Wednesday, August 27, 2014

Corey Acor Wins in London System Kings Indian

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

Copyright 2014 Tim Sawyer. Click here for my HOME PAGE.

Tuesday, August 26, 2014

Four Move Rook Journey in BDG Vienna

PII233Crafty would let me play the Blackmar-Diemer Gambit in blitz games on the Internet Chess Club back in the late 1990s. Generally, my highest ratings come when I play the same few opening variations all the time, but I do not always feel like doing that. In 1998, I did. I played the BDG daily and my rating went way up.

This BDG Vienna saw us meet the BDG Declined with 4.f3 Bf5 5.fxe4 (instead of 5.g4) 5...Bxe4 (more common is 5...Nxe4) 6.Nxe4 Nxe4 7.Bd3 e6! (humans often miss this but computers often find it). My response was to play 8.Nf3 and sacrifice the Exchange on the queenside. The hope is to work up a kingside attack. Notable in this game is the four move rook journey from 13.0-0, 14.Rb1, and 15.Rb5 to 16.Rh5. Alas, I missed the drawing continuation 18.Ng5! which could lead to a repetition of moves.

Sawyer (2420) - PII233Crafty (2784), ICC 5 0 Internet Chess Club, 04.10.1998 begins 1.d4 Nf6 2.Nc3 d5 3.e4 dxe4 4.f3 Bf5 5.fxe4 Bxe4 6.Nxe4 Nxe4 7.Bd3 e6! [The best move which threatens ...Qh4+!, however Black more often retreats the knight with 7...Nf6] 8.Nf3 [8.Ne2 solidifies c3, but it does not support a quick kingside attack.] 8...Bb4+ 9.c3 Nxc3 10.bxc3 Bxc3+ 11.Bd2 Bxa1 12.Qxa1 Nc6 [If Black chooses to castle queenside with 12...Qd7 13.0-0 (13.Ne5!?=) 13...Nc6 14.Bc3 0-0-0 15.Qb2= White has open lines and some attacking chances.] 13.0-0 0-0 14.Rb1 Rb8 15.Rb5 Qd6 16.Rh5 g6 17.Rh6 e5 18.Be3? [White could reach a draw after 18.Ng5! Qxd4+ 19.Qxd4 exd4 20.Nxh7 Rfd8 21.Rh3 Ne5 22.Bg5 Nxd3 23.Nf6+ Kg7 24.Rh7+ Kf8 25.Nd7+ Kg8 26.Nf6+ Kf8 27.Nd7+ repeating moves.] 18...Qa3 19.Qd1 e4 20.Ng5 Qxd3 21.Qxd3 exd3 22.Nxh7 Rfd8 23.Nf6+ Kg7 24.Bg5 Rxd4 25.Rh7+ Kf8 26.Rh8+ Ke7 27.Nd5+ Kd7 28.Nf6+ Ke6 29.Rxb8 Nxb8 White resigns 0-1

Copyright 2014 Tim Sawyer. Click here for my HOME PAGE.

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