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Главная страница Справка Коды ЭШД E56

Коды ЭШД

E53 E54 E55

E56

E57 E58 E59

E56

Код энциклопедии шахматных дебютов (ЭШД)

Описание

RU: Защита Нимцовича. Система Рубинштейна: 7...Кc6
EN: Nimzo-Indian: Rubinstein: Main Line: 7...Nc6

Ходы

1. d4 Кf6 2. c4 e6 3. Кc3 Сb4 4. e3 0-0 5. Кf3 d5 6. Сd3 c5 7. 0-0 Кc6 8. a3 d:c4 9. С:c4 Сa5

Дебюты

Защита Нимцовича

[Event "Zagreb Tournament of the Peace"]
[Site "Zagreb"]
[Date "1965.04.21"]
[Round "7"]
[White "Gligoric, Svetozar"]
[Black "Ivkov, Borislav"]
[Result "0-1"]
[ECO "E56"]
[Annotator "Bulletin"]
[PlyCount "72"]
[EventDate "1965.04.12"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "CRO"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
Ba5 9. cxd5 exd5 10. dxc5 Bxc3 11. bxc3 Bg4 12. c4 Ne5 13. Bb2 (13. cxd5 $5
Bxf3 (13... Qxd5 $2 14. Bxh7+ Kxh7 15. Qxd5 Nxd5 16. Nxe5 $18) (13... Nxf3+ $2
14. gxf3 Bh3 15. e4 $1 Nd7 16. Kh1 Bxf1 17. Bxf1 $16 {Donner,J-Pietzsch/Havana/
1965/}) 14. gxf3 Qxd5 15. Be2 Qxc5 16. Bb2 Rfd8 17. Bd4 Qe7 18. Qc2 $1 $14)
13... Nxf3+ 14. gxf3 Bh3 15. Re1 (15. cxd5 $5 Qxd5 16. Bxf6 gxf6 17. Kh1 $14 (
17. Bxh7+ $2 Kxh7 18. Qxd5 Rg8+ $19)) (15. Kh1 dxc4 16. Bxc4 Bxf1 17. Qxf1 $10
{Gligoric,S-Nicevski/JUG-ch/1975/ Gligoric,S-Keller,D/Zuerich/1961/}) 15... Ne4
$1 16. f4 $2 (16. Be5 Qg5+ 17. Bg3 Nxg3 18. hxg3 dxc4 19. Bxc4 Qxc5 $10 {
Furman,S-Taimanov,M/URS-ch/1954/}) 16... Qh4 17. Qf3 Nd2 $1 18. Qe2 (18. Qg3 $5
Qxg3+ 19. fxg3 Nf3+ 20. Kf2 Nxe1 21. Rxe1 dxc4 22. Bxc4 Rac8 23. Bd4 $10) 18...
dxc4 19. Bc2 Rad8 $17 20. f3 Qh5 21. Kh1 $2 (21. Bd1 $5) 21... Nxf3 22. Rg1 Bg4
$1 {/\Nh2,Ng1,Rd2.} 23. Rxg4 Qxg4 24. Bc3 Rfe8 $1 25. e4 Nxh2 26. Qg2 Qf3 27.
Bb4 c3 28. Qxf3 Nxf3 29. Bxc3 Nd4 30. Rg1 Nxc2 31. Rxg7+ Kf8 32. Rxh7 Nd4 33.
e5 Ke7 34. Kg2 Nf5 35. Bb4 Ke6 36. Kf3 Rh8 0-1

