 20. Nh5 Kh8 21. Qg3
Rg8 22. Be3 Bc5 23. c4 bxc4 24. Nb5 Rxd1 25. Rxd1 axb5
26. Bxc5 Qxc5 27. Rd8 g6 28. Qg5 Bxg2+ 29. Kxg2 Qd5+ 30. Rxd5
gxh5 31. Rd8 1-0