[Event "Dresden"]
[Site "Dresden"]
[Date "2016.08.02"]
[Round "4"]
[White "Demchenko, Alexander"]
[Black "Heimann, Andreas"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2611"]
[BlackElo "2588"]
[Annotator "ATP"]
[PlyCount "101"]
[EventDate "2016.??.??"]
{ C50:
Giuoco Pianissimo y Defensa Húngara} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6
5. d3 O-O 6. a4 a6 7. Bg5 {[%cal Bc1g5,Bg5h4,Bh4g3][%mdl 32]} h6 8. Bh4 Be7 9.
c3 d6 10. Bg3 {LiveBook: 5 Partidas} g6 {[%eval 63,19]} (10... Na5 $11 {
[%eval 7,17]}) 11. Nbd2 $146 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} (11. Na3 Nh5
12. Nc2 Nxg3 13. hxg3 Bf6 14. Ne3 Bg7 15. d4 Bd7 16. a5 Rb8 17. Qd3 Kh7 18.
Rfd1 Qe7 19. Nd5 Qd8 20. Ne3 Qe7 21. d5 Na7 22. g4 Bf6 23. g3 Kg7 24. Kg2 Rh8
25. Rh1 Rh7 {Demchenko,A (2600)-Andriasian,Z (2621) Abu Dhabi 2016 1/2-1/2 (41)
}) (11. h3 Nh5 12. Bh2 Bg5 13. Na3 Bf4 14. d4 Bxh2+ 15. Kxh2 Nf4 16. Nc2 Kg7
17. Re1 f5 18. dxe5 fxe4 19. Rxe4 d5 20. Rxf4 Rxf4 21. Qxd5 Qxd5 22. Bxd5 Bf5
23. Bxc6 bxc6 24. Ncd4 c5 25. Kg3 Re4 {Bok,B (2596)-Vidit,S (2673) Moscow 2017
1/2-1/2 (64)}) 11... Nh5 12. b4 Bf6 13. Re1 Nxg3 14. hxg3 Bd7 15. Nf1 Ne7 16.
Ne3 b5 17. Bb3 Bg7 18. Qd2 c6 19. d4 Qc7 {[%eval 89,17]} (19... exd4 $14 {
[%eval 43,20] merece consideración.} 20. cxd4 h5) 20. dxe5 dxe5 21. Red1 {
[%eval 53,18]} (21. Qa2 $16 {[%eval 113,16]}) 21... Rfd8 $14 22. Qa2 (22. axb5
{parece más agudo.} cxb5 23. Qc2 Qb7 24. Ne1 Bc6 25. Qa2) 22... Be8 23. c4
Rxd1+ 24. Rxd1 Rd8 25. Rc1 {[%eval 44,17]} (25. Rb1 $16 {[%eval 86,18]}) 25...
Qb8 {[%eval 91,17]} (25... bxa4 $14 {[%eval 44,17]} 26. Qxa4 c5 27. Qxa6 cxb4)
26. axb5 {[%eval 37,17]} (26. a5 $16 {[%eval 91,17]}) 26... axb5 27. c5 {
[%eval 15,20]} (27. cxb5 $16 {[%eval 72,16]} cxb5 28. Nd5 Nxd5 29. Bxd5) 27...
Kf8 $11 28. Ra1 {[%eval 5,17]} (28. Rc3 $14 {[%eval 54,18]}) 28... Nc8 {
[%eval 81,18]} (28... Ng8 $11 {[%eval 5,17]}) 29. g4 {[%eval 39,22]} (29. Qb2
$16 {[%eval 81,18]}) 29... Bf6 {[%eval 119,19]} (29... Ne7 $14 {[%eval 39,22]})
30. g3 {[%eval 51,21]} ({Las blancas deberían jugar} 30. g5 $16 {[%eval 119,19]
} hxg5 31. Ng4) 30... Kg7 $14 31. Kg2 Ne7 32. Qb2 {Y ahora g5! ganaría.} Qc7 {
[%eval 134,17]} ({Mejor es} 32... Rd3 {[%eval 82,20]}) {[%tqu "En","","","",
"g4g5","",10]} 33. Ra6 {[%eval 47,20]} (33. g5 $1 $16 {[%eval 134,17][%mdl 512]
} Bxg5 34. Nxe5) 33... Nc8 {[%eval 97,18]} (33... Ng8 $14 {[%eval 47,20]}) 34.
Qa1 {apuntando a g5.} Qe7 35. Ra8 Qc7 $2 {[%eval 340,19][%mdl 8192] [#]} (35...
Kf8 $16 {[%eval 73,20]}) {[%tqu "En","","","","g4g5","",10]} 36. g5 $1 $18 {
[%cal Rg5f6]} hxg5 37. Ng4 Bd7 38. Nxf6 Kxf6 {[%tqu "En","","","","a1h1","",10]
} 39. Qc1 {[%eval 103,17]} (39. Qh1 $1 $18 {[%eval 227,17][%cal Rh1h7] y el
resto es fácil.} Kg7 40. Nxg5) 39... Bh3+ $16 40. Kg1 Rd3 41. Bd1 {[%eval 8,18]
} (41. Nxg5 $16 {[%eval 98,19]} Bg4 42. Nxf7 Rxb3 43. Qg5+ Kxf7 44. Qxg4) 41...
g4 {[%tqu "En","","","","d1e2","",10]} 42. Be2 $1 $36 {[%cal Re2d3][%mdl 2048]
Las blancas tienen cierta presión.} Qb7 $2 {[%eval 335,18][%mdl 8192]} ({
Las negras deberían intentar} 42... Rxf3 $14 {[%eval 45,16]} 43. Qh6 Qd7 44.
Qh8+ (44. Bxf3 gxf3 45. Qh8+ Ke7 $11) 44... Ke7 45. Qxe5+ (45. Rxc8 Rxg3+ 46.
Kh1 Bg2+ 47. Kg1 Bh3+ 48. Kh2 Rg2+ 49. Kh1 Rxf2 $11) 45... Kd8 46. Bxf3 gxf3)
43. Nxe5 $18 ({No haga} 43. Bxd3 gxf3 44. Ra3 Kg7) 43... Kxe5 $2 {[%eval 549,
20]} (43... Rxg3+ {[%eval 322,17]} 44. fxg3 Qxa8 45. Qf4+ Ke6) 44. Qf4+ Ke6 45.
Bxg4+ $2 {[%eval 92,18]} (45. Rb8 $18 {[%eval 251,22] tiene mejores opciones
de victoria.} Qd7 46. Rxc8 (46. Bxg4+ Bxg4 47. Qxg4+ Ke5 $11) 46... Qxc8 47.
Bxd3) 45... Bxg4 $16 46. Qxg4+ Kf6 $2 {[%eval 407,21][%mdl 8192]} (46... Ke5
$16 {[%eval 92,18] es más resistente.} 47. Rxc8 Qd7 48. Qg5+ Kxe4 49. Qh4+ Ke5)
47. Rxc8 $18 {[#] Te8 es la amenaza fuerte.} Rd7 {[%eval 887,14]} (47... Qd7
$142 {[%eval 450,19]} 48. Qh4+ Ke5) 48. Rh8 {[%eval 411,17]} (48. Re8 $142 {
[%eval 887,14]} Re7 49. Rd8) 48... Kg7 {[%eval 32710,13]} (48... Ke5 $18 {
[%eval 411,17]} 49. Qf4+ Kd4) 49. Qh4 Rd1+ 50. Kh2 {Las blancas quieren dar
mate con e5.} Qd7 51. e5 {Precisión: Blancas = 28%, Negras = 25%.} 1-0
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