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Normal Topic Dangerous pawn sacrifice (Read 3307 times)
Toshak
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Re: Dangerous pawn sacrifice
Reply #7 - 12/15/17 at 19:45:44
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Toshak
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Re: Dangerous pawn sacrifice
Reply #6 - 12/15/17 at 19:28:05
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I will try, of course, but don't have much hope ......  Sad
  
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ErictheRed
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Re: Dangerous pawn sacrifice
Reply #5 - 12/15/17 at 18:29:59
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I'm sorry, but can you please clean up the last few posts?  You can insert a PGN file by simply clicking the 'PGN' button and then copying the text of the file between the brackets that come up.  That would give us all a playable interface instead of a wall of text so that we can follow what you're saying.
  
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Toshak
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Re: Dangerous pawn sacrifice
Reply #4 - 12/15/17 at 18:09:05
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OK everybody,
the last 3 posts contain all I got in the 10. b4 variation. I'm not sure that this is way of presentation is very good, but I couldn't do it any better, sorry.
I'd really like to read about Your ideas, maybe we can split the whole thing in some sub-variations.
  
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Toshak
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Re: Dangerous pawn sacrifice
Reply #3 - 12/15/17 at 18:06:02
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33... Ke7 34. Bh5 Nxd4 35. Bxg4 Nb3+ 36.
Kc2 Bxg4 37. Rf4 Be6 38. Rxb4 Na5 39. Kc3 (39. h5 a3 40. h6 Kf7 41. Kb1 Kg8 42.
Rb6 Bf5+ 43. Ka2 Nc4 44. Rb3 Kh7 45. Rc3 Kxh6 46. Rxc4) (39. Kc1 a3 (39... Bb3
40. g4 Nc4 41. g5 Nd6 42. h5 Kf7 43. h6 Nf5 44. h7 Kg7 45. Rb7+ Kh8 46. g6 Nh6)
40. Ra4 Nc4 41. g3 Kf6 42. Ra6 Nxe3 43. Rxa3 Nf5 44. Kd2) 39... a3 40. Ra4 Nc4
41. e4 Nd6 42. e5 (42. Kd4 Nb5+ 43. Ke5 (43. Kd3 Kf6 44. Ra6 a2 45. Ke3 Kg7 46.
g4 Bxg4 47. Rxa2) 43... a2 44. Ra6 Bb3 45. h5 Nc3 46. h6 Na4) (42. Ra8 a2 43.
Kd4 Nb5+ 44. Kc5 Nc3 45. e5 Bd5 46. Ra6 Bxg2 47. Ra5 Bf1 48. h5 Bb5 49. h6 Na4+
50. Kxb5 a1=Q) 42... Nf5 43. Rxa3 (43. h5 a2 44. g4 Nh6 45. g5 Nf7 46. g6 Nxe5
47. g7 Kf7 48. h6 Kg6 49. Ra6 Kh7 50. Kb2 Bg8 51. Rxa2 Bxa2 52. Kxa2) 43...
Nxh4 44. g4 Nf3 45. Ra7+ Bd7 46. Rxd7+ Kxd7 1/2-1/2

  
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Toshak
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Re: Dangerous pawn sacrifice
Reply #2 - 12/15/17 at 18:00:12
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22. Rc4 Nf6 23. Rh4 Ne4 24. Rxh7 O-O-O 25. Bd4 Ng5 26. Rg7
Nf3+ 27. Bxf3 Bxf3 28. Rxf7 Bd5 29. Rf5 Bxa2 30. Rc5+ Kd7 31. Ra5 Bc4 32. Rxa7
Ba6 33. f4 Ke6 34. Kf2 Kf5 35. Kf3 Bd3 36. Ra3 Be4+ 37. Kf2 Kg4 38. Ra5 Rc8 39.
Rg5+ Kh3 40. f5 Rc2+ 41. Ke1 Kh4 42. Bf6 Rc1+ 43. Ke2 Rc2+ 44. Kd1 Rc5 45. Be7
Rd5+ 46. Ke2 Kh3 47. Kf2 {1/2-1/2 (47) Graf,F (2458)-Krassowizkij,J (2348)
Hannover 2012}) 15... O-O 16. Qb3 Be6 17. Bc4 Rac8 18. O-O Rxc4 19. Rxc4 Ne4
20. Rfc1 Nd2 21. Qb4 Nxc4 22. Rxc4 Qa6 23. Rc1 b6 24. Qd6 Qxa2 25. Ra1 Qb3 26.
h3 a5 27. Bxb6 a4 28. Bd4 h6 29. Kh2 Qc4 30. Ra3 f6 31. Rc3 Qd5 32. Qe7 Qd7 33.
Qb4 Bb3 34. Qa5 Rc8 35. Qb4 Rxc3 36. Bxc3 Kf7 37. Bd4 Qf5 38. Kg1 Qb1+ 39. Kh2
Qc2 40. f3 Bc4 41. Qb7+ Kg6 42. Qb2 Qxb2 43. Bxb2 Kf5 44. g4+ Ke6 {1/2-1/2 (44)
Tomazini,A (2349)-Cigan,S (2356) Slovenia 2017}) 15. Qxd4 Qxd4 16. Bxd4 O-O (
16... f6 17. Be2 Nc6 18. Bf3 Bd7 19. O-O O-O 20. Bc5 Rfd8 21. Bd5+ Kh8 22. Rfd1
g6 23. Rb1 b6 24. Be7 Rf8 25. Bxf8 Rxf8 26. Bxc6 Bxc6 27. Rd6 Be4 28. Rbd1 Bf5
29. f3 Kg7 30. e4 Bc8 31. Rd8 Be6 32. Rxf8 Kxf8 33. Rd8+ Ke7 34. Ra8 a5 35. Ra6
Bxa2 36. Rxb6 a4 37. Kf2 Bc4 38. Rb4 Bb3 39. Ke3 Kd6 40. Kd4 Kc6 41. Rb8 Kd6
42. Rb6+ Ke7 43. Rb7+ Kf8 44. Rxh7 Bf7 45. Rh8+ Bg8 46. Kc3 Kg7 47. Rxg8+ Kxg8
48. Kb4 Kf7 49. Kxa4 Ke6 50. f4 g5 51. g3 {1-0 (51) Ott,F (2173)-Maurer,J
(2268) Germany 2014}) 17. Be2 (17. Bc4 Nc6 18. Bc3 Be6 19. Bxe6 fxe6 20. Ke2
Rfd8 21. h4 Rac8 22. Rb1 Rc7 23. Rhc1 Rd5 24. Be1 Kf7 25. Rc4 h5 26. a4 Rcd7
27. Rc2 Rc7 28. Rcb2 Nd8 29. Bd2 Rdc5 30. a5 g6 31. e4 Ke8 32. Kf3 e5 33. Rb3
Rc4 34. Be3 Rf7+ 35. Kg3 Rxe4 36. Bxa7 Rff4 37. f3 Ra4 38. Rb5 Nc6 39. Rxb7
Rxa5 40. Be3 Rf7 41. R7b6 Kd7 42. Rc1 Rf6 43. Rb7+ Kd6 44. Rxc6+ {1-0 (44)