[Event "Interpolis-01"]
[Site "Tilburg"]
[Date "1977.09.28"]
[Round "5"]
[White "Huebner, Robert"]
[Black "Andersson, Ulf"]
[Result "1-0"]
[ECO "E56"]
[WhiteElo "2600"]
[BlackElo "2565"]
[Annotator "Ftacnik,L"]
[PlyCount "113"]
[EventDate "1977.09.23"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "NED"]
[EventCategory "14"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 d5 6. Nf3 O-O 7. O-O dxc4 8. Bxc4
Nc6 9. a3 Ba5 10. Qd3 a6 11. dxc5 Qxd3 12. Bxd3 Bxc3 13. bxc3 Rd8 $6 (13... Nd7
$6 14. a4 Nxc5 15. Bc2 Rd8 16. Ba3 Nd7 $16) (13... Na5 $1 14. Rb1 (14. Bc2 Bd7)
(14. a4 Nb3 15. Rb1 Nxc5 16. Bc2 Bd7 17. Ba3 Rfc8) 14... Rd8 15. Bc2 Bd7 16. a4
Be8 $10) 14. Bc2 Bd7 $6 (14... Rd5 15. a4 (15. c4 Rxc5 16. Bd3 Ne5 $10) 15...
Rxc5 16. Ba3 Rd5 (16... Rxc3 $1 17. Rfc1 Kh8 (17... g6 $2 18. Bb2) (17... Nd5
$2 18. Bb2) 18. Ng5 Nd8 19. Be7 h6 20. Bxf6 (20. Rd1 Nc6 21. Bxf6 Rxc2 22.
Nxf7+ Kg8 $17) 20... gxf6 21. Ne4 Rc6 22. Nxf6 Kg7 23. Nh5+ Kf8 24. Be4 Rxc1+
25. Rxc1 Bd7 26. a5 Bc6 $10) 17. Rab1 (17. Rfb1 Na5 18. Bb4 Nc6 19. c4 $2 Nxb4
20. cxd5 Nxc2 21. Ra2 exd5 22. Rxc2 Bf5) (17. Nd4 Na5 18. Bb4 Nc4 19. Bb3 Nd2
20. Bxd5 Nxf1 21. Ba2 Nd2 (21... a5 22. Bd6 Ne4 23. Bc7 Nfd2 24. Rd1 $16) 22.
c4 Nde4 23. f3 a5 24. Ba3 Nc3 25. Bb3 $16 {P b2}) 17... Na5 18. Bb4 Nc4 19. Bb3
b5 $10) (14... Na5 15. a4 Nc4 16. Rb1 (16. a5 Bd7 17. Bb3 Bb5 18. Nd4 Rdc8 $10)
(16. Bb3 Na5 17. Ba2 Bd7 (17... Ne4 18. Ba3 $13 Nxc3 $2 19. Bb4 Nxa2 20. Bxa5
$18) 18. Ne5 Be8 {<->a4}) 16... Rd5 17. Rd1 Rxd1+ 18. Bxd1 Nd5 19. Be2 Nxc3 20.
Bxc4 Nxb1 21. Bb2 {P 22. d3} b5 $1 22. cxb6 (22. Bd3 bxa4 23. Bxb1 Rb8 $19)
22... Bb7 23. Bd3 Rd8 24. Bd4 Na3 (24... Bxf3 $6 25. gxf3 e5 (25... Nd2 26.
Bxa6 Nxf3+ 27. Kg2 Nxd4 28. exd4) 26. Bxe5 Rxd3 27. b7)) 15. a4 Na5 16. Ne5 Be8
17. Ba3 Rd5 $2 (17... Rd2 18. Ra2 {P 19. h7} Rad8 19. Bb4 Nc6 20. Nc4) (17...
Nd7 $142 18. Bb4 Nxe5 19. Bxa5 Rdc8 (19... Rd2 20. Be4 (20. Ra2 Nc4) 20... Bc6
21. Bxc6 Nxc6 22. Bb6 Kf8 23. Rfd1 Rxd1+ 24. Rxd1 Ke7 25. Kf1 Rc8 26. Rb1 $36 {
<->b7}) 20. Bb4 (20. Be4 Bc6 21. Bxc6 Rxc6) 20... Bc6 $14) 18. f4 Rdd8 (18...
Rd2 $2 19. Ra2 Rad8 20. Bb4 Nc6 21. Nc4) (18... Nd7 $2 19. Be4 Rd2 20. Bc1 Re2
(20... Nb3 21. Bxd2 Nxd2 22. Nxd7 Nxf1 23. Nb6 $18) 21. Bd3 Nb3 22. Bxe2 Nxa1
23. Nxd7 Bxd7 24. Bd1 {P 25. b2+-}) 19. Bb4 Nc6 20. Nc4 Nd5 21. Rab1 Rab8 (
21... a5 22. Ba3 Rab8 (22... Nxc3 23. Rxb7 $18) 23. Rfc1 Nxc3 24. Bxh7+ Kxh7
25. Rxc3) 22. Rfc1 (22. e4 $2 Ndxb4 23. cxb4 Rd4) (22. Kf2 $6 Ncxb4 23. cxb4 b5
24. axb5 $2 (24. Nd6 bxa4 25. Nxe8 Rxe8 26. Bxa4 Rec8 $10) (24. cxb6 Nxb6 25.
Nxb6 Rd2+ 26. Kg3 Rxc2 27. a5 Bc6 28. Rf2 (28. Rfc1 Rxg2+ 29. Kh3 Be4 30. Rc4
Bxb1 31. Kxg2 Bd3 $10) (28. Rbc1 Rxg2+ 29. Kh3 Bb7 30. Nd7 Rd8 31. Rc7 Bd5 {
P 32... d2, 32... b2} 32. Nb6 Re2 33. Nxd5 exd5 $10) 28... Rc3 29. Re1 Rd8 $14)
24... Bxb5 25. Bd3 Nc3 $19) 22... Kf8 (22... Ncxb4 23. cxb4 b5 (23... Nc3 24.
Bxh7+ Kxh7 25. Rxc3 Bxa4 26. Nd6) 24. cxb6 Nxb6 25. Nxb6 Rxb6 26. Bd1 Rdb8 27.
Rc4) 23. Kf2 f6 (23... Ncxb4 24. cxb4 b5 25. cxb6 Nxb6 26. Nxb6 Rxb6 27. Rd1
Rc8 28. Rb2 Rc4 (28... Rxc2+ 29. Rxc2 Bxa4 30. Rc8+ $18) 29. Rd4) (23... Ncxb4
24. cxb4 Nc3 25. Ra1 Nd5 26. Rcb1 Nc3 27. Rb2) (23... a5 24. Nxa5 (24. Bxa5
Nxa5 25. Nxa5 Nxc3 26. Rxb7 Rxb7 27. Nxb7 Rd2+ 28. Ke1 Re2+ 29. Kf1 Bc6 30. Bd3
(30. Na5 Bxg2+ 31. Kg1 Na2 32. Bd3 Rxe3) 30... Bxg2+ 31. Kg1 Bxb7 32. Rxc3 Rxe3
) 24... Ndxb4 25. cxb4 Nxa5 26. bxa5 Rd2+ 27. Ke1 (27. Kf3 f5 28. a6 Bc6+ 29.
e4 Rxc2 30. Rxc2 Bxe4+ 31. Ke3 Bxc2 32. Rxb7 Rc8 33. c6 (33. a7 Be4 34. Rb8 Re8
) 33... Be4 34. c7 Ke7 $14) 27... Rxg2 28. Be4 Rg1+ 29. Kd2 Rxc1 30. Rxc1 Bc6 (
30... Bxa4 31. Rb1 Ra8 32. Bxb7 Rxa5 33. Ra1 Rb5 34. c6 $18) 31. Bxc6 bxc6 32.
Kc3 Ra8 (32... Ke7 33. Rd1 Ra8 34. Kb4 Rb8+ 35. Ka3 Ra8 36. Rd6) 33. Rb1 Rxa5
34. Rb8+ Ke7 35. Kb4 Ra7 36. a5 Kd7 37. Rb6 Kc7 38. a6 {P 39. a5+-}) 24. g3 (
24. Nd6 $6 a5 25. Ba3 Nxc3 26. Rxb7 (26. Rb6 Na2 27. Ra1 Nab4 28. Bb3 e5 $132)
(26. Rb2 Ne7 27. Nxe8 Kxe8 28. Bb3 Ne4+ 29. Ke2 Nd5 $132) 26... Rxb7 27. Nxb7
Rd2+ $132) 24... Bg6 (24... Ke7 25. Bxh7 g6 26. h4 Kf8 27. h5 gxh5 28. Bc2) (
24... h6 25. Kf3 Ke7 26. h4 $142 {P 27.g4, 28.h5 (<->g6), d1, b2, a3} (26. Rb2
$6 a5 27. Nxa5 Ndxb4 28. cxb4 Nxa5 29. bxa5 Rd2 30. Rcb1 f5) (26. Bd1 $6 Bg6
27. Rb2 Bd3 28. Be2 (28. Nd6 Ndxb4 29. cxb4 b6 $13) 28... Bxe2+) 26... g5 27.
hxg5 hxg5 28. fxg5 fxg5 29. Rh1) 25. Bxg6 hxg6 26. e4 Nde7 27. Ba3 Rd7 (27...
Rd3 28. Ke2) 28. Rc2 (28. Nd6 $6 Na5 29. c4 Kg8 30. Bb4 Nac6 31. Bc3 Nc8 32. e5
Nxd6 33. cxd6 f5) 28... Kg8 29. Ke2 Nc8 30. Rcb2 {If now the knight c6 moves
White playes a5+- and if the black rook leaves the d-file, the white rook
occupies this file.} Kh7 (30... Kf8 31. Na5 $2 Nxa5 32. c6+ Re7 33. Rxb7 (33.
cxb7 Na7 34. Bd6 N7c6) 33... Ra8 34. c7 Ra7 $19) (30... N8e7 $2 31. Rb6 $18 {
P 32. d6 a5 33. a6}) 31. h4 (31. Nd6 Nxd6 32. cxd6 Na5 33. Kd3 Rc8 {P 34... c4
[]}) 31... Kg8 32. Ke3 Kh7 33. g4 Kg8 34. Rg2 (34. h5 gxh5 (34... Kh7 35. Rh2
$40 {+-}) 35. gxh5 Kh7 36. Rg2 N8e7 (36... Kh6 $2 37. Rg6+ Kh7 38. Rbg1 b5 39.
cxb6 Nxb6 40. Nxb6 Rxb6 41. Bf8 Rbb7 42. h6 $18) 37. Rbg1 Ng8 (37... Rg8 38.
Nd6 Na5 39. Kf3 Nc8 (39... Rc7 40. Rxg7+ Rxg7 41. Rxg7+ Kxg7 42. Ne8+ Kh6 43.
Nxc7 e5 44. Kg4 exf4 45. Bc1 $18) 40. f5 e5 (40... exf5 41. Nxf5 Nc4 42. Bc1
Ne5+ 43. Ke2 $16 {P c1-e3-d4/ c1-h6}) (40... Nxd6 41. fxe6 Re7 42. cxd6 Rxe6
43. Kf4 Re5 (43... Nc4 $2 44. d7 Nxa3 45. Rxg7+ $18) (43... Nc6 44. Rb1) 44.
Rg6 {P45.h6} Rxh5 45. d7 Nc6 46. Be7 Rh6 (46... Rh4+ $2 47. Ke3 Rh6 48. Rxh6+
Kxh6 49. Bxf6 $18) 47. Rxh6+ Kxh6 48. d8=Q (48. Bxf6 $2 Rf8) 48... Nxd8 49. Kf5
g6+ 50. Kxf6 Kh5 51. e5 Nc6 52. e6 $18) 41. h6 Nxd6 42. cxd6 Nc4 43. hxg7 Rgxg7
44. Rxg7+ Rxg7 45. Rxg7+ Kxg7 46. d7 $18) 38. Nd6 b6 39. cxb6 Rxb6 40. f5 e5 (
40... Rb3 41. fxe6 Rxc3+ 42. Kf4 {P 43. b2, 44. f5+-}) 41. Ne8 Rb3 42. Rxg7+
Rxg7 43. Rxg7+ Kh8 44. Bf8 Rb8 45. Rc7 Rxe8 46. Bg7+ Kh7 47. Bxf6+ Nce7 48. Bg5
{P49.f6+-}) 34... N8e7 (34... Kh7 35. h5 g5 (35... gxh5 36. Rh2 (36. Rh1 $6 b5
$132) 36... g6 37. gxh5 g5 38. fxg5 fxg5 39. Rf2 {P 40. f6+-} Kg7 40. Rg1 $18)
(35... N8e7 36. hxg6+ Nxg6 (36... Kxg6 37. Nd6 {P38.f5}) 37. Nd6 Na5 38. Rh2+
Kg8 39. Rbh1 Rxd6 40. cxd6 Nc4+ 41. Kd4 Nxa3 42. f5 exf5 43. gxf5 Ne5 (43...
Nf8 44. Ra2 $18) 44. Rh8+ Kf7 45. Rxb8 Nc6+ 46. Kc5 Nxb8 47. Kb6 $18) 36. fxg5
fxg5 37. Ke2 {P 38. c1} g6 38. Rh2 $18) 35. h5 Rbd8 (35... gxh5 36. gxh5 Kh7 {
compare 34... h7}) 36. Nd6 Na5 37. Kf3 gxh5 (37... Nc8 38. hxg6 Nxd6 39. cxd6
Nc4 40. Rh1 {P 41. dg2+-} Nxd6 41. Rgh2 Kf8 42. e5 $18) 38. gxh5 Nc8 (38... Kh7
39. Rbg1 Nc8 40. f5 e5 41. h6 gxh6 42. Rg6 Nxd6 43. cxd6 $18) 39. Bb4 (39. f5
$2 Nxd6 40. fxe6 Re7 41. cxd6 Rxe6 42. Rbg1 Rd7 43. h6 g5 44. Kg4 Nc4 45. Kf5
Kf7 {P 46... e3#}) 39... Nc6 40. h6 Nxd6 (40... Kh7 41. hxg7 Rxg7 42. Rxg7+
Kxg7 43. Nxb7 $18) 41. cxd6 Kh7 (41... Nxb4 42. Rxb4 {P43.e5} Rxd6 43. Rxg7+ {
P 44. bb7+-}) 42. hxg7 Rxg7 43. Rxg7+ Kxg7 44. c4 (44. Bc5 Rd7 45. Rd1 e5 46.
f5 (46. Kg4 Kf7 47. Kf5 (47. fxe5 Nxe5+ 48. Kf5 Nc4 49. Rh1 Nxd6+ 50. Bxd6 Rxd6
51. Rh7+ Ke8 52. Rxb7 Rc6 $14) 47... Ne7+ $14) 46... Na5 47. Bb6 Nc4 48. Bc7
Kf8 $16) (44. Ba3 Na5 45. e5 Nc4 (45... Kg6 46. Ke4 $18) 46. Rxb7+ Kg6 47. Ke4
(47. Bc5 fxe5 48. fxe5 (48. d7 Kf6 49. Ke4 exf4 50. Rc7 f3 $14 {/=}) 48... Kf5
$14 {/=}) 47... Nxa3 48. Re7 Nb1 49. Rxe6 (49. c4 $2 Nd2+ 50. Kd3 Nb3 51. Rxe6
$4 Nc5+ $19) 49... Nxc3+ 50. Kd4 Nxa4 51. Rxf6+ Kg7 $13) 44... e5 (44... Nxb4
45. Rxb4 Rxd6 46. Rxb7+ Kg6 47. Ke3 {P48.c5} e5 48. f5+ (48. fxe5 $6 fxe5 49.
c5 Rd4 50. Rb6+ Kg5 51. Rxa6 Rc4 52. c6 Rc3+ 53. Kd2 Rc5) 48... Kg5 49. Rg7+
Kh5 50. Rg6 a5 51. c5 Rc6 52. Kd3 Rxc5 53. Rxf6 Kg5 54. Rg6+ Kf4 55. f6 Rc8 56.
f7 Rd8+ 57. Kc4 Rf8 58. Rf6+ Kxe4 59. Kc5 Kd3 60. Kd6 e4 61. Ke7 Rxf7+ 62. Kxf7
e3 63. Re6 e2 64. Ke7 Kd2 65. Kd6 e1=Q 66. Rxe1 Kxe1 67. Kc5) (44... b6 45. Ba3
Nd4+ (45... Na5 46. c5 bxc5 (46... Nc4 47. c6 Nd2+ 48. Ke2 Nxb1 49. c7 $18) 47.
Bxc5 {P 48. b6} Nc4 48. Rb7+ Kg6 49. d7 Kf7 50. Ke2 $18) 46. Ke3 Nc2+ 47. Kd3
Nxa3 48. Rxb6 Rc8 (48... Rh8 49. c5 Rh3+ 50. Ke2 Nc4 51. d7 Re3+ 52. Kf2 Rd3
53. Rb7 Kg6 (53... Kf8 54. c6 Ke7 55. Rb8 {P 56. e8+-}) 54. c6 Na5 55. c7 $18)
(48... Kf7 49. c5 e5 (49... Ke8 50. e5 $18) 50. Rb3 Rc8 51. d7 Rd8 52. c6) 49.
c5 Rxc5 50. d7 $18) (44... f5 45. Bc3+ Kf8 46. c5 Rd7 47. Rh1 b6 (47... Ke8 48.
Rh8+ Kf7 49. Rh6 fxe4+ 50. Kxe4 Nd8 51. Bf6 $18) 48. Rh8+ Kf7 49. Rc8 Na7 50.
c6 Rxd6 51. Rc7+ Kg6 52. Be5 $18) 45. c5 Rd7 (45... Nd4+ 46. Kf2 Rd7 47. f5 Kf8
48. Bc3 Nc6 49. Ke2 Ke8 50. Kd3 Kd8 51. Kc4 Kc8 52. Kd5 Rf7 53. Be1 {P 54. h4,
b1-g1-g6+-}) 46. Bc3 Kf7 (46... exf4 47. Kxf4 {P f5-e6+-}) 47. f5 (47. Rh1 $142
b6 (47... exf4 48. Rh6 Ne5+ 49. Kxf4 Ke6 50. Bxe5 $18) 48. Rh7+ Ke8 49. Rh8+
Kf7 50. Rc8 Na7 51. c6 Rxd6 52. Rc7+ Kg6 53. Bb4 Rd4 (53... Rd3+ 54. Kg4 Rd4
55. f5+ Kh6 56. Bf8#) 54. Be7 $18) 47... Ke8 48. Rh1 Rf7 (48... b6 49. Rh8+ Kf7
50. Rc8 Na7 51. c6 Rxd6 52. Rc7+ Ke8 53. Bb4 Rd4 54. Rxa7 Rxb4 55. Ra8+ {
P56.c7+-}) (48... Rg7 49. Rh8+ Kf7 (49... Kd7 50. Rf8 Rh7 51. Kg4 Rg7+ 52. Kh5
$18) 50. Rc8 Rh7 51. Rc7+ Kg8 52. Rxh7 Kxh7 53. d7 Kg7 54. Ba5 $18) 49. Rh6 Nb8
(49... Kd7 50. Kg4 b6 51. cxb6 Kxd6 52. Kh5 $18) 50. Be1 (50. Bd2 $142 Nd7 51.
Be3 Rf8 (51... Nf8 52. Rh8 Kd7 53. Bh6 Rh7 54. Rxh7+ Nxh7 55. Kg4 $18 {<-> h7})
52. Bf2 Rf7 {White gained a tempo.}) 50... Nd7 51. Bf2 Nf8 (51... Kd8 52. Ke2
Kc8 53. Kd3 {PKd5+-}) (51... Rg7 52. Rh8+ Nf8 53. Be3 $18) (51... Rf8 52. Ke2
Rg8 53. Kd3 Rg2 54. Rh8+ Kf7 55. Rd8 $18) 52. Ke3 (52. Ke2 Kd7 53. Bh4 Rh7 54.
Rxh7+ (54. Rxf6 $2 Rxh4 55. Rxf8 Rxe4+) 54... Nxh7 55. Kd3 Kc6 56. Kc4 a5 57.
Be1 (57. Kc3 $6 Nf8 58. Bxf6 Nd7 59. Be7 Nxc5 60. f6 Nxe4+) 57... Ng5 58. Kd3
Kxc5 59. d7 Nf7 60. Bxa5 b6 61. Be1 Kc6) 52... Kd7 53. Bh4 Nh7 (53... Rh7 54.
Rxf6 Rxh4 55. Rxf8) 54. Kd3 Kc6 55. Kc4 b6 (55... Nf8 56. Rxf6 Rxf6 57. Bxf6
Nd7 58. Be7 Nxc5 59. f6 $18) (55... a5 56. Rg6 Rf8 (56... b6 57. cxb6 Kxd6 $18
(57... Kxb6 58. Kd5 $18)) 57. Rg7 $18) 56. cxb6 Kxd6 57. Kb4 {Huebner} (57. Kb4
Kc6 58. Ka5 Kb7 59. Rg6 Nf8 (59... Kc6 60. Kxa6 Rb7 61. a5 (61. Bxf6 Rxb6+ 62.
Ka5 $18) (61. Bf2 $18) 61... Rb8 62. Rg7 $18) 60. Rxf6 Rxf6 61. Bxf6 Nd7 62.
Bg7 (62. Be7 Nb8 63. Kb4 Nc6+ (63... Kxb6 64. f6) 64. Kc5 Nxe7 65. f6 Ng6 66.
a5 {P 67. d6+-}) 62... Nb8 63. Kb4 Kxb6 64. Kc4 $18) 1-0

