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Friday, December 10, 2010

Simple chess by Tukmakov

Most of the time chess is a difficult game. But sometimes some players, usually very strong grandmasters, make it a very simple game :-) Have a look at this one, by chess legend Tukmakov, showing that more space can be enough to win a game!

Roemer, Ulrich(2250) vs. Tukmakov, Vladimir B(2580)
Zurich op-A 20th - Zurich - 1996
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. d4 Cf6
2. Cf3 g6
3. Ff4 Fg7
4. e3 d6
5. h3 O-O
6. Fe2 b6
7. O-O Fb7
8. a4 Cc6
9. Cbd2 De8
10. Cc4 a6
11. c3 Td8
12. Db1 Cd5
13. Fh2 e5
14. dxe5 Cxe5
15. Ccxe5 dxe5
16. Td1 De7
17. Da2 e4
18. Cd2 Fe5
19. Fxe5 Dxe5
20. Fc4 Rg7
21. Cf1 Td6
22. Td2 Tfd8
23. Tad1 f5
24. a5 b5
25. Fxd5 Txd5
26. Txd5 Txd5
27. Txd5 Fxd5
28. Da3 Ff7
29. b4 Fc4
30. Dc1 Rf7
31. Dd2 Re7
32. h4 Fd3
33. f4 Dd5
34. Cg3 Db3
35. h5 Re6
36. hxg6 hxg6
37. Dc1 Rd5
38. Cf1 Fxf1
39. Rxf1 Rc4 0-1

Sunday, December 5, 2010

Cmilyte - Demina WWCC

The Women World Chess Championship began yesterday in Turkey. Here is an easy positional win of the first round.

Cmilyte, Viktorija(2514) vs. Demina, Julia(2323)
WCh Women - Antakya TUR - 2010.12.05
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. d4 Cf6
2. c4 e6
3. Cf3 Fb4+
Bogo-indian defense

4. Fd2 a5
( 4... De7 is the main move )

5. g3 d5
( 5... b6 switches to a Queen's indian )

6. Fg2 O-O
7. Dc2 c6
maybe not the best idea ( 7... c5 is more logical )

8. O-O Fe7
9. Fg5
now it's like a semi-slav but with the weird move a5 for black

9...  h6
10. Fxf6 Fxf6
11. Cbd2
planning the typical advance e4

11...  Cd7
( 11... b5!? )

12. e4 dxe4
13. Cxe4 Fe7
this bishop lost a lot of tempi : Bb4-e7-f6-e7

14. Tad1
very comfortable play for white! With a good center and a better development

14...  Dc7
playing for the thematic e5

15. Dc3
stopping black's plan

15...  b6
what else?

16. b3 Fb7
17. Ce5 Tad8
18. c5!
that's really thematic! White block the bishop in b7. On the other hand it's important to check that black can't play an easy Nd7-f6-d5 (which could be met here by Nc4-d6).

18...  b5
( 18... Cf6 19. Cc4 is nice for white ) ( 18... Cxe5 19. dxe5 bxc5 20. Cxc5 almost with a dream positional advantage for white! )

19. f4
Consolidating. White's position is pleasant but now Cmilyte must find a way to advance. ( 19. b4? with the idea to stop b5-b4 and thus locking up the bishop in b7, but it wouldn't work 19... axb4 20. Dxb4 Ta8 with Ra4 coming, with undreamed-of counterplay for black )

19...  Tfe8
black's position is really cramped.

20. a4 Cf8?
a mistake which gives a good opportunity to white ( 20... b4 was normal 21. Dc4 Cf6 22. Cxf6+ Fxf6 23. De2 with a solid edge for white, even if not so easy to turn into victory. )

21. Cd6!
Cmilyte doesn't miss the chance

21...  Fxd6
22. cxd6 Txd6
( 22... Dxd6 23. axb5 is even worse for black )

23. axb5
with a pin and too much pressure on c6

23...  f6
24. Cxc6
white won a pawn and keep better pieces ( 24. b6 was easier 24... Dd8 25. Cc4 winning )

24...  Fxc6?
( 24... Cg6 was better )

25. bxc6
now this passed pawn, very well protected, is a monster

25...  Ta8
26. Dc5 Cg6
27. d5 e5
( 27... Tad8 was the last (very small) hope )

28. Fe4 Ce7
29. fxe5 fxe5
30. Ta1 Cc8
31. Ff5
( 31. b4 +- was simple and strong too )

31...  Db6
32. Dxb6 Cxb6
33. Fe6+ Rh7
34. c7
as it could be forseen the pawn now costs the knight

34...  e4
35. Tac1 h5
( 35... Cc8 36. Tf8 would end the game )

36. c8=D Cxc8
37. Fxc8
black can't even take in d5 :-)

37...  Tb8
38. Ff5+ Rh6
39. Tc6 1-0

Wednesday, December 1, 2010

Very nice study

To start this snowy December, here is a "not so simple not so hard" study of Herbstmann.
8
7
6
5
4
3
2
1
abcdefgh
White to play and win.

Hint : the first idea doesn't work immediately. The second idea does but you will have to find a third idea for that!

Saturday, November 27, 2010

Gros combat Paikidze - Galliamova

En vidéo :


Paikidze, Nazi(2401) vs. Galliamova, Alisa(2487)
Russian Championship Super Final women - Moscow - 2010.11.24
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 c5
2. Cf3 d6
3. d4 cxd4
4. Cxd4 Cf6
5. Cc3 e6
6. f4
un choix intéressant ( 6. g4 l'attaque Keres ) ( 6. Fe2 est classique )

6...  a6
7. Df3
une ligne à part entière ( 7. Fe2 Fe7 8. O-O O-O 9. Rh1 Dc7 10. a4 )

7...  Db6
8. Cb3 Dc7
la Dame a joué deux fois mais le Cb3 trois fois et est moins bien placé

9. g4 b5
10. g5
une ouverture très agressive !

10...  b4
les noirs sont prêts pour le combat !

11. Cb5 axb5
12. gxf6 gxf6
13. Fxb5+ Cd7
14. f5
un coup typique contre cette structure, qui va forcer un affaiblissement

14...  e5
15. Fd3
( 15. Dd3 += avec un bon contrôle des cases blanches )

15...  Fb7
16. O-O
il est toujours difficile de savoir où mettre le Roi dans ce genre de position. Ce coup est cependant un peu risqué. ( 16. Fe3 et soit on laisse le Roi au centre, soit on peut tenter 0-0-0 en sacrifiant a2 ! 16... Fc6 17. O-O-O Txa2 18. Rb1 Ta8 19. Dh5 )

16...  Cb6
17. Fe3 Cc4
un coup typique de sicilienne

18. Fxc4
affaiblit fortement e4 ( 18. Fc1 n'était pas agréable mais limitait un peu les dégâts )

18...  Dxc4
19. Cd2 Tg8+
20. Rh1 Dxc2
Galliamova relève le défi !

21. Tac1 Dd3
( 21... Dxb2 de l'incorrigible module évidemment )

22. Tc7 Db5
23. Tfc1
les blancs ont pris le contrôle de la colonne c en échange du pion, la position est à double tranchant

23...  Td8
il faut défendre le Roi, notamment contre Dh5

24. a4
( 24. Dh5 Td7 25. T7c4 Tg7 ( 25... d5? 26. Tc8+ Fxc8 27. Txc8+ Td8 ( 27... Re7 28. Fc5+ Td6 29. Fxd6+ Rxd6 30. Dxf7 +- ) 28. Txd8+ Rxd8 29. Dxf7 +- ) 26. Fh6 Tg8 27. Fxf8 Txf8 =+ )

24...  bxa3
25. bxa3
menace Tb1

25...  Td7
26. Dd1 Txc7
27. Txc7 Fe7
28. Dc2
la Dame surveille toujours e4 et a fait le tour pour s'approcher du Roi noir

28...  Fd8!
les noirs chassent la Tour très bien placée en 7ème rangée

29. Tc4 d5
et réalisent leur percée thématique !

30. Tb4 Dc6
les noirs ont la paire de Fous, un pion de plus, une meilleure sécurité du Roi, ils peuvent donc même se permettre l'échange des Dames

31. Db1
tandis que les blancs doivent les garder à tout prix et espérer une contre-attaque

31...  Fa8
32. Tb8 d4!
( 32... dxe4? ne permettrait pas l'ouverture de la grande diagonale, le Fou en e3 étant difficile à déloger ! )

33. Ff2
les blancs doivent être très vigilants car si le Cavalier ou la Dame quittent la défense de e4, ils sont carrément mat !

33...  Tg4
les noirs envisagent bien sûr de sacrifier la qualité en e4 !

34. h3 Tf4?!
( 34... Txe4 méritait une sérieuse attention 35. Cxe4 Dxe4+ 36. Dxe4 Fxe4+ 37. Rh2 Rd7 avec une position très agréable pour les noirs : f5 tombe, ce qui fera donc 3 pions passés liés. La seule interrogation est le pion a qui peut s'avérer un peu ennuyeux. ) ( 34... Tg5 suivi de prise en f5, évitait la combinaison blanche )

35. Rg1?
la jeune joueuse manque sa chance ( 35. Fxd4! était un joli coup tactique ! Voyez-vous l'idée sur exd4 ? 35... Txe4! 36. Txd8+ Rxd8 37. Fb6+ Re8 38. Cxe4 Dc4! 39. Rh2 Fxe4 40. Db2 et les noirs sont mieux mais les blancs peuvent espérer )

35...  Txf5
la Tour est évidemment imprenable

36. Rf1
la position est devenue très tactique et difficile à jouer, surtout à l'approche du contrôle de temps

36...  Tf4
37. Db4 Txe4
les noirs se lancent finalement

38. Cxe4 Da6+?
une erreur due au zeitnot ( 38... Dxe4 39. Txd8+ Rxd8 40. Df8+ Rc7 41. Dxf7+ Rb6 42. Dxf6+ Fc6 -/+ était incalculable et difficile à juger en crise de temps )

39. Rg1 Fxe4
40. Fxd4!
cette fois Paikidze a trouvé ce coup !

40...  De2
les joueuses se rendent coup pour coup ( 40... exd4 41. Txd8+ ( ou 41. Dxd4 ) 41... Rxd8 42. Dxd4+ Rc7 43. Dxe4 Dxa3 44. Dxh7 et les blancs respirent mieux )

41. Da4+ Re7
42. Fc5+ Re6
43. De8+ Rf5
44. Dd7+ Rf4
45. Dg4+ Dxg4+
46. hxg4 Fa5
on y voit plus clair. Les blancs ont profité du zeitnot pour s'en sortir. La finale est équilibrée.

