[Event "1957 Oregon Open"] [Site "Portland, OR"] [Round "0"] [White "Byron, Fred"] [Black "Vandenburg, Dick"] [Result "1-0"] [ECO "A02"] [Opening "Bird: 1..Nf6 2.Nf3"] 1. f4 Nf6 2. Nf3 e6 3. e3 d5 4. b3 g6 5. Bb2 Bg7 6. Be2 Nbd7 7. O-O b6 8. d3 Bb7 9. Nbd2 Qe7 10. Ne5 Nxe5 11. Bxe5 h5 12. Rc1 Rg8 13. c4 c5 14. d4 Rc8 15. Bf3 cxd4 16. exd4 Ne4 17. Bxg7 Rxg7 18. cxd5 Rxc1 19. Qxc1 exd5 20. Bxe4 dxe4 21. f5 gxf5 22. Rxf5 e3 23. Nf3 f6 24. Ne1 Qe4 25. Rf3 Rxg2+ 26. Kxg2 Qg4+ 27. Kf1 Ba6+ 28. Qc4 Bxc4+ 29. bxc4 Qxd4 30. Ke2 Qd2+ 31. Kf1 e2+ 32. Kf2 Qxa2 {#r} 1-0