[Event "URS-chT Cup 06th"]
[Site "Riga"]
[Date "1968.12.11"]
[Round "1(1)"]
[White "Keres, Paul"]
[Black "Polugaevsky, Lev"]
[Result "1/2-1/2"]
1. c4 Nf6 2. Nf3 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 Nxc3 6. bxc3 g6 7. Qa4+ Nd7 8. h4 h6 9. h5 g5 10. Ne5 Bg7 11. d4 O-O 12. Nxd7 Bxd7 13. Bb5 Bg4 14. f3 Be6 15. O-O a6 16. Bd3 b5 17. Qc2 cxd4 18. cxd4 Bxd4 19. exd4 Qxd4+ 20. Kh2 Qh4+ 21. Kg1 Qd4+ 22. Kh2 Qh4+ 1/2-1/2