47. Tb5
( 47. a4 )

47...  Fc3
48. a4 Fc6
49. Tb6 Fxa4
50. Txf6+ Rxg4
51. Txf7 h5
la position s'est simplifiée et est annulante mais les joueuses doivent terminer la partie avec 30 minutes au KO (après le 40ème coup) !

52. Tg7+ Rf5
53. Fe3 Fd1
ce sont bien sûr les noirs qui jouent pour le gain

54. Rf2 Fg4
55. Rg2 Re4
56. Ff2 Fd4
57. Fh4
( 57. Fxd4 exd4 58. Rf2 était nulle selon les tables de Nalimov )

57...  Rf4
58. Tf7+ Re3
59. Rg3 e4
60. Te7
( 60. Ff6 = )

60...  Rd3
61. Fg5 e3
62. Fxe3
une décision pratique, les blancs ont de bonnes chances de nulle. En effet, tout joueur ayant les bases en finales peut trouver quelques idées pour annuler : sacrifier la Tour contre pion et Fou naturellement, ou simplement sacrifier sur le Fou de cases blanches puisque les noirs se retrouveraient avec la case de promotion de la mauvaise couleur.

62...  Fxe3
63. Rh4 Fb6
64. Te8
( 64. Th7 Fd8+ 65. Rg3 Re4 )

64...  Fd4
65. Rg5 Fd1
66. Te7 Fe3+
67. Rh4 Fe2
68. Th7 Fb6
69. Th8 Fd4
70. Te8 Ff6+
71. Rh3 Ff1+
72. Rh2?
Selon Nalimov, alors que c'était nulle théorique depuis la prise du pion e3, ce coup est une faute qui offre le gain aux noirs en... 69 coups. Il s'agit là de considérations échappant aux simples mortels que nous sommes. ( 72. Rg3 = )

72...  h4?
par contre ce coup est une faute reconnaissable à oeil humain ! Voyez-vous comment les blancs annulent? ( 72... Rd4 -/+ gagnait selon l'ordinateur. Nous autres humains préférerons utiliser l'expression "conservait des chances de gain". )

73. Tf8??
une occasion manquée sûrement à cause du zeitnot ( 73. Te1! forçant la disparition du Fou de cases blanches, annulait en 2 coups 73... Fe2 74. Txe2 Rxe2 = )

73...  Fe5+
74. Rh1 Fe2
Galliamova ne laissera plus d'occasion à sa jeune adversaire

75. Tf2 Fg4
76. Tf7 h3
77. Th7 Re3
78. Th4 Fc8
79. Th7 Rf2
80. Tc7
un coup astucieux pour jouer pour le pat ( 80. Tf7+ pouvait encore résister quelques temps 80... Rg3 81. Ta7 Fe6 82. Ta5 Ff4 -/+ et à force de manoeuvres les noirs l'emporteront (selon la théorie !) )

80...  Fg4
81. Tf7+ Rg3
( sûrement pas 81... Ff3+?? 82. Txf3+ Rxf3 = )

82. Tf1 Fe2
83. Tf5
( 83. Tf2!? Fd3 84. Td2 Fe4+ 85. Rg1 h2+ 86. Txh2 Fd4+ 87. Rf1 Rxh2 -+ )

83...  Ff4
ponctue un beau combat ! 0-1

Tuesday, November 23, 2010

Partie folle Kosteniuk - Paikidze

Une fois n'est pas coutume, voici une partie commentée en français. (it's rare but here is a game commented in French)
Kosteniuk, Alexandra(2507) vs. Paikidze, Nazi(2401)
Russian Championship Super Final women - Moscow - 2010.11.20
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 c6
2. d4 d5
3. e5 Ff5
4. Cf3 e6
5. Fe2 c5
6. Fe3 cxd4
7. Cxd4 Ce7
8. c4 Cbc6
9. Da4 a6
( 9... dxc4 10. Cc3 a6 11. O-O-O Da5 12. Dxa5 Cxa5 13. Cxf5 Cxf5 14. Fb6 Cc6 15. f4 Tc8 16. Ff3 Fe7 = Leko,P (2751)-Anand,V (2783)/Miskolc HUN 2009/1/2-1/2 (42) )

10. Cd2 Dd7
le premier choix de l'ordinateur, donc pas une nouveauté très surprenante ! ( 10... Tc8 11. Tc1 Dd7 12. cxd5 Cxd5 13. Cxc6 Fb4 14. O-O Txc6 15. Txc6 Dxc6 16. Dxc6+ bxc6 17. Cb3 += Kosteniuk,A (2524)-Girya,O (2414)/Khanty-Mansiysk RUS 2010/1/2-1/2 (34) )

11. cxd5 Cxd5
12. Cxc6 bxc6
13. Tc1 Fb4
14. O-O!
un fort sacrifice de qualité

14...  Cxe3
( 14... O-O était plus sage du coup, même si les blancs gardent un petit plus du fait de la structure )

15. Dxb4 Cxf1
16. Cc4 De7
17. Cd6+ Rf8
18. Txc6
les blancs ne sont pas pressés de prendre le Cf1 !

18...  Rg8
19. Fxf1 a5
20. Dc5 +/-
les blancs sont gagnants, ils ont un pion pour la qualité mais dominent tout l'échiquier de manière impressionnante

20...  h5
( 20... Fg6 pour défendre f7 21. Tc7 Dd8 22. Fb5 +/- )

21. Tc7
magnifique Tour en 7ème rangée

21...  Df8
22. Fa6
une idée orignale mais pas nécessaire ( on peut comprendre que les blancs ne soient pas très intéressés par obtenir la finale survenant après 22. Txf7 Dxf7 23. Cxf7 Rxf7 24. Dc7+ Rg6 25. h4 += ) ( Par contre 22. Fb5 n"aurait pas laissé de chances aux noirs, par exemple : 22... Fg6 23. h3 Rh7 24. De3 Td8 rêvant de rendre la qualité sur le monstre en d6 et le pion e5 25. Da3 pas question ! 25... f6 luttant contre le point d'appui du Cd6 ( 25... Tb8 26. Dxa5 Ta8 27. Dc3 Txa2 28. Fe8 +- ) 26. Fd3 éliminant la seule bonne pièce noire 26... fxe5 27. Fxg6+ Rxg6 28. Dg3+ Rh7 29. Cf7 Tc8 30. Tb7 Tb8 ( 30... Rg8 31. Dg6 +- avec une nouvelle domination totale ) 31. Cg5+ Rg8 32. Cxe6 +- )

22...  Fg6
23. Fc8
pour couper complètement le jeu en 2, cependant sans obtenir quelque chose de concret

23...  Rh7
24. f4 Dd8
25. g3
les blancs ne savent pas trop comment procéder. Le jeu d'échecs est exigeant : il ne suffit pas d'obtenir une position de rêve, il faut aussi savoir comment la transformer en victoire !

25...  Tb8
26. Fb7 f6?
( 26... Te8!! était une libération inespérée 27. Cxe8 ( 27. h4 Te7 = ) 27... Dd1+ 28. Rf2 Txb7! ( 28... Dd2+ 29. Rf3 = ) 29. Txb7 Fd3 30. Re3 De2+ 31. Rd4 Df2+ 32. Rxd3 Dxc5 =+ )

27. Fe4 f5
quelle horreur pour le Fg6 !

28. Fb7 Tf8?
( 28... Te8! toujours le même thème )

29. b3
( 29. h4 pour tenter de bloquer le Fg6 29... a4 30. b4 axb3 31. axb3 Fe8 32. b4 Tf7! la seule chance pour se libérer 33. Cxf7 Dd1+ 34. Rg2 Txb7! 35. Txb7 De2+ 36. Df2 Fc6+ 37. Rg1 Dd1+ 38. Df1 Dd4+ 39. Rh2 Fxb7 = )

29...  h4
bien sûr, pour trouver enfin du contre-jeu

30. Rg2 Fh5
les noirs s'accrochent à leur seule pièce active

31. Dc6
( 31. Dc3 Th8 32. h3 hxg3 33. Fc8 Dh4 34. Dxg3 Dxg3+ 35. Rxg3 Ff7! 36. Txf7 Thxc8 37. Cxc8 Txc8 38. Ta7 Tc3+ 39. Rh4 Tf3 40. Txa5 Txf4+ 41. Rg5 Tf2 42. Ta6 Tg2+ 43. Rf4 g5+ 44. Rf3 Th2 45. Rg3 Td2 46. Txe6 Td3+ 47. Rf2 Txh3 48. Tf6 Th2+ 49. Rg3 Txa2 50. Txf5 Rg6 51. Tf6+ Rh5 = )

31...  Fe8
32. Dc3 Fd7
33. Rf2?
( 33. Dxa5 +/- aurait laisser les noirs agonisant 33... g5 34. Fd5! +- )

33...  Rh8
pour préparer g5

34. Dxa5 g5
maintenant le terrain devient un peu glissant, avec l'aile Roi qui s'ouvre sur les 2 Rois

35. Dc3 h3
36. a4?
( 36. fxg5 gagnait assez facilement 36... f4 37. g4 f3 38. Dc2 Tf4 39. Dd2 Dxc7 40. Dxf4 Dc2+ 41. Rg3 +- )

36...  gxf4
37. gxf4 Dh4+
38. Re3?
( 38. Dg3 était un chemin sûr vers la victoire 38... Dxg3+ 39. Rxg3 Tg8+ 40. Rf3 +- les pions a et b vont faire la différence )

38...  Fe8
39. a5
( 39. Fc8 Dh6 40. Tb7 Txb7 41. Fxb7 Dg7 42. De1 Dc7 43. Rd3 +/- avec une relative sécurité du Roi, laissant aux blancs de meilleures chances )

39...  Tg8
40. Cxf5 Dg4
41. De1?
une gaffe ( 41. Cg3 était le coup logique 41... Txb7! 42. Txb7 Dxg3+ 43. hxg3 Txg3+ 44. Rf2 Txc3 45. Tb8 Tc2+ 46. Rg1 Tg2+ 47. Rh1 Tg8 48. Rh2 Fc6 49. Txg8+ Rxg8 50. Rxh3 Fb5 = )

41...  exf5
maintenant les noirs jouent avec une Tour de plus, même si l'issue reste incertaine !

