[Event "World-ch25 Petrosian-Spassky +4-3=17"]
[Site "Moscow"]
[Date "1966.05.04"]
[Round "11"]
[White "Spassky, Boris Vasilievich"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bg5 Be7 8. Bd3 c5 9. dxc5 Qa5+ 10. c3 Qxc5 11. Qe2 Bd7 12. Ne5 Bc6 13. h4 Rd8 14. O-O-O Nd7 15. Nxc6 Bxg5+ 16. hxg5 Qxg5+ 17. Kc2 bxc6 18. Rh5 Qf4 19. Be4 Qc7 20. Qc4 c5 21. Qb5 g6 22. Rh4 O-O 23. Qc6 Qxc6 24. Bxc6 Ne5 25. Rxd8 Rxd8 26. Bb5 1/2-1/2