Saturday, April 11, 2015

ChessBeta Test 4.Bg5 Poehlmann

The Blackmar-Diemer Gambit I played vs ChessBeta was a BDG Poehlmann 3...f5 that "I pin the imaginary horse" with 4.Bg5, as David Gedult used to say. This same variation can be reached via a relatively rare Dutch Defence after 1.d4 f5 2.Nc3 d5 3.e4 dxe4. I treat it as a Blackmar-Diemer Gambit Avoided line. White's chances are equal in theory, but not in practice when Black is rated 3266.

A quick examination of my games finds that I have won about 50 games vs opponents rated over 3000 and just about all were on time (when the silicon monster glitched) or when it was forfeited by the Internet Chess Club when the computer disconnected. Most of those games were unrated, because strong computers rarely play rated games if they cannot gain at least one rating point from crushing you. Here I test Gedult's 4.Bg5 line.

Sawyer (2391) - ChessBeta (3266), ICC 3 1 u Internet Chess Club, 15.03.2002 begins 1.d4 d5 2.e4 dxe4 3.Nc3 f5 4.Bg5 g6 5.Bc4 Bg7 6.Nge2 Nc6 7.d5 Na5 8.Bb3 [8.Bb5+ Bd7 9.Nd4 c6 10.dxc6 Nxc6-/+] 8...Nxb3 9.axb3 a6 10.Qd2!? [10.0-0 h6 11.Be3 e5 12.dxe6 Qxd1 13.Raxd1=] 10...h6 11.Be3 e5 [This position resembles a line in the BDG Lemberger 4.Nge2 variation.] 12.dxe6 [12.d6!? Be6 13.dxc7 Qxd2+ 14.Kxd2 Rc8 15.Bb6 Nf6=/+] 12...Qxd2+ 13.Bxd2 Bxe6 14.Nf4 Bf7 15.0-0-0 0-0-0 16.h4 Nf6 17.g3 Rd7 18.Be3 Rhd8 19.Rxd7 Rxd7 20.Rd1 Ng4 21.Rxd7 Kxd7 22.Nfd5 Kd6 23.Bf4+ Kc6 24.Nb4+ Kd7 25.Be3 Nxe3 26.fxe3 Be5 27.Ne2 a5 28.Na2 a4 29.Nac3 axb3 30.cxb3 Bxb3 31.Kd2 c5 32.Nf4 Bf7 33.Nce2? [If 33.Kc2 Kc6-+] 33...Bxb2 White resigns 0-1

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