42. a6 Fh5
43. e6 Tge8
44. Rd3
malgré la Tour de moins et leur Roi en plein centre, les blancs ont assez d'activité et de pions passés pour annuler ! ( 44. e7? Tbd8 -+ )

44...  Tbd8+
45. Rc2 Rg8
( 45... Dd1+ 46. Dxd1 Fxd1+ 47. Rc3 Txe6 48. a7 = )

46. a7
( 46. e7 avec le chaos sur l'échiquier ! )

46...  Dxf4
47. Td7?
la dernière erreur ( 47. Dg1+ en intermédiaire faisait encore nulle 47... Fg4 48. Td7 Txd7 49. exd7 Dc7+ 50. Rb1 Dxd7 51. a8=D Txa8 52. Fxa8 = )

47...  Dxh2+
( ou 47... Txd7 48. exd7 Dc7+ 49. Rb2 Txe1 50. a8=D+ Rh7 -+ )

48. Rc3 Txd7
49. exd7 Dc7+
50. Rd4 Dxd7+
51. Rc3 Txe1
52. a8=D+ Rg7
53. Fd5 Te8
54. Da5 Te5
une partie complètement folle où Kosteniuk aurait mérité la victoire 0-1

Friday, November 19, 2010

Kramnik - Shirov of last week

Here is my analysis of this wild game played in the last round of the Memorial Tal tournament. Both player were suffering before the game, Shirov 3/8, Kramnik 3,5/8.
Kramnik, Vladimir(2791) vs. Shirov, Alexei(2735)
5th Tal Memorial - Moscow/Russia - 2010.11.14
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. d4 d5
2. c4 c6
3. Cf3 Cf6
4. Cc3 e6
5. Fg5 Cbd7
6. e3 Da5
this is the Cambridge Springs defense. The name derives from a 1904 tournament in Cambridge Springs, Pennsylvania in which the defense was used several times. Practitioners of the opening have included Efim Bogoljubov, Vasily Smyslov, and Garry Kasparov.

7. cxd5 Cxd5
8. Tc1
a very rare move by Kramnik ( the main line goes 8. Dd2 Fb4 9. Tc1 h6 10. Fh4 c5 11. a3 Fxc3 12. bxc3 b6 ( 12... Dxa3 ) 13. Fd3 Fa6 14. O-O with a small plus for white )

8...  h6
9. Fh4 Fb4
10. a3!?
Kramnik sacrifices a pawn, the idea is well known though this position is new ( 10. Dd2 would transpose in the main line but it was not Kramnik's idea )

10...  Fxc3+
11. bxc3 Dxa3
12. Dd2 b5
( 12... c5 would be the main line with the rare 12...Qxa3 )

13. Fd3 O-O
14. O-O Fb7
15. c4
creating a weakness in c6 ( 15. e4 is another possibility 15... C5b6 16. Ta1 Dd6 with compensations for white but probably not more )

15...  bxc4
16. Fxc4 C5b6
17. Fd3 Tfc8
( safer was 17... Fa6 18. Fxa6 Dxa6 19. Txc6 Tfc8 = )

18. Fb1
( 18. Fe4 Df8 19. Tfd1 and black can't move a lot )

18...  c5
Shirov exchanges his weak pawn

19. dxc5
( Kramnik wasn't sure of 19. Fe7 and showed this variation : 19... Cd5 20. Fd6 Tc6 21. dxc5 Cxc5 22. Txc5 Txc5 ( 22... Txd6? 23. Ta5 Db3 24. e4 ) )

19...  Cxc5
20. Dd6 Da4
( 20... Tc6 would have forced the Queen to return in d1 or d2 21. Dd1 ( 21. Dg3 Ce4 22. Fxe4 Txc1 23. Fxb7 Txf1+ 24. Rxf1 Dd3+ 25. Re1 Dc3+ 26. Rf1 with a draw, as shown by Kramnik ) )

21. Cd4
( 21. Txc5 Fxf3 =+ would be good for black because the Bh4 is hanging. )

21...  Dd7
( 21... Ce4 )

22. Df4 g5?!
Shipov said you can't play like this if you are a human! ( 22... f5 was probably dangerous too! ) ( 22... Dd5 is more human 23. Dg4 h5 24. Dg3 Ce4 25. Fxe4 Dxe4 and black is more than ok )

23. Df6
( 23. Fxg5 wasn't good because of 23... Cd5 ( but not the tempting 23... Dd5? because of the nice 24. Fh7+! Rf8 25. Fxh6+ Re8 26. Dg3 +- ) )

23...  gxh4
24. Dxh6 f5
( 24... Ce4 was the other way to block the Bb1 25. Txc8+ Txc8 26. f3 e5 27. fxe4 exd4 28. e5 d3 29. Dg5+ Rf8 30. Dh6+ Re7 31. Df6+ Re8 = with a draw )

25. Txc5!
wow, a piece down Kramnik sacrifices an exchange!

25...  Txc5
26. Cxe6
this totally destroys the last shield of the black king

26...  Tac8
( 26... Td5 keeps the material but 27. e4 will open the diagonal to the black king, with good chances for white. )

27. Dg6+ Rh8
28. Df6+ Rg8
29. Fxf5
now the black king can't count on any pawn protection, which is always very dangerous

29...  Txf5
Shirov knows very well he has to give some material back to reduce white's attack ( 29... Tc1 30. Dg5+ Rh8 31. Dxh4+ Rg8 32. Dg5+ Rh8 33. f3 to open the path for the white king 33... Txf1+ 34. Rxf1 despite being a rook down, white is by no way worse )

30. Dxf5 Fd5
( Better was 30... De7 to protect the h pawn! A draw is likely. )

31. Dg5+ Rf7
32. Cf4 Fc4?
( 32... Fb3 this strange move kept some chances according to the computer. But in practice black's position remains very difficult to play. )

33. Ta1 Tg8
( 33... Tc7 34. h3 += )

34. Dh5+ Rf8
35. Dxh4
white has now enough material for the bishop and is still attacking ( 35. Td1 )

35...  Ff7
it's really difficult to defend this position with a very weak king and no possibility to counter attack

36. h3
simply preventing all back rank mates

36...  Tg7
( 36... Cc4 37. Dh6+ Re7 38. Da6 Tb8 += )

37. Dh8+ Tg8
38. Df6 Cd5
39. Dd4 Df5
40. Txa7
the last pawn

40...  Cxf4
41. exf4
of course white is not ready to exchange queens, he wants to take other benefits from the position of the black king

41...  Dd5
42. Db4+ Rg7
43. De7 Rh8?
( 43... Tc8 activating the rook was a more stubborn defense )

44. Dh4+
( 44. Df6+ Tg7 45. g4 Rg8 46. Tc7 Dd1+ 47. Rh2 De2 48. Dd4 Th7 49. Rg3 pawns will advance more and more, white is probably winning )

44...  Dh5
( 44... Rg7 45. Dg5+ Dxg5 46. fxg5 Rg6 47. f4 Fc4 48. Td7 Ta8 49. g4 impressive pawns! ( 49. Td6+? Rf5 50. Td4 Fe2 51. Rf2 Te8 and it's unclear if white could win because 52. g4+ Fxg4 53. hxg4+ Rxg4 is a draw ) 49... Ta3 50. Rh2 Fe6 51. Td6 Rf7 52. f5 Fa2 53. h4 Ta4 54. g6+ Re7 55. Tb6 Txg4 56. h5 Th4+ 57. Rg3 Txh5 58. f6+ Rd7 59. Rg4 Th1 60. f7 Tg1+ 61. Rh5 Tf1 62. Tb7+ Rc6 63. Ta7 Fe6 64. Rh6 +- )

45. Df6+
( 45. Dxh5+ Fxh5 46. Rh2 Fe2 47. Te7 ( 47. g4? Fxg4 48. hxg4 Txg4 is draw ) 47... Fd1 48. f5 Tg5 49. Te1 Fh5 50. Te5 Rh7 ( 50... Rg7? would trap his own rook :-) 51. f4 Rf6 52. fxg5+ Rxe5 53. g4 +- ) 51. f3 Ff7 ( 51... Fxf3 52. gxf3 would be a funny ffh endgame, probably winning though ) 52. g4 must win )

45...  Tg7
46. f5 Rg8
( 46... Dd1+ 47. Rh2 Dd5 48. g4 Dd2 49. Rg3 Dd3+ 50. Rh4 Db3 51. Ta8+ Fg8 52. Dd4 +- )

47. Rh2 De2
48. Dd4 Dc4?
helping white even if it was winning anyway ( 48... Db5 49. f6 Tg5 50. Df4 Dd5 51. g4 Dc5 52. Te7 Dd5 53. h4 Tg6 54. g5 +- )

49. Dxc4 Fxc4
50. Txg7+ Rxg7
51. g4 +-
with 3 pawns it would be draw but 4 is too much for the bishop

51...  Rf6
52. Rg3 Re5
53. h4 Fd5
( 53... Rf6 54. Rf4 Fd3 55. g5+ Rg7 56. h5 +- )

54. h5 Fb3
55. h6 Fg8
56. Rh4 Rf6
57. f3 Fh7
58. Rh5 Fg8
59. g5+
nice game by Kramnik 1-0

Monday, November 15, 2010

World youth ratings updated

My pages on world youth ratings were updated with November ratings and 2011 categories.

Sunday, November 14, 2010

Rook ending

GL(2152) vs. SL(2196)
N1 - France - 2010.11.13
"Must win" situation. How should black proceed ?

Tuesday, November 9, 2010

Karjakin - Shirov played yesterday

Karjakin, Sergey(2760) vs. Shirov, Alexei(2735)
5th Tal Memorial - Moscow/Russia - 2010.11.08
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 e5
2. Cf3 Cc6
3. Fb5 a6
4. Fa4 Cf6
5. O-O b5
6. Fb3 Fc5
Archangelsk defence is one of Shirov's favorites

7. c3 d6
8. d4 Fb6
9. Fe3
9.a4 and 9.h3 are the main moves here

9...  O-O
10. Cbd2 Fg4
11. h3 Fh5
12. Fg5 exd4
12...Na5 is tried more often but not very successfully. Before this game 12... exd4 has been played only once.

13. Fd5
this sharp move leads to a variation where black will get 2 pawns for the exchange.

13...  dxc3
14. Fxc6 cxd2
15. Fxa8 Dxa8
16. Fxf6 gxf6
17. Dxd2 Dxe4
here we are. This looks promising for black : bishop pair and 2 pawns for the exchange, this is balanced

18. Tfe1 Df5
19. Ch4 Dg5
20. Dxg5+ fxg5
black's structure is better now but white gets an active knight

21. Cf5 Fg6
22. Ce7+ Rg7
23. Cd5
( That's modern chess opening preparation! 23. Tad1 was Jobava-Grigoryan in 2008. White won in 48 moves, reaching a rook vs bishop+2 pawns endgame. )

23...  Tb8
24. Tad1 Rf8
preventing Re7 thanks to c6

25. g4!
white needs to play very actively because black could end better in the endgame. Karjakin would like to place his knight firmly in f6.

