[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "15"]
[White "Stein, Leonid"]
[Black "Hartoch, Robert G"]
[Result "1-0"]
1. Nf3 d5 2. g3 c6 3. Bg2 g6 4. d3 Bg7 5. Nbd2 e5 6. e4 Ne7 7. O-O O-O 8. b4 Na6 9. a3 Nc7
10. Bb2 d4 11. c3 Bg4 12. Qc2 Ne6 13. cxd4 Bxf3 14. Nxf3 Nxd4 15. Nxd4 exd4 16. f4 Qd7 17.
Qc5 b6 18. Qc4 Rac8 19. f5 Qd6 20. Rae1 g5 21. Bf3 Be5 22. Re2 b5 23. Qc1 f6 24. Rc2 Rc7
25. Rc5 Nc8 26. Kg2 Nb6 27. Bd1 Nd7 28. Bb3+ Kg7 29. Rc2 Ra8 30. Qd1 Qe7 31. Qd2 Rh8 32.
Rfc1 Nb8 33. Be6 h5 34. h4 g4 35. Rc5 Qd6 36. Rxe5 Qxe5 37. Rc5 Qd6 38. e5 Qd8 39. exf6+
Kf8 40. Qf4 Na6 41. Bxd4 Nxc5 42. Bxc5+ Ke8 43. Qe5 Rhh7 44. Bd7+ 1-0