Friday, February 17, 2017

Chess Calculation BDG Clauser

Blackmar-Diemer Gambit readers benefited from Jack Clauser. He proofread my first Blackmar-Diemer Gambit Keybook written 1989-1991. It was published 25 years ago in February 1992. In 2016 Jack Clauser graciously returned to proofread first drafts of my Blackmar-Diemer Theory books 3 & 4. It was painstaking work to play over each line. Chess authors don't sell millions of books. Popular non-fiction books are about how to make money or how to find love. It's hard to love chess and make money. I gratefully appreciate those who buy my books or leave kind positive reviews for my efforts.

I focus my author research on lines that I know BDG players most often play. Clauser examined my chosen computer analysis with human eyes. Jack questioned lines with comments like "why not take that pawn?" or "I'd move the knight here." I included many of his suggestions in my books along with my chess engines evaluations. Clauser and I played several games in our BDG early days. As Black, Jack tried the 4.Nxe4 Nc6 line of the Lemberger Counter Gambit. I was in trouble by move 20 and lost by move 25.

Sawyer - Clauser, corr 1988 begins 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Nxe4 Nc6 [Black may develop the other knight with 4...Nf6 5.Nxf6+ Qxf6 (5...gxf6 6.Nf3=) 6.Be3 (Or 6.Nf3=) 6...Bd6 7.Nf3=] 5.d5 Nd4 6.c3 Bf5 7.cxd4 [White could repeat moves with 7.Qa4+ Bd7 8.Qd1 Bf5=; or try 7.f3 Bxe4 8.fxe4 Qh4+ 9.Kd2 Qf2+ 10.Ne2=] 7...Bxe4 8.Qa4+ c6 9.dxc6 Bxc6 10.Bb5 Ne7 11.dxe5 Qd5 12.Bxc6+ Nxc6 13.Nf3 Bb4+ 14.Bd2 [14.Kf1 0-0 15.Kg1 Bc5 16.Bf4=] 14...Bxd2+ 15.Nxd2 Qxg2 16.0-0-0 Qxf2 17.Ne4 Qe3+ 18.Kb1 0-0 19.Rhe1 Qh6 20.Rd6 [20.Nd6 Rad8=/+] 20...Qxh2 21.Nf6+? [21.e6 fxe6-/+] 21...gxf6 22.exf6 Kh8 23.Qe4 Qg3 24.Ka1 Qg6 25.Qh4 Rad8 0-1


You may also like: King Pawn (1.e4 e5) and Queen Pawn (1.d4 d5)
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