25...  c5
26. h4
( the computer is afraid of the bishop pair and asks to take in b6 26. Cxb6 Txb6 27. Rg2 is still balanced. Black has better chances but it's difficult to activate the bishop, the king and the d pawn! 27... b4 28. Td5 c4 29. Txg5 c3 30. b3 Tc6 31. f3 f6 32. Ta5 Ff7 33. Rf2 d5 finally, but still no way to play with the Kf8 and white have active pieces 34. Re3 Te6+ 35. Rf2 Td6 36. Tc5 Td7 37. a3 d4 38. axb4 Fxb3 = )

26...  gxh4
27. f4
discreetly threatening to trap the bishop :)

27...  f5
28. g5
nice idea by Karjakin: now he got f6 for his knight and the Bg6 is less strong.

28...  Ff7
29. Cf6 c4+
( 29... Td8 30. Cxh7+ Rg7 31. Cf6 d5 32. Te7 c4+ 33. Rg2 is almost the same than the game, white having enough activity in compensation )

30. Rg2 Td8
31. Cxh7+ Rg7
32. Cf6 b4
33. Te7
( 33. Cd5 with the idea Ne7, was safer 33... Fxd5+ 34. Txd5 c3 35. bxc3 bxc3 36. Te7+ Rg8 37. Te2 Tc8 38. Tc2 Tc4 = )

33...  c3
34. bxc3 bxc3
35. Cd7
very good activity for white

35...  Fa5
36. g6!
impressive, 2B+2p against R+N can be really strong but Karjakin played so actively that it's Shirov who is having a hard time!

36...  Rxg6
37. Rh3
threatening to win the Bf7

37...  Txd7
only move

38. Txd7 Fb4
39. Rxh4 Fxa2
3 pawns for 2 exchanges: nice!

40. T1xd6+!
white immediately gives one exchange back to eliminate the c and d passed pawns ( 40. Tc7? could become dangerous for white, the bishop pair can be very strong to support passed pawns. 40... a5 41. Rg3 Fb3 42. Tc1 Rf6 43. Rf3 a4 44. Re3 Fc5+ 45. Rd3 c2 46. Txc2 sooner or later white will have to give one exchange back 46... Fxc2+ 47. Rxc2 Re6 48. Tc8 a3 49. Rc3 Rd5 50. Rd3 = )

40...  Fxd6
41. Txd6+ Rf7
42. Tc6
of course the c pawn is more important

42...  a5
43. Txc3
now black is playing for a draw. This game was played in the fourth round and Shirov lost first 3 games in endgames! One could imagine what he had in mind here : "no no please let me draw this one...".

43...  a4
44. Tc6
cutting the black king

44...  Re7
45. Rg3
( 45. Ta6 Fb3 46. Rg5 Fc2 47. Tc6 Fd3 48. Tc3 Fb1! only move ( 48... Fe4 49. Tc4 +- ) 49. Tc1 Fd3 = )

45...  Rd7
46. Ta6 Fb3
47. Rf2 Rc7
48. Re1 Rb7
49. Th6
( 49. Ta5 was more challenging 49... Rb6 50. Te5! Rc6 51. Txf5 a3 52. Rd2 a2 53. Ta5 Rd6 54. Rc3 Fd5 55. Ta6+ Re7 56. Rd4 Fb3 57. Re5 Rf7 58. f5 Rg7! 59. Ta7+ Ff7 = )

49...  Rc7
50. Rd2 a3
51. Rc3 a2
52. Rb2 Rd7
53. Ta6 Fc4
54. Ta5 Fe6
55. Ta7+ Rc6
56. Ta6+ Rd7
57. Rc3 Rc7
58. Rd4 Rb7
59. Ta3 Rb6
60. Re5 Fc4
61. Rxf5
it's a draw

61...  Rc5
62. Rg6 Rb4
63. Txa2 Fxa2
Nice game. It's impressive and instructive how Karjakin played with the "supposed slightly worse" material R+N against 2B+2p. 1/2-1/2

Saturday, November 6, 2010

Delightful study of the weekend

Kakovin - 1936
White to play and win. (level medium)

Tuesday, November 2, 2010

Ivanchuk wins Cap d'Agde

Vassily Ivanchuk wins Cap d'Agde rapid tournament with a 1,5-0,5 victory against last edition's winner Hikaru Nakamura. In this final match both games opened with a King's gambit!! I commented the first one.

V. Ivanchuk(2754) vs. H. Nakamura(2733)
Le trophée CCAS 2010 - Cap d'agde - 2010.10.31
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 e5
2. f4!?
wow, Ivanchuk shows another time he is a great chess player! It's the final of the tournament, he faces very strong Nakamura against whom he lost 2 years ago here, and he goes for a King's gambit!!

2...  Cc6!?
good choice by Nakamura to play a rare defense to face Ivanchuk's surprise

3. Cf3 f5
this looks crazy but it's a solid defense! I played it a couple of times myself after having seen it in a "101 surprises in the openings" book by Burgess 10 years ago.

4. d3
of course white has many other possibilities but Chuky decides to play securely

4...  d6
5. Cc3 Cf6
6. g3 g6
7. Fg2 Fg7
that's funny, one could expect wild stuff from a King's gambit but finally here is this symetrical position which leads to a positional game

8. fxe5 dxe5
9. Fg5 h6
10. Fe3 O-O
11. O-O fxe4
12. dxe4 Fe6
almost symetrical but black played h6 which is not very significant for now

13. a3 Rh7
14. Rh1
both player played prophylactic moves with their King

14...  a6
( the computer is claiming that black could take a small edge with 14... Fc4 15. Te1 ( 15. Dxd8 Taxd8 16. Tfd1 Cg4 17. Fc5 Cd4! getting the f2 square ) 15... De8! 16. Dc1 Td8 with a very small plus for black )

15. Fg1 Tf7
16. De2 Cd4
17. Dd3 Cxf3
18. Dxf3 Td7
( 18... Cg4 is not useful 19. De2 )

19. Tad1 Fg4
20. Txd7
white had to foresee that of course

20...  Fxf3
21. Txd8 Fxg2+
22. Rxg2 Txd8
so, it's dead draw, isn't it?

23. Fe3 g5
after the game a player told me that Nakamura said he played like an idiot by putting his pawns on black squares...

24. h3 Rg6
25. g4
whereas white are putting their ones on white...

25...  c6
I'm not sure if white is already winning here but it's a textbook exemple. White has the good bishop, black the bad.

26. Tf2 b5
ok, that's white!

27. Td2 Txd2+
28. Fxd2 Ff8
29. Rf3 h5?
one could think it's good idea to exchange a pawn which was on black, but it's not sure at all, because now g5 is weak. ( 29... Cd7 must be a better defense )

30. Ce2 hxg4+
31. hxg4 Cd7
( 31... Fc5 32. Cc1 Fb6 33. Cd3 Cd7 34. b3 Fd8 35. Fe3 Fe7 36. a4 bxa4 37. bxa4 Rf6 black suffers but maybe he can hold )

32. Cc1 c5?!
oops, another pawn on black... ( 32... Cc5 must be better )

33. Ca2 Cb8?
( 33... c4 was forced 34. Fa5 Fd6 35. Cb4 Cb8 36. b3 cxb3 37. cxb3 Rf6 38. Cd5+ Re6 39. b4 Cc6 40. Fb6 Cd4+ 41. Fxd4 ( 41. Re3 Cc2+ 42. Rd3 Cxa3 43. Fd8 Cc4 44. Fxg5 Rf7 45. Fd8 Rg6 = and black must hold ) 41... exd4 42. Re2 Ff4 43. Rd3 Re5 44. Cc7 Fc1 45. Cxa6 Fxa3 46. Cb8 Rd6 47. Rxd4 Fxb4 48. e5+ Re6 49. Ca6 Fc3+ 50. Rxc3 Rxe5 = )

34. c4!
Grandmaster technique in action! This blocks c5 on black and maybe seals black's fate!

34...  bxc4
( 34... Cc6! 35. Cc3 Cd4+ 36. Re3 b4 37. axb4 cxb4 38. Ca4 Ce6 g5 is so weak! 39. Rd3 Fc5 40. Re2 a5 41. Cxc5 Cxc5 42. Fe3 Cxe4 43. c5 Rf7 44. Rf3 Cf6 45. Fxg5 Cd5 remains unclear )

35. Cc3 Cc6
36. Cd5 Cd4+
37. Re3 Rf7
38. Cb6 Re6
39. Cxc4 Fe7
40. Fa5 Cb5
( 40... Rf6 41. Rd3 Re6 42. Ce3 Cf3 43. Rc4 Ff8 44. Cf1 to play Bb6 without Nd2+ 44... Rd6 and the outcome is still unclear )

41. Rd3 Cd6?
( 41... Cd4 transposes in 40...Kf6 )

42. Cxd6
and the American player resigned, understanding that this endgame with 3 black pawns on black is totally winning for white ( 42. Cxd6 Rxd6 ( 42... Fxd6 43. Rc4 Fe7 44. Fb6 wins a pawn and the game ) 43. Rc4 Rc6 44. Fd2 Ff6 45. Fe3 Fe7 46. b3 a5 47. a4 +- is a very wellknown zugzwang in this kind of endings! ) 1-0

Thursday, October 28, 2010

Brillancy by Shirov 2 days ago

Shirov, Alexei(2749) vs. Tiviakov, Sergei(2637)
Unive Crown Group - Hoogeveen NED - 2010.10.26
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 d5
2. exd5 Dxd5
3. Cc3 Dd6
Tiviakov is fond of this move and worked a lot on this variation. But one can say what he wants, this is not a normal place for a Queen in the opening!

4. d4 Cf6
5. Cf3 c6
6. Ce5 Cbd7
7. f4
the two main moves are 7.Nc4 and 7.Bf4

7...  Cb6
8. g4 Cbd5
( 8... Fe6 9. Fg2 g6 10. O-O is Shirov-Tiviakov, Benidorn 2008, 1-0 ! )

9. Fg2
this seems to be a little improvement on 9.g5 played in 2 games in 2008 and 2009 (black won in both!)

9...  g6
10. g5 Cxc3
11. bxc3 Cd5
12. c4
forcing the knight to go to an ugly square

12...  Cc7
13. c5 Dd8
so, how could Qxd5-Qd6-Qd8 have been useful?

