Augalv: Karjakin Sergey - Radjabov Teimour, Grand Prix Baku, 11th Round. 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 Bg5 12.Nc2 Rb8 13.a4 bxa4 14.Ncb4 Nxb4 15.Nxb4 Bd7 16.Bxa6 Qa5 17.Qxd6 Rb6 18.Qd3 Be7 19.Nd5 Rxb2 20.0-0 Qc5 ( diagram )  click for larger viewEverything according to theory.Most common move here is 21.Rab1. 21.Rad1!? ( diagram )
 click for larger viewThis move is not new, it took place in a correspodence game. 21..a3
Let's check other moves.21..Be6!? is interesting 22.Bb5+ ( 22.c4?! Bxd5 23.exd5 0-0 24.d6 Bf6 25.d7 Rd8 is a total mess ) Rxb5 23.Qxb5+ Qxb5 24.Nc7+ Kf8 25.Nb5 Bc4 26.Na7!? with some tiny edge for White.21..Bg4 22.Rb1 is going into already mentioned corr game which White won.22..Bc6!? is a untested move. 22.c4!? ( diagram )
 click for larger view22.Nf6+?! gxf6 23.Qxd7+ Kf8 goes nowhere for White.What I find interesting is 22.Nxe7 line.22..Qxe7 23.Qd5 Rb8 24.Rd2.Idea is to play Ra1-Rda2 and to conquer dangerous a3 pawn. 22..Bg4
Other moves you ask? Well choice is not so wide, 22..Bg5 and 22..Bd6.If 22..Bg5 23.Qc3! ( another good side of 22.c4!? becides taking control over b5 square, but not 23.Bb5? Bxb5 24.cxb5 0-0.Black is better ) f6 24.Ra1 and a3 will fall.24..Bh4! White answer with 25.Ne3 ( 25.g3 is a total mess ) and pawn goes off the board no matter what Black do.
22..Bd6!? 23.Qg3!? is unclear.Here 23.Nc3 Ke7 24.Nd5+ is a repetition while 23.Bb5? is a error again due to 23..Bxb5 24.cxb5 0-0. 23.Bb5+ Rxb5
Going into draw, 23..Kf8 is more fighting move.24.Nxe7 Kxe7 25.h5 Be6 26.Qg3 with some motives like Rd5 with exchange sacrifice, but still Black can with 25..Rxb5 enter in total equality like in the game. 24.cxb5 Bxd1 25.Rxd1 0-0
At last!
26.b6 Bd6 27.h4 h6 ( diagram )
 click for larger view28.Nf6+ gxf6 29.Qxd6 Qxd6 30.Rxd6 a2
White b-pawn for a Black a-pawn, fair trade right?
31.Rd1 Rb8 32.Ra1 Rxb6 33.Rxa2 Rb4 34.f3 Rc4 35.Kf2 Kg7 36.Kg3 Rb4 37.Ra6 Rb2 38.Rc6 ( diagram )  click for larger view38..Ra2 39.Rd6 Rb2 40.Rc6 Ra2 41.Rd6 Rb2 draw
Extracted from blog about Sergey Karjakin.
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