[Event "Candidates Warmup #2"]
[Site "Memphis"]
[Date "2007.12.14"]
[Round "2"]
[White "Carrillo, Oscar"]
[Black "Bogle, Allan"]
[Result "1/2-1/2"]
[ECO "B20"]
[WhiteElo "1246"]
[BlackElo "1716"]
[Annotator "Fritz 11 (30s)"]
[PlyCount "82"]
[EventDate "2007.??.??"]
{A34: Symmetrical English: 2 Nc3, lines with ...d5} 1. e4 c5 2. c4 b6 3. Nc3
Bb7 4. g3 {last book move} a6 {Secures b5} 5. Bg2 e6 {Covers d5} 6. Nge2 Qc7 7.
d3 (7. O-O Nf6 $14) 7... d6 8. O-O Nf6 9. b3 Be7 10. Be3 Nc6 11. h3 {Prevents
intrusion on g4} Rd8 12. f4 O-O 13. a3 {Consolidates b4} Na7 (13... Nd7 14. Qe1
$11) 14. Qc2 g6 (14... Nc6 15. b4 $11) 15. Rad1 Rfe8 16. f5 (16. d4 cxd4 17.
Nxd4 Nc6 $16) 16... exf5 17. exf5 Bxg2 18. Kxg2 {White king safety dropped}
Qc6+ 19. Kg1 d5 20. cxd5 (20. Bg5 $5 d4 21. Bxf6 Bxf6 22. Ne4 $11) 20... Nxd5
$15 21. Nxd5 Qxd5 22. d4 cxd4 (22... Nb5 23. Nf4 Qxf5 24. Qxf5 gxf5 25. dxc5
Rxd1 26. Rxd1 Bxc5 27. Bxc5 bxc5 28. Rd5 $11) 23. Bxd4 (23. fxg6 hxg6 24. Rxd4
Qc5 $11) 23... Rc8 {Black threatens to win material: Rc8xc2} (23... Qc6 24. Rc1
Bxa3 25. Qxc6 Nxc6 26. Rxc6 Rxe2 27. Bxb6 $15) 24. Qb1 (24. Nc3 Qc6 (24... Bxa3
$4 {the pawn must be left alone, otherwise Black will be punished} 25. Nxd5
Rxc2 26. Nf6+ Kf8 27. Nxh7+ Kg8 28. Nf6+ Kf8 29. Nxe8 $18) 25. fxg6 hxg6 $14)
24... Qb5 (24... Nb5 $5 25. Bf2 Qe5 $17) 25. fxg6 (25. Nc3 Qc6 26. b4 Nb5 27.
Nxb5 axb5 $14) 25... hxg6 $11 26. Nf4 Qg5 {Black pins: Qg5xg3} 27. Qd3 Bc5 28.
Bxc5 Qxc5+ {Black forks: a3+g1} 29. Kh2 Nb5 30. Nxg6 $2 (30. Nd5 $142 {would
allow White to play on} Kg7 31. h4 $11) 30... Qc2+ $19 (30... fxg6 31. Qxg6+
Kh8 32. Qf6+ Kg8 33. Qf7+ Kh8 34. Rd5 Qxd5 35. Qxd5 $18) 31. Qxc2 (31. Kg1 fxg6
32. Qd5+ Kh8 $19) 31... Rxc2+ 32. Kh1 (32. Kg1 fxg6 33. Rf2 Rc3 $19) 32... fxg6
33. a4 (33. Rde1 {does not win a prize} Rxe1 34. Rxe1 Kf7 $19 (34... Nxa3 $6
35. Re6 Kg7 36. Rxb6 $19)) 33... Nc3 (33... Ree2 $142 {makes it even easier
for Black} 34. Rfe1 Rh2+ 35. Kg1 Nc3 $19) 34. Rd3 (34. Rc1 {praying for a
miracle} Rxc1 35. Rxc1 $19) 34... Ne4 (34... Ree2 35. Rd8+ Kg7 36. Rf2 Rxf2 37.
Rd7+ Kh6 38. Kg1 Rg2+ 39. Kf1 Rge2 40. Rd1 Nxd1 41. h4 Ne3+ 42. Kg1 Rc1#) 35.
Re3 Nd6 (35... Nf2+ $142 {keeps an even firmer grip} 36. Rxf2 Rc1+ 37. Kh2 Rxe3
38. b4 $19) 36. Ref3 (36. Rxe8+ Nxe8 37. Rf4 $19) 36... Ree2 37. Rd1 Rh2+ 38.
Kg1 Rcg2+ 39. Kf1 Rd2 (39... Ne4 $142 {and Black has prevailed} 40. Rd8+ Kg7
$19) 40. Rxd2 Rxd2 41. h4 (41. Rf4 a5 $19) 41... Nf5 1/2-1/2