[Event "USA-ch"]
[Site "New York"]
[Date "1963.12.22"]
[Round "6"]
[White "Byrne, Robert Eugene"]
[Black "Byrne, Donald"]
[Result "1/2-1/2"]
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Nc6 8. Be2 Bg4 9. Be3 Bxf3 10. Bxf3 e5 11. d5 Nd4 12. O-O-O Nd7 13. Nb5 Nb6 14. Qd3 Nxf3 15. gxf3 Qf6 16. Nxc7 Rac8 17. d6 Na8 18. Kb1 Nxc7 19. dxc7 Rxc7 20. Qd6 Qxd6 21. Rxd6 b6 22. Rc1 Rb7 23. a4 f5 24. Ka2 fxe4 25. fxe4 Bf6 26. Rdc6 Kg7 27. Rc7+ Rf7 28. Rxb7 Rxb7 29. Kb3 Bh4 30. Kb4 Rf7 31. Rc2 h6 32. Kb5 Bg5 33. Bxg5 hxg5 34. Kc6 Kf6 35. Kd6 Rf8 1/2-1/2