Wednesday, November 5, 2008

A Grandmaster Plays a New BDG

If you're a Blackmar-Diemer Gambit fan it's always interesting—well maybe even a bit exciting—to come across a new BDG played by a grandmaster, even a little-known one. Here's one played a few weeks ago in a Russian tournament. White is a Ukrainian grandmaster. Black is a Russian FIDE master.

White plays a rare line in the Teichmann Defense, loses the initiative at move 19, and struggles to hang on to a draw in an endgame where Black had winning chances. 

Kislinsky,A (2501) - Slugin,S (2425)
Zvenigorodskaya Open A
Zvenigorod RUS (5), 27.09.2008
BDG, Teichmann Defense

1.d4 d5 2.Nc3 Nf6 3.e4 dxe4 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bh5 7.g4 Bg6 8.Bf4 e6 9.Ne5

This line, with Bf4, is quite rare in the Blackmar-Diemer. The position is more likely to occur in a line in the Trompowsky, after 1.d4 Nf6 2.Bg5 Ne4 3.Bf4 d5 4.f3 Nf6 5.e4 dxe4 6.Nc3 exf3 7.Nxf3 Bg4 8.h3 Bh5 9.g4 Bg6 10.Ne5 e6, reaching the above position, but with an important difference: Black has lost a tempo with an extra Knight move. It's now White's move. One such game continued 11.Qf3 c6 12.0-0-0 Be7 13.h4 Nd5 14.h5 Nxf4 15.hxg6 fxg6 16.Nf7 Kxf7 17.Qxf4+ Ke8 18.Qe4 Bg5+ 19.Kb1 Qe7 20.Bc4 Kd7 21.Rde1 e5 22.dxe5 Kc7 23.e6 Na6 24.Qe5+ Kc8 25.Bxa6 bxa6 26.Rd1 Bf6 27.Qa5 Qb7 28.Rd7 Qb6 29.Qxb6 axb6 30.Ne4 Be5 31.Ng5 Re8 32.Rhd1 h5 33.Nf7 Bc7 34.Rxc7+ Kxc7 35.Rd7+ Kb8 36.Nd6 Ra7 37.Nxe8 hxg4 38.Rd8+ Kb7 39.Nd6+ Kc7 40.Rd7+ Kb8 41.Rxa7 1-0, Indbryn-Royset, NOR-chT Tromsoe,1998
9...Nd5 10.Nxd5 Qxd5