[Event "Candidates Tournament"] [Site "?"] [Round "0"] [White "Smyslov"] [Black "Averbakh"] [ECO "A15"] [Opening "English: Anglo-Indian, 2.Nf3"] 1. c4 Nf6 2. Nf3 e6 3. Nc3 d5 4. d4 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bxf6 Qxf6 { This variation has become more popular for White in recent years. Despite giving up the bishop pair, White can hope for the advantage because the pieces can be developed quickly.} 8. Qb3 Qd6 9. a3 Bxc3+ 10. Qxc3 O-O {The minority attack. The idea to provoke weaknesses in the enemy pawn structure by advancing pawns. This strategy is characteristic of the Queen's Gambit lines where White exchanges pawns at d5.} 11. Rc1 c6 12. e3 Bf5 {To off set White's coming minority attack Black will prepare a piece attack on the kingside.} 13. Be2 Nd7 14. O-O a5 {Played with the idea of impeding White's minority attack. The pawn tears itself away from the group and itself comes under fire. However, This will give Black the chance to create threats on the kingside.} 15. Ne1 Nf6 16. Nd3 Bxd3 17. Qxd3 Rfe8 { Black will use the e-file to swing his rook over to White's kingside.} 18. Bf3 Ne4 19. Bxe4 Rxe4 20. Qb3 Qd7 21. Rc5 Rg4 22. h3 {22.Qc3 attacking Black's a-pawn would allow Black to draw by 22...Rxg2+ 23.Kxg2 Qg4+ 24.Kh1 Qf3+ 25.Kg1 Qg4+ 26.Kh1 Qf3+ 27.Kg1 Qg4+} 22... Rg6 23. Kh1 {23.Qc3 Qxh3} 23... a4 24. Qb4 Rf6 25. Kg1 {Agreed drawn. White could have tried to win the a-pawn but it would not have mattered because Black would obtain sufficient counterplay on the kingside.} *