Kjartansson,G (2477)-Cordes,H (2250) London 2015}) (17. Bc5 Re8 $11 18. Bb5 Nc6
19. O-O a6 20. Be2 Be6 21. a3 Rac8 22. Bb6 Ne5 23. Bc7 Bc4 24. Bxc4 Rxc7 25.
Bd5 Rec8 26. Rb1 b5 27. a4 bxa4 28. Ra1 Nc4 29. Rxa4 Nb6 30. Rd4 Nxd5 31. Rxd5
Ra7 32. Ra5 Kf8 33. Rfa1 Ke7 34. Kf1 {1/2-1/2 (34) Becker,M (2303)-Kilian,R
(2133) Germany 2014}) 17... Be6 18. a3 Nc6 19. Bc3 Rfc8 20. O-O Rab8 21. Rb1 f6
22. f4 Ne7 23. Bb4 Nd5 24. Bf3 Nxb4 25. axb4 Rc7 26. Rfd1 Kf7 27. Ra1 b6 28.
Ra3 Re8 29. Kf2 Ree7 30. g4 g6 31. h4 {1/2-1/2 (31) Kanarek,M (2528)-Golubka,P
(2403) Legnica 2016}) 13. Bc3 Qxd1+ (13... exf2+ 14. Kxf2 Qb6+ 15. Bd4 Qh6 16.
Qe1+ Ne7 17. Qxb4 O-O 18. Bc4 (18. Bb5 Nf5 19. Rhe1 Be6 20. Be5 Bxa2 21. Bd3
Be6 22. Rc5 a5 23. Qa4 Rad8 24. Bf4 Qf6 25. Be5 Qh6 26. Bc2 Ne7 27. Bf4 Qf6 28.
Bg5 Qb2 29. Bxe7 Qb6 30. Qxa5 Qb2 31. Bxd8 Bb3 32. Re2 {1-0 (32) Cutmore,M
(2044)-Hickman,J (1935) Paignton 2012}) 18... Nc6 19. Qc3 Bg4 20. Be3 Qh5 21.
Be2 Rae8 22. Bc5 {1-0 (22) Kobo,O (2482)-Korning,P (2080) Caleta 2017}) (13...
Nd5 14. fxe3 (14. Bb5+ Ke7 15. Bxg7 (15. fxe3 Nxc3 16. Qxd6+ Kxd6 17. Rxc3 a6
18. Ba4 Be6 19. O-O b5 20. Bb3 Nh6 21. Bxe6 Kxe6 22. Ng5+ Ke7 23. Rc7+ Kd8 24.
Rfc1 Re8 25. Nxf7+ Nxf7 26. Rxf7 Re7 27. Rxe7 Kxe7 28. Rc7+ Kf6 29. Kf2 Re8 30.
Kf3 Re7 31. Rc6+ Re6 32. Rc7 Rb6 33. e4 b4 34. Rc5 b3 35. axb3 Rxb3+ 36. Kf4
Rb6 37. h4 g6 38. g3 Ke6 39. Rc7 h5 40. Kg5 Ke5 41. Re7+ Re6 42. Rc7 Kxe4 43.
g4 hxg4 44. Kxg4 Rd6) (15. O-O exf2+ 16. Rxf2 Nxc3 17. Qxd6+ Kxd6 18. Rxc3 Nh6)
15... Qb4+ 16. Kf1 Qxb5+ 17. Kg1 exf2+ 18. Kxf2 Ngf6 19. Bxh8 Ne4+ 20. Kg1 f6)
(14. Bxg7 Qb4+ 15. Nd2 Bg4 16. f3 Bxf3 17. gxf3 Nge7 18. Bxh8 (18. Rc4 Qxd2+
19. Qxd2 exd2+ 20. Kxd2 Rg8 21. Bb2 Rd8) 18... Qh4+ 19. Ke2 Nf4+ 20. Kxe3 Nf5+)
(14. Bc4 Ngf6) 14... Ngf6 15. e4 Qe7 (15... Nxe4 16. Qa4+ Kd8 17. Qxe4 Re8 18.
Ne5 f6 19. Nf7+ Kd7 20. Bb5+ Qc6) 16. Bb5+ Kf8 17. O-O Nxc3 18. Rxc3 a6 (18...
Be6 19. Ng5 h6 20. Nxe6+ Qxe6 21. Qd4 Qxe4 22. Qc5+ Qe7 23. Qxe7+ Kxe7 24. Rc7+
Kd6 25. Rxf7 Rhg8 26. Rd1+ Kc5 27. Be2 Rab8 28. Bf3 Kb4) 19. Ba4 h6) (13... Qb6
14. Bxg7 Bf5 15. Nd4 exf2+ 16. Kxf2 f6 17. Qh5+ Kd8 18. Qh4 h5 19. Bxh8 Bg4 20.
Rc4 Rc8 21. Rxb4 Qxb4 22. Bxf6+ Ke8 23. Be2 Qb6 24. Be5 Bxe2 25. Re1 Rc2 26.
Rxe2 Rxe2+ 27. Kxe2 Qb2+ 28. Kf3 Qc3+ 29. Ke4 {1-0 (29) Kaczmarczyk,D (2355)
-Rosner,J (2350) Germany 2013}) 14. Kxd1 Nxa2 15. Bxg7 Nxc1 16. Kxc1 Bd7 {
soll ein Läuferschach von b5 verhindern und ein Turmschach von c8 ermöglichen}
(16... f6 17. Bxh8 Bg4 (17... Bf5 $4 18. Nd4 Bg6 19. fxe3 Rc8+ 20. Kb2 Kf7 21.
Kb3 Ne7 22. Bc4+ Rxc4 23. Kxc4 Be4 24. Rg1 Ng6 25. Nb5 Bc6 26. Nxa7 Nxh8) (
17... exf2 $6 18. Nd4 Ke7 19. Be2 Nh6 20. Rf1 Bg4 21. Bg7 Bxe2 22. Rxf2 Ng4 23.
Rxe2+ Kf7 24. h3 Kxg7 25. hxg4 Kf7 {Könnte vielleicht auch remis sein.}) (17...
Bd7 18. fxe3 Rc8+ 19. Kd2) 18. fxe3 Rc8+ 19. Kd2 Kf7 20. Bd3 Ne7 21. Bxf6 (21.
Ra1 Bxf3 22. gxf3 a6 $14 {0.68/40} 23. Bxf6 Kxf6 $14 {0.56/39} 24. Rb1 b5 25.
