[Event "World-ch24 Petrosian-Botvinnik +5-2=15"]
[Site "Moscow"]
[Date "1963.05.15"]
[Round "20"]
[White "Botvinnik, Mikhail"]
[Black "Petrosian, Tigran V"]
[Result "1/2-1/2"]
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 c5 5. Bxc4 e6 6. O-O a6 7. Bb3 Nc6 8. Qe2 cxd4 9. Rd1 Be7 10. exd4 Na5 11. Bc2 b5 12. Nc3 Bb7 13. Bg5 O-O 14. Rac1 Rc8 15. Bb1 Nc4 16. Ne5 Nb6 17. Qd3 g6 18. Bh6 Re8 19. Qh3 Nc4 20. Nxc4 Rxc4 21. Ne2 Qb6 1/2-1/2