2013 UTDallas GM Inventational Chess Championships

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(1) Sadorra,Julio - Kosintseva,Nadya [A30]
2013 Fall GM Invitational, 23.11.2013
[JCS]

1.Nf3 c5 2.c4 the English Opening 2...b6 3.g3 Bb7 4.Bg2 g6 5.0-0 Bg7 this is known as the Double Fianchetto defence. 6.Nc3 Nh6 [more common is 6...Nf6 an example of how the game could develop is 7.d4 cxd4 8.Qxd4 d6 9.b3 Nbd7 10.Bb2 0-0 11.Rfd1 Ne4 12.Qe3 Nxc3 13.Bxc3 Bxc3 14.Qxc3 Qc7 15.Qe3 Nf6 16.Rd4 h5 17.Qh6 Qc5 18.Rad1 Rad8 19.Ng5 e5 20.Bxb7 exd4 21.Bd5 1-0 Eljanov,P (2702)-Karjakin,S (2772)/Tromso NOR 2013] 7.d4 cxd4 8.Bxh6! Bxh6 9.Qxd4 f6 first played in 2007 [if 9...0-0 I was intending to play 10.Qh4 Kg7 11.Rad1 (11.Rfd1 e6 12.Qd4+ Kg8 13.Qd6! Bg7 14.Rac1 and White is better due to his better development and space advantage.) 11...Nc6 12.Nd4 is unpleasant to meet (12.g4 f6 ) 12...Na5 (12...Rc8 13.Nxc6 Bxc6 14.Bxc6 Rxc6 15.Qd4+ Kg8 16.Qxd7 wins a pawn) 13.Bxb7 Nxb7 14.Nc6 and this pin tactic wins a pawn 14...Qc7 15.Nxe7+/- ] 10.Rad1 Bg7 11.Qe3! found after a long thought otb. [11.Bh3! is also possible, but the move in the game is stronger as it builds up more pressure on Black uncastled king and creates more threats.] 11...Nc6 12.Nd4 [also a good plan is the simple piling of rooks on the d-file. 12.Rd2 Na5 (12...0-0 13.Rdd1 d6 14.Nd4 Qd7 15.Bd5+ Kh8 16.Nxc6 Bxc6 17.Bxc6 Qxc6 18.Qxe7 Qxc4 19.Rxd6+- ) 13.b3 0-0 14.Rdd1 d6 15.b4! Nc6 16.Nd4+- ] 12...Nxd4 13.Bxb7 Rb8 14.Be4! while my opponent was thinking, I realized that this candidate made the best sense because my advantage simply increases in an opposite colored B situation. 14...Ne6 [14...e5 15.Bxg6+ Kf8 16.Be4 f5 17.f4! remember seeing this detail in the end (17.Bxf5 Nxf5 18.Qf3 Qf6 19.Rxd7! I felt I should be better too, but wasn't sure how much but MF loves it! (19.Ne4 Qf7 ) 19...Nd4 ) ] 15.Bc6 Nf8 16.Rxd7! Nxd7 17.Rd1 Rc8 [17...0-0 18.Rxd7 Qe8 19.Nd5 Kh8 (19...Rd8 20.Rc7 Qf7 21.Rxe7 ; 19...Rc8 20.Nxe7+ Kh8 21.Rc7 (21.Nxc8 Qxc8 22.Qe7 Rg8 23.Bd5 ) ) 20.Nc7 Qc8 21.Qxe7 Rg8 22.Bd5 ] 18.Bxd7+ [originally I planned 18.Qe6 Rxc6 19.Qxc6 but realized that it's a mistake after concrete analysis 19...f5! 20.Nb5 Be5 and it's time to look for a draw.] 18...Qxd7 19.Rxd7 Kxd7 20.Nb5 good enough [20.Qd4+ first considered this, but Black gets a lil bit of coordination 20...Ke8 21.Nb5 (21.Qe4 Rd8 (21...Kf7 22.Qd5+ ) 22.Nd5 e5 23.Qc2!!+- ) 21...Rd8 22.Qe4 (22.Qe3! MF) 22...Kf7 ] 20...a6 21.Qd4+ I didn't want to give her an option [21.Na7 Rb8 22.Qd4+ Kc7 (22...Ke8 23.Nc6+- ) 23.Qe4 Rb7 24.Qxe7+ Kb8 here I stopped calculating and concluded that Black is surviving but extending it shows that I'm almost winning! 25.Nc6+ Ka8 26.Qa3 a5 27.c5+- ] 21...Ke8 22.Na7 Rd8 23.Qxb6 Kf7 24.c5 Rb8 25.Qxa6 Rxb2 26.Qc4+ e6 27.c6 Bh6 28.Kg2! the last prophylactic finesse, after which she resigned. [28.c7 Rb1+ 29.Kg2 Rc1 and there's still work to be done.] if she played 28...Rb1 I can meet it with 29.Qd3 Rc1 30.Qd7++- promoting my c-pawn into a queen and winning more material. 1-0



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