Ra1 Rc6 26. Bxh7 Rd6+ 27. Ke2 Nd5 28. h4 Re6 29. Bg8 Nf4+ 30. Kf2 Nd3+ 31. Kg2
Rxe3 32. Rxa6+ Kg7 33. Ra8 Ne5 34. Bd5 b4 35. Ra7+ Kf6 36. Ra6+ Kg7 37. Rb6 Nd3
38. Kg3 Re1 39. Be4 Nc5 40. Rxb4 Nxe4+) 21... Kxf6 22. Ng1) (16... exf2 17.
Bxh8 f6 18. Nd4 Ke7 19. Bd3 Bd7 20. Rf1 Nh6 21. Bg7 Ng4 22. Be2 Nxh2 23. Rxf2
Ng4 24. Bxg4 Bxg4 25. Bxf6+ Kd7 26. Bh4 Bh5 27. Rd2 Bg6 28. g4) 17. fxe3 $146 (
17. Bxh8 Rc8+ (17... f6 18. fxe3 Rc8+ 19. Kd2 Kf7 20. Bd3 Ne7 21. Ne5+ fxe5 22.
Bxe5 Rc5 23. Bd4 Ra5 24. Rf1+ Ke8 25. Bxh7 Ra2+ 26. Kc3 Rxg2 27. Be4 Rxh2 28.
Bxb7 a5 29. Rf6 Rh5) 18. Kb2 f6 19. fxe3 Kf7 20. Bd3 (20. Ne5+ fxe5 21. Bxe5
Bf5 $11) 20... Ne7 21. Ne5+ (21. Rf1 Rxh8 22. Ne5+ Ke6 23. Nxd7 Kxd7 24. Rxf6
$11) 21... fxe5 22. Bxe5 Bf5 23. e4 Nc6 (23... Bg6 24. h4 h5 25. Rf1+ Ke6 26.
Bd4 a6 27. Rf6+ Kd7 28. Rb6 Kc7 29. Re6 Kd7 30. Rb6 Kc7 31. Rb3 b5 32. Ra3 Kb7
33. Bxb5 axb5 34. Ra7+ Kc6 35. Rxe7 Re8 36. Rg7 Bxe4 37. Rg5 Rd8 38. Rc5+ Kb7
39. Rxb5+ Ka6 40. Rb4 Bxg2 41. Kc3 Rc8+ 42. Kd2 Re8 43. Rb6+ Ka5 44. Rf6 Bh3
45. Kc3 Re6 46. Rxe6 Bxe6 {1/2-1/2 (46) Bluebaum,M (2510)-Musat,A (2401)
Pardubice 2014}) 24. Bc3 Bg6 25. h4 Ke6 26. h5 Bf7 27. e5 Bg8) 17... Rc8+ 18.
Kd2 f6 19. Bxh8 (19. Bd3 Kf7 20. Bxh8 Ne7 21. Ne5+ (21. Rb1 b6 22. Ra1 a5 23.
Ne5+ fxe5 24. Bxe5 Nc6 25. Bc3 Rg8 26. g3 h5 27. e4) (21. Bxh7 Rxh8 22. Be4 Bc6
23. Bxc6 Nxc6 24. Rb1) (21. Bxf6 Kxf6 22. Ra1 Nc6 23. Bxh7 Rd8 $11 24. Ke2 a5
25. Bd3 Ra8 26. Bb5 Ne5 27. Bxd7 Nxd7 28. Rb1 b6 (28... a4 29. Rxb7 a3 30. Rxd7
a2 31. Rd6+ Kg7 32. Rd1 a1=Q 33. Rxa1 Rxa1) 29. Nd4 a4 30. Ra1 Nc5 31. Ra2 Rg8
32. g3 Rh8 33. h4 Ke5 34. Rb2 Rg8 35. Rxb6 Rxg3 36. Rb5 Kd5 37. Nf5 Rh3 38. e4+
Kc6 39. Nd4+ Kd6 40. Nf3 Nxe4) 21... fxe5 22. Bxe5 Rc5 23. Bd4 Ra5 (23... Rg5
24. Bxa7 (24. g3 a5 25. Bxh7 Nf5 $14 {0.56/37} 26. Bc3 $14 {0.51/41} Rh5 27.
Bxf5 Rxf5 28. e4 Rf2+ 29. Ke3 Ra2 30. h4 Ra3 31. Kd4 Ra4+ 32. Ke5 Ra3 33. Rf1+
Kg6 34. Rf6+ Kh5 35. Be1 a4 36. Rd6 Bh3 37. Kf4 Ra1 38. Bd2 Rf1+ 39. Ke3 Bc8
40. Rd5+ Kg6 41. Rc5 Be6 42. h5+ Kh7 43. Ra5 Bg4 44. Kd4 Rf7 45. Rxa4 Rd7+ 46.
Ke3 Bxh5 47. Bb4 Kg6 48. Ra8 Rf7 49. Rh8 Rf3+ 50. Kd4 Rb3 51. Bc3 b5) 24...
Rxg2+ $11) 24. Bxh7 Ra2+ 25. Kc3 (25. Bc2 Ba4 26. Rc1 Nd5 27. Bc5 b6 28. e4 Nc7
29. Be3 Nb5 30. Kd3 Ra3+ 31. Ke2 Ra2 32. Kd3) 25... b5 26. Rf1+ Ke8 27. Be4 Bc6
28. Rf4 Kd7 29. Kb3 Rd2 30. Bxa7 Bxe4 31. Rxe4 Rxg2 32. Rh4 Nd5 33. e4 Nc7 34.
Rh7+ Kc6 35. Rh6+ Kd7 36. Kc3 Ne6 37. Rh7+ Kc6 38. Be3 Rg4 39. Kd3 b4) 19...
Kf7 20. Bd3 Ne7 21. Rb1 b6 22. Ra1 (22. Bxf6 Kxf6 23. Bxh7) 22... a5 23. Ne5+
fxe5 24. Bxe5 Rc5 (24... Nc6 25. Bc3 (25. Rf1+ Ke7 26. Bf6+ Kd6 $14 {0.51/38})
