[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1973.01.31"]
[Round "13"]
[White "Enklaar, Bert F"]
[Black "Hartoch, Robert G"]
[Result "1/2-1/2"]

1. b3 Nf6 2. Bb2 d5 3. e3 e6 4. c4 Be7 5. Nf3 O-O 6. Be2 b6 7. O-O Bb7 8. Nc3 Nbd7 9. Qc2 a6 10. Rad1 Re8 11. d3 c5 12. cxd5 Nxd5 13. Nxd5 Bxd5 14. d4 cxd4 15. Bxd4 Qc8 16. Qb2 Bf8 17. Qb1 Qb7 18. Ng5 g6 19. Ba1 Bg7 20. Bxg7 Kxg7 21. Qb2+ Kg8 22. Rd4 Nf8 23. Bf3 Bxf3 24. Nxf3 Qe7 25. Ne5 f6 26. Nc4 b5 27. Nd6 Red8 28. Ne4 e5 29. Rxd8 Rxd8 30. b4 Ne6 31. Qb3 Kg7 32. Rc1 Qd7 33. h3 f5 34. Nc5 Nxc5 35. bxc5 Qc6 36. Qc3 1/2-1/2