[Event "Sweden v USSR"] [Site "?"] [Round "0"] [White "Sterner"] [Black "Boleslavsky"] [Result "0-1"] [ECO "B33"] [Opening "Sicilian: Open, 2...Nc6"] {A futile liquidation} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Be3 Be6 10. f4 a5 11. fxe5 {Played, presumab ly, out of fear of the opponent's world-class ranking. Fear, however, is a poor counselor. In view of the nature of Black's position - backward d-pawn and consequent weakness of d5, best was} (11. f5 Bc8 12. Bc4) 11... dxe5 12. Qxd8 Rfxd8 13. Rfd1 (13. Nc5 Bxc5 14. Bxc5 Nd4 15. Bd3 (15. Be7 Nxe4 $1 16. Bxd8 Nxc3 17. bxc3 Nxe2+ 18. Kf2 Rxd8 19. Kxe2 Bc4+ {combinative liquidation}) 15... Nd7 16. Ba3 Rac8) 13... Nb4 14. Rxd8+ Bxd8 15. Bd3 a4 16. Nd2 (16. Nc5 Bb6) 16... a3 17. b3 Ng4 18. Bc5 (18. Nf1 Rc8 19. Bd2 Bb6+ $18) (18. Nd1 Nxe3 19. Nxe3 Bb6 20. Ndf1 Bd4 {winning the a-pawn}) 18... Nxd3 19. cxd3 Rc8 20. Bb4 (20. d4 b6 21. Bb4 Ne3 22. Nd5 (22. d5 Nc2 23. Rc1 Nxb4 24. dxe6 Bg5 25. exf7+ Kf8) 22... exd4 23. Ne7+ Bxe7 24. Bxe7 Rc2 25. Bb4 Rb2) 20... Bb6+ 21. Kf1 Ne3+ 22. Ke2 Nc2 0-1