[Event "Lyon zt"]
[Site "Lyon"]
[Date "1990.??.??"]
[Round "4"]
[White "Lautier, Joel"]
[Black "Winants, Luc"]
[Result "1-0"]
[ECO "E56"]
[WhiteElo "2500"]
[BlackElo "2455"]
[Annotator "Ftacnik,L"]
[PlyCount "121"]
[EventDate "1990.04.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "FRA"]
[EventCategory "8"]
[SourceTitle "CBM 018"]
[Source "ChessBase"]
[SourceDate "1990.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Ba5 (8... Bxc3 9. bxc3 dxc4 10. Bxc4 Qc7) 9. h3 Qe7 10. Qc2 dxc4 11. Bxc4 Bd7
12. d5 $1 exd5 13. Nxd5 Nxd5 14. Bxd5 Bc7 15. e4 Rac8 16. Be3 b6 17. Rad1 h6
18. Rfe1 Qf6 19. Qe2 Ne5 20. Nh2 (20. Nxe5 $6 Bxe5 $10) 20... Ng6 21. Qh5 Nf4
22. Bxf4 Bxf4 23. e5 $1 Bxh2+ 24. Kxh2 Qf4+ (24... Qxf2 $6 25. Rf1 $40 {x f7})
25. Kg1 Be6 26. g3 Qf5 $2 (26... Qa4 $5 $14) 27. Qxf5 Bxf5 28. g4 Bd7 29. f4 c4
30. f5 Ba4 $6 31. Rd4 Rfd8 (31... b5 32. e6 $18) 32. Rxc4 Rxc4 33. Bxc4 Kf8 34.
Kf2 Rd4 35. b3 Bc6 36. Re3 Ke7 37. Rc3 Rd2+ 38. Ke3 Rh2 39. Bf1 Kd7 40. b4 Rh1
41. e6+ $1 fxe6 42. fxe6+ Kd8 (42... Kd6 $2 43. Rxc6+ Kxc6 44. Bg2+) 43. Kf2
Ba8 44. Rd3+ Ke7 45. Rd7+ Kxe6 46. Rxa7 Bd5 47. Rxg7 $18 Ke5 48. Rg6 Rh2+ 49.
Kg3 Ra2 50. Rxh6 Rxa3+ 51. Kh4 b5 52. Rb6 Bc4 53. Bxc4 bxc4 54. Rc6 Kd5 55.
Rc5+ Kd4 56. g5 c3 57. g6 Ra1 58. Kh5 Rg1 59. h4 Kd3 60. Kh6 c2 61. g7 {
Ftacnik,L} 1-0

