[Event "Las Palmas-02"]
[Site "Las Palmas"]
[Date "1973.04.21"]
[Round "15"]
[White "Darga, Klaus"]
[Black "Stein, Leonid"]
[Result "1/2-1/2"]

1. Nf3 c5 2. b3 d5 3. e3 Nf6 4. Bb2 g6 5. Be2 Bg7 6. O-O O-O 7. d3 Nc6 8. Ne5 Bd7 9. Bf3 Qc7 10. d4 Nxe5 11. dxe5 Ne4 12. Bxe4 dxe4 13. Nc3 Bc6 14. Nd5 Qd7 15. Nf4 Qf5 16. Qd2 Bxe5 17. Bxe5 Qxe5 18. Rad1 Kg7 19. c4 b6 20. h3 Rac8 21. Rfe1 Rc7 22. Qc2 Rd7 23. Rxd7 Bxd7 24. Rd1 Bc6 25. a3 Rc8 26. Ne2 Rc7 27. Nc3 f5 28. Nb5 Rb7 29. a4 Kf7 30. Rd8 a6 31. Qc3 Qxc3 32. Nxc3 Rd7 33. Rb8 Bb7 34. g4 e6 35. a5 bxa5 36. Na4 Rc7 37. Nxc5 Bc8 38. Na4 Bd7 39. g5 e5 40. Rh8 Kg7 41. Ra8 Bxa4 42. bxa4 Rxc4 1/2-1/2