[Event "Leningrad"] [Site "Leningrad"] [Date "1967.??.??"] [EventDate "?"] [Round "?"] [Result "1/2-1/2"] [White "Mark D Tseitlin"] [Black "Sergey V Khavsky"] [ECO "A14"] [WhiteElo "?"] [BlackElo "?"] [PlyCount "62"] 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. b3 b6 7. Bb2 Bb7 8. d3 c5 9. Nbd2 Nc6 10. Qc2 Rc8 11. Rad1 Qc7 12. Rfe1 Rfd8 13. a3 dxc4 14. bxc4 Nd4 15. Nxd4 cxd4 16. Bxb7 Qxb7 17. Nb3 e5 18. e3 Bc5 19. exd4 exd4 20. Re5 Qd7 21. Rde1 Qh3 22. f3 Bd6 23. R5e2 Bxg3 24. hxg3 Qxg3+ 25. Kh1 Ng4 26. fxg4 Qh4+ 27. Kg1 Qg3+ 28. Kf1 Qf3+ 29. Kg1 Qg3+ 30. Kh1 Qh4+ 31. Kg1 1/2-1/2