Showing posts with label missed chance. Show all posts
Showing posts with label missed chance. Show all posts

8.7.15

Untypical Miss

Vladimir Kramnik is famous for his great technique, but even the best can sometimes miss a chance. This is exactly what happened in his game against Liviu- Dieter Nisipeanu from round six of the Sparkassen Chess Meeting.
A game that I liked (ChessBase 13)

[Event "43rd GM 2015"]
[Site "Dortmund GER"]
[Date "2015.07.04"]
[Round "6"]
[White "Kramnik, V."]
[Black "Nisipeanu, LD."]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2783"]
[BlackElo "2654"]
[Annotator "Bojkov, Doggers"]
[PlyCount "165"]
[EventDate "2015.06.26"]

1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 c5 5. Bb2 Nc6 6. cxd5 exd5 7. Bb5 Bd6 8. d4
{It is curious that so far Vladimir Kramnik follows a game of his great rival
Veselin Topalov.} cxd4 ({Nisipeanu deviates from this game, which went} 8...
O-O 9. dxc5 Bxc5 10. O-O Bg4 11. Nc3 Rc8 12. Rc1 a6 {and here instead of} 13.
Be2 {that was played in the game, White had the strong shot} (13. Nxd5 $1 Qxd5
14. Qxd5 Nxd5 15. Rxc5 Ncb4 (15... axb5 16. Rxd5) 16. Rxc8 Rxc8 17. Bc4 {with
an extra pawn.}) 13... Ba7 14. h3 Bh5 15. Nh4 Bg6 16. Nxg6 hxg6 {Topalov,V
(2793)-Karjakin,S (2767) Stavanger 2013}) 9. Nxd4 O-O 10. O-O Qc7 11. h3 $146 {
[%csl Rg4][%cal Rh3g4] Diagram [#] A logical novelty which prevents the
possible pin of the Nf3. In comparison the stem game saw} (11. Nf3 $6 Bg4 $1
12. Bxf6 gxf6 13. Nc3 ({Or else White loses the exchange} 13. h3 Bxf3 14. Qxf3
Be5) 13... Bxh2+ 14. Kh1 Be5 15. Nxd5 Qd6 16. Nf4 Bxf4 17. exf4 Qxf4 18. Bxc6
bxc6 {when Black was on top, Agzamov,G (2485)-Geller,E (2545) Yerevan 1982})
11... Bh2+ 12. Kh1 Be5 13. Qc2 Bd7 14. Nf3 $1 {[%csl Yb2,Ye5] Diagram [#] The
trade of the dark-squred bishop is huge achievement for the side which plays
against the isolated d5 pawn. This significanlty lowers the attacking
potential of the black pieces and guarantees the strong d4 outpost for the
white pieces.} Bxb2 15. Qxb2 {Kramnik got the type of position he loves most.
Slight advantage without any risk. Now the inquisition begins.} Rac8 16. Rc1 {
An accurate move. In comparison, the immediate} (16. Nc3 $6 {allows
counterplay along the c file after} Ne5 $1 17. Nxe5 (17. Bxd7 $2 Nxf3 18. gxf3
Qxd7 19. Kg2 d4 $1 {will see White's position in flames.}) 17... Qxe5 18. Bxd7
Rxc3 19. Bb5 Rxe3 $1 (19... Rfc8 $5)) 16... Qd6 17. Nc3 Ne5 ({White is also
