Malich, Burkhard VS Langeweg, Kick 1972.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1972.??.??"]
[Round "?"]
[White "Malich, Burkhard"]
[Black "Langeweg, Kick"]
[Result "1/2-1/2"]

1. c4 Nf6 2. Nf3 e6 3. d4 d5 4. Bg5 Bb4+ 5. Nc3 h6 6. Bxf6 Qxf6 7. cxd5 exd5 8. Qb3 c5 9. e3 O-O 10. dxc5 Bxc3+ 11. Qxc3 Qxc3+ 12. bxc3 Nd7 13. Rd1 Nxc5 14. Rxd5 b6 15. Rd4 Be6 16. c4 Rac8 17. Be2 Na4 18. Kd2 Rc5 19. Rb1 Rfc8 20. Rb4 Ra5 21. Ne1 Nc5 22. Rb2 Ra4 23. Nc2 Nb7 24. Nb4 1/2-1/2