Sunday, August 3, 2014

Sawyer Beats Purser Blackmar-Diemer

30 years ago I was thinking about giving up chess when I found Tom Purser's magazine entitled BDG World. I subscribed and the Blackmar-Diemer Gambit changed my chess career for good. I tried the opening in my own games with success. When Purser lived in Germany, he spent a day with the famous E.J. Diemer. I never met Purser personally but I emailed him many times. Purser got me interested in Internet Chess Club. Both of us lived in the same Tennessee town 15 years apart and worked for the same business.

About 20 years ago Tom Purser and I met in four correspondence chess games in APCT. The first two were in a Blackmar-Diemer Gambit thematic event. Tom Purser defeated me with the BDG Bogoljubow as Black in the first game. I played the BDG Teichmann as Black here. It is funny that both of us misplayed the White pieces and lost.

Below he played the 8.g4 Seidel-Hall Attack. My philosophy is to grab the material and dare my opponent to beat me. I got away with this one when White missed the winning move 15.Rxd7! We played two more games which I plan to post this month.

Purser (2097) - Sawyer (1992), corr APCT BDG-2 (3.1), 05.1995 begins 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.g4 Qxd4 [8...e6] 9.Be3 Qd8!? [9...Qd6] 10.Rd1 [The main line here is 10.g5 Nd5 11.0-0-0 e6 12.Nxd5 cxd5 13.Bb5+ Nc6 14.c4=] 10...Qa5 [10...Qc7] 11.Bc4 [Or 11.g5= immediately.] 11...e6 12.g5 Nfd7 13.0-0 Ne5 14.Qf4 Nbd7? [14...Bb4 15.Ne4=] 15.Ne4 [Correct is the brilliant continuation 15.Rxd7! Kxd7 16.Nb5!+-] 15...0-0-0 16.Be2 Be7 17.b4 [White is hoping to open lines to the Black king, but nothing works at this point. 17.Nd6+ Bxd6 18.Rxd6 h6-+] 17...Bxb4 18.Bd2 Bxd2 19.Nd6+ Kb8 20.Rxd2 Rhf8 21.Rfd1 Ng6 22.Nxb7+ Nxf4 23.Nxa5 Nxe2+ 24.Rxe2 Kc7 0-1

You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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  1. 15. Rxd7!! Kxd7 16. Nb5!! is an astonishing combo. Some sample lines from Stockfish from here are 16... cb 17. Qxe5 Be7 18. Bxb5 Kd8 19. Rd1 Kc8 20. Bd7 and 21. Qxa5 ++-; 16... Be7 17. Qxe5 intending Rd1, Nd6 and Qxa5, for example and 16... Nxc4! 17. Qxf7 and the coming Rd1 is gonna be lethal.

    1. Yes, the combinations that appear frequently in the BDG are amazing but can be hard to see for either side during an actual game. We thought 20 years ago that chess engines like Stockfish might simply refute the gambit, but often what they do is find incredible resources!


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