slightly better after} 17... Ne4 18. Bxc6 Bxc6 19. Nd4 $14) 18. Be2 Nxf3 19.
Bxf3 Qe5 20. Qd2 Be6 {[%csl Rd5,Ye6][%cal Ye6d5] Diagram [#]} ({It looks as
the c6 square is better for the bishop} 20... Bc6 21. Ne2 (21. Rd1 Ne4) 21...
Ne4 22. Bxe4 (22. Qe1 Rfe8) 22... dxe4 23. Rc3 Rfd8 {with chances for
counterplay along the open file. Black can also try to lift a rook along the
sixth rank.}) 21. Nb5 Bd7 22. Qd4 {Kramnik's play against the isolated pawn is
a classical exmple of what to do in these positions. First he trades a pair of
light pieces, then the queens, thus completely immobilizing the d pawn.} (22.
Nxa7 $4 {self-traps the knight} Ra8) 22... Qxd4 23. Nxd4 a5 ({Black could have
slowed down his opponent's plan with the move} 23... h5 $5) 24. g4 $1 {This
pawn is more than annoying as it always threatens to kick the black knight
away from the isolani.} h6 ({This is what can happen if Black does not pay
respect to the white pawn} 24... Rxc1+ 25. Rxc1 Rc8 26. Rxc8+ Bxc8 27. g5 Ne4
28. Bxe4 dxe4 29. Kh2 {followed by a king march to f4 and e4.}) 25. Kg2 Rxc1
26. Rxc1 Rc8 {[%csl Gc1,Gc8] Diagram [#]} 27. Rb1 $1 {The signature of a great
master. White needs the rook to pressurize the pawn on d5 and voluntarily
gives away the open file. Please, not though that there are no entry squares
for the black rook there.} Ra8 ({It made sense to bring the king to center as
soon as possible.} 27... Kf8 $5) 28. Ne2 {Bent Larsen once said that the
isolated pawns have to be taken, not blocked. This is one of those cases.} g5 {
Stops the knight from the f4 square, but there is another one.} 29. Nc3 Be6 30.
Rd1 Rd8 31. e4 $1 {[%csl Yd5] Diagram [#] Reveals the point behind the move 27.
Rb1! The isolated pawn cannot survive.} d4 32. Kg3 (32. Nb5 d3 {complicates
matters.}) ({But White can win the pawn with} 32. Rd3 {as well.}) 32... Rc8 ({
White has to be careful not to fall in a trap after the crafty} 32... Kg7 33.
Nb5 ({The automatic} 33. Rd3 $4 {will lead to a cold shower as} dxc3 34. Rxd8 {
is not coming with a check and Black promotes after} c2) 33... d3 34. e5 $1 {
with large advantage for White.}) 33. Nb5 Nd7 34. Nxd4 {White won a pawn and
the rest should be "a matter of technique."Indeed, the former world champion
plays flawlessly until a certain point.} Ne5 35. Be2 Rc3+ 36. f3 Kg7 37. Rd2
Kf6 38. Nf5 $1 {[%csl Ye6,Gf5] Diagram [#] It seems illogical to trade the
super-knight and to leave the bishop. However, 1) This destroys Black's
defensive central set-up. 2) There are not bad bishops as even the worst
