[Event "IBM"]
[Site "Amsterdam"]
[Date "1962.08.15"]
[Round "2"]
[White "Tan, Hiong Liong"]
[Black "Rellstab, Ludwig Sr"]
[Result "1/2-1/2"]

1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. O-O Nc6 6. Nc3 g6 7. e4 Bg7 8. Rb1 O-O 9. a3 Ne8 10. b4 d6 11. Nd5 e6 12. Nf4 Nc7 13. d3 Qe8 14. Be3 Nd4 15. bxc5 dxc5 16. Nxd4 cxd4 17. Bd2 Na6 18. Re1 Qd7 19. h4 Nc5 20. Bb4 Rfc8 21. h5 Qd8 22. hxg6 hxg6 23. Qe2 Bc6 24. Nh3 e5 25. Bd2 Bd7 26. Kh2 Rab8 27. f4 b5 28. cxb5 Bxb5 29. Nf2 Bd7 30. Bh3 Bxh3 31. Nxh3 Rxb1 32. Rxb1 Rb8 1/2-1/2