[Event "World-ch25 Petrosian-Spassky +4-3=17"]
[Site "Moscow"]
[Date "1966.04.15"]
[Round "3"]
[White "Spassky, Boris Vasilievich"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. cxd5 Nxd5 8. Bc4 Nf6 9. O-O O-O 10. Qe2 Nc6 11. Be3 Na5 12. Bd3 b6 13. Bg5 Bb7 14. Rad1 Rc8 15. Rfe1 h6 16. Bc1 Bb4 17. Bd2 Bxc3 18. bxc3 Qd5 19. Qf1 Qxa2 20. Ne5 Nb3 21. Re2 Nxd2 22. Rexd2 Qd5 23. c4 Qd6 24. Qe2 Rfd8 25. h3 Nd7 26. Ng4 h5 27. Ne3 g6 28. Ra2 Ra8 29. Qc2 Kg7 30. Be4 Bxe4 31. Qxe4 Nf6 32. Qh4 Rd7 33. Rad2 Rad8 34. Rd3 a6 35. Qg5 Ne4 36. Qh4 Nf6 37. Rb3 Qc7 38. d5 Qe5 39. Rxb6 exd5 40. Nxd5 Nxd5 41. cxd5 Rxd5 42. Qxd8 Rxd8 43. Rxd8 Qe1+ 1/2-1/2