bishop can be always traded for a knight (Kasparov).} Bxf5 (38... Kg6 39. Nd6)
39. exf5 Ke7 40. Rd5 Nc6 41. Bb5 b6 42. h4 f6 43. Bxc6 {There you go!} Rxc6 44.
hxg5 hxg5 45. a4 Rc3 46. Rb5 Rc6 47. f4 $1 Rc3+ 48. Kf2 gxf4 49. Rxb6 Kf7 {
After a fantastic endgame it's time to cash in, but from this point Kramnik
seems to be missing a few chances to win.} 50. b4 ({White could also play} 50.
Rb5 Kg7 51. Rxa5 Rxb3 52. Ra8 {[%cal Ga4a5,Ga5a6,Ga6a7,Yg4g5,Rf5f6,Rf6f7,Rf7f8]
Diagram [#] with the idea to put the pawn on a7 and then play g4-g5 to create
a (winning) f-pawn:} Ra3 53. a5 Kh7 54. a6 Kg7 ({a bit more complicated is}
54... Kh6 55. a7 Ra2+ 56. Ke1 Ra1+ 57. Kd2 Ra2+ 58. Kd1 Ra1+ 59. Kc2 Kg7 60.
Kd2 Ra2+ 61. Ke1 Ra1+ 62. Kf2 Ra2+ 63. Kf3 Ra3+ 64. Kxf4) 55. a7 Ra4 56. g5 $1
fxg5 57. f6+ $1 Kf7 {and now the standard trick that White was playing for all
along:} 58. Rh8 $1 Rxa7 59. Rh7+) 50... Rc2+ 51. Kf3 Rc3+ (51... Ra2 52. b5
Rxa4 53. Rb7+ Kf8 54. Ra7 Rb4 55. Rxa5 Kg7 56. Ra7+ Kh6 57. Ra8 $1 Kg7 (57...
Rxb5 58. Rg8) 58. Rb8 {and again White will create a free f-pawn.}) 52. Kf2 $6
({The win is} 52. Kxf4 Ra3 (52... Rc4+ 53. Kf3 {I suspect that Kramnik missed
in the line} axb4 (53... Rc3+ 54. Ke2 axb4 55. Rxb4 Ra3 56. Kd2) 54. a5 Rc3+
55. Ke4 $1 Ra3 56. a6 b3 {that he does not need to trade the pawns and has the
move} 57. Kd3 $1 {with the idea Rb6-b7+ followed by a6-a7 and wins.}) 53. g5 $1
{Diagram [#]} fxg5+ 54. Kxg5 Rxa4 (54... Rg3+ 55. Kh4 Ra3 56. b5 Rxa4+ 57. Kg5)
55. Rb7+ Ke8 56. b5 Ra1 57. Ra7 Rb1 58. Rxa5 {is a theoretical win.}) 52...
Rc2+ 53. Ke1 Rc1+ 54. Kd2 f3 55. Ke3 Rc3+ 56. Kf2 axb4 57. Rxb4 Kg7 58. Kg3 $2
{After this superficial analysis the conclusion is that Kramnik only gave away
the win with this move.} (58. Rb8 $1 Rc4 (58... Ra3 59. Ra8 Kf7 60. a5 {can be
compared to the note to White's 50th move.}) 59. a5 Rxg4 60. Kxf3 Ra4 61. Rb5
Kf8 62. Ke3 Ke7 {and now} 63. Rd5 $1 {[%csl Ye7][%cal Ge3d3,Gd3c3,Gc3b3,Gb3b4,
Gb4b5,Rd1d8] Diagram [#] looks like a winning ending:} Rc4 64. Kd3 Rc1 65. Kd4
Rc6 66. Rb5 Ra6 67. Kc5) 58... Ra3 59. Rb7+ Kh6 60. Ra7 f2+ $1 {Diagram [#]}
61. Kxf2 Kg5 62. Ke2 Kxg4 63. Ra5 Kf4 64. Kd2 Ke4 65. Kc2 Kd4 66. Ra6 Rc3+ (
66... Ke5 67. Kb2 Rg3 68. Ra5+ Kd4 $11) 67. Kb2 Rc4 68. Ra5 Rb4+ 69. Ka3 Kc4 {
Diagram [#]} 70. Ra6 Rb3+ 71. Ka2 Rb4 72. Ra8 Kc5 73. Ka3 Rf4 74. Rb8 Rf1 75.
Rb5+ Kc4 76. Kb2 Rf2+ 77. Kb1 Kc3 78. a5 Kc4 79. Rb7 Rxf5 80. a6 Ra5 81. a7 Kc5
82. Rf7 Kb6 83. Kc2 {Diagram [#]} 1/2-1/2