(25. Bg3 Kg7 26. Rc1 a4 $14 {0.31/35}) 25... Rg8 26. g3 h5 $14 {0.41/38} 27. e4
Ke7 (27... h4 28. Ke3 hxg3 29. Bc4+ Be6 30. Rf1+ Ke7 31. Bf6+ Ke8 32. Bxe6 g2
33. Rg1 Rg6 34. e5 Nxe5 35. Bxe5 Rxe6 36. Ke4 Rg6 37. Bg3) 28. Ke3 Rb8) (24...
a4 25. Rf1+ (25. Bb2 Rd8 (25... Kg8 26. Ba3 Nd5 27. e4 $11 {0.30/34}) 26. Bd4
b5 27. Rf1+ $11 {0.16/32}) 25... Ke8 26. Bg7 (26. g3 Rc5 27. Bd4 Rh5 28. h4 $11
{0.21/33}) (26. Rf6 a3 (26... Rc5 27. Bd6 Rd5 28. e4 $16 {0.76/29}) 27. Rxb6
Nc6 28. Bh8 $11 {0.29/31}) (26. Bd4 Nc6 27. Bb2 b5 28. Bxb5 $14 {0.37/32})
26... Ng6 (26... Bc6 27. g3 h5 28. Bd4 $14 {0.68/28}) 27. Rb1 $14 {0.67/24} Rb8
28. h4 $14 {0.70/27} Bc6 29. g3 Rb7 30. Bd4 b5 31. h5 Nf8 32. Rc1 Bd7 33. Be4
Rb8 34. Ba7 Rc8 35. Rxc8+ Bxc8 36. Kc3 h6 37. Bb8 Ne6 38. Bd6 Kd7 39. Be5 Ke7
40. Bd3 Bd7 41. Kb4 Nd8 42. Bg7 Kf7 43. Bxh6 Nc6+ 44. Kc5 a3 45. Bg6+ Kf6 46.
Bb1 Ne5) (24... Ke6) (24... Kg8) 25. Bd4 (25. Bg3 Nf5 (25... Ng6 26. Rc1 Rxc1
27. Kxc1 $11 {0.07/45}) 26. Bf4 Bb5 27. Bc2 $11 {0.07/35}) 25... Rh5 (25... Rg5
26. g3 Rh5 27. h4 $16 {1.03/37}) (25... Rc6 26. Rb1 Nc8 27. Rf1+ $16 {1.03/35})
26. h3 (26. Bxb6 Rxh2 27. Bc4+ Kg6 28. Bxa5 Rxg2+ 29. Kc3) 26... Rg5 $14 {
0.51/33} 27. Rf1+ $14 {0.49/32} (27. Rg1 $14 {0.56/34}) (27. g4 h5 28. Bc4+ Ke8
29. gxh5 Rxh5 30. Bxb6 a4 31. Rf1 Bxh3 32. Rh1 Bg4 33. Rxh5 Bxh5 34. Bb5+ Kf8
35. Bxa4 Bg6) 27... Ke8 (27... Ke6 28. Rf6+ Kd5 29. Kc3) 28. Rf2 b5 (28... a4
29. Bxb6 (29. Bxh7 a3 30. g4 (30. Bc2 Nf5 31. Ba1 Nd6 32. h4 Rg4 33. h5 Nf7 34.
Ke1 Rb4 (34... Rh4 35. Bg6 Be6 36. Rf4 Rh1+ 37. Rf1 Rxf1+ 38. Kxf1 Kf8 39. Ke1
Kg8 40. Kd1 Nh6 41. Kc1 Ng4 42. Bd4 b5 43. Be8 b4 44. Bc5 Ne5 45. Bxb4 Nd3+)
35. Bg6) 30... Be6 31. Be4 a2 32. Rf1 Kd7 33. Rc1 Ra5 34. Ra1 b5 35. Bc3 b4 36.
Bxb4 Ra4 37. Kc3 Nd5+ 38. Bxd5 Bxd5) 29... a3 30. Kc1 Bc6 31. e4 Rg3 32. Bc2
Bb5 33. Bd1 Nc6 34. Bc5 Ne5 35. Kb1 Kd7 36. Rf5 Nc4 37. Bg4 Nd2+ 38. Kc2 Nxe4
39. Bxa3 Ba4+ 40. Kb2 Rb3+ 41. Kc1 Rc3+ 42. Kb1 Nd2+ 43. Ka2 Rc2+ 44. Bb2 Ke7
45. Bd1 Rc4 46. Bxa4 Rxa4+ 47. Ba3+ Ke6 48. Rh5 Nc4 49. Kb3 Rxa3+ 50. Kxc4 Rg3
51. Rxh7 Rxg2) 29. Bxh7 a4 30. Bd3 (30. Be4 Bc6 31. Bd3 b4 32. g4 a3 33. Bc2
Bd5 (33... Kd7 34. Rf4 Rg8 35. Rf7 Kd6 36. Rf6+ (36. Bb3 Bd5 37. Rxe7 Bxb3 38.
Rb7 a2 39. Rxb4 Bd5 40. Rb6+ Kd7 41. Ra6 Bg2 42. Rxa2 Bxh3 43. Ra7+ Ke6 44.
Ra6+ Kd7 45. Rh6 Bxg4) 36... Kd7 37. Be5 Rg5 38. Rd6+ Kc7 39. Re6+ Kd7 40. Bb3
Rg6 41. Rxg6 Nxg6 42. Bf6 Kd6 43. h4 Ne5 44. g5 Nf3+ 45. Kd3 Nxh4 46. Kd4 (46.
Kc4 a2 47. Kxb4 Bd5 48. e4 Bxb3 49. Kxb3 Ke6 50. Kxa2 Nf3 51. Bd8 Kf7 52. Kb2
Nd2 53. e5 Nc4+ 54. Kb3 Nxe5 55. Kc3 Kg6) 46... Bd5) 34. e4 Be6 35. Ba4+ Bd7
36. Bb3 Bc6) 30... b4 (30... Be6 31. h4 (31. Ba1 Kd7 32. h4 Rh5 $14 {0.41/36})
(31. Bf6 Rc5 32. Rf4 Nc6 $14 {0.48/37}) 31... Rh5 (31... Rd5 32. Be4 Rh5 $16)
32. e4 Rxh4 $16 {0.84/41}) (30... Nc6 31. h4 Rd5 32. h5 Nxd4 33. exd4 Rd6 34.
Bg6+ Ke7 35. Rf7+ Kd8 36. Kc3 a3 37. Rf1 b4+ 38. Kxb4 Rxd4+ 39. Kc5 Ra4) (30...
a3 31. h4 (31. e4 Nc6 32. h4 Rh5 $11 {0.13/33}) (31. Kc1 Be6 32. h4 Rh5 $11 {
0.19/36}) (31. Bf6 Rc5 32. g4 Be6 $11 {0.19/38}) (31. e4) 31... Rg4 32. h5 a2
$14 {0.55/36} 33. e4 Nf5 34. Ba1 Nd6 35. h6 Rh4 36. Rf6 Nf7 37. e5 Nxh6 38. Ra6
Nf5 39. Rxa2 Rg4 40. Ke1 Ra4 41. Rxa4 bxa4) 31. Bc4 (31. e4 Nc6 32. h4 Ra5 $11
{0.08/40}) (31. h4 Ra5 32. Rf4 $14 (32. Bb6 Rh5 $14) 32... a3 $14 {0.53/36} 33.
g4 a2 34. Ba1 b3 35. h5 b2 36. Bxb2 a1=Q 37. Bxa1 Rxa1 38. h6 Rh1 39. h7 Be6
40. g5 Rh2+ 41. Ke1 Bf7 42. Rf6 Ng6 43. Bxg6 Bxg6 44. Rxg6 Rxh7) (31. g4 a3 32.
