[Event "URS-chT Cup 06th"]
[Site "Riga"]
[Date "1968.12.21"]
[Round "10(7)"]
[White "Vorobiev, M"]
[Black "Kupreichik, Viktor D"]
[Result "0-1"]
1. f4 c5 2. Nf3 g6 3. c4 Bg7 4. g3 Nc6 5. Bg2 e6 6. O-O Nge7 7. Nc3 b6 8. d3 O-O 9. Ne4 d5 10. cxd5 exd5 11. Nf2 d4 12. Rb1 Nd5 13. a3 a5 14. Ng5 h6 15. Nf3 Be6 16. h3 Nce7 17. Nh4 Ra7 18. Qe1 Re8 19. g4 f5 20. gxf5 gxf5 21. Nh1 Bf6 22. Nf3 Ng6 23. Ne5 Nxe5 24. fxe5 Bh4 25. Qd1 Rg7 26. Rf3 Kh7 27. Qd2 Ne3 28. Rxe3 dxe3 29. Qxe3 Bg5 30. Qf3 Bxc1 31. Rxc1 Reg8 0-1