14. d5!
you know Shirov...

14...  cxd5
( 14... Cxd5? 15. c4 f6 16. cxd5 fxe5 17. dxc6 and white has some edge )

15. c4
you just can't give Shirov so much space and better placed pieces without being attacked!

15...  e6
16. Fb2
both white bishops are beautiful

16...  Fg7
( 16... Tg8 may be better but is not very appealing! 17. Cg4 Fe7 18. Cf6+ Fxf6 19. Fxf6 Dd7 20. O-O and you only have to look a few seconds to the position to understand that white is just winning )

17. Cc6
of course

17...  bxc6
18. Fxg7 Tg8
19. Fe5
nothing can challenge this bishop on dark squares

19...  Fd7
very nice bishop!! Well, I'm not sure, is the knight on c7 really better? Sure he can go to a6! Or more seriously in d5 after dxc4.

20. O-O
dream position

20...  Tb8
maybe some activity? ( 20... dxc4? is unfortunately not playable because of 21. Ff6 Db8 22. Tb1 Cb5 23. Txb5 cxb5 24. Fxa8 +- )

21. Da4
well, the only square on the b file for the rook is b7 actually...

21...  Tb7
( 21... dxc4 may have been the last (very small) hope 22. Fxc6 ( 22. Tfd1 Cd5 yes, the Be5 is worth a rook ) 22... Tc8 23. Fxd7+ Dxd7 24. c6 Dd5 25. Tac1 +/- )

22. Tab1 Dc8
23. Txb7 Dxb7
24. Tf2 d4?
a mistake but black was dead lost anyway because of Rb2 coming

25. Da5 Rd8
( 25... Ca6 26. Ff6 Dc8 27. Tb2 with some Rb7 idea, is of course crushing )

26. Fe4
Tiviakov has had enough of this ugly position! Effortless win by Shirov. 1-0

Sunday, October 24, 2010

Nice attacking chess by untitled player

Under 2200 players can play very good attacking chess too! Have a look at this one.

Mossong, Hubert(2184) vs. Katzourakis, Pavlos(2141)
26. European Club Cup 2010 - Plovdiv BUL - 2010.10.18
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 c5
2. Cc3 a6
3. g3 b5
4. Fg2 Fb7
5. Cge2 e6
6. O-O d6
7. d3 Cf6
8. f4 Dc7
9. h3 Cbd7
10. De1 Fe7
11. f5 b4
12. fxe6 fxe6
13. Cf4!
like in a Sozin!

13...  bxc3
14. Cxe6 Db6
15. Cxg7+!
attacking chess, white saw he can let black take in b2 ( 15. bxc3 was possible but less strong )

15...  Rf7
16. Cf5 cxb2
17. Fxb2 Dxb2
18. Tb1 Dxc2
19. Txb7
only one pawn for the piece but both rook targetting the black king and a killer Nf5!

19...  Thd8
( 19... Da4! 20. d4! cxd4 21. e5! dxe5 22. Cxe7 Rxe7 23. Dxe5+ with a decisive attack )

20. e5!
opening all lines, white is totally winning

20...  dxe5
21. Cxe7 Tab8
( 21... Rxe7 22. Dxe5+ Rf8 23. Txf6+ with a quick mate )

22. Cc6
nice move to end a nice game ( 22. Txd7 Txd7 23. Dxe5 was crushing and nice too ) 1-0

Wednesday, October 20, 2010

Bad surprise

Andriasian, Zaven(2579) vs. Khmelniker, Ilya(2483)
26. European Club Cup 2010 - Plovdiv BUL - 2010.10.18
8
7
6
5
4
3
2
1
abcdefgh
Black just played 18...Rad8. Which tactical problem did he totally overlook ?

Thursday, October 14, 2010

Grandmaster plan in N vs B endgame

This nice endgame was played some days ago in Bundesliga.

Postny, Evgeny(2595) vs. Sandipan, Chanda(2641)
Bundesliga - Germany - 2010.10.10
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
How would you assess this endgame?

25. c5
this looks logical to free the bishop's way ( 25. f4! exf3 to get e5 and g5 for the knight 26. Fxf3 maybe with the pressure on c6/b7 white could save the game? 26... Cf7 27. Rd2 Cg5 black has to pressurize h3 or white will save the game! ( 27... Ce5? 28. Fe2 Rg5 black is better : space advantage and white's king has problems to become active. And h3 and h5 are weak, despite being on white squares. 29. c5 and here black has to find 29... h6! ( 29... f4? 30. h6! saves the game thanks to the clever idea Bd1-c2 ( 30. exf4+ Rxf4 31. c4 h6 32. b5 Cd7 33. Rc3 Cxc5 34. Rb4 Ce4 35. bxc6 bxc6 36. c5 Cf2 37. Ff1 Rg3 -+ ) 30... Rf5 ( 30... f3 31. Fd1 Cc4+ 32. Re1 only move 32... Cxe3 33. Fxf3 Rf4 34. Fe2 Cf5 35. Fg4 Ce7 36. Rf2 Rg5 37. Re3 Rxh6 38. Rf4 = and with an alive King and b7/c6 on white, white is ok ) 31. exf4 Rxf4 32. Fd1 Cf3+ 33. Rd3 Rg3 34. Re3 Cg5 35. Fc2 Rxh3 36. Rf4 Cf7 37. b5! Rg2 ( 37... Cxh6 38. bxc6 bxc6 39. Fe4 Rh2 40. Rg5 Cf7+ 41. Rxh4 Cd8 42. Fxh7 a5 43. Fc2 = ) 38. Fxh7 Cxh6 39. bxc6 bxc6 40. Fe4+ Rg1 41. Fxc6 h3 42. Fd5 h2 43. c6 Cf7 44. c7 Cd6 45. Re5 Cc8 46. Rd4 = ( 46. Re6?? a5 -+ ) ) 30. Fd1 ( 30. c4 f4 31. exf4+ Rxf4 32. Rc3 Rg3 -+ ) 30... Rf6 31. Fe2 Cf7 back to the good g5 square! So it was stupid to play Ne5. 32. Ff1 Re5 33. Re2 Cg5 34. Fg2 f4 35. c4 Rf5 36. exf4 Rxf4 37. b5 Ce6 38. bxc6 bxc6 39. Rd3 Cxc5+ 40. Rc3 a5 41. Fxc6 Rg3 -+ ) 28. Fg2 Re5 better King, pressure on h3, it's winning, if black plays carefully 29. Re2 f4 ( 29... b6 is less natural 30. Fxc6 Cxh3 31. Rf3 h6 32. Rg2 Cg5 33. Fa4 Ce4 34. Rh3 Cxc3 35. Fb3 Re4 ( 35... a5? 36. c5! only move 36... a4 37. cxb6 Rd6 38. Fe6 Cd1 39. Rxh4 Rc6 40. Rg3 Rxb6 41. Rf4 a3 42. Rxf5 Cxe3+ 43. Rg6 Rb5 threatening Nc4 44. Fb3 = ) 36. Fc2+ Rxe3 37. Fxf5 Rd4 38. Fe6 b5 39. cxb5 Cxb5 40. Rxh4 Rc3 41. Rg4 Rxb4 42. Fg8 Cd4 43. Rf4 a5 -+ ) 30. c5 ( 30. b5? gives black a free a-passed pawn 30... f3+! 31. Fxf3 Cxf3 32. Rxf3 a5 -+ ) 30... Rf5 white will very soon be in some zugzwang 31. exf4 Rxf4 32. b5 ( 32. h6 Rg3 33. Rf1 Cf3 34. Fh1 Rf4 35. Rf2 Cg5 36. Fg2 Ce4+ 37. Re1 Cxc3 38. Ff1 Cd5 39. b5 cxb5 40. Fxb5 Cf6 -+ ) 32... Ce4 33. bxc6 bxc6 34. Rd3 ( 34. c4 a5 35. Rd3 a4 36. Rc2 Cxc5 37. Rb2 Rg3 38. Fxc6 Rxh3 39. Ra3 Rg4 40. Rb4 h3 -+ ) 34... Cxc5+ 35. Rc4 Ce4 36. h6 a5 37. Rb3 c5 38. Ra4 Cxc3+ 39. Rxa5 Ce4 40. Rb5 Cf2 41. Rxc5 Rg3 42. Ff1 Cxh3 -+ )

25...  Cf7
26. Rd2 Cg5
27. Ff1 Re5
black is on top. More space, better King and pressure on h3.

28. Rc2 f4
29. Rd1 f3!
taking more and more space! It's very difficult for the computer to find a winning plan! Could you? ( 29... fxe3 30. fxe3 and black will win h5 but it's not easy to win the game )

30. Rd2 h6
the first step is to grab h5, this will allow to play h6-h5

31. Rc2 Ch7
now h3 is not attacked any more but the white bishop can't take benefit of that

32. Rd2 Cf6
33. Fc4 Cxh5
34. Ff7
would have the bishop been able to reach c8, of course it wouldn't be the same story

34...  Cf6
35. Fc4
( 35. Fg6!? could almost have saved the game! 35... a5! another black's idea ( 35... Cg4 a very important idea, coming again and again in this endgame 36. Re1 a5 37. bxa5 Cf6 38. Rd2 Cd7 39. Ff7 Cxc5 40. Fc4 to stop Nd3. I'm not sure black can win now ) 36. bxa5 Cd7 37. Fe8 Cxc5 38. c4 white may feel out of danger but black is able to win 38... Rd6 39. Fg6 Rc7 40. Ff5 ( 40. Fh5 Cd3 41. Fxf3 Cxf2 42. Re2 Cxh3 43. Fxe4 Cg5 44. Fd3 Rd6 45. Ff5 Ce6 46. Rf3 Cc5 47. Fc8 Rc7 48. Ff5 Cb3 -+ 49. Rg4 Cxa5 50. Fd3 Rd6 51. Rxh4 Rc5 52. Rh5 Cxc4 53. e4 Rd4 54. Fe2 b5 55. Rxh6 b4 56. Fd1 Ce3 57. Fa4 c5 -+ ) 40... Rb8 41. Rc3 Cd3 42. Fxe4 Cxf2 43. Fxf3 Cxh3 44. Rd4 Cg5 45. Fh1 Ra7 46. e4 Ra6 47. Rc5 Rxa5 48. e5 h3 49. Rd6 Rb4 50. e6 Cxe6 51. Rxe6 Rxc4 52. Rf5 h2 53. Rg4 Rd3 54. Rg3 c5 55. Fxb7 c4 56. Rxh2 c3 57. Fc8 Re4 -+ )