Rf1 Bb5 $11) (31. Kc1) 31... Nc6 32. h4 (32. Bf7+ Kf8 $14 {0.54/41} 33. Bb3+
Ke8 34. Bxa4 Nxd4 35. Bxd7+ Kxd7 36. exd4 Rg3 37. Kc2 Kd6 38. h4 Kd5 39. h5
Kxd4 40. h6 Rg6 41. h7 Rh6 42. Rf4+ Ke5 43. Rf7 Ke6 44. Rb7 Kf5 45. Kd2 Kg6 46.
Rb6+ Kxh7 47. Rxh6+ Kxh6) (32. Bf6 Rc5 $14 {0.41/38}) 32... Rg4 33. Bf7+ $8 (
33. Bc5 Kd8 34. Bb6+ Ke7 35. Bc5+ Kd8) 33... Ke7 34.
  
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Re: Dangerous pawn sacrifice
Reply #1 - 12/15/17 at 17:53:36
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1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. dxc5 d4 7. Na4 Bxc5 (
7... Bf5) 8. Nxc5 Qa5+ 9. Bd2 ( 9. Qd2 Qxc5 10. e3 dxe3 11.
Qxe3+ Qxe3+ 12. Bxe3 Be6 13. Bb5 Nge7 14. Nd4 Bd5 15. O-O O-O 16. Rfd1 $11 {
Ivanchuk-Grischuk, Amber Rapid 2006}) 9... Qxc5 10. b4 Nxb4 (10... Qb6 11. Qa4
(11. a4 a6 12. e3 (12. b5 axb5 13. axb5 Rxa1 14. Qxa1 Qxb5 15. e3 d3 16. Qc3
Qb1+ 17. Bc1 Qc2 18. Qxc2 dxc2 19. Ba3 Bf5 20. Nh4 Be6 21. Bd3 Nge7 22. Ke2 O-O
23. Nf3 Ra8 24. Bxe7 Nxe7 25. Nd4 Nc6 26. Nxc2 Ra2 27. Rb1 Ne5 28. Ra1 Nxd3 29.
Kxd3 Rxa1 30. Nxa1 Kf8 31. Kd4 b6 32. Nc2 Ke7 33. Kc3 Kd6 34. Kb4 Bd7 35. Nd4
Kd5 36. Nf3 h6 37. Nd2 f6 38. Nc4 Kc6 39. Nb2 Bf5 40. Nd1 Be4 41. f3 Bd3 42. e4
f5 43. exf5 Bxf5 44. Ne3 Be6 45. f4 Bd5 46. Nf5 Bxg2 47. Nxg7 Kd5 48. Nf5 Ke4
49. Nxh6 Kxf4 50. Kb5 Kg5 51. Nf7+ Kh4 52. Kxb6 Kh3 53. Kc5 Kxh2 {1/2-1/2 (53)
Kjartansson,G (2477)-Compton,A (2061) London 2015}) 12... dxe3 13. fxe3 Nf6 14.
b5 axb5 15. axb5 Rxa1 16. Qxa1 Ne7 17. Bd3 O-O 18. Qd4 Ned5 19. Qxb6 Nxb6 20.
Ke2 Be6 21. Rc1 Rc8 22. Rxc8+ Nxc8 23. e4 Nd7 24. Ke3 f6 25. Kd4 Nd6 26. Bf4
Nf7 27. h3 g5 28. Bc7 g4 29. hxg4 Bxg4 30. Bc4 Kf8 31. Nh2 Bd1 32. b6 Ke7 33.
Nf1 Nd6 34. Bd5 Be2 35. Nd2 Nc8 36. Bxb7 Ncxb6 37. Nb3 h5 38. Ke3 Bf1 39. Kf2
Bc4 40. Nd4 Be6 41. Kg3 Nc4 42. Nxe6 {1-0 (42) Saric,S (2420)-Dronjic,S (2170)
Novi Sad 2015}) 11... a6 (11... Bd7 12. b5 Nce7 13. Qxd4 Qxd4 14. Nxd4 Nf6 15.
f3 Ned5 16. e4 Nb6 17. Be2 O-O 18. Kf2 Rfd8 19. Bf4 Be6 20. Nf5 Nh5 21. Bg5 f6
22. Be3 g6 23. Nd4 Bf7 24. a4 Nc4 25. Rhc1 Nxe3 26. Kxe3 Nf4 27. Kxf4 Rxd4 28.
Ke3 Rd7 29. Bc4 Rad8 30. Bxf7+ Kxf7 31. Rc4 Ke6 32. Rac1 Rd2 33. R1c2 R2d3+ 34.
Ke2 Ra3 35. Rb4 Rd7 36. Kf2 Ke5 37. Re2 Rd1 38. b6 a6 39. Rc2 Rad3 40. Rc7 Rd7
41. Rxd7 Rxd7 42. Ke3 Rd6 43. f4+ Ke6 44. a5 Rc6 45. Kd3 Rc1 46. Rc4 Rd1+ 47.
Ke3 Rd7 48. g4 Re7 49. Rc3 Kd6 50. Kd4 Rd7 51. Rc8 Rc7 52. h3 Rd7 53. h4 Re7
54. e5+ fxe5+ 55. fxe5+ Ke6 56. Rd8 Rf7 57. Ke4 Re7 58. Rd6+ Kf7 59. Kd5 Kg7
60. Rd8 Kf7 61. Kd6 Re6+ 62. Kc7 Re7+ 63. Rd7 Rxd7+ 64. Kxd7 {1-0 (64) Nastase,
A (1892)-Schiopu,A (1623) Baile Felix 2017}) 12. e4 (12. Ne5 Qb5 13. Qxb5 axb5
14. Nxc6 bxc6 15. Bf4 Nf6 16. Be5 Nd5 17. Bxg7 Nxb4 18. Kd2 Rg8 19. Bxd4 Bf5
20. e4 Bxe4 21. Re1 f5 22. a3 Rxa3 23. Bc5 Ra2+ 24. Kc3 Na6 25. Bb6 Kd7 26. f3
Bd5 27. Bd3 Rgxg2 28. Bxf5+ Kd6 29. Be3 Ra3+ {0-1 (29) Riess,A (2268)-Lampe,J
(2165) Germany 2015}) 12... dxe3 13. fxe3 Rb8 (13... Bd7 14. b5 Nce7 15. Ne5 (
15. Qb3 axb5 16. Ne5 Qe6 17. Qxe6 fxe6 18. Nxd7 Kxd7 19. Bxb5+ Nc6 20. O-O Nf6
21. a4 Kc7 22. Bc3 Rhf8 23. Rfc1 Rac8 24. a5 Rf7 25. a6 Kd6 26. axb7 Rxb7 27.