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19.6.15

Out of Shape

Round three of the Norway Chess proved two things:
1) Being a host is not definitely not an advantage at chess. Actually, it is most certainly disadvantage in our sport.
2) Carlsen is not at his greatest chess form ever.
The world champion achieved completely won position but spoiled everything by missing a spectacular. On the other hand, one of the spectators in the tournament hall saw it at once. His name- Garry Kasparov.
A game that I liked (ChessBase 13)

[Event "Norway Chess"]
[Site "?"]
[Date "2015.06.18"]
[Round "3.3"]
[White "Carlsen, Magnus"]
[Black "Giri, Anish"]
[Result "1/2-1/2"]
[WhiteElo "2876"]
[BlackElo "2773"]
[Annotator "Bojkov, Dejan"]
[PlyCount "152"]
[EventDate "2015.??.??"]
[WhiteClock "0:29:13"]
[BlackClock "0:19:31"]

1. e4 c5 2. Nf3 d6 {A small surprise. Giri usually opts for 2...e6 of lately.}
3. Bb5+ {Diagram [#] The Moscow line has been used by the world champion
before, but it is curious to know what did the Dutchman prepare against the
main lines?} Nd7 4. c3 Ngf6 5. Qe2 a6 6. Ba4 b5 7. Bc2 e6 8. d4 Bb7 9. O-O Be7
10. Re1 ({Another option is} 10. a4 O-O 11. e5 $5 dxe5 12. dxe5 Bxf3 13. gxf3
Nd5 14. f4 {Svidler,P (2732)-Grischuk,A (2797) Baku 2014}) 10... O-O 11. Nbd2
cxd4 12. cxd4 Rc8 $146 {Diagram [#] A novelty. Giri decided to occupy the open
file with his "a" rook. Previously Black had done this only with his f rook-} (
12... Qc7 13. Nf1 Rfc8 14. Bd3 b4 15. Ng3 a5 {Indeed, the rook is useful on
the a file, enabling Black a chance to trade the light-squared bishop via the
a6 square, Rasik,V (2437)-Laznicka,V (2667) Czechia 2015}) 13. Nf1 {White
finishes the development and looks for a good moment to advance his central
pawns. This will open the road of his pieces towards the black king.} Re8 14.
Ng3 Bf8 15. Be3 (15. a4 $5 {is interesting in order to weaken the black
queenside pawns and make use of the fact that the rook is not on a8.}) 15...
Rc7 $6 {[%csl Ra8,Re4][%cal Gd8a8,Ye8c8,Rb7e4,Ra1a8] Diagram [#] Giri decided
to regroup in a hedgehog way (Qd8-a8, followed by Re8-c8) but later realized
that this is simply not good.} (15... Nb6 {instead would be about equal.}) 16.
Bd3 {A typical Ruy Lopez idea, which prepares the a2-a4 advance.} (16. Rad1 Qa8
17. Bc1 Rec8 18. Bd3 {was suggested by Black at the press-conference as good
for his opponent. But there is no reason to move the rook away from the "a"
file.}) (16. a4 {at once was again makes sense} b4 17. a5 Qa8 18. Rec1 Rec8 ({
The point is that the e4 pawn is untouchable} 18... Nxe4 $2 19. Bxe4 Rxc1+ 20.
Bxc1 $18) 19. Bd3 Rxc1+ 20. Bxc1 $14) 16... e5 {Now the pawn structure
transforms into a Ruy Lopez one, in a very favourable version for White. The
black bishop is misplaced on b7.} ({Giri disliked} 16... Qa8 17. Bd2 {and
