[Event "Leiden"]
[Site "Leiden"]
[Date "1970.04.??"]
[Round "1"]
[White "Larsen, Bent"]
[Black "Botvinnik, Mikhail"]
[Result "1-0"]

1. c4 e5 2. Nc3 Nc6 3. a3 Nf6 4. Nf3 d5 5. cxd5 Nxd5 6. d3 Be7 7. e3 O-O 8. Be2 Be6 9. Bd2 f6 10. b4 Nxc3 11. Bxc3 Bd6 12. O-O Qd7 13. Qc2 a6 14. Rfd1 Qf7 15. Rab1 Rfd8 16. a4 Ne7 17. e4 Nc6 18. g3 Bf8 19. b5 axb5 20. axb5 Nd4 21. Bxd4 exd4 22. Nd2 Ra2 23. Rb2 Ra3 24. Nc4 Rc3 25. Qd2 Bc5 26. Bf1 Kh8 27. Rbb1 Qe7 28. Qf4 Bxc4 29. dxc4 d3 30. Rd2 Rxc4 31. Rxd3 Rc2 32. Rf3 Rdd2 33. Ra1 Qd8 34. Kh1 Bxf2 35. Rd3 Rxd3 36. Bxd3 Rb2 37. Qxc7 Qg8 38. Qxb7 Ra2 39. Rc1 Ra8 40. Rc7 Rb8 41. Qd5 Bb6 42. Rc6 Qf8 43. Qf5 Qg8 44. Kg2 Bd4 45. Qd5 Bb6 46. h4 Qf8 47. e5 1-0