[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.31"]
[Round "15"]
[White "Gligoric, Svetozar"]
[Black "Hartoch, Robert G"]
[Result "1-0"]
1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Nf3 O-O 7. Be2 e6 8. O-O exd5 9. cxd5 a6 10. a4 Bg4 11. Bg5 Nbd7 12. Nd2 Bxe2 13. Qxe2 Re8 14. f4 Qc7 15. Qf3 c4 16. Kh1 b6 17. Rae1 h6 18. Bxf6 Nxf6 19. e5 Nh7 20. Nde4 dxe5 21. f5 Qd7 22. fxg6 fxg6 23. Qg3 g5 24. Qe3 Rab8 25. d6 Qe6 26. Qd2 Rf8 27. Nd5 Kh8 28. Nc7 Qg4 29. Rxf8+ Rxf8 30. h3 Qd7 31. Nd5 Rb8 32. Qf2 b5 33. Ne7 Nf8 34. Nc5 Qe8 35. Nxa6 Rd8 36. Nc7 Qh5 37. Nxb5 Ne6 38. Qf5 Nf4 39. d7 Qh4 40. Rf1 g4 41. Ng6+ Nxg6 42. Qxg6 c3 43. Nd6 gxh3 44. Nf7+ Kg8 45. Nxd8 hxg2+ 46. Kxg2 Qb4 47. Ne6 1-0