[Event "Riga"] [Site "?"] [Round "0"] [White "Tal"] [Black "Lozov"] [Result "1-0"] [ECO "A13"] [Opening "English: 1...e6 2.Nf3 d5"] 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O b6 7. Nc3 Bb7 { We have transposed into a variation of the Queen's Indian Defense which is not considered good for Black since the pawn at d5 blocks the bishop at b7.} 8. Ne5 {A typical idea in such positions. The pawn at d5 is now pinned by the bishop at g2, and the knight at e5 controls many key squares.} 8... Qc8 { This breaks the pin and threatens the capture of the pawn at c4.} 9. cxd5 Nxd5 10. Nxd5 Bxd5 11. e4 {Now White has established the ideal pawn center. This gives his pieces a great deal of flexibility, and plenty of space in which to maneuver.} 11... Bb7 12. Qc2 c5 { Black tries to undermine White's central formation.} 13. d5 Rd8 {Black is putti ng a lot of pressure at d5, but with his next move Tal turns the tables by establishing a strong pin on the pawn at e6.} 14. Bh3 Qc7 15. Bf4 {Black broke one pin, but now White threatens a discovered attack when the knight moves.} 15... Bd6 {The immediate threat is eliminated. But the powerful White center now lunges forward, assisted by a sacrifice, and we see that control of the center allows the White queen to get to the kingside quickly.} 16. Nxf7 Kxf7 17. Bxe6+ Ke8 18. e5 {The bishop is attacked, but so is the pawn at h7.} 18... Bf8 19. Qxh7 Rxd5 {19...Bxd5 20.Qg6+ Ke7 21.Bg5++} 20. Qg6+ Kd8 21. Bg5+ Be7 22. Qf7 {The threat is 23.Qf8 mate.} 22... Nd7 23. Qg8+ 1-0