[Event "USA-ch"]
[Site "New York"]
[Date "1963.12.21"]
[Round "5"]
[White "Addison, William G"]
[Black "Byrne, Robert Eugene"]
[Result "0-1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bg5 d6 5. e3 Nbd7 6. Nf3 h6 7. Bh4 g5 8. Bg3 Nh5 9. Nd2 Nxg3 10. hxg3 Nf6 11. Qc2 c6 12. Be2 Bd7 13. b4 Qc7 14. Nb3 O-O-O 15. O-O-O Kb8 16. Kb1 Rhe8 17. Bd3 e5 18. a3 exd4 19. exd4 Be6 20. Rhe1 Nd7 21. Ne4 d5 22. Ned2 dxc4 23. Bxc4 Nf8 24. Ne4 Bf5 25. f3 Ne6 26. d5 cxd5 27. Rxd5 Rxd5 28. Bxd5 Qe5 29. Bxe6 Bxe6 0-1