Ba6 Rbc7 28. Bxc8 Rxc8 29. Bxf6 gxf6 30. Ra4 Rb8 31. Ra6 Rc8 32. Kf2 Kd5 33.
e4+ Kd6 34. Ke3 Rc7 35. Rb6 Kd7 36. g4 h6 37. h4 Kd6 38. e5+ fxe5 39. g5 hxg5
40. hxg5 {1-0 (40) Colpe,M (2338)-Litwak,A (2230) Saarbruecken 2013}) 15... Nf6
16. Nxd7 Nxd7 17. bxa6 bxa6 18. Rc1 Ra7 19. Qa3 Qf6 20. Bb4 Nc6 21. Bd6 Qh4+
22. g3 Qe4 23. Rg1 h5 24. Bg2 {1-0 (24) Colpe,M (2391)-Wecker,M (2161) Erfurt
2015}) 14. b5 axb5 15. Qxb5 Qxb5 16. Bxb5 Nf6 17. Bc3 O-O 18. Bxf6 gxf6 19. Kf2
Be6 20. Be2 Ra8 21. Rhb1 Ra7 22. a4 Rd8 23. Rb6 Ne5 24. Nd4 Bd7 25. Nb5 Bxb5
26. Rxb5 Rd2 27. Ke1 Rc2 28. Kd1 Rc6 29. a5 Rca6 30. Rd5 Re6 31. Kd2 Kg7 32.
Bb5 Ra8 33. Ra3 Re7 34. h3 Rc7 35. Bd3 Rc6 36. Rb3 Ra7 37. Rdb5 Rc8 {1/2-1/2
(37) Gamb,R (1926)-Sigurdsson,J (2207) Lechenicher SchachServer 2012}) (10...
Qe7 11. Qa4 Bf5 (11... Qe4 12. b5 Ne5 13. Be3 Nf6 14. Qxd4 Nxf3+ 15. gxf3 Qe7
16. Rg1 Bf5 17. Rd1 O-O 18. Qd6 Qxd6 19. Rxd6 Be6 20. Rd2 Rfc8 21. Bd4 Kf8 22.
e3 Rc1+ 23. Rd1 Rxd1+ 24. Kxd1 Bxa2 25. Bd3 Rc8 26. Kd2 Bd5 27. e4 Be6 28. Ra1
a6 29. bxa6 bxa6 30. Rxa6 Nd7 31. f4 Nc5 32. Bxc5+ Rxc5 33. f5 Bc4 34. Ra8+ Ke7
35. Ra7+ Kf8 36. Bc2 f6 37. Ra8+ Ke7 38. Rh8 h6 39. Ra8 Bf7 40. f4 g6 41. fxg6
Bxg6 42. f5 Bf7 43. Rh8 h5 44. Bd1 Ra5 45. Rh7 Kf8 46. Bxh5 Bg8 47. Rc7 Ra3 48.
Rc3 Ra2+ 49. Rc2 Ra3 50. Bg4 Ke7 51. h3 Kd6 52. Rc3 Rxc3 53. Kxc3 Ke5 54. Kd3
Kf4 55. Bd1 Ba2 56. Bc2 Kg3 57. Kd4 Kxh3 58. e5 fxe5+ 59. Kxe5 Kg4 60. Kf6 Kf4
61. Kg7 Ke5 62. f6 Bc4 63. Bg6 Bd5 64. Bf7 Bf3 65. Bg8 Bh5 66. Bh7 {1-0 (66)
Bilchinski,A (2279)-Moufang,R (2288) Bayern 2015}) 12. b5 Ne5 13. b6+ Kf8 14.
Nxe5 Qxe5 15. Bb4+ Ne7 16. Qxa7 Re8 17. Qxb7 d3 18. Rd1 Qb2 19. a3 Kg8 20. e3
Bg4 21. Bxd3 Bxd1 22. O-O Ng6 23. Qd7 Qe5 24. Rxd1 h5 25. Bd6 Nf8 26. Qc7 Qg5
27. b7 h4 28. b8=Q h3 29. Qbb7 Qg4 30. Qxf7# {1-0 (30) Korley,K (2377)
-Lauridsen,J (2247) Copenhagen 2016}) (10... Qd5 11. Qb3 Qxb3 12. axb3 b5 13.
e3 dxe3 14. Bxe3 (14. Bc3 Nge7 15. Bxb5 exf2+ 16. Kxf2 O-O 17. Bc4 Ng6 18. b5
Nce7 19. Bd4 Bb7 20. Bxa7 Nf5 21. Rhe1 Nf4 22. Bc5 Nxg2 23. Rxa8 Bxa8 24. Re5
Bxf3 25. Bxf8 {1-0 (25) Kvetny,M (2367)-Niegsch,N (2096) Willingen 2015}) 14...
Nxb4 15. Bxb5+ Bd7 16. Bxd7+ Kxd7 17. Rxa7+ Rxa7 18. Bxa7 Nf6 19. O-O Rc8 20.
Bd4 Rc2 21. g3 Nbd5 22. Ra1 h6 23. Ne5+ Ke6 24. Ra6+ Kf5 25. Nxf7 Rd2 26. Bxf6
Nxf6 27. Nd6+ Kg6 28. Ne4 Rb2 29. Nxf6 gxf6 30. Rb6 h5 31. Kg2 h4 32. gxh4 {
1-0 (32) Bilchinski,A (2252)-Niklasch,O (2325) Ditzingen 2015}) (10... Qd6 11.
b5 Ne5 12. Bc3 Nxf3+ 13. gxf3 Ne7 14. Qxd4 Qxd4 15. Bxd4 Nf5 16. Bb2 Bd7 17. e3
Rc8 18. Bd3 O-O 19. Ke2 Bxb5 20. Rac1 Bxd3+ 21. Kxd3 f6 22. Rxc8 Rxc8 23. Rc1
Rxc1 24. Bxc1 Kf7 25. e4 Ne7 26. f4 {1/2-1/2 (26) Burnett,J (2172)-Stepanyan,H
(2016) West Bromwich 2013}) 11. Rc1 Qd6 (11... Qe7 12. e3 (12. Qa4+ Nc6 13.
Nxd4 Bd7 14. Nxc6 Bxc6 15. Rxc6 bxc6 16. Qxc6+ Qd7 17. Qxa8+ Ke7 18. Bb4+ Kf6
19. Qf3+ Kg6 20. Qg3+ Kf6 21. e4 Ne7 22. Bc3+ {1-0 (22) Perez Garcia,M (1576)
-Laureles,R (1120) Lechenicher SchachServer 2012}) 12... Nc6 13. Be2 dxe3 14.
