A Perfect Attack

Michael Adams's first win at the Tata Steel in round ten was a great achievement especially when his opponent was the ultra-solid Sergey Karjakin:
A game that I liked (ChessBase 13)

[Event "Tata Steel Chess - Masters"]
[Site "?"]
[Date "2016.01.27"]
[Round "10.5"]
[White "Karjakin, Sergey"]
[Black "Adams, Michael"]
[Result "0-1"]
[WhiteElo "2769"]
[BlackElo "2744"]
[Annotator "Bojkov, Dejan"]
[PlyCount "62"]
[EventDate "2016.??.??"]
[WhiteClock "0:00:59"]
[BlackClock "0:11:57"]

1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 c5 5. c3 {Diagram [#] The London system is
becoming more and more popular, even at a top level. White is playing the Slav
defense with an extra tempo.} Nc6 6. Nbd2 Bd6 7. Bg3 O-O 8. Bd3 b6 9. Ne5 {
This is one of the main ideas of the whole line. White wants to attack on the
kingside and therefore plays in a Stonewall way.} Bb7 10. f4 {The bishop on g3
is also seemingly well placed, ready to go to h4. It seems as White had won
some tempos on the development of that piece, but if we count carefully, we
shall see that it is all the same. In the Stonewall the bishop goes to h4 via
d2-e1-h4. Here Karjakin had lost the time while maneuvering Bf4-g3-h4.} Ne7 {
A nice defensive maneuver.} 11. Qf3 ({Funnily, Karjakin has some experience
with this line, but as Black:} 11. Qc2 c4 12. Be2 Nf5 13. Bf2 Be7 14. Ng4 Nxg4
15. Bxg4 Nd6 16. f5 exf5 17. Bxf5 Nxf5 18. Qxf5 Qc8 {Andreikin,D (2720)
-Karjakin,S (2762) Baku 2015}) (11. Bh4 Ne4 {is good for Black.}) 11... Nf5 12.
Bf2 Be7 13. g4 Nd6 {Petrosian loved to place his knights this same way against
the Stinewall and to crack jokes about the awesomeness of the Dutch defense.}
14. g5 Nfe4 15. O-O-O ({Perhaps it was better to postpone the castling for one
more move} 15. Qh3) 15... c4 $146 {[%cal Gc5c4,Gb6b5,Gb5b4,Ga7a5] Diagram [#]
A novelty in comparison to the email game:} ({Sodomski,A (2006)-Fedorov,S
(2399) ICCF email 2011, which saw} 15... cxd4 16. exd4 b5 17. h4 b4 18. cxb4 a5
{which also looks quite promising for Black.}) 16. Bc2 (16. Bxe4 $6 dxe4 17.
Qg2 b5 {[%cal Gb7d5,Ga7a5,Gb5b4] Diagram [#] followed by Bb7-d5 and advance of
the "a" and "b" pawns will lead to a dream position for the second player.})
16... b5 {Both sides attack on the opposite flanks and the Big question is-
"Who is opening the king first." Since the white pawn chain is somewhat more
exposed, Adams does it.} 17. Qh3 b4 18. Nxe4 ({Naturally, Karjakin does not
want to open any files with} 18. cxb4 a5 $1 {Diagram [#]} (18... c3 19. bxc3
Qc7 (19... Nxc3 20. Qxh7#)) 19. b5 c3 20. bxc3 Nxb5 {when Black is definitely
happy.}) 18... dxe4 19. Be1 Bd5 {Adams prepares b4-b3.} ({The other way to
attack is} 19... bxc3 20. Bxc3) 20. Rg1 $6 {Diagram [#] Which Karjakin ignores.
} ({In case of} 20. cxb4 a5 $1 21. bxa5 {The English GM was probably planning
the rich exchange sacrifice} Rxa5 $1 {when} 22. Bxa5 $2 {might lead to quick
mate after} ({But White had definitely more chances defending the position
after} 22. a3 {than the one in the game. On a second thought} Nb5 $1 {Looks
really scary for White.}) 22... Qxa5 23. Kb1 (23. Rd2 c3 24. bxc3 Qxc3 25. Kd1
Rb8 $19) 23... c3 {[%csl Rb1] Diagram [#] and the white king has no defenders.}
) 20... b3 21. axb3 (21. Bb1 {seems more stubborn although Black's attacking
chances are huge after} bxa2 22. Bxa2 a5 ({Or} 22... Rb8)) 21... cxb3 22. Bb1
f5 $1 {[%csl Rc1][%cal Gf8f1] Diagram [#] A very nice idea. Adams offers his
opponent a choice of two eveils. To close the kingside and basically to resign
on the other one. Or...} 23. gxf6 Bxf6 {To open the "f" file for the black
rook and activate his bishop.} 24. Rg4 Nf5 {With the intention to improve
calmly with a7-a5-a4-a3 or Ra8-c8 and Qd8-a5.} 25. Kd2 {White tries to escape
but the poor king gets surrounded.} Qa5 26. Ke2 Bxe5 27. dxe5 ({There is no
way back as the "f" file had been opened-} 27. fxe5 Bc4+ 28. Kd2 (28. Kf2 Nxd4+
) 28... Qa1 {[%csl Rd2][%cal Ra1b2]}) 27... Rad8 28. Kf2 {Or:} (28. Bd2 Bc4+
29. Ke1 Rxd2 $1 {[%csl Ye1] Diagram [#] and White's position falls apart.} 30.
Kxd2 (30. Rxd2 Qa1 31. Rd1 Qxb2) 30... Rd8+ 31. Kc1 Rxd1+ 32. Kxd1 Qa1 33. Kc1
Bd3) 28... Qa1 {It is over.} 29. Bd2 Bc4 30. Qh5 Qxb2 31. Ke1 Rxd2 $1 {[%csl
Re1][%cal Rb2c1,Rc1d2] Diagram [#]} (31... Rxd2 32. Rxd2 Qc1+ 33. Kf2 Qf1#) 0-1


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