indeed, what is the queen doing on a8 after} Rec8 18. a4 $1) 17. d5 $14 Nc5 18.
Bc2 b4 $6 {[%csl Ya5,Yb4,Yb5,Yc4] Diagram [#] This makes things worse. Giri
wanted to open up the bishop with a6-a5 and Bb7-a6 but gave too many squares
in the process.} 19. a3 ({White also had} 19. Nd2 {with the deep idea} a5 20.
Bxc5 $5 {a move that a GM will easily miss as we do not like spending a bishop
for a knight. However it works concretely as the a5 pawn hangs after} Rxc5 21.
Ba4 Re7 22. Nb3 Rc8 23. Nf5 Rec7 24. Nxa5 $16) 19... b3 {Now this pawn is
doomed. However} (19... bxa3 {is even worse due to} 20. b4 $1 Ncd7 21. Bd3 {
and next White will win both the pawns along the "a" file.}) 20. Bxc5 Rxc5 21.
Bxb3 Qb6 {Instead Giri suggested as an improved version the line} (21... Qc7 {
in order to prevent the bishop from getting on a better position and to
control the c4 pawn. After} 22. Nd2 g6 23. Ngf1 Bh6 24. Ne3 Rc8 {"Black is
simply much worse, which means that I am completely lost in the game."(Giri)})
22. Bc4 Rec8 23. Bd3 {Diagram [#] Carlsen won a pawn and the rest should be "a
matter of technique". At first everything goes smoothly for him.} g6 24. Nf1 $1
{Since the knight is limited by the pawn it finds a better working place.} Bh6
25. Ne3 a5 26. b4 $1 {Naturally White does not want to get blocked after} (26.
Nd2 a4) 26... axb4 27. axb4 R5c7 {Giri thought it was better to sacrifice the
queen with} (27... Rc3 $5 28. Nc4 Qxb4 29. Reb1 ({Also possible is} 29. Rab1
R8xc4 30. Bxc4 Qxc4 31. Rxb7) 29... R3xc4 {Most likely the worl champion would
have declined the sacrifice and taken the exchange with} 30. Bxc4 $1 ({Black
has serious drawing chances after} 30. Rxb4 Rxb4) 30... Qxc4 31. Qxc4 Rxc4 32.
Rxb7 Nxe4 33. g3 Rc1+ 34. Rxc1 Bxc1 {and White should win later.}) 28. b5 Qc5
29. h3 {There is no need to hurry. Black was hoping for a trick} (29. Nc4 $2 {
[%csl Yc4] Diagram [#]} Bxd5 $1 30. exd5 e4 31. Bxe4 Qxc4 32. Qxc4 Rxc4 33. Bd3
Rb4 {with serious drawing chances.}) 29... Nh5 30. Qb2 Qb6 31. Qb4 Bxe3 ({
Black also calculated the desperate} 31... Rc3 32. Nc4 R8xc4 $5 33. Bxc4 Rxf3
34. gxf3 Qd8 {but abandoned it on the account of} 35. f4 $1 ({Instead} 35. Bf1
Bf4 {keeps a lot of tricks in the position.})) 32. Rxe3 Rc3 33. Rae1 {[%cal
Yd3f1,Re1e3] Diagram [#] Overprotecs the rook on e3 and prepares Bd3-f1.} f5 {
The last desperate try.} 34. exf5 Nf4 35. Be4 R3c5 36. fxg6 hxg6 {Carlsen won
another pawn and weakened the enemy king. The end is close and...miracles
start to happen.} 37. Bxg6 {Was this needed? If Carlsen had won, we would have
praised him for the stylish finish. Now we can criticise him for the
inpractical approach.} (37. Nh4 {wins prosaically after} Rxb5 38. Qa4 Rb4 39.
Qd7 Qd8 40. Qg4) 37... Rxb5 38. Qe4 $2 {Misses the brilliancy. Instead} (38.
Bf7+ $3 {would have made the Norwegians happy} Kxf7 ({Or else the checkmate
will be for free after} 38... Kf8 39. Qe4) 39. Qe4 {[%csl Yf7][%cal Ge4h7,
Gf3g5] Diagram [#] The threat is Qe4-h7 followed by Nf3-g5 and checkmate.
There is no escape of it as the lines prove:} Kg7 (39... Rh8 40. Qf5+ Kg7 (
40... Ke7 41. Nxe5 $1 {is mate} ({although} 41. Qxf4 {wins easily as well.}))
41. Ng5 Qc7 42. Ne6+ Nxe6 43. Rg3+ Kh6 44. Qg6#) (39... Nxd5 40. Qh7+ Kf6 41.
Nxe5 $1 dxe5 42. Rxe5 {with the unstoppable threat Re5-f5.}) (39... Bxd5 40.
Qf5+ Ke7 41. Qxc8 {wins tons of material.}) (39... Ng6 40. Qf5+ Kg7 41. Nh4 $1
Nxh4 42. Rg3+ Kh6 43. Qf6+ Kh7 44. Qxh4#) 40. Ng5 Kh6 41. Qh7+ Kxg5 42. Rg3+
Kf6 43. Qg7+ Kf5 44. Rg5#) 38... Rf8 39. Nxe5 $6 {And this misses the
remaining advantage.} ({White is at least up a pawn after} 39. Nh4 Bxd5 40. Qa4
{as} Bxg2 $2 {is bad due to} 41. Bd3 $1 ({Or even} 41. Rg3 $1)) 39... dxe5 40.
Rg3 Rxd5 {[%csl Yg8] Diagram [#] White has plenty of discovered checks, the
black kingside is a wreck and it is a draw...} 41. Qb1 {Carlsen uses his last
chance. Two forced lines lead to instant draw} (41. Rb1 Rd1+ 42. Kh2 Rxb1 43.
Bf5+ Kh8 44. Qxe5+ Qf6 45. Qc7 Rf7 46. Qb8+ Rf8 $11) (41. Kh2 Kh8 42. Rb1 Rb5
43. Qxe5+ Rxe5 44. Rxb6 $11) 41... Qxb1 42. Bxb1+ Kh8 43. Be4 Rd7 ({Worse is}
43... Rd2 44. Bxb7 Ne2+ 45. Rxe2 Rxe2 46. f3 Rg8 47. Rxg8+ Kxg8 {followed by
h3-h4, Kg1-h2-h3 and g3-g4 (Giri)}) ({And} 43... Rd1 44. Rxd1 Bxe4 45. Kh2 Bxg2
46. Rxg2 Nxg2 47. Kxg2 {(Giri) albeit drawish leaves Black suffering.}) 44.
Bxb7 Rxb7 45. Rxe5 {Diagram [#] Objectively, the position is equal but it is
much easier to play it as White. He risks nothing while Black has to be
careful what to trade and how to arrange his forces.} Rh7 46. Re4 Rhf7 47. Kh2
Kh7 48. Rf3 Kg6 49. h4 Nh5 50. Rxf7 Rxf7 51. Re2 Nf4 52. Rd2 Nh5 53. g3 Nf6 54.
Kg2 Rd7 55. Ra2 Rd5 56. Ra4 Re5 57. g4 Re4 58. Rxe4 Nxe4 {[%cal Ra5h5] Diagram
[#] Giri was happy to swap off the rooks as he felt that this should be a draw.
Indeed, the theory of this engame states that it is a draw as long as the
passers do not cross the equator of the board. If they (all of them!) reach
the fifth rank, then it is a win.} 59. Kf3 Nd6 60. Kf4 Nf7 61. Ke4 Kf6 62. f4
Nd6+ 63. Kd5 Nb5 64. h5 Nc3+ ({An easier fortress is} 64... Nc7+ 65. Ke4 Ne6 {
Since none of the white pawns can move} 66. Ke3 (66. f5 Ng5+ $11 {is a nice
blockade.}) (66. g5+ Nxg5+ {is an instant draw.}) 66... Nf8 {and White can
make no progress.}) 65. Kd4 Nb5+ 66. Kc4 Nd6+ 67. Kc5 Ke6 {[%csl Yg4,Yh5][%cal
Gd6f7,Gf7h6] Diagram [#] Giri found a good defensive set up.} (67... Nf7 68.
Kd5 Nd8 $11) 68. Kc6 Nf7 69. Kc7 Nh6 $1 {Now the pawns are blocked and Anish
Giri can keep his positive score against the world champion.} 70. g5 Nf7 71. g6
Nh6 72. Kd8 Kf5 73. Ke7 Kxf4 74. Kf8 Kg5 75. g7 Kxh5 76. g8=Q Nxg8 {Diagram [#]
} 1/2-1/2



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