[Event "City Championship"] [Site "Memphis"] [Date "2009.02.20"] [Round "7"] [White "Davison, Edgar"] [Black "Hortillosa, Andy"] [Result "1/2-1/2"] [ECO "A48"] [WhiteElo "1851"] [BlackElo "1958"] [Annotator "Fritz 9 (30s)"] [PlyCount "81"] [EventDate "2009.??.??"] {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 O-O 5. Be2 d6 6. h3 c5 7. O-O Qb6 {last book move} 8. Qc1 Be6 9. Nbd2 Nc6 10. c3 {Prevents intrusion on b4} Rac8 11. Ng5 (11. dxc5 $5 { should be considered} Qxc5 12. e4 $11) 11... cxd4 $17 12. Nxe6 fxe6 13. Nc4 Qd8 14. exd4 d5 {Black threatens to win material: d5xc4} (14... b5 15. Na3 Nxd4 16. Bxb5 Nxb5 17. Nxb5 $17) 15. Ne5 {The knight dominates} Nxd4 {Black has new hanging pawns: d5, e6+e7. Theme: Clearance for c8-c1} 16. Qd2 $4 (16. cxd4 { A pinning theme} Rxc1) 16... Nxe2+ (16... Ne4 $142 {secures the point} 17. Qxd4 Rxf4 $19) 17. Qxe2 $17 Ne4 18. Bh2 Rf5 19. Nd3 Qb6 20. Kh1 (20. Rae1 Qb5 $17) 20... Rcf8 (20... Nc5 $5 21. Rad1 Nxd3 22. Rxd3 Rc6 $17) 21. f3 $15 Ng5 22. h4 Nf7 23. g4 {White threatens to win material: g4xf5} Rf6 24. Rae1 g5 (24... Qc6 25. f4 $17) 25. h5 {White wins space} (25. Ne5 Nxe5 (25... gxh4 $143 26. Nd7 Qc6 27. Nxf6+ Bxf6 28. Qxe6 $16) 26. Bxe5 R6f7 (26... gxh4 $143 27. Bxf6 Rxf6 28. f4 $14) 27. Bxg7 Rxg7 (27... Kxg7 $143 28. hxg5 Rd8 29. f4 $16) 28. hxg5 Rxg5 29. Qxe6+ Qxe6 30. Rxe6 Rf7 $11) 25... Qa6 {Black threatens to win material: Qa6xa2} (25... Qc6 $142 $5 $17) 26. Nc5 $14 {Attacking the backward pawn on e6} Qxe2 27. Rxe2 Nd8 28. Kg2 {Black has a cramped position} Rh6 29. Rfe1 d4 (29... Re8 $5 $14) 30. cxd4 Bxd4 31. Nd7 Re8 (31... Rf7 32. b4 a6 33. a4 $16) 32. Be5 (32. f4 Bf6 $16) 32... Nc6 (32... Bxe5 $5 33. Rxe5 Nf7 34. Rxe6 Rxe6 35. Rxe6 Nd8 $14) 33. Bxd4 Nxd4 34. Re4 {White threatens to win material: Re4xd4} (34. Re5 $142 $5 $16) 34... Nc6 $14 35. Rxe6 (35. b3 Rd8 36. Ne5 Rd2+ 37. R1e2 Rd5 $14) 35... Rxe6 $11 36. Rxe6 Rd8 {Black threatens to win material: Rd8xd7} 37. Ne5 {White threatens to win material: Ne5xc6} Rd2+ {Black forks: b2+g2} 38. Kf1 Rd6 39. Rxd6 exd6 40. Nc4 d5 41. Nd6 1/2-1/2