[Event "RUS-chT 12th"]
[Site "Sochi"]
[Date "2005.04.24"]
[Round "6"]
[White "Iljushin, Alexei"]
[Black "Aronian, Levon"]
[Result "0-1"]
[ECO "E56"]
[WhiteElo "2543"]
[BlackElo "2693"]
[Annotator "Gavrikov,V"]
[PlyCount "130"]
[EventDate "2005.04.19"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Saratov Ekonomist SGSEU"]
[BlackTeam "Tomsk 400"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "RUS"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Ba5 {A rare continuation nowadays.} 9. dxc5 {This reply is not dangerous for
Black.} ({The alternatives are:} 9. h3 Re8 (9... Qe7 10. Qc2 dxc4 11. Bxc4 cxd4
12. exd4 Rd8 13. Rd1 Bb6 14. Be3 Nd5 15. Nxd5 exd5 16. Ba2 $14 {1/2-1/2 Graf,
A-Pelletier,Y/Mallorca 2004/CBM 104 no vc (31)}) 10. cxd5 exd5 11. dxc5 Bxc3
12. bxc3 Qa5 13. Qc2 (13. Qb3 $142 $5 Qxc5 14. c4 Be6 15. Qb5 Qe7 16. cxd5 Bxd5
17. Bb2 Rad8 18. Rad1 $14 {1-0 Mikhalchishin,A-Lukez,F/Cappelle la Grande 1989/
TD (40)}) 13... Qxc5 14. Bb2 Be6 15. Rac1 Rac8 16. Ng5 h6 17. Nxe6 fxe6 18. c4
d4 19. exd4 Nxd4 20. Qb1 e5 21. Rce1 b6 22. Re3 e4 $1 (22... Rcd8 23. Rfe1) 23.
Bxe4 Nxe4 24. Rxe4 Ne2+ 25. Kh2 Rxe4 26. Qxe4 Qxc4 27. Qg6 Qf7 {1/2-1/2
Grigoriants,S-Landa,K/Sochi 2005/CBM 107_01 (27)}) (9. Na4 cxd4 10. exd4 dxc4
11. Bxc4 h6 12. Qd3 Bc7 13. Nc3 b6 (13... e5 $5 14. d5 Ne7 15. Rd1 Bd6 $13 {
0-1 Brinck Claussen,B-Fries Nielsen,N/Vejle 1982/MCD (42)}) 14. Rd1 Bb7 15. b4
Rc8 16. Bb2 Bb8 $11 {1-0 Portisch,L-Browne,W/Amsterdam 1971/MCL (39)}) (9. Ne2
cxd4 (9... dxc4 10. Bxc4 Bb6 11. dxc5 Bxc5 12. b4 Qxd1 13. Rxd1 Be7 14. Bb2 Bd7
15. Rac1 Rfd8 16. Ned4 Nxd4 17. Nxd4 a6 $11 18. Bb3 Rac8 19. Rxc8 Bxc8 20. Nf3
Rxd1+ 21. Bxd1 {1/2-1/2 Jurka,M-Lechtynsky,J/Ceske Budejovice 1995/EXT 97 (21)}
) 10. exd4 dxc4 11. Bxc4 h6 12. Bf4 (12. Be3 Ne7 13. Qd3 a6 14. Rad1 b5 15. Ba2
Bb7 $15 {0-1 Gerhold,M-Schroll,G/Hartberg 2004/CBM 101 ext (45)}) 12... Bc7 13.
Bg3 Bxg3 14. hxg3 Qd6 15. Qd3 b6 16. Rad1 Bb7 17. Nf4 Ne7 18. Ne5 Ned5 $132 {
1/2-1/2 Spassky,B-Kozma,J/Varna 1958/EXT 2001 (41)}) (9. cxd5 {(the critical
line)} exd5 10. dxc5 (10. Ne2 c4 11. Bc2 Bc7 12. b3 b5 $5 13. a4 $2 b4 $17 {
1/2-1/2 Buehl,W-Snyder,R/Palo Alto 1981/EXT 2000 (26)}) 10... Bxc3 11. bxc3 Bg4
(11... Qa5 12. Qc2 (12. a4 $5 $146 Qxc3 13. Ba3 Bg4 14. Qb1 $14) 12... Qxc5 13.
a4 Re8 14. Ba3 Qa5 15. Rab1 Qc7 16. c4 dxc4 17. Bxc4 Be6 18. Bxe6 Rxe6 19. Rfd1
$14 {1/2-1/2 Timman,J-Kaplan,J/Amsterdam 1974/MCL (27)}) 12. c4 $1 (12. Rb1 Qc8
13. h3 Bh5 14. Be2 Rd8 15. Bb2 Ne4 $132 {0-1 Panno,O-Averbakh,Y/Buenos Aires
1954/MCL/[ChessBase] (49)}) 12... Ne5 (12... d4 13. Be2 $5 {1-0 Vaganian,
R-Shabanov,Y/Daugavpils 1971/EXT 2001 (21)} dxe3 14. Bxe3 $14) 13. cxd5 ({
perhaps more promising than} 13. Bb2 Nxf3+ 14. gxf3 Bh3 15. cxd5 (15. Re1 Ne4
16. Be5 Qg5+ 17. Bg3 Nxg3 18. hxg3 dxc4 19. Bxc4 Qxc5 20. Qd5 Qc8 $11 {1/2-1/2
Krogius,N-Taimanov,M/Budapest 1965/EXT 2001 (30)}) 15... Qxd5 (15... Bxf1 16.
Bxf6 Qxf6 17. Bxf1 $44) 16. Bxf6 gxf6 17. Kh1 Rfd8 18. Rg1+ Kh8 19. Be2 Qxc5
20. Qa4 Bf5 21. Qh4 Qe7 22. e4 Bg6 23. Bc4 Rac8 24. Bd5 Rc3 25. Rg3 Rdc8 $13 {
1/2-1/2 Agrest,E-Milov,V/Antalya 2004/CBM 101 (38)}) 13... Bxf3 (13... Nxf3+
14. gxf3 Bh3 15. e4 Nd7 $1 16. Kh1 Bxf1 17. Bxf1 Nxc5 18. e5 Qh4 19. Be3 b6 20.
f4 $13 {1-0 Donner,J-Pietzsch,W/Havana 1965/MCD (28)}) 14. gxf3 Qxd5 15. Be2
Qxc5 16. Bb2 Rad8 17. Bd4 Qc8 18. Qb1 Rfe8 19. f4 Rxd4 20. exd4 Nc6 21. Bf3
Nxd4 22. Qxb7 Qf5 23. Rae1 Rf8 24. Bg2 Qxf4 25. Qe7 $16 {1-0 Shchekachev,
A-Dizdar,G/Paris 1996/EXT 97 (36)}) 9... Bxc3 10. bxc3 e5 ({More precise is to
win back the pawn by} 10... dxc4 11. Bxc4 Qa5 12. Qc2 Qxc5 13. Bd3 b6 14. a4
Rd8 $132 {0-1 Ban Aly,A-Ahmed,E/Sanaa 2002/CBM 090 ext (33)}) 11. cxd5 ({
Interesting is} 11. Nd2 $5 Bg4 12. Qa4 d4 {1/2-1/2 Rivas Pastor,M-Nogueiras,J/
Havana 1983/MCD (34)} (12... dxc4 $5 13. Bxc4 e4) 13. cxd4 exd4 14. Ne4 $5 dxe3
15. Nxf6+ Qxf6 (15... gxf6 $6 16. Qc2 Nd4 17. Qb2) 16. Bxe3 $14) 11... Qxd5 12.
c4 Qxc5 13. Qc2 Rd8 $5 ({Black can also play} 13... h6 14. Bb2 Be6 15. Rac1
Rad8 16. Bf5 Rfe8 17. h3 {1-0 Bykov,V-Cherepkov,A/Leningrad 1957/MCD (73)} Bxf5
18. Qxf5 Rd6 $132) 14. Be2 ({Not} 14. Bb2 $2 Rxd3 15. Qxd3 e4 $17) 14... Bg4
15. h3 Bh5 16. Bb2 Rac8 {Black has a very comfortable position in view of
better pawn structure.} ({Less good is} 16... e4 17. Nd4 Bxe2 18. Nxe2 Ne5 19.
Ng3 {because allows White to exchange his weakness on c4.}) 17. Rfd1 Re8 $5 (
17... e4 $143 18. Bxf6 exf3 (18... Rxd1+ 19. Qxd1 $1 exf3 $140 $6 (19... gxf6
20. Nd2 Bg6) 20. Bxf3 Bxf3 21. Qxf3 Qxc4 (21... gxf6 $4 22. Qg4+) 22. Qg3 g6
23. Qg5 Qe6 24. Rd1 $14) 19. Bxd8 fxe2 20. Rd5 Rxd8 21. Rxc5 Rd1+ 22. Rxd1
exd1=Q+ 23. Qxd1 Bxd1 24. Rd5 Ba4 $11) 18. Rac1 Rc7 19. Ne1 ({It was probably
better to play} 19. Nh4 Bxe2 20. Qxe2 Na5 21. Nf3 Rcc8 (21... b6 22. Bc3 Nc6
23. Qb2) 22. Qc2 $5 {with roughly equal chances} {(} Nxc4 $140 23. Bxe5 Rxe5
24. Qxc4 Qxc4 25. Rxc4 {).}) 19... Bg6 20. Qb3 Qe7 21. a4 {A disputable
decision because here the pawn can be vulnerable.} Ne4 22. Nf3 $6 (22. Nd3 $142
{preventing Nc5.}) 22... Nc5 23. Qa3 b6 24. Nd2 $2 {The planned manoeuvre
Nb1-c3 is mistaken in this situation.} ({Instead White should have tried to
exchange his a-pawn by} 24. Bc3 Bh5 25. Rd5 f6 26. a5) 24... Rd8 25. Nb1 Rcd7
26. Rxd7 Rxd7 27. Bc3 ({A sad necessity since after} 27. Nc3 $2 Rd2 28. Rd1
Rxd1+ 29. Nxd1 ({or} 29. Bxd1 Qh4) 29... Qd6 {(/\ Qd2)} 30. Bc1 (30. Bc3 Bd3)
30... Na5 31. Qa2 Bd3 {White is unable to defend c4.}) 27... Bd3 28. Bxd3 Rxd3
29. Qa2 Qd8 30. Nd2 h6 31. Qc2 Qd7 32. Nf3 Qe6 33. Nd2 Rd8 $1 {Prepares the
queen penetration on d3.} 34. Rb1 Qd6 35. Nf3 f6 36. Ne1 Qe6 37. Bb4 ({Avoiding
} 37. Qa2 $2 Ne4 38. Qb3 Nd6) 37... Nxb4 38. Rxb4 Qd7 {Now White cannot
prevent Qd1.} 39. Kf1 Qd1 40. a5 Qxc2 41. Nxc2 bxa5 42. Rb5 Ne4 43. Kg1 $2 (43.
Rxa5 Rd2 (43... Rd1+ 44. Ne1) 44. Nb4 Rxf2+ 45. Kg1 Rb2 46. Nd5 Rb1+ 47. Kh2
Nd2 48. g4 {would be a tougher nut to crack.}) 43... Rd1+ 44. Kh2 h5 45. h4 ({
Also loses} 45. f3 Nd2 46. Rd5 Nf1+ 47. Kg1 Nxe3+ 48. Rxd1 Nxd1 $19) 45... Rc1
46. Na3 Nxf2 47. Rxa5 Ng4+ 48. Kh3 Nxe3 $19 49. Rxa7 Nxc4 50. Nxc4 Rxc4 51. Ra2
Kf7 52. g3 Ke6 53. Kg2 Kf5 54. Ra7 Rc2+ 55. Kf3 g6 56. Ra5 Rc3+ 57. Kg2 Rd3 58.
Kh3 Rd6 59. Rb5 Ke4 60. Rb4+ Ke3 61. Rb3+ Rd3 62. Rb6 f5 63. Rxg6 Kf2 64. Rg5
Rf3 65. Rxh5 Kg1 {And the threat of Rf2 decides.} 0-1

[Event "RUS-chT 11th"]
[Site "Sochi"]
[Date "2004.04.22"]
[Round "3.2"]
[White "Aleksandrov, Aleksej"]
[Black "Maletin, Pavel"]
[Result "1-0"]
[ECO "E56"]
[WhiteElo "2668"]
[BlackElo "2423"]
[Annotator "Kortschnoj,V"]
[PlyCount "77"]
[EventDate "2004.04.20"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]
[WhiteTeam "Ekaterinburg Max Ven"]
[BlackTeam "Tomsk Siberian Athens-Neftekhim"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "RUS"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 d5 7. O-O O-O 8. cxd5
exd5 9. dxc5 Bxc5 10. b3 {Time ago I used to play this position, but preferred
to have my bishop on e2, as usually in a set-up against the isolated pawn. The
set-up with the bishop on d3 has some, perhaps useful peculiarities.} a6 11.
Bb2 Re8 {In regard of the struggle for the central square d4 the immediate 11..
.Bg4 looks more exact.} 12. Rc1 Ba7 13. Ne2 Bg4 14. Bxa6 $5 {Desperate attempt
to seize the initiative.After a natural move 14.Bb1 Ne4! white hardly had any
advantage.} Bxf3 15. gxf3 Bxe3 $6 ({Meanwhile, a modest} 15... Bb8 {would
repel all white's threats.} {It is true, however, after a solid} 16. Bb5 (16.
Bxf6 {would have forced} gxf6 {but the position after} (16... Qc7 $145 $5) 17.
Bb5 Rxa2 18. Ba4 Kh8 $1 19. Nc3 Qd7 {was pleasant for black.}) (16. Bxb7 {
would not work, due to} Qc7) 16... Rxa2 17. Rc2 {white still had a slight edge.
}) 16. Bxb7 Bxc1 17. Nxc1 Nh5 18. Bxc6 ({After} 18. Bxa8 Nf4 19. Kh1 Qxa8 {
black had compensation for the pawn, but after 20.Qd2! not too much.} (19...
Qh4 20. Nd3 $1 {with advantage for white. But Alexandrov, as usually, is
playing for the maximum.} ({Not} 20. Bxc6 $2 Qh3 21. Rg1 Re1 {winning.})))
18... Nf4 19. Kh1 Ra6 ({Remarkable:} 19... Re6 {looks more consequent -} {But}
20. Rg1 $1 {wins:} (20. Qd4 Qg5 21. Rg1 (21. Qxg7+ Qxg7 22. Bxg7 Rxc6 $17)
21... Qxg1+ 22. Kxg1 Re1#) (20. Bxa8 {fails, due to} Rh6 {and black wins.})
20... Rxc6 (20... Qh4 21. Qd4 $18) 21. Qd4 $1 Ne6 (21... f6 22. Qxf4) 22. Rxg7+
Kf8 23. Rg8+ Ke7 24. Qh4+ $18) 20. Qd2 $3 {The only winning move. As we
already know, taking on e8 was bad because of 20...Rh6; 20.Qd4 would be
refuted by Qg5 21.Rg1 Re1,21.Rg1 Rc6 22.Qd4- white would have had some
advantage but not decisive one.} Rxc6 ({Or} 20... Qh4 21. Rg1 Rxc6 22. Rxg7+
Kf8 23. Rg4 Qh3 24. Qb4+ Re7 25. Qb8+ Re8 26. Ba3+) 21. Qxf4 Rg6 22. Nd3 d4 23.
Ne5 $18 Rf6 24. Qxd4 Qa8 25. Qa4 Qxa4 26. bxa4 Rf5 27. Rd1 f6 28. Nc6 Rc5 29.
Rd6 Re1+ 30. Kg2 Rg5+ 31. Kh3 Reg1 32. Rd5 $1 Rxd5 33. Ne7+ Kf7 34. Nxd5 Ke6
35. Nf4+ Kd6 36. a5 Kc6 37. Bd4 Kb5 38. Bb6 Ka6 39. Ne6 1-0