Bxe3 Qb4+ 15. Bd2 Qd6 16. Qb3 Nf6 17. O-O O-O 18. Rfe1 Rb8 19. Qa4 Nd5 20. Rcd1
Re8 21. g3 Qg6 22. Qb5 Be6 23. Bd3 Qh5 24. Be4 a6 25. Qc5 Rbc8 26. Ng5 Ne5 27.
Qa3 Nf6 28. Bxb7 Rcd8 29. Nxe6 fxe6 30. h4 Rd3 31. Qa4 Red8 32. Qf4 Nf3+ 33.
Bxf3 Rxf3 34. Qc4 Rfd3 35. Qxe6+ Kh8 36. Qe7 Ng8 37. Qb4 R8d4 38. Qb2 Qg4 39.
Qb7 h5 40. a4 Nh6 41. Rc1 Rxd2 42. Re8+ Kh7 43. Qc8 Nf7 44. Qxg4 hxg4 45. Re7
Nd6 46. Rc5 Rxa4 47. Rh5+ Kg8 48. Rg5 Nf7 {0-1 (48) Pareschi,R (2052)-Tsenkov,
L (2191) FICGS 2015}) 12. e3 (12. g3 Nf6 13. Bg2 O-O 14. O-O Nc6 (14... Nxa2
15. Rc4 d3 16. e4 Qb6 17. e5 Nd5 18. Ng5 Ne7 19. Nxh7 Be6 20. Rh4 Ng6 21. Nf6+
gxf6 22. Qh5 Nxh4 23. exf6 Qd4 24. Qh6 Nf5 25. Qg5+ Kh7 26. g4 {1-0 (26)
Davidov,A (2312)-Davidov,D (2166) ICCF 2015}) 15. Bf4 Qd7 16. Ne5 Nxe5 17. Bxe5
Rd8 18. Qd2 Rb8 19. Bxb8 {1-0 (19) Grayland,S (2367)-Woodhouse,S (1719) ICCF
2015}) (12. Rc4 Nc6 13. Nxd4 Nge7 (13... Nxd4 $6 14. Bb4 Nf3+ 15. gxf3 Qxd1+
16. Kxd1 Be6 $4 ({Immer noch reichte} 16... Ne7 17. Rg1 g6 18. e4 Nc6 19. Bc3
Be6 20. Rxc6 bxc6 21. Bxh8 O-O-O+ 22. Kc2 Rxh8 $11 {zum Ausgleich}) 17. Rc7
Bxa2 ({Das kleinere Übel wäre} 17... Rd8+ 18. Kc2 Rd7 19. Rc8+ Rd8 20. Rxd8+
Kxd8 21. Bf8 Ne7 22. Bxg7 Rg8) 18. e4 a6 19. Kc2 b5 20. Rg1 Kd8 $2 21. Ba5 Ke8
22. Bh3 Nf6 23. Bb4 Kd8 24. Rb7 Be6 25. Bxe6 fxe6 26. Rgxg7 Ne8 27. Ba5+ Kc8
28. Rxh7 ({Nichts sprach gegen} 28. Rge7 e5 29. Rbd7 $18) 28... Rxh7 29. Rxh7
Nf6 30. Re7 Nh5 31. h4 Nf4 32. Rc7+ Kb8 33. Rf7 Nh5 34. Bc7+ Kc8 35. Be5 {
1-0 (35) Graf,F (2394)-Kammers,H (2145) Dresden 2012 EXT 2014 [Gutman,L]}) 14.
e3 O-O 15. Be2 Qg6 16. O-O Nxd4 17. Rxd4 Nc6 18. Rh4 Rd8 19. Qc1 Bf5 20. Bc3 f6
21. Qb2 Rd7 22. Bf3 Qf7 23. a4 Re8 24. Rf4 Bd3 25. Rc1 Bg6 26. a5 a6 27. Bxc6
bxc6 28. Qb6 Bd3 29. Qxc6 Rc7 30. Qd6 Bb5 31. Bb2 Rxc1+ 32. Bxc1 {1/2-1/2 (32)
Radovanovic,N (2415)-Brenjo,S (2466) Kragujevac 2015}) (12. Qa4+ Nc6 13. Rc4 (
13. e3 Nge7 14. Nxd4 O-O $11) 13... Bd7 14. Nxd4 Nxd4 15. Rxd4 Bxa4 16. Rxd6
Rc8 17. Rd4 Bd7 18. e3 Nf6 19. Bd3 O-O 20. Ke2 Be6 21. e4 {1/2-1/2 (21) Genser,
H (2258)-Guido,F (2361) St Veit 2015}) 12... dxe3 (12... Nf6) (12... Ne7 13.
Nxd4 O-O (13... Nbc6 14. Nb5 Qd7 15. Bc3 O-O 16. Be2 Qxd1+ 17. Rxd1 Rb8 18. O-O
(18. Rd2 a6 19. Nd6 Be6 20. O-O Nd5 21. Ba1 Rfd8 22. Ne4 Nb6 23. Rfd1 Rxd2 24.
Rxd2 Bc4 25. Bg4 Rd8 {1/2-1/2 (25) Mary,P (2311)-Avchinikov,V (2294) ICCF 2016}
) 18... Be6 19. a3 Nd5 20. Bb2 a6 21. Nd4 Nxd4 22. Bxd4 b5 23. Rc1 Rfc8 24.
Rfd1 f6 25. f4 h6 26. Kf2 b4 27. axb4 Nxb4 28. Rc5 Rxc5 29. Bxc5 a5 30. Rd6 Bb3
31. Rd7 Bf7 32. Rc7 Nd5 33. Ra7 Rb2 34. Ra8+ Kh7 35. Bd4 Ra2 36. Kf1 Ra3 37.
Ra7 Kg8 38. Kf2 Ra2 39. g4 Nb4 40. Kf1 Bd5 41. e4 Bb3 42. Ra8+ Kf7 43. Bb5 Rc2
44. Kg1 Nc6 45. Be3 {1/2-1/2 (45) Hunger,H (2341)-Avchinikov,V (2294) ICCF 2016
}) 14. Bc4 (14. Nb5 Nd3+ 15. Bxd3 Qxd3 16. Nc7 Rb8 (16... Qg6 17. O-O Bh3 18.
Qf3 Bg4 19. Qg3 Rac8 20. Bb4 Qe4 21. Qf4 Qxf4 22. exf4 Rfd8 23. Bxe7 Rd7 24.
Nb5 Rxc1 25. Rxc1 Rxe7 26. f3 Be6 27. Nxa7 h5 28. Rc2 Rd7 29. Nb5 Rd5 30. Nc7
Rd1+ 31. Kf2 Bd7 32. h4 g6 33. Kg3 Kg7 34. Re2 Bc6 35. Ne8+ Bxe8 36. Rxe8 Rd2
37. a4 b6 38. Ra8 Ra2 39. Ra6 f5 40. Kh3 Kf7 41. Rxb6 {1/2-1/2 (41) Bartsch,R
(2090)-Tedesco,M (2092) ICCF 2016}) 17. Bb4 Qe4 18. Qd4 Qxg2 19. Bxe7 Qxh1+ 20.
