[Event "IBM"]
[Site "Amsterdam"]
[Date "1970.07.14"]
[Round "1"]
[White "Langeweg, Kick"]
[Black "Csom, Istvan"]
[Result "1/2-1/2"]

1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. e4 d6 6. Be2 Nf6 7. Nc3 Nbd7 8. O-O O-O 9. Be3 a6 10. Qd2 Nc5 11. f3 Bd7 12. Rac1 Rc8 13. Rfd1 Re8 14. Bf1 Qa5 15. b3 Ne6 16. Nc2 Bc6 17. Nd5 Qxd2 1/2-1/2