35...  Ch7 -+
going back to g5 ( or 35... Cg4 36. Re1 Rf6 37. Ff1 Rf5 38. Fc4 Ce5 39. Ff1 h5 will allow Ng4 for ever 40. Rd2 Re6 41. c4 Cg4! 42. Re1 Ch2 -+ 43. b5 Re5 -+ zugzwang )

36. Rd1 Cg5
37. Ff1 Rd5
stopping all Bc4. Now the last step: h5 and Ng4 are unstoppable

38. Rd2
( 38. Rc2 Cf7 39. Rb3 Ce5 40. Rc2 ( 40. c4+ Re6 41. Rc3 Rf5 42. Rd4 h5 43. b5 Cg4 -+ ) 40... h5 41. Rd2 Cg4 42. Re1 Ch2 -+ with zugzwang to come )

38...  Cf7
39. c4+
( 39. Rc2 Ce5 40. Rb3 h5 41. c4+ Re6 42. b5 Cg4 -+ )

39...  Re5
40. Rc3 h5
41. Rd2 Ch6
42. Re1 Cg4
with total domination and zugzwang! 0-1

Sunday, October 10, 2010

Areshchenko: Scheveningen killer

Ukrainien strong GM Alexander Areshchenko won 2 Scheveningen sicilians in a row in Bundesliga (German team championship). You will find them commented below.
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 c5
2. Cf3 d6
3. d4 cxd4
4. Cxd4 Cf6
5. Cc3 e6
6. Fe2 a6
7. O-O Fe7
8. f4 Dc7
9. Rh1 Cc6
10. Fe3 O-O
11. De1 Cxd4
12. Fxd4 b5
13. a3 Fb7
14. Dg3 Tad8
( 14... Fc6 Areshchenko-Lammers, Bundesliga 2010 (7) )

15. Tae1 Td7
16. Fd3 Te8
17. Te3 g6
18. Tef3 d5
19. e5 Ce4
black is fine

20. De1 b4
( 20... Cxc3 simple chess was good too 21. Fxc3 d4 opening for the bishop 22. Fa5 Dc8 23. Th3 Da8 = )

21. axb4 Fxb4
22. Th3 Dd8
( 22... Tc8 = )

23. De3 Cxc3
24. bxc3 Ff8
25. f5!
it takes some time for the computer to find Areshchenko's move

25...  exf5
( 25... Dc7 cold blood defense 26. Dg3 exf5 forced 27. Fxf5 with better chances for white )

26. Fxf5
white's idea

26...  gxf5
( 26... Tc7 27. e6! crushes black )

27. Tg3+ Rh8
( 27... Fg7 28. Txg7+ Rxg7 29. e6+ Rg6 30. Tf3 +- )

28. e6+ f6
29. Txf5
( 29. Dg5 Fg7 30. Dxf5 Tc7 31. Th3 h6 32. Txh6+ Fxh6 33. Fxf6+ Dxf6 34. Dxf6+ Fg7 looks unclear )

29...  Fg7
30. Th5
now black can' t save his position. White is pressing both on dark squares (with the bishop) and light squares (on h7). And the small e6 pawn is very useful too. ( 30. Txf6 would have been flashy 30... Fxf6 ( 30... Dxf6 31. Fxf6 Fxf6 32. exd7 Txe3 33. Txe3 Rg7 34. Te6 Fd8 35. Te8 Ff6 36. d8=D Fxd8 37. Txd8 Fc6 38. Td6 +- ) 31. e7! with a nice picture 31... Dxe7 32. Fxf6+ )

30...  Tc7
31. Dd3 h6
the bishop is trying to hold black's castle ( 31... Ff8 32. Dg6 mating! Black can't defend h7, g8 and f6! )
thus...

32. Txg7
bang! ( 32. De3 +- was the calm but as efficient alternative )

32...  Txg7
( 32... Rxg7 33. Dg3+ Rh7 34. Dh4 Rg7 35. Txh6 Txe6 36. Th7+ Rf8 37. Dh6+ Re8 38. Dg6+ Rf8 39. Fc5+ mating )

33. Txh6+ Rg8
34. Dh3
black will be mated very soon 1-0
Do not miss the excellent live website.

Wednesday, October 6, 2010

Funny tactic

Kofidis, Andreas(2385) vs. Gogolis, Alexandros(2330)
Athens - 1994
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abcdefgh
Black just sacrificed with 14...Rxf5. How should white react?

Sunday, October 3, 2010

Final results of chess olympiad

The last round was incredible. Ukraine couldn't win against Israel (2-2) whereas Russia wasn't able to overcome Spain (2-2)! Ukraine won again after 2004. No win for Russia since 2002.

Some big clashes of this last round:
Poland 1,5 - 2,5 Hungary
France 2 - 2 Armenia
Azerbaijan 2 - 2 Russia-3
Cuba 1,5 - 2,5 USA
England 2 - 2 Czech Republic
India 2,5 - 1,5 Georgia

Final ranking in the open section:
1.Ukraine 19
2.Russia 18
3.Israel 17
4.Hungary 17

Individual board gold medals: (with Rating Performance)
1st board: Vassily Ivanchuk UKR 2890
2nd board: Emil Sutovsky ISR 2895
3rd board: Vitaly Teterev BLR 2853
4th board: Sergey Karjakin RUS 2859
5th board: Sebastien Feller FRA 2702

All results here

Thursday, September 30, 2010

King's hunting at chess olympiad

Rodshtein, Maxim(2632) vs. Novita, Anjas(2356)
39th Olympiad Men - Khanty-Mansiysk RUS - 2010.09.22
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
This game was played in the match Israel vs Indonesia

1. d4 Cf6
2. c4 e6
3. Cf3 d5
4. g3 c6
5. Fg2 dxc4
6. Ce5 Fb4+
7. Fd2 Dxd4
8. Fxb4 Dxe5
white sacrificed 2 pawns to get the dark-squared bishop and keep the black king in the center. The hunting is open !

9. Ca3 b5
10. Fd6 Dxb2
third pawn !

11. O-O a6
12. Tb1 Dc3
black don't want the fourth :-) ( 12... Dxa2 the computer wants ! 13. Fxb8 Txb8 14. Ta1 Db2 15. Dd6 Tb6 16. Dc7 but he agrees the price is a whole rook ! 16... O-O 17. Dxb6 Dxe2 with a crazy position, probably winning for white though )

13. Fxb8 Txb8
14. Dd6
still no castle

14...  Tb6
15. Cxc4
( another good possibility was 15. Tfc1 Da5 16. Dc7 white lets black castling but creates a very unpleasant pin 16... O-O 17. Cxc4 bxc4 18. Dxb6 Dxa2 19. Tb2 Da3 20. Fxc6 +/- )

15...  Dxc4
16. Tbc1 Dxe2
( 16... Dxa2 17. Txc6 Txc6 18. Fxc6+ Fd7 19. Fxd7+ Cxd7 20. Td1 Dd5 ( 20... g6? 21. Dxd7+ Rf8 22. Dd6+ Rg7 23. De5+ +- ) 21. Txd5 exd5 22. Dxd5 and white is winning )

17. Fxc6+
( 17. Txc6? Txc6 18. Fxc6+ Cd7 19. Fxd7+ Fxd7 20. Td1 g6! and black survives )

17...  Cd7
18. Tfd1!?
( Rodshtein would like more than this: 18. Fxd7+ Fxd7 19. Dxb6 O-O 20. Dxa6 +/- )

18...  Rd8
only move

19. Dd4 Txc6
20. Txc6 Re7
black is still ahead in material but his king is still hunted !

21. Tc7 h5
black tries to create some counter play

22. Tdc1 h4?
( 22... f6 was better, the position remains very unclear )

23. Dxg7 hxg3
24. Dg5+ f6
25. Dg7+
the black king is forced to try his luck in the center of the board

25...  Rd6
26. Dxg3+ e5?
( More resilient was 26... Ce5 27. T7c2 Dd3 28. Txc8 Dxg3+ 29. hxg3 Txc8 30. Txc8 a5 31. Rf1 +/- and white has to work to win that )

27. T7c6+ Rd5
unfortunately forced

28. Dg2+ e4
29. Dg3 e3
30. Td6+
the simplest ( 30. Dg2+ was even stronger 30... Rd4 31. Td6+ Re5 32. f4+ Rxd6 ( 32... Rxf4 33. Dxe2 ) 33. Tc6+ Re7 34. Dg7+ Rd8 35. Dxh8+ Re7 36. Dg7+ Rd8 37. Dg8+ and black will be mated )

30...  Re4
31. f3+ Dxf3
32. Td4+ Rxd4
33. Dxf3 +- Ce5
34. Td1+ Rc4
35. Dxe3 Th3
36. Dd4#
The king was finally trapped ! 1-0

Monday, September 27, 2010

Ivanchuk 5/5 at Chess Olympiad!

Vassily Ivanchuk must play between 2900 and 3000 Elo when he is in good shape. For now he is, he won all his Olympiad games so far. You can find them below. In all 5 games the same feeling: he wins effortlessly...
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer

1. e4 Cf6
2. Cc3 e5
3. Fc4 Cxe4
4. Cxe4 d5
5. d4 dxc4
6. De2 Dxd4
7. Cf3 Dd5
8. Cc3 Fb4
9. O-O Fxc3
10. bxc3 Cc6
11. Fa3 f6
12. Cd4 Fd7
13. Tfd1 O-O-O
14. Cb3 Df7
15. Cc5 b6
16. Cxd7 Txd7
17. Txd7 Dxd7
18. Dxc4 Td8
19. h3 Rb7
20. Tb1 Dd5
21. Da4 Dxa2
22. Tb2 Dd5
23. Rh2 Dd2
24. Fc5 Dxc3 0-1

Thursday, September 23, 2010

Vachier-Lagrave outplayed Gelfand

Vachier-Lagrave, Maxime(2721) vs. Gelfand, Boris(2751)
39th Olympiad Men - Khanty-Mansiysk RUS - 2010.09.23
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
This game was played on the first board of the France-Israel match

1. d4
No Petroff, thanks!

