Wednesday, August 27, 2014

Corey Acor Wins London System

Corey Acor was a teenage USCF Master whom I played three times in tournaments. Our first meeting was a London System in the Florida State Championship the previous year. In both games, Corey Acor played the King's Indian Defence set-up. In all our games, I played well and then missed a key move in a critical position. Acor avoids drawish lines and plays for a win. Like many chess masters, he complicates the position but keeps it flexible enough to allow for many critical options. Acor has a preference for positions that make use of his tactical skills and his ability to play quickly.

With a win and draw after two rounds in this event, I was tempted to play 2.f3 and head for a Blackmar-Diemer Gambit, but he is better at tactics than I am. In blitz play, I did get a draw with a BDG Euwe vs Acor in 2009, but normally Corey Acor outplayed me in every game. I figured at tournament speed that I had a better chance in an endgame, but Corey Acor keeps the middlegame going for a long time.

Sawyer (1946) - Acor (2283), Southern Open (3), 28.07.2007 begins 1.d4 Nf6 2.Nf3 d6! 3.c3 [Rather slow which shows the lack of confidence in my opening preparation for this event. The first time we played, I continued directly to the London with 3.Bf4!? which in hindsight would have been good to do again.] 3...g6 4.Bf4 Bg7 5.h3 [To retreat the bishop if necessary.] 5...b6 6.e3 Bb7 7.Be2 Nbd7 8.0-0 Nd5 9.Nbd2 [I tried to set-up and fortress that Black would have a hard time breaking through. This proves futile. It would be better to keep the bishop with 9.Bh2=] 9...Nxf4 10.exf4 e6 11.Re1 Qf6 12.g3 0-0 13.Bf1 Rfe8 14.Bg2 Rad8 15.Qa4 a5 16.Rad1 Ba8 17.a3 Qe7 18.Qc2 [Worth a try is 18.Nh2=] 18...Nf6 19.Qa4 h6 20.Qc2 Rb8 21.Qa4 Rec8 22.Rc1 c5 23.Qd1 Bc6 24.Qe2 Qb7 25.Nh4 cxd4 26.cxd4 Nd5 27.Nhf3? [Now things go bad. Very promising was 27.Nxg6! fxg6 28.Qxe6+ Kh7 29.Rxc6 Qxc6 30.Bxd5=] 27...Qd7 28.Qd3 Bb5 29.Qb1 f5 30.Rxc8+ Rxc8 31.Rc1 Kf7 32.h4 Bd3 33.Qa1 Rc6 34.Rxc6 Qxc6 35.Qd1 Qb5 36.Qa1?!  [36.Qc1! Be2=/+] 36...Qc6 37.Qd1 Ba6 38.Bf1 Bxf1 39.Qxf1 b5 40.Kh2 Nf6 41.Qd3 Ne4 42.Kg2 Qd5 43.Qb3? [This loses, but White might be able to survive with 43.Qc2 or 43.Nf1] 43...Nxd2 44.Qxd5 exd5 45.Nxd2 Bxd4 46.b3 a4 0-1

You may also like: King Pawn (1.e4 e5) and Sicilian (1.e4 c5)
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