[Event "RUS-ch 69th"]
[Site "Novosibirsk"]
[Date "2016.10.16"]
[Round "1"]
[White "Riazantsev, Alexander"]
[Black "Bocharov, Dmitry"]
[Result "1-0"]
[ECO "E56"]
[WhiteElo "2651"]
[BlackElo "2611"]
[Annotator "Krasenkow,M"]
[PlyCount "55"]
[EventDate "2016.10.16"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "18"]
[SourceTitle "CBM 175"]
[Source "ChessBase"]
[SourceDate "2016.11.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.11.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. cxd5 exd5 8.
dxc5 Bxc5 9. O-O Nc6 10. h3 {This logical continuation, preventing ...Bc8-g4,
is the most common move in this position.} a6 (10... d4 {is premature in view
of} 11. Na4 {; after the text move ...d5-d4 is already possible since Black
can reply to Nc3-a4 with ...Bc5-a7.}) ({However, it is too slow, and} 10... Qe7
{is probably better.}) 11. b3 {[%mdl 32]} ({White can prevent Black's break in
the centre by means of} 11. Ne2 {; the idea of the text move is different:
White quickly develops his pieces to obtain a development advantage in the
subsequent open position.}) 11... d4 ({If Black refrains from this move, White
keeps a small edge due to his control of the d4-square, e.g.} 11... Re8 12. Bb2
Ba7 13. Ne2 Ne4 14. Nf4 Be6 15. Rc1 $14 Qa5 $6 16. a3 Rad8 17. b4 Qb6 18. Nd4
$16 {1-0 (69) Gajewski,G (2644)-Piorun,K (2529) Warsaw 2012}) 12. exd4 (12. Na4
$143 Ba7 13. exd4 Nxd4 (13... b5 $5 14. Nc5 Nxd4 15. Ne4 Bf5 16. Bg5 Re8 17.
Nxf6+ gxf6 18. Bxf5 fxg5 19. Nxd4 Qxd4 20. Qh5 Qh4 21. Bxh7+ Kg7 22. Qxh4 gxh4
23. Bd3 Rad8 $11 {1/2 (33) Lenderman,A (2614)-Neelotpal,D (2437) Caleta 2015})
14. Bb2 Ne6 {[%cal Yb7b5]} (14... Nc6 $143 15. Rc1 Re8 16. Qd2 h6 {1-0 (44)
Paravyan,D (2528)-Bocharov,D (2611) Sochi RUS 2016} 17. Nc5 $14) 15. Qc2 (15.
Rc1 b5 16. Nc3 Bb7 $15 {0-1 (63) Kashlinskaya,A (2423)-Kosteniuk,A (2527)
Khanty-Mansiysk 2014}) 15... Nf4 16. Rad1 (16. Bc4 $2 b5 17. Rad1 Qe7 18. Rfe1
Qb7 19. Bxf6 gxf6 20. Qe4 {1-0 (32) Sebenik,M (2516)-Banusz,T (2595) Biel 2014}
Qxe4 21. Rxe4 Nxh3+ 22. gxh3 bxc4 23. Rxc4 Bxh3 $15) 16... Nxd3 17. Rxd3 Bf5
18. Rxd8 Bxc2 19. Rxa8 Rxa8 20. Bd4 Bxd4 21. Nxd4 Be4 22. f3 Rd8 23. Rd1 Bc6
$11 {1/2 (42) Smirnov,A (2445)-Levin,E (2510) Sochi RUS 2016}) 12... Nxd4 13.
Bb2 Ne6 {This retreat is appropriate with White's knight on a4 but now it is
not enough for equality. However, Black has hardly got anything better:} (13...
Ba7 14. Nxd4 (14. Ne4 $5) 14... Qxd4 15. Qf3 Bd7 16. Rad1 Bc6 17. Qg3 Bb8 18.
Qxb8 Raxb8 19. Bxh7+ Kxh7 20. Rxd4 $16 {0-1 (63) Olszewski,M (2532)-Ghaem
Maghami,E (2557) Germany 2013}) (13... Bf5 14. Nxd4 Bxd3 15. Qxd3 Qxd4 (15...
Bxd4 16. Rad1 Be5 17. Qf5 Qb8 18. f4 $14) 16. Qf3 Qb4 17. Na4 Be7 18. Rfe1 Rfe8
19. Bc3 Qb5 20. Re5 Qc6 21. Qxc6 bxc6 22. Rc1 $14 {1/2 (63) Cvitan,O (2509)
-Dudek,R (2241) Baden 2015}) 14. Ne4 $14 Be7 $6 {It was relatively better to
exchange queens:} (14... Nxe4 $142 15. Bxe4 Qxd1 16. Rfxd1 a5 $14 {[%cal Ya5a4]
}) 15. Qc2 {[%cal Re4f6]} Nd5 (15... g6 $2 16. Qc3) (15... h6 16. Rad1 $16) 16.
Nc3 $1 Nf6 $8 17. Rad1 Qa5 18. Rfe1 $16 {[%cal Ge1e8,Gd1d8] It is very
difficult for Black to develop his pieces.} Rd8 (18... h6 19. Ne4 Nd5 20. Bc4
$16 {[%cal Ye4g3,Yg3f5]}) 19. Re5 b5 (19... Qc7 20. Nd5 $1 Rxd5 (20... Nxd5 21.
Bxh7+ Kh8 22. Rexd5) 21. Qxc7 Nxc7 22. Rxe7 $16) 20. Nd5 Nxd5 21. Bxh7+ Kf8 22.
Rexd5 (22. Be4 $5) (22. Rdxd5 $5) 22... Rxd5 $2 (22... Bb7 {is more stubborn
but after} 23. Be4 $1 Rac8 (23... Rdc8 $2 24. Rh5) (23... Bxd5 24. Bxd5 {
[%cal Rd5a8,Rc2h7]}) 24. Rxd8+ ({or} 24. Rh5 Ke8 25. Rxd8+ Qxd8 26. Qe2 $16)
24... Bxd8 25. Qe2 Bxe4 26. Qxe4 Qxa2 27. Rd2 {[%cal Re4h7]} Kg8 (27... Qxb3
28. Qh7 {with a decisive attack}) 28. Bxg7 Rc1+ 29. Kh2 $16 {White keeps an
extra pawn.}) 23. Rxd5 Bb7 24. Rf5 $1 $18 {[%mdl 128] Black's king is helpless.
} Rc8 25. Rxf7+ Kxf7 26. Qg6+ Kf8 27. Qxe6 Bf6 28. Bg6 1-0

[Event "Kazan FIDE GP (Women) 4th"]
[Site "Kazan"]
[Date "2012.06.22"]
[Round "11"]
[White "Lagno, Kateryna"]
[Black "Kosintseva, Tatiana"]
[Result "0-1"]
[ECO "E56"]
[WhiteElo "2546"]
[BlackElo "2532"]
[Annotator "Mikhalchishin,A"]
[PlyCount "76"]
[EventDate "2012.06.09"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[EventCategory "11"]
[SourceTitle "CBM 149"]
[Source "ChessBase"]
[SourceDate "2012.07.17"]
[SourceVersion "1"]
[SourceVersionDate "2012.07.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. cxd5
$5 {An interesting try to get an isolani structure.} (8. a3 {has been tried
thousands of times...}) 8... exd5 9. dxc5 Bxc5 ({The usual Nimzo-Indian way is
a bit dangerous:} 9... Bxc3 10. bxc3 Nd7 11. Qc2 h6 12. c4 Nxc5 13. cxd5 Qxd5
14. Bh7+ Kh8 15. Ba3 b6 16. Be4) 10. h3 a6 11. b3 Be6 {Of course, different
setups are possible here:} (11... Re8 12. Bb2 Ne4 (12... Ba7 13. Rc1 Qd6 14.
Ne2 Bd7 15. Bb1 Rad8 16. Nf4 Bc8 17. Bxf6 Qxf6 18. Nxd5 Qh6 19. e4 Bb8 20. Qd2
Qxd2 21. Nxd2 Be6 22. Nc4 Bxd5 23. exd5 Nd4 24. Bd3 Rxd5 {1/2 Lodhi,M (2415)
-Murugan,K (2395)/Teheran 1997}) (12... h6 13. Rc1 Ba7 14. Bb1 Be6 15. Ne2 Qe7
16. Ned4 Nxd4 17. Nxd4 Ne4 18. Nxe6 Qxe6 19. Qd3 Bb8 20. Qd4 Be5 21. Qxe5 Qxe5
22. Bxe5 Rxe5 23. Rfd1 {Chang,H (2200)-Wheeler,R (2226)/Istanbul 2000; with a
better endgame.}) 13. Ne2 (13. Rc1 {is preferable.}) 13... Bd6 14. Rc1 Bf5 15.
Bb1 Qd7 16. Nf4 Bxf4 17. exf4 Rad8 18. Nh4 (18. Ne5 {was better:} Nxe5 19. fxe5
) 18... Nd6 19. Nxf5 Nxf5 20. Qg4 ({In such situations only} 20. Rc5 $1 {
promises an advantage}) 20... Nce7 21. Rfe1 d4 22. Rcd1 g6 23. Re5 f6 24. Re4
Nc6 25. Qf3 Nh4 26. Qg3 Nf5 27. Qf3 Nh4 28. Qe2 Nf5 29. Qf3 {1/2 Koneru,H 
(2589)-Yifan,H (2623)/Kazan, RUS 2012}) (11... Qe7 12. Bb2 (12. a3 {is not bad:
} Ne5 13. Bb2 Bd6 14. Re1 Re8 15. Bf1 Bd7 16. Nd4 Rad8 17. Qc2 Bb8 18. Rad1 Qd6
19. f4 $2 (19. g3 {promised something of an advantage:} g6 20. Bg2) 19... Nc6
20. Nf5 Bxf5 21. Qxf5 Ba7 {Boutteville,C-Letelier Martner,R/Moscow 1956. The
pawn on e3 is a real weakness.}) 12... Be6 (12... Rd8 13. Ne2 Ne4 14. Rc1 Bd6
15. Bb1 Be6 16. Ned4 Bd7 17. Ne2 Be6 18. Nf4 Bxf4 19. exf4 Qd6 20. Be5 (20. Ne5
{was much stronger:} Rac8 21. Nxc6 Rxc6 22. Qd4 Nf6 23. Rcd1) 20... Qb4 21. Re1
Rac8 22. Bb2 f6 23. Nd4 Nxd4 24. Qxd4 Qxd4 25. Bxd4 {Nikolic,P (2635)
-Kotronias,V (2560)/Manila 1992; with a better endgame.}) 13. Ne2 Ne4 14. Ned4
f5 15. Rc1 Bd7 16. Nxc6 Bxc6 17. Ne5 Rac8 18. Qe2 Kh8 19. Bd4 Bd6 20. Nxc6 Rxc6
21. Rfd1 Rcc8 22. Rxc8 Rxc8 23. Qh5 {Roiz,M (2652)-Nikolov,M (2550)/Plovdiv
BUL 2012; White retains an unpleasant attack.}) (11... d4 {would be premature:}
12. exd4 Bxd4 (12... Nxd4 13. Bb2 Ne6 14. Ne4 Nxe4 15. Bxe4)) 12. Bb2 Ba7 ({
It is not necessary to create weaknesses in one's own camp:} 12... Rc8 13. Rc1
Qd6 14. Na4 Ba7 15. Bxf6 gxf6 16. Bb1) 13. Ne2 ({Even now it was possible the
direct assault} 13. Ng5 d4 14. Nxe6 fxe6 15. exd4 Bxd4 16. Qe2 Qe7 17. Rad1
Rad8 18. Bc4) 13... Rc8 ({White would obtain a very pleasant advantage after} 
13... Ne4 14. Ned4 Nxd4 15. Bxd4 Bxd4 16. Nxd4 Qd6 17. Bxe4 dxe4 18. Qh5 Rac8
19. Rfd1) 14. Ng5 $5 ({The usual continuation would be} 14. Nf4) 14... g6 15.
Nf4 Qe7 ({Maybe better would be the tricky way} 15... Bb8 16. Rc1 ({It was
even possible to fall into the trap} 16. Nfxe6 fxe6 17. Nxe6 Qd6 18. Nf4 g5 19.
Bxf6 Rxf6 20. Qg4) 16... Bxf4 17. exf4 d4) 16. h4 $5 {A very direct option,
but positional developing moves were preferable:} (16. Qf3) (16. Rc1) 16... Bb8
17. h5 Bd7 ({Of course, White's main line was the beautiful, but typical queen
sacrifice} 17... Nxh5 18. Qxh5 $1 gxh5 19. Bxh7#) 18. hxg6 ({It was very
interesting to sacrifice a knight:} 18. Nxh7 Kxh7 (18... Nxh7 19. hxg6 fxg6 20.
Nxg6 Qd6 21. f4 Ba7 22. Qh5 Bxe3+ 23. Kh1 Bd4 24. Bxd4 Nxd4 25. Nxf8 Nxf8 26.
Rae1 {with a terrific attack}) 19. hxg6+ fxg6 20. Nxg6 Qd6 21. f4 Kg7 22. Qh5 {
with an attack.}) 18... hxg6 19. Nxd5 $5 Nxd5 20. Qh5 {Dreaming about the same
mate.} f6 21. Bxg6 Ne5 ({After} 21... Be5 {there was nothing better for White
than the perpetual after the correct} 22. Be4 Ndb4 23. Bh7+ Kg7 24. Bb1 Kg8)
22. Ba3 $1 {An unexpected strike from the other side!} Bg4 23. Qh1 $4 ({
What a pity. Katia missed the intermediate} 23. Bh7+ Kg7 (23... Kh8 24. Qh1 $1
$18) 24. Bxe7 Bxh5 25. Bxf8+ Kxf8 26. Be4 fxg5 27. Bxd5 Nc6 28. Rac1 {with a
much better endgame.}) 23... Qd7 24. Be4 Nc3 25. Qh6 fxg5 26. Bxf8 Rxf8 27. f3
Qg7 {Now Black wins easily.} 28. Qxg7+ Kxg7 29. Bxb7 Nd3 30. Rfd1 Ne2+ 31. Kf1
Ng3+ 32. Kg1 Ne2+ 33. Kf1 Ng3+ 34. Kg1 Rh8 35. Rxd3 Rh1+ 36. Kf2 Rxa1 37. e4
Rxa2+ 38. Ke1 Be6 0-1

