[Event "USA-ch"]
[Site "New York"]
[Date "1963.12.15"]
[Round "1"]
[White "Addison, William G"]
[Black "Steinmeyer, Robert H"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. d4 d6 6. Be2 e5 7. d5 Nbd7 8. O-O Nc5 9. Bg5 h6 10. Bxf6 Qxf6 11. b4 Nd7 12. g3 Qe7 13. Nh4 a5 14. a3 Nb6 15. c5 axb4 16. cxb6 bxc3 17. Qb3 cxb6 18. Rfc1 Bh3 19. Rxc3 Rfc8 20. Rxc8+ Rxc8 21. Bf1 Bxf1 22. Kxf1 Bf6 23. Ng2 Qc7 24. Ne3 Bg5 25. Rb1 Qc5 26. h4 Bd8 27. Qa4 Kf8 28. Kg2 h5 29. Rb4 Qc3 30. Qd7 Qc7 31. Qa4 Ke7 32. Rc4 Qd7 33. Qxd7+ Kxd7 34. Rxc8 Kxc8 35. a4 Kb8 36. Kh3 Ka7 37. Nc4 Bc7 38. f4 exf4 39. gxf4 f6 40. e5 dxe5 41. d6 Bxd6 1/2-1/2