1...  d5
2. c4 c6
3. Cc3 Cf6
4. Cf3 e6
5. Fg5 h6
6. Fh4 dxc4
7. e4 g5
8. Fg3 b5
Maxime prefers this sharp anti-moscow gambit

9. Fe2 Fb7
10. h4 g4
11. Ce5 Tg8
12. Fxg4 Cbd7
13. Cxd7 Dxd7
14. Ff3 b4
( 14... c5 was played 3 times in the Gelfand - Leko match last month, Gelfand was white and scored 2,5/3. By playing b4 he probably wanted to avoid some home preparation... but according to Rybka it's the best move and Maxime was ready )

15. Ca4 c5
attacking both white central pawns

16. Cxc5 Fxc5
17. dxc5 Cxe4
18. Dxd7+ Rxd7
19. O-O-O+
( 19. Td1+ Re7 20. Fd6+ Re8 = )

19...  Re8
20. Ff4 Cxc5
21. Fxb7 Cxb7
22. Fxh6 Cc5
( 22... Txg2 23. Fe3 and the Nb7 is not very impressive, but the h pawn is still ready to run )

23. Fe3 Cd3+
24. Rb1 Txg2
25. h5
in the interview after the game, Vachier-Lagrave said he was prepared until there approximatively. White has sacrificed a pawn to get the h-passed pawn

25...  f5
this move looks logical to come with the king

26. h6 Rf7
27. h7 Th8
White played h5 h6 h7 but what to do now ?

28. b3!
destabilizing the knight

28...  e5
black wants to stop Bd4 to take in f2 ( 28... Cxf2 29. Td7+ Re8 ( 29... Rf6? 30. Th6+ Tg6 31. Fd4+ e5 32. Fxe5+ Rxe5 33. Txg6 +- ) 30. Txa7 Cxh1 31. Ta8+ Rf7 32. Txh8 Th2 33. bxc4 Cg3 34. Ff4 Th1+ 35. Rc2 Ce2 36. Fe5 f4 37. Rd2 Cc3 38. Fxf4 Th5 39. Fe5! Ce4+ 40. Rd3 Cf2+ 41. Rc2 Cg4 42. Fd6 +- )

29. bxc4
Wath carefully this second passed pawn...

29...  Cxf2
30. Fxf2 Txf2
at first sight one could think this endgame is balanced

31. c5
the sentence of this game is : passed pawns should be pushed !

31...  Tf3
Boris knows since a very long time that rooks should be behind passed pawns, so he is going to c3. But amazingly he is already dead lost!! ( 31... e4 32. c6 e3 33. c7 e2 34. Tc1 +- )

32. c6 +-
( 32. Tc1? Td3 33. c6 Tdd8 34. c7 Tc8 beautiful picture :-) But it must be draw )

32...  Tc3
33. Td7+ Rg6
( 33... Re6 34. Th6# is unexpected ! ) ( 33... Re8 34. Tg1 Txc6 35. Txa7 +- )

34. c7
impressive: 2 pawns reached the seventh rank after a mere 34 moves

34...  f4
35. Td6+ Rg7
36. Tg1+ Rf7
( 36... Rxh7 37. Th1+ Rg7 38. Td7+ Rg8 39. Td8+ Rg7 40. Tdxh8 +- )

37. Td8
Maxime still had 1 hour on his clock. Very few players can say they defeated the ultra solid and experimented Boris Gelfand with so much ease. 1-0

Monday, September 20, 2010

39th chess Olympiad

I know it's not very original but Chess Olympiad are such a beautiful event I can't resist speaking of it!

In 2010 it will be played in Khanty-Mansiysk (Russia).

In the Open section, 150 teams are expected.
A tough battle is predictable between Russia-1 (Kramnik, Grischuk, Svidler, Karjakin) and Ukraine (Eljanov, Ivanchuk, Ponomariov, Efimenko). But there are a lot of other strong teams like China, Hungary (with Judit), Armenia (2006 and 2008 titles holder!!), Azerbaijan (withouth Gashimov), France (without Bacrot), Israël, England (experience+youth), etc.
Russia (last time winner in... 2002) will have 5 teams in Open, Russia-2 being 4th seed and Russia-3 19th!
Past winners

In the Women section, 108 teams are expected.
Here too Russia-1 is the hot favorite but hasn't win since... 1986!! Main rivals will be China, Ukraine and Georgia, as usual.
Past winners

First round will be played on September 21st, 11th round on October 3rd.

Friday, September 17, 2010

My Youth Ratings page

I worked on it for a while and I'm finally happy to announce the creation of my page on youth chess players sorted out by their FIDE ratings. You will find:
  • World tops 10 (boys&girls) in each category (U10 U12 U14 U16 U18 U20)
  • Full world ranking (all players) in each category
  • Country ranking in each category
  • Possibility to compare each country ranking to the world ranking 
Feedbacks are welcome!

I will probably update these pages on each new ratings list.
Next month (19-31 October) will take place 2010 World Youth Chess Championship in Greece.

Tuesday, September 14, 2010

Crazy computer tactical pattern

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abcdefgh
White took a knight in c6, Black (thus a piece down) just played Qd7, pinning the rook. After 1.Rc4 b5 The computer says white can stay in the game with the stunning 2.Ne5!! . Try to understand why.

(you can see the answer by clicking one time on the board and then with the right arrow of your keyboard)

Saturday, September 11, 2010

Armageddon blitz

Vladimir Kramnik earned the 4th place for the 2010 Bilbao tournament (October) by winning the sudden death blitz game against Levon Aronian. Before that they played two 4'+3'' games, Kramnik won the first and had an easy draw in the second but forgot his clock and lost by time.
Here you can see these 3 blitz games :
http://www.bilbaofinalmasters.com/2010/en/fotos-y-videos/
As we can see, the end of the last one was somehow chaotic, but that's forced with only a few seconds on the clock. I would even say that these player are really dexterous and nifty.
It would have been quite unfair if Kramnik wouldn't have qualified because in slow games he won 1,5/2 against Aronian. I have no idea why direct encounter is still not the first criterion to decide between 2 players when one of them won, it's an heresy!

But no chess fan could be satisfied with this kind of end between world class players. It makes me remember 2 famous cases of sudden death in 2008 :

Krush - Zatonskih (US championship)



Socko - Foisor S. (Women World Championship) (beginning at 1:15)




In Socko - Foisor, first the arbiter decided it was a draw, but then Socko made an official claim which was accepted and she won the game, thus qualifying for the next round.

Losing the way Krush lost or the way Foisor lost, are definitely unsatisfactory for chess. I understand that at a point organizers want to put an end to the match, but in my opinion armageddon blitz should never be played without increments. Why not playing these armageddon with 5+2 for white (forced to win) and 4+2 for black? Would this really be an advantage for black? I'm not sure.
What is your opinion?

Wednesday, September 8, 2010

Double exchange sacrifice stories

The 5th game of the Gelfand - Leko rapid match played some days ago was a fantastic battle featuring 2 Rooks against Bishop+Knight+pawn+activity. Here is this great game, I added some comments and variations to the already good job of match commentators Berkes and Meszaros.
This made me think of another game with a double exchange sacrifice, Zhu Chen - Taimanov 1997. You can see it here too. Let me know if other games with this pattern come in your mind.

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abcdefgh
*

Sunday, September 5, 2010

Ivan's oversight

Docx, Stefan(2342) vs. Sokolov, Ivan(2641)
InventiChess 2010 - Antwerp - 2010.09.03
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abcdefgh
Black just played Rxe3. Which tactical problem did he overlook ?

Friday, September 3, 2010

New FIDE ratings: young leaders

Boys:
U20: Carlsen, Magnus 2826 NOR
U18: Caruana, Fabiano 2700 ITA
U16: Giri, Anish 2677 NED
U14: Nyzhnyk, Illya 2538 UKR
U12: Artemiev, Vladislav 2356 RUS
U10: Sevian, Samuel 2105 USA
Girls:
U20: Muzychuk, Anna 2535 SLO
U18: Muzychuk, Mariya 2464 UKR
U16: Hou, Yifan 2578 CHN
U14: Zhai, Mo 2148 CHN
U12: Sidorova, Anna 2124 RUS
U10: Rosado Perez, Maria Jose 1981 COL

Wednesday, September 1, 2010

August report of the blog

Chess all over the world in August, it was :
  • 31 articles
  • 2 games commented in video
  • 10 commented games
  • 9 endgames
  • 11 selected exercises (all answers are here)
  • the first 3 games of Hammer in Arctic Stars commented here the same day at 21:07
  • Andreikin-Stupak commented some days before chess.com
  • Edouard-Tkachiev commented one day before chessbase.com
  • comments on French championships, British championships, World junior championships, among others
  • 1108 pages seen, thanks!

In September I will probably publish once every 2-3 days.

Monday, August 30, 2010

Knight endgame

Frolyanov, D.(2587) vs. Tomashevsky, E.(2708)
ch-RUS Higher League - Irkutsk RUS - 2010.08.26
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
This endgame is better for black because their knight is more active, but probably not winning

51. a3 h4
52. g3 f5
53. Rg2
( 53. gxh4? f4 54. h5 ( 54. Rg2 Rh6 is similar to the game ) 54... gxh5 ( 54... g5 55. h4! Rh6 56. hxg5+ Rxg5 57. Rg2 Rxh5 58. Rh3 Cd1 59. Cb1 Rg5 60. Cd2 Ce3 61. Cb1 Cc4 62. Rg2 Rh4 63. Rh2 ) 55. Rg2 Rf8 56. Rf1 Re7 57. Cb3 Rd7 58. Ca5 Cb1 59. Cc6 Cxa3 60. Re2 Rc7 61. Rd3 Rb6 62. Rc3 Rc5 63. Rb3 Cc4 64. Rc3 h4 65. Cb4 Cb2 66. Cc6 Cd1+ 67. Rc2 Cf2 68. Ce7 Cxh3 69. Cg6 Cg1 70. Cxh4 Ce2 -+ )

53...  hxg3
54. Rxg3 Rh6
55. Rf2 f4
56. Rg2 Rg5
57. Rh2 Rh5
58. Rg2 Cd1
59. Rh2 Ce3
60. Cb1 Cc2
the white knight is paralyzed, it's not funny for white

61. Rg1 Rh6
62. Rf2 Rg5
63. Rg1 Rf6
but black has to create threats on both sides of the board to win, which is not an easy task here

64. Rf2
( 64. h4 Rg7 ( 64... Re7 ) 65. Rf1 Cd4 66. Cd2 Rh6 67. Rg2 Rh5 68. Rh3 Cc2 69. Cb1 Ce1 70. Cc3 Cxf3 71. Cxb5 Cxh4 72. Cxd6 g5 73. Cf5! g4+ 74. Rh2 g3+ 75. Cxg3+ fxg3+ 76. Rxg3 Cg6 77. a4 Rg5 78. a5 Ce7 79. a6 Cc8 80. Rf3 Rf6 81. Rg4 Ca7 82. Rh4 Re7 83. Rg5 Rd6 84. Rf5 Cb5 85. Rf6 = )