[Event "EU-ch (Women) 20th"]
[Site "Antalya"]
[Date "2019.04.14"]
[Round "4"]
[White "Danielian, Elina"]
[Black "Cramling, Pia"]
[Result "1-0"]
[ECO "E56"]
[WhiteElo "2413"]
[BlackElo "2460"]
[Annotator "Mikhalchishin,A"]
[PlyCount "47"]
[EventDate "2019.04.11"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "TUR"]
[SourceTitle "CBM 190"]
[Source "ChessBase"]
[SourceDate "2019.06.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.30"]
[SourceQuality "1"]
[WhiteClock "1:30:00"]
[BlackClock "0:01:00"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 dxc4 7. Bxc4 c5 8. O-O
Nc6 9. a3 Ba5 ({A classical tabiya arises after} 9... Bxc3 10. bxc3 Qc7) 10.
Bd3 ({Not the best solution is} 10. dxc5 Bxc3 11. bxc3 Qa5) ({but} 10. Qd3 {
seems very logical.}) 10... cxd4 11. exd4 h6 ({More logical is to avoid making
weaknesses on the kingside:} 11... Bb6 12. Be3 Nd5 13. Nxd5 (13. Qc2 g6) 13...
exd5 14. h3 Qd6 15. Re1 Bc7 16. Rc1 Be6 17. Bb1 Rac8 18. Rc3 Qd7 19. Bd3 {
1/2 (19) Gligoric,S-Polugaevsky,L Palma de Mallorca 1970}) 12. Bc2 Bb6 13. Be3
Ne7 ({More precise} 13... Qe7 14. Qe2 (14. Qd3 Rd8 15. Rad1 e5 16. d5 e4 17.
Nxe4 Nxd5) 14... Re8 15. Rfe1 Bc7 16. Qf1 $6 (16. Rad1 $142 b6 17. d5 Nxd5 18.
Nxd5 exd5 19. Qd3) 16... Qd8 17. Rad1 Ne7 18. Qd3 Ned5 19. Bc1 Nxc3 20. bxc3 b6
21. Ne5 Bxe5 22. Rxe5 Bb7 23. Qg3 Kh8 {1/2 (23) Donner,J-Damjanovic,M San Juan
1969}) (13... Ng4 14. Qd3 g6 15. Bb3 Kh7 16. Rad1 e5 17. d5 Nxe3 18. fxe3 e4
19. Nxe4 Bf5 20. Qc3 Bxe4 21. dxc6 Qe7 22. Rd7 Qc5 23. Rxf7+ {1-0 (23)
Taimanov,M-Parma,B Vinkovci 1970}) 14. Ne5 ({Possible here was} 14. Qd3 Nf5 15.
Rad1 Bc7 16. Ne5 Bxe5 17. dxe5 Qxd3 18. Rxd3 Nd7 19. f4 b6 20. Bf2 Nc5 21. Rd2
Ba6 22. Bxc5 bxc5 23. Bxf5 exf5 24. Rc1 Rfd8 25. Nd5 {with the much better
endgame, Repka,C (2466)-Lupulescu,C (2611) Skopje MKD 2019}) 14... Bd7 15. Qd2
Bc6 16. Rad1 {[#]} Nh7 $2 ({Black also has to suffer after} 16... Re8 17. Bf4 (
17. Bxh6 gxh6 18. Qxh6 Nf5 19. Qg5+ Kf8 20. g4 Nxd4 21. Qf4) 17... Rc8 18. Rfe1
) 17. Bxh6 $1 Nd5 (17... gxh6 18. d5 $3 Bxd5 19. Nxd5 Nxd5 20. Qxh6 Ng5 21. Nd7
$1) 18. Bf4 Qe7 19. Qd3 g6 20. Bh6 Rfd8 21. Rfe1 Be8 22. Qh3 Nxc3 23. bxc3 Qxa3
24. Bxg6 1-0

[Event "Match Reshevsky-Najdorf +6-5=7"]
[Site "Buenos Aires"]
[Date "1953.06.??"]
[Round "6"]
[White "Najdorf, Miguel"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "E56"]
[Annotator "Morgado,J"]
[PlyCount "52"]
[EventDate "1953.06.01"]
[EventType "match"]
[EventRounds "18"]
[EventCountry "ARG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 O-O 6. Nf3 d5 7. O-O Nc6 8. a3
dxc4 9. Bxc4 Ba5 10. Bd3 Bb6 11. dxc5 Bxc5 12. b4 Be7 13. Bb2 a6 (13... Bd7 14.
Ne4 Nxe4 15. Bxe4 $14 {Ogaard,L (2435)-Kraidman,Y (2470)/Nice 1974}) 14. Rc1
Bd7 15. Bb1 Rc8 16. Qd3 Be8 17. Qc2 Na7 18. Rfd1 Qb6 19. Ng5 g6 20. Qe2 a5 21.
bxa5 Qxa5 22. h4 Bc6 (22... Bxa3 23. Nce4 (23. Nd5 Bxb2 24. Ne7+ Kg7 25. Qxb2
Rxc1 26. Rxc1 Qb5 27. Qa1 Qa6 28. Qe5 $44) 23... Nxe4 24. Rxc8 Nxc8 25. Nxe4
Be7 26. Nf6+ Bxf6 27. Bxf6 $44) 23. a4 Rfd8 24. Bd3 h6 25. Nf3 Qh5 26. e4 Ng4
1/2-1/2