Kd2 Qg2 21. Bxf8 Bh3 22. Bd6 Qxf2+ 23. Kc3 Qxa2 24. Rg1 g6 25. Qf6 Qe2 26. Be5
Qxe3+ 27. Kb2 Qd2+ 28. Kb3 Qe3+ 29. Kb4 a5+ 30. Kxa5 Qc5+ 31. Ka4 Qc6+ 32. Kb4
Qxf6 33. Bxf6 h6 34. Rg3 Bf5 35. Nd5 Kh7 36. h4 Re8 {1/2-1/2 (36) Williamson,D
(2162)-Thompson,B (2343) ICCF 2015}) (14. Be2 $14) 14... Nbc6 15. Bc3 (15. Nxc6
Nxc6 16. Bc3 Qg6 17. O-O Rd8 18. Qb3 Rb8 19. Rfd1 Be6 20. Bxe6 Qxe6 21. Qxe6
fxe6 22. f4 Rxd1+ 23. Rxd1 Rd8 24. Rxd8+ Nxd8 25. Kf2 Nc6 26. e4 Kf7 27. Ke3 b5
28. g4 g6 29. g5 a6 30. h4 Ke7 {1/2-1/2 (30) Kantor,G (2506)-Kosic,D (2493)
Budapest HUN 2017}) 15... Ne5 16. Be2 Qg6 17. O-O Bh3 18. Bf3 Rab8 19. Kh1 {
1/2-1/2 (19) Unen,J (2501)-Gerola,G (2495) ICCF 2015}) (12... d3 13. Nd4 Nc6
14. Nxc6 bxc6 15. Bc3 d2+ 16. Qxd2 Qxd2+ 17. Kxd2 f6 18. Bc4 Ne7 19. e4 Bb7 20.
Ke3 O-O-O 21. Ba5 {1-0 (21) Kolanek,S (1832)-Ross,C (1238) Lechenicher
SchachServer 2016}) (12... Nc6 13. Nxd4 (13. Bc3 Nge7 14. Nxd4 O-O 15. Be2 Rd8
16. O-O Nxd4 17. Bxd4 Nc6 18. Bc3 Qxd1 19. Rfxd1 Rxd1+ 20. Bxd1 Be6 21. a3 Rc8
22. Rb1 b6 23. Bf3 f6 24. h4 Kf7 25. Be4 h5 26. Rb5 g6 27. a4 Ne7 28. Bd4 Bd7 {
1/2-1/2 (28) Colpe,M (2311)-Roth,J (2109) Naujac sur Mer 2013}) 13... Nxd4 14.
Bc3 (14. exd4 Ne7 15. Be2 O-O 16. O-O Qxd4 17. Bf3 Be6 18. Bxb7 Rab8 19. Bf3
Bxa2 20. Be3 Qxd1 21. Rfxd1 a5 22. Bc5 Rfe8 23. Bd6 Bb3 24. Re1 Nf5 25. Bxb8
Rxb8 26. Re5 Nd4 27. Rxa5 Nxf3+ 28. gxf3 Be6 29. Kg2 g6 30. Rc7 Kg7 31. Re5 Kf6
32. Ra5 Rb4 33. Rca7 h5 34. Ra4 Rb3 35. Ra3 Rb2 36. h4 Rb1 37. Ra1 Rb2 38. R1a4
Rb1 39. Rf4+ Kg7 40. Re7 Ra1 41. Re8 Rb1 42. Re7 Ra1 43. Rb7 Rc1 44. Rd4 Kf6
45. Rdb4 Ra1 46. Rb1 Ra3 47. Re1 Ra4 48. Kg3 Ra3 49. Rb2 Bd5 50. Rb6+ Be6 51.
Rbb1 Bf5 52. Rbc1 Ra4 53. Rc6+ Be6 54. Rb6 Ra2 55. f4 Ra3+ 56. f3 Kg7 57. Rexe6
fxe6 58. Rxe6 Kf7 59. f5 gxf5 60. Rh6 Ra4 61. Rxh5 Kg6 62. Rg5+ Kf6 63. Rg8 Kf7
64. Rb8 Kg6 65. Rb6+ Kg7 66. h5 Rc4 67. Rg6+ Kf7 68. Ra6 Kg7 69. Rb6 Ra4 70.
Rc6 Rb4 71. Rd6 Ra4 72. Rb6 Rc4 73. Rg6+ Kf7 74. f4 Ra4 75. Rg5 Kf6 76. h6 Ra3+
77. Kh4 Ra1 78. Rg3 Rh1+ 79. Rh3 Rxh3+ 80. Kxh3 Kg6 {1/2-1/2 (80) Camus de
Solliers,G (2351)-Koch,J (2455) Saint-Quentin 2014}) 14... Ne7 (14... Nf6 15.
Bxd4 (15. Qxd4 Qxd4 16. Bxd4 Bd7 17. Be2 Bc6 18. Bc5 Bxg2 19. Rg1 Bc6 20. Rxg7
Rg8 21. Rxg8+ Nxg8 22. Rc4 Nf6 23. Rh4 Ne4 24
  
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Toshak
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Dangerous pawn sacrifice
02/05/17 at 08:25:45
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I played the following game in correspondence chess as black and my opponent's 10. b4 looks very dangerous in my eyes. I managed to hold a draw but I'm not sure I played correct. Are there any improvements for both colours in the opening?
1. d4 d5 2. c4 e6 3. Sc3 c5 4. cxd5 exd5 5. Sf3 Sc6 6. dxc5 d4 7. Sa4 Lxc5 8. Sxc5 Da5+ 9. Ld2 Dxc5 10. b4 Sxb4 11. Tc1 Dd6 12. e3 dxe3 13. Lc3 Dxd1+ 14. Kxd1 Sxa2 15. Lxg7 Sxc1 16. Kxc1 Ld7 17. fxe3 Tc8+ 18. Kd2 f6 19. Lxh8 Kf7 20. Ld3 Se7 21. Tb1 b6 22. Ta1 a5 23. Se5+ fxe5 24. Lxe5 Tc5 25. Ld4 Th5 26. h3 Tg5 27. Tf1+ Ke8 28. Tf2 b5 29. Lxh7 a4 30. Ld3 b4 31. Lc4 Sc6 32. h4 Tg4 33. Lf7+ Ke7 34. Lh5 Sxd4 35. Lxg4 Sb3+ 36. Kc2 Lxg4 37. Tf4 Le6 38. Txb4 Sa5 39. Kc3 a3 40. Ta4 Sc4 41. e4 Sd6 42. e5 Sf5 43. Txa3 Sxh4 44. g4 Sf3 45. Ta7+ Ld7 46. Txd7+ Kxd7 1/2-1/2
  
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