64...  Re7
65. Rg2 Re8
66. Rh2 Rf7
67. Rg1 Rf8
68. Rf2 Re7
69. Rg2 Ce3+
70. Rf2 Cc4
71. Rg2
( 71. Re2 Rd7 72. Rd3 Rc7 73. a4 Cb2+ 74. Rc3 Cxa4+ 75. Rb4 Cc5 ( 75... Rb6 76. Ca3 = ) 76. Rxb5 Cb3 77. Rc4 Cd4 78. Cd2 = )

71...  g5
72. h4??
White can't play this ! Cat and mouse play by black worked. White were on defense and lost their calm, wanting to draw by force. This can often happen when defending a long time slightly worse endgames. ( 72. Rf2 Rd7 73. Rf1 Ce3+ 74. Re2 Cc2 75. Rd3 Cd4 76. Cd2 Rc7 77. Rc3 Rb6 78. Rb4 Ce2 79. Cb1 Cc1 ( 79... Cg1 ) 80. a4 bxa4 81. Cd2 Ce2 82. Cc4+ Rc7 83. Cd2 Cg1 84. Rxa4 Cxh3 85. Rb4 Cf2 86. Rc3 g4 87. fxg4 Cxg4 88. Cf3 Cf2 89. Cd2 Rd7 90. Rc4 Rc8 91. Rb5 Rb7 92. Ra5 Cd3 93. Rb5 Rc7 94. Ra5 Rd7 95. Rb5 Cc5 96. Rb6 Ca4+ 97. Rb5 Cb2 98. Rb6 Cd1 99. Rb5 I'm not sure black can win that )

72...  gxh4
73. Rh3 Rd7
74. Rxh4 Rc7 -+
75. Rg5 Rb6
76. Rf6 Rc5
77. Re7 Rd4
78. Rd7 Re3
79. Rc6 Rxf3
80. Rxb5 Cb2
81. Rc6 Re3
82. Rxd6 f3
83. Re7 Cc4
84. Cc3 Rd2
85. d6 Cxd6 0-1

Sunday, August 29, 2010

Sunday's rook endgame, key idea

"Chess teaches you to control the initial excitement you feel when you see something that looks good and it trains you to think objectively when you're in trouble." - Stanley Kubrick

Sébastien - Wilfried
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hgfedcba
Black to play, a pawn down. How to draw ?
(not very difficult)

Saturday, August 28, 2010

Hammer's unlucky day

Arctic Securities Chess Stars began today in Norway, with Carlsen, Anand, Polgar and Hammer. Hammer was the unlucky player of the day (he missed a draw and 2 wins!). I commented his 3 games below. Don't miss Carlsen's incredible mistake against him.
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
Symetrical pawn structures, same material, nothing really special, but Anand will try to put some pressure on his young opponent

31...  h5
( 31... Rf7 keeping things as they are, for now, looks more logical )

32. g4 hxg4
33. fxg4
now it's not symetrical any more, but it's still equal

33...  g5
34. Re2 Rf7
35. Rd3 Re6
36. Cd2 Cb8
( 36... Rd6 37. h4 gxh4 38. Fxh4 Re6 and even if e5 and f6 are on dark squares, it must be equal )

37. b4 axb4
( 37... Fb6 38. Cc4 Cd7 39. h4 gxh4 40. Fxh4 c6 41. Rc2 Fd8 42. Ff2 axb4 43. cxb4 Cb8 44. Fe1 Ca6 45. Ce3 Fe7 46. Rb3 b5 47. a5 Ff8 = )

38. Cb3 Fb6
39. cxb4 c6
40. Rc4 Cd7
( 40... Ca6 41. a5 Fe3 42. b5 cxb5+ 43. Rxb5 Cc7+ 44. Rc4 b6 = )

41. a5 Fe3
42. b5 cxb5+
43. Rxb5 Cb8
( 43... Fa7 = 44. Fb4 Fd4 45. Cxd4+ ( 45. Cc5+ Cxc5 46. Fxc5 Fxc5 47. Rxc5 Rd7 48. Rb6 Rc8 49. a6 bxa6 50. Rxa6 Rc7 51. Rb5 Rb7 = ) 45... exd4 46. Rc4 Re5 47. Rd3 Cb8 48. Fe1 Cc6 49. Fg3+ Re6 50. Fc7 Rd7 51. Fb6 Re6 52. Fxd4 Cxa5 = )

44. Cc5+
forcing a favourable exchange

44...  Fxc5
45. Rxc5
but despite white small advantages, it's not enough to win

45...  Cd7+
( 45... Cc6?? 46. Rb6 Cd8 doesn't hold 47. Rc7 Re7 48. Fd2 Re8 49. Fb4 Cc6 50. a6 +- )

46. Rb5 Rd6
47. Fb4+ Re6
( 47... Rc7? 48. Fe7 Rb8 49. Rc4 b6 50. axb6 Cxb6+ 51. Rb5 Cc8 52. Fxf6 Cd6+ 53. Rc6 Cxe4 54. Fxe5+ Rc8 55. Fd4 Rd8 56. Rd5 Cg3 57. Ff6+ Re8 58. Fxg5 +- )

48. a6 bxa6+
49. Rxa6
black are dominated by e4, the Bb4 and soon white king coming back, but it's still a draw

49...  Rf7
( 49... Cb8+?? 50. Rb7 Cd7 51. Rc7 zugzwang )

50. Rb7 f5??
Hammer probably thought the endgame was lost, but it wasn't!! ( 50... Cf8 51. Fxf8 Rxf8 52. Rc6 ( 52. Rc8 Re8 53. Rc7 Re7 54. Rc6 Re6 55. Rc5 Re7 56. Rd5 Rd7 = ) 52... Re7 ( 52... Re8?? wanting to take the opposition, is a well known mistake 53. Rd6 Rf7 54. Rd7 Rg6 55. Re8 Rg7 56. Re7 Rg6 57. Rf8 +- ) 53. Rc7 Re6 maybe the move Hammer missed ( 53... Re8?? 54. Rd6 +- -52...Ke8 ) 54. Rd8 Rd6 ( 54... Rf7?? 55. Rd7 +- ) 55. Re8 Rc5 and black draws because he will promote the e pawn 56. Re7 Rd4 57. Rxf6 Rxe4 58. Rxg5 Rf3 59. h4 e4 60. h5 e3 61. h6 e2 62. h7 e1=D 63. h8=D Dd2+ 64. Rf5 Df4+ 65. Re6 Rxg4 = ) ( 50... Re8?? 51. Rc7 Cf8 52. Fxf8 Rxf8 53. Rd7 Rf7 54. Rd6 +- )

51. exf5 e4
52. Rc6 Ce5+
53. Rd5 Cd3
54. Fd2 Cf2
( 54... Rf6 55. Fe3 +- )

55. Fxg5 Cxh3
56. Fe3 1-0

Friday, August 27, 2010

The good choice

White is on the attack. How to proceed now ?
Allocated time: < 1 min.

Thursday, August 26, 2010

Another black disaster in Spain

Graf, A.(2590) vs. Rubio Tapia,J.(2103)
Team Ch-ESP - Sestao ESP - 2010.08.26
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
1. d4 Cf6 2. c4 g6 3. Cc3 Fg7 4. e4 d6 5. f3 O-O 6. Fe3 Cbd7 7. Ch3 an interesting setup 7...  e5 8. Fe2!? a rare move, usually white play 8.d5 8...  Ch5 9. O-O f5 a risky decision, the center is not closed and black's castle can be weakened 10. exf5 gxf5 11. f4 thanks to the Nh3 11...  exf4?! ( 11... exd4 12. Fxd4 Chf6 was more logical, even if white keeps an edge ) 12. Ff2! gaining time on the Nh5 12...  Chf6 13. Cxf4 excellent square for a knight 13...  Te8 14. Fh4 black has already a very embarrassing position after a mere 14 moves 14...  c6 15. Ch5 Db6 ( 15... Cf8 trying to clog his castle 16. Fg4 flashy 16... Cg6 17. Fg5 h6 18. Fxf6 Fxf6 19. Fxf5 Fxf5 20. Txf5 +/- ) 16. Cxg7 Rxg7 17. Dd2 now you can count many weaknesses in black side: dark squares (like yesterday's game!), light squares, back rank... 17...  Ce4 18. Cxe4 Txe4 19. c5! dxc5 20. Dg5+ Rh8 21. Fc4 Tg4 22. Dxg4! not difficult but pleasant! Do you see the end? 22...  fxg4 23. Tf8+! Rg7 24. Tg8+ 1-0

It's interesting to see that Graf won another game in the same 24 moves in 1998 with this variation (but 8.d5).

Wednesday, August 25, 2010

Miniaturized master

Rodshtein, M.(2609) vs. Leniart, A.(2423)
Sants Open A - La Bordeta ESP - 2010.08.25
Position de départCoup précédentCoup suivantPosition finaleJouer les coups automatiquementArrêter de jouer
1. Cf3 Cf6 2. c4 g6 3. Cc3 Fg7 4. e4 c5 5. d4 cxd4 6. Cxd4 Cc6 7. Fe3 Cg4!? 8. Dxg4 Fxd4? It has already been tried (without success!) but it's an unlogical move : usually white work hard to exchange this bishop, for example with Qd2 and Bh6. So, exchanging it for free seems really strange. ( 8... Cxd4 9. Dd1 Ce6 10. Tc1 is the main line of 8...Ng4 ) 9. Fxd4 Cxd4 10. O-O-O Cc6 moreover this knight has to move again! All this looks really ugly for black. 11. Df4 d6 12. c5 very logical 12...  O-O 13. h4! ( 13. cxd6 Fe6 and black will try to complicate the game ) 13...  h5 14. Fe2 Da5 15. g4 white don't care about the d pawn, they only want to mate this poor black king without his fianchetted bishop! 15...  Cd4? black tries something but it can't work when there are so many threats on his king ( 15... Dxc5 16. Td5! to prevent Qe5 16... Db4 17. a3 Db6 18. gxh5 +- and I would not like to be the black king... ) ( 15... hxg4 16. h5 with a strong attack ) 16. Txd4 e5 black's idea but they forgot a small detail : their king! 17. Dh6 exd4 18. Cd5 Dd8 19. g5 1-0

Who said only beginners let their poor king alone with all dark squares weakened ? :-)