[Event "Match Reshevsky-Najdorf +6-5=7"]
[Site "Buenos Aires"]
[Date "1953.06.??"]
[Round "4"]
[White "Najdorf, Miguel"]
[Black "Reshevsky, Samuel Herman"]
[Result "1/2-1/2"]
[ECO "E56"]
[Annotator "Morgado,J"]
[PlyCount "92"]
[EventDate "1953.06.01"]
[EventType "match"]
[EventRounds "18"]
[EventCountry "ARG"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O Nc6 8. a3
dxc4 9. Bxc4 Ba5 10. Qd3 a6 11. Rd1 b5 12. Ba2 Bb7 13. dxc5 (13. Qc2 cxd4 14.
exd4 Ne7 15. Ne5 Rc8 16. Qd3 Ned5 $13 {Nikolac,J-Karaklajic,N/Sarajevo 1951}) (
13. Bb1 cxd4 14. exd4 Ne7 15. Ng5 Ng6 16. Qh3 Bxc3 17. bxc3 Qd5 18. Re1 Rac8
19. Bd2 Qb3 $11 {Najdorf,M-Reshevsky,S/Mex/NY/Salvador 1952}) 13... Bxc3 (13...
Qxd3 14. Rxd3 b4 15. axb4 (15. Na4 $142 $14) 15... Bxb4 16. Bd2 Bxc5 17. Na4
Be7 $11 {Wexler,B-Gligoric,S/Mar del Plata 1955}) 14. Qc2 Qe7 {Reshevsky
utilizo mucho tiempo para su proxima respuesta.} 15. Qxc3 Rfd8 16. Bd2 Ne4 17.
Qc2 Nxc5 18. Be1 Rac8 {Aqui Reshevsky propuso tablas, que Najdorf rechazo.} 19.
Rac1 Na4 20. Bb1 g6 21. Qe2 Rxd1 22. Rxd1 Rd8 23. Rc1 Nb6 24. h4 h5 $6 (24...
Qd6 25. e4 Nc4 26. Bc3 N6e5 27. Bb4 $14) 25. Ng5 Nd5 26. f4 Nf6 27. b4 Nd5 28.
Qf2 a5 29. Qg3 $6 (29. e4 Nf6 30. Qb6 axb4 31. axb4 Ng4 32. Nf3 $40) 29... axb4
30. axb4 Nf6 (30... Ndxb4 31. Nxf7 Qxf7 32. Bxg6 Qg7 33. f5 Nd5 (33... exf5 $2
34. Bc3 $16) 34. fxe6 b4 35. e4 Nde7 36. Bf7+ Kh7 37. Rc5 Qxg3 38. Rxh5+ Kg7
39. Bxg3 $44) 31. Bc3 Ng4 32. Qe1 Rc8 33. Rd1 (33. Be4 e5 34. Bf3 Rd8 $13) (33.
Bc2 Qc7 34. Bd1 Nxb4 35. Bb2 Qd8 36. Rxc8 Bxc8 37. Bxg4 Nd3 $8 38. Qc3 Nxb2 39.
Bxe6 (39. Bxh5 f6 $132) 39... Bxe6 40. Nxe6 fxe6 41. Qxb2 Qxh4 42. Qxb5 Qe1+
$11) 33... Rd8 34. Rc1 (34. Bc2 $14) 34... Rc8 35. Bc2 (35. Be4 {sugerida por
Celaya en Noticias Grбficas, indicando que las blancas mantienen la ventaja.
Sin embargo, los anбlisis muestran que las negras no estбn peor. Por ejemplo:}
Nd8 ({O bien} 35... f6 36. Nf3 Kf7 $13) ({Si} 35... e5 $6 36. Rd1 exf4 37. exf4
Nb8 38. f5 $36) 36. Bd3 e5 37. fxe5 Nxe5 38. Bxb5 Ng4 $13 (38... Bxg2 $5))
35... Nb8 36. Bd3 Na6 37. Bc2 (37. Bf1 e5 38. fxe5 Nxe5 39. Bd4 Rxc1 40. Qxc1
Ng4 41. Bxb5 Qd6 $132) 37... Qd6 38. Bd1 Qd3 39. Bd2 (39. Bxg4 hxg4 40. Kh2 $13
) 39... Rd8 (39... Rxc1 40. Bxc1 Nxb4 41. Bxg4 hxg4 42. Qxb4 Qd1+ 43. Kh2 Qxc1
44. Qd6 Qc6 45. Qd8+ Kg7 46. e4 $11) 40. Bxg4 hxg4 {Suspendida} (40... Qxd2 41.
Qxd2 Rxd2 42. Bf3 Bxf3 43. gxf3 Rd7 44. Ne4 Kf8 45. Kf2 Nxb4 46. Rb1 Nd5 47.
Rxb5 Ra7 $15) 41. Bc3 Rc8 42. Kh2 Rc4 43. Ba1 Nc7 (43... Nxb4 $2 44. Rd1 $18)
44. Qd1 Qxd1 45. Rxd1 Bc6 46. Rd8+ Ne8 1/2-1/2

[Event "Bundesliga 0304"]
[Site "Germany"]
[Date "2003.11.23"]
[Round "4.4"]
[White "Sadler, Matthew D"]
[Black "Pelletier, Yannick"]
[Result "0-1"]
[ECO "E56"]
[WhiteElo "2626"]
[BlackElo "2604"]
[Annotator "Pelletier,Y"]
[PlyCount "36"]
[EventDate "2003.11.01"]
[EventType "team-tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]
[WhiteTeam "Solingen"]
[BlackTeam "Werder Bremen"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Ba5 {Diese Variante war vor einem halben Jahrhundert populдrer!} 9. cxd5 exd5
10. dxc5 Bxc3 11. bxc3 Bg4 12. Rb1 (12. c4 {gilt zurecht als die kritische
Fortsetzung.}) 12... Qc8 ({Genauer als} 12... Qd7 13. Qa4 $5) 13. Qc2 (13. Be2
Ne4 14. Qb3 Rd8) (13. c4 Rd8 $5 $36) 13... Bxf3 14. gxf3 (14. Bf5 $4 Be4) 14...
Qh3 15. Be2 Ne5 16. Qd1 Rfd8 ({Fritz' Vorschlag ist gar nicht so dumm:} 16...
Rfc8 17. Kh1 (17. Rxb7 $2 Rc6 $19) 17... Rab8 18. Rg1 Rxc5 $13 {Aber der
Textzug beinhaltet eine versteckte Drohung.}) 17. Rxb7 $2 ({Nach diesem Fehler
ist der Untergang fьr Weiss schon unvermeidlich! Kaum besser ist} 17. Qd4 $2
Ng6 (17... Nxf3+ 18. Bxf3 Qxf3 19. Rxb7 Ne4 $36) 18. Kh1 Nh4 19. Rg1 Nxf3 20.
Bxf3 Qxf3+ 21. Rg2 Re8 22. Rxb7 Re4 23. Qd3 Rg4 24. Qf1 Ne4 $17) ({Korrekt
waren aber 17.Bd2 und} 17. Kh1 {wonach Schwarz nach Wunsch Dauerschach
erzwingen kann, man sehe:} Ne4 (17... Rd7 $13) 18. fxe4 dxe4 19. Bd2 Nc4 (19...
Nf3 $2 20. Bxf3 Rxd2 21. Bg2) (19... Rd5 $2 20. Rg1 Qd7 21. Rb2 Rd8 22. Qb1 $1)
20. Bxc4 Rxd2 $11 {und}) (17. Bd2 Rac8 $5 (17... Ne4 18. fxe4 dxe4 19. Kh1 Nc4
20. Bxc4 Rxd2 $11) 18. Kh1 (18. Rxb7 Rc6 $19) 18... Rd7 $13) 17... Ne4 $1 18.
Qd4 $2 ({Matthew Sadler erwischte da kein guter Tag, denn der Textzug verliert
auf der Stelle. Aber auch im Falle von} 18. fxe4 dxe4 19. Qb3 (19. Rxa7 Nf3+)
19... Kh8 $1 (19... Rf8 $2 20. Qd5 $18) 20. Rxf7 (20. f4 exf3 21. Rxf3 (21.
Bxf3 Nxf3+ 22. Kf2 Nd2 $19) 21... Nxf3+ 22. Kf2 Ne5 $19) 20... Nf3+ 21. Bxf3
exf3 22. Rxf3 Qxf3 {sieht es ganz schlecht aus.}) 18... Ng6 $1 {[%cal Gg6h4]}
0-1

[Event "Reykjavik zt"]
[Site "Reykjavik"]
[Date "1995.??.??"]
[Round "8"]
[White "Djurhuus, Rune"]
[Black "Petursson, Margeir"]
[Result "1/2-1/2"]
[ECO "E56"]
[WhiteElo "2495"]
[BlackElo "2535"]
[Annotator "Petursson,M"]
[PlyCount "167"]
[EventDate "1995.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "CBM 047"]
[Source "ChessBase"]
[SourceDate "1995.08.01"]
[SourceVersion "1"]
[SourceVersionDate "1995.08.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Ba5 9. Re1 {N} (9. cxd5 exd5 10. dxc5) 9... a6 (9... dxc4 $142 10. Bxc4 a6) 10.
cxd5 exd5 11. dxc5 $6 Bxc3 12. bxc3 Bg4 13. h3 Bh5 14. Be2 $2 (14. c4 $1) 14...
Ne4 15. Qc2 Bg6 16. Bd3 Qf6 $44 17. a4 Rfc8 18. Ba3 Na5 $1 19. Bxe4 $6 Bxe4 20.
Qd1 Nc4 $1 (20... Qxc3 21. Qd2 $10) 21. Nd4 Re8 22. Ne2 $6 (22. Qg4 $5) 22...
Rac8 23. Qd4 Qg5 24. Ng3 Rc6 $1 $17 25. Kh2 Rg6 26. Rg1 h5 27. Kh1 (27. Nxe4
Rxe4 28. Qd1 Rh4 {/\ Nxe3} 29. Qe2 Ne5 $17) 27... Nxe3 $2 (27... Bc2 $1 28. Bc1
(28. Qf4 Qxf4 29. exf4 h4 30. Nf1 Bxa4 $19) 28... Re4 $1 29. Nxe4 Bxe4 30. f3
Ne5 31. fxe4 Qg3 32. Qd1 Ng4 $19) 28. Bc1 $1 {[]} Qh4 29. Nxe4 Rxe4 30. Bxe3
Rxd4 31. Bxd4 $15 Re6 32. Rab1 Qe7 33. Rb4 Re1 34. Rxe1 Qxe1+ 35. Kh2 Qe7 36.
a5 Qc7+ 37. Kg1 f6 38. Rb6 h4 39. Kh1 Kh7 40. Rd6 Qxa5 $2 41. Rb6 $10 Qa1+ 42.
Kh2 Qa4 43. Rxb7 a5 44. Kh1 Qc6 45. Rb6 Qc8 46. c6 a4 47. Bc5 Qe6 48. Bd4 Qe1+
49. Kh2 Qe4 50. Ra6 a3 51. Ra7 Qe6 52. c7 a2 53. Rxa2 Qd6+ 54. Kg1 Qxc7 55. Ra7
Qc6 56. Re7 Kg8 57. Re3 Kf7 58. Rf3 Qb5 59. Kh1 Qb1+ 60. Kh2 Qb8+ 61. Kg1 Qb1+
62. Kh2 Qe4 63. Re3 Qf4+ 64. Kg1 Kf8 65. Bc5+ Kg8 66. Bd4 Kf7 67. Rf3 Qc1+ 68.
Kh2 Ke6 69. Re3+ Kd7 70. Rf3 Kc6 71. Rf5 Qb1 72. Rf3 Qg6 73. Rf4 Qh7 74. Rg4
Qh8 75. f4 Kb5 76. Bf2 Kc4 77. Bd4 Kd3 78. f5 Ke2 79. Kg1 Qh6 80. Kh2 Kd3 81.
Kg1 Qh8 82. Kh2 Qh6 83. Kg1 Qh8 84. Kh2 1/2-1/2

[Event "Zuerich op-A 40th"]
[Site "Zuerich"]
[Date "2016.12.29"]
[Round "6"]
[White "Prusikin, Michael"]
[Black "Berend, Fred"]
[Result "1-0"]
[ECO "E56"]
[WhiteElo "2535"]
[BlackElo "2344"]
[Annotator "Prusikin,M"]
[PlyCount "69"]
[EventDate "2016.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. cxd5
exd5 9. dxc5 Bxc5 10. h3 a6 11. b3 Qd6 12. Bb2 Rd8 (12... d4 13. exd4 Nxd4 14.
Ne4 $16) 13. Rc1 Ba7 14. Ne2 Bd7 $146 (14... h6 15. Ned4 Nxd4 16. Bxd4 Bxd4 17.
Nxd4 $14 {1-0 (60) Garrido Olivares,R (2155)-Sanchez Gonzalez,S (2300) Madrid
2016}) 15. Ned4 (15. Bb1 $5) 15... Ne4 16. Nxc6 Bxc6 {[#]} 17. Bd4 $1 Bb5 $2 (
17... Bxd4 18. Nxd4 Bd7 19. Qh5 $14) 18. Bxa7 Bxd3 19. Qxd3 Rxa7 20. Rc2 Raa8
21. Rfc1 $16 h6 22. Qd4 $1 {[%cal Gf3e5,Ge5d3,Gd3f4]} Qe6 23. Qb4 Rab8 24. Rc7
Nd6 25. Qf4 g5 26. Qb4 Nb5 27. R7c5 Qe4 28. Qd2 b6 (28... d4 29. Re5 $18) 29.
Rc6 d4 30. Rxh6 Kg7 (30... dxe3 31. Qxe3 Qxe3 32. fxe3 $18) 31. Rhc6 f6 (31...
dxe3 32. Qb2+ Nd4 33. R6c4 $18) 32. Qb2 Rb7 33. a4 Nc3 34. Nxd4 Rxd4 35. Qxc3
1-0

[Event "EtVas Vantaa GM"]
[Site "Myyrmanni"]
[Date "1999.07.27"]
[Round "8"]
[White "Tella, Jussi"]
[Black "Lugovoi, Aleksei"]
[Result "0-1"]
[ECO "E56"]
[WhiteElo "2434"]
[BlackElo "2509"]
[Annotator "Wells,P"]
[PlyCount "86"]
[EventDate "1999.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "FIN"]
[EventCategory "8"]
[SourceTitle "CBM 072"]
[Source "ChessBase"]
[SourceDate "1999.10.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.10.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3
Ba5 {This, together with its sister variation} (8... dxc4 9. Bxc4 Ba5 {have
featured but rarely in 1990s practice.}) 9. cxd5 {This direct try is regarded
as a critical test of black's system. White temporarily wins a pawn, and
acquires the bishop pair, hoping that it will be activated in the course of
black re-establishing material parity. Black, meanwhile, as so often in the
Nimzo puts his trust in light-square counterplay. However, perhaps a suspicion
that the position resulting around move 17-19 is not fully convincing may have
contributed to the popularity of alternatives, eg.} (9. Rb1 {should not be
dangerous - returning to ...dxc4 patterns looks indicated.} Qe7 $6 (9... dxc4
$5 10. Bxc4 Qe7 (10... a6 $5)) 10. cxd5 exd5 11. dxc5 Bxc3 12. bxc3 Qxc5 13. a4
Re8 14. c4 $1 {finding a further role for the b1 rook!} dxc4 15. Rb5 Qe7 16.
Bxc4 Bg4 17. Bb2 Rad8 18. Qb3 Bxf3 19. gxf3 b6 20. Rg5 h6 21. Rg2 $14 {Lipka,J
-Zedek,A/ Bratislava 1991.} Na5 $140 $6 22. Qc3 Nxc4 23. Qxf6 $16) (9. h3 $5
Qe7 10. Qc2 dxc4 11. Bxc4 Bd7 12. d5 exd5 13. Nxd5 Nxd5 14. Bxd5 Bc7 15. e4
Rac8 16. Be3 b6 17. Rad1 h6 18. Rfe1 Qf6 19. Qe2 Ne5 20. Nh2 $14 {1-0 Lautier,
J-Winants,L/Lyon zt 1990 (61)}) (9. Ne2 dxc4 10. Bxc4 Bb6 (10... cxd4 $5) 11.
dxc5 Qxd1 12. Rxd1 Bxc5 13. b4 Be7 14. Bb2 $14 {1-0 Spassky,B-Fischer,R/
Reykjavik 1972/MainBase (56) is the famous 1st game, where Fischer equalised
and then grabbed the h-pawn. It has all been said before on this one!}) 9...
exd5 10. dxc5 Bxc3 11. bxc3 Bg4 ({Alternatively:} 11... Qa5 12. Qc2 (12. c4
dxc4 (12... Qc3 13. cxd5 Qxa1 14. Qc2 Na5 15. e4 Bd7 16. Bb2 Qa2 17. Nd4 Rfc8
18. Ra1 Rxc5 19. Rxa2 Rxc2 20. Nxc2 $16 {1-0 Novotelnov,N-Smyslov,V/Moscow
1951/URS-ch (43)}) 13. Bxc4 Qc3 14. Qb3 Qxa1 15. Bd2 $5 (15. Bb2 Na5 16. Qc3
Qxb2 17. Qxb2 Nxc4 18. Qb4 Be6 19. Ng5 {is an old line given by Bronstein
which looks rather unclear.}) 15... Qxf1+ 16. Bxf1 {Wells}) (12. Rb1 Qxc5 13.
Qc2 Bg4 14. Rxb7 Bxf3 15. gxf3 Rae8 16. Rb5 $1 (16. a4 $2 {Too slow! Black's
potential for play on the king-side should not be underestimated.} Ne5 {
[%csl Rb7][%cal Ye5f3,Yc5c8,Yc8h3]} 17. Be2 Qc8 18. Rb4 Qh3 19. Ba3 Re6 {
[%cal Ge6g6]} 20. Rfb1 Ne4 21. Rxe4 dxe4 {0-1 Mortensen,P-Hector,J/Naestved op
1988/TD 88\05 (21)}) 16... Qd6 17. Kh1 $1 {[%cal Yg1g3,Yf1g1]} Ne5 18. Be2 Qd7
19. a4 Qh3 20. Qd1 Re6 21. Rg1 Rc8 22. Rg3 Qh4 23. Rb4 $14 {and white has
consolidated, with an extra pawn and potentially strong pieces. 1-0 Rodriguez,
O-Hector,J/Alicante op2 1989/EXT 89op (36)}) 12... Qxc5 13. a4 Qa5 14. Rb1 Qc7
15. c4 dxc4 16. Qxc4 Rd8 17. Bb2 Qe7 18. Rfd1 Be6 19. Qf4 Nd5 20. Qg3 f6 21.
Qh4 h6 22. Nd4 Nxd4 23. Bxd4 b6 24. Qe4 f5 25. Qe5 Qf7 26. Rbc1 Rac8 27. Ba6
Rc7 28. Rxc7 Nxc7 29. Be2 Ne8 30. Rc1 Rc8 31. Rxc8 Bxc8 32. h3 Be6 33. Bd3 Qd7
34. Bb5 {1-0 Sherbakov,R-Petit,R/Metz op 1994/TD 94\02 (34)}) 12. c4 Ne5 13.
cxd5 Bxf3 (13... Nxd5 $6 14. Be4 $1 {'+/-' - Euwe.} Bxf3 15. Bxf3 $1 (15. gxf3
Qg5+ 16. Kh1 Nc3 $13) 15... Nc3 16. Qxd8 Nxf3+ 17. gxf3 Rfxd8 18. Bb2 Ne2+ 19.
Kg2 Rd2 20. Rab1 $16 {[%csl Rb7,Re2]}) (13... Qxd5 $2 14. Bxh7+ $16) 14. gxf3
Qxd5 15. Be2 Qxc5 16. Bb2 Rad8 17. Bd4 Qc8 $132 {[%cal Gc8h3]} 18. Qb1 Rfe8 19.
Bxe5 $6 {'?' Wells. This move undermines the 'raison-d'etre' of white's play
at a stroke. He simply returns without a fight the bishop pair, his major
asset ,for which he has made serious concessions. Why? It can surely only be
fear of an exchange sacrifice. Yes, white's structure is ugly after black
captures on d4, but the evidence is that it does not give enough, eg.} (19. f4
Rxd4 (19... Qh3 20. Qxb7 Rd5 (20... Neg4 21. Bxg4 Nxg4 22. Qg2) 21. f3 Rxd4 22.
exd4 Ng6 23. Bc4 Nxf4 24. Qxf7+ Kh8 25. Ra2 $16 {1-0 Jelen,I-Dizdar,G/Portoroz
1987/CBM 05 (43)}) (19... Ng6 $5 20. Bf3 (20. Bxf6 gxf6 21. Bf3 b6 $13) 20...
b6 $1 $13 (20... Nh4 $6 21. Qxb7 Rd7 22. Qxc8 Nxf3+ 23. Kg2 Nh4+ 24. Kh3 Rxc8
25. Kxh4 $16)) (19... Nc4 $6 20. Bxf6 Nd2 21. Qb2 gxf6 22. Rfd1 $16) 20. exd4
Nc6 (20... Ng6 21. Bf3 Nxf4 (21... Nh4 22. Qxb7 Qh3 23. Bg2 Qg4 24. h3 Qxf4 25.
Rfe1 $16) (21... b6 $5 22. Re1 $14) (21... Qc3 22. Qxb7 Qxd4 23. Rae1 $16) 22.
Qxb7 Ne2+ (22... Qh3 23. Rfe1 $16 {[%cal Rf8a8]}) 23. Kg2 $16) 21. Bf3 Nxd4 22.
Qxb7 Qf5 23. Rae1 Rf8 24. Bg2 Qxf4 25. Qe7 Nc2 26. Rd1 Ng4 27. Qh4 Nd4 28. Rxd4
Qxd4 29. h3 $16 {1-0 Shchekachev,A-Dizdar,G/Paris 1996/EXT 97/ (36). (35)})
19... Rxe5 $36 {[%csl Ge5]} 20. f4 Rc5 21. Bf3 b6 22. Rd1 Rxd1+ 23. Qxd1 g6 $17
{[%csl Ra3][%cal Yc5c1,Rf3b7] Black is better. He dominates the c-file; has
targets in the weak a-pawn and white's potentially loose king position; and
white has no real source of counterplay. Note that the f3 bishop has a fine
looking diagonal, but nothing to hit, and even controls no squares that bare
upon black's aspirations.} 24. Qd6 Kg7 25. Rd1 Qh3 26. Bg2 Qf5 27. h3 Qc2 28.
Qd4 Ra5 $17 {[%csl Ra3] White is bereft of counterplay.} 29. Rd2 Qc1+ 30. Kh2
Rxa3 31. e4 {[%csl Rf4][%cal Ye4e5] White can only aspire to create any play
at the expense of weakening his structure.} Ra4 $1 32. Qe3 Qc4 33. e5 Ne4 $1 (
33... Nh5 $6 34. f5 $132) 34. Bxe4 (34. Rb2 Qc3 $5) 34... Qxe4 35. Qxe4 Rxe4
36. Kg3 Kf8 37. Rd7 a5 38. Rb7 Rb4 39. Kg4 {[%cal Gg4g5,Gg5f6]} h6 $1 40. h4 a4
41. h5 g5 42. Kg3 gxf4+ 43. Kg4 Rb5 {[%cal Gb5a5,Ga4a1,Gf8d8]} 0-1