Wednesday, September 21, 2016

Pseudo Trompowsky vs BDG

I tried a Pseudo Trompowsky vs a guest on the Internet Chess Club. One does not know how strong such opponents are unless they tell you. That has happened to me with some masters. Usually I do not know if a guest would be rated 1300 or 2300 until I play them. If they keep pushing me around, they’re good.

This game turned out to be full of tactics. I discovered how much trouble one can both cause and get into in the same game. This line can resemble a Blackmar-Diemer Gambit Declined reversed. Yes, I could transpose exactly except that Black would be playing White in a BDG. “How?” you may ask. Here’s how.

Consider these possibilities after 1.d4 d5.
2.Bg5 f6 3.Bf4 e5 4.dxe5 Nc6 5.exf6 Qxf6.
2.e4 dxe4 3.Nc3 Bf5 4.f3 exf3 5.Qxf3 (same position).
2.Bg5 f6 3.Bf4 e5 4.dxe5 Nc6 5.Nf3.
2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5 (same position).

The transpositions are not forced, but they are interesting. In our game I chose 3.Bh4 as White. It avoids the BDG transpositions.

Sawyer (2000) - guest36, ICC 2 12 u Internet Chess Club, 10.08.2001 begins 1.d4 d5 2.Bg5 f6 3.Bh4 Nc6 4.e3 e5 5.Bb5 [5.dxe5 Nxe5 6.Nd2 Bd6 7.Ngf3 Ne7 8.Nxe5 Bxe5 9.c3 0-0=] 5...Bd7 [5...exd4 6.Qxd4 Bd6 7.Qd2 Nge7 8.Nc3 Be6=] 6.c3 [I missed that White could win a pawn after 6.dxe5! Nxe5 7.Qxd5 c6 8.Qxe5+ fxe5 9.Bxd8+/=] 6...a6 7.Ba4 exd4 [7...Nge7 8.Bg3 Nf5 9.dxe5 Nxg3 10.hxg3 Nxe5 11.Nf3=] 8.cxd4 Bb4+ 9.Nc3 Qe7 10.Qh5+!? [10.Nge2+/=] 10...g6 11.Qxd5 0-0-0 12.Qf3? [12.Nge2 h5=/+] 12...g5 [This allows White to bring his bishop to a little safer position. Black missed the punishing reply 12...Nxd4! 13.Bxd7+ Rxd7 14.Qd1 Qe4-+] 13.Bg3 Nxd4 [13...h5!-+] 14.Qd1 Bxa4 15.Qxa4 h5 [15...Qe4! 16.0-0-0 Bxc3 17.exd4 Rxd4 18.Rxd4 Bxd4-/+] 16.h4? [16.0-0-0=] 16...g4 [16...Qe4-+] 17.0-0-0 Nc6 18.Nge2 f5? [18...Nh6 19.Nf4+/=] 19.Qc2 [19.Rxd8+!+/-] 19...Bxc3 20.Qxf5+ Kb8 21.Nxc3 Nf6 22.Bf4 Rhf8 23.Bg5?! [23.Kb1+/-] 23...Qg7 [23...Rxd1+ 24.Rxd1=] 24.Rxd8+ Nxd8 25.Rd1 Nc6 26.Qe6 Nh7 27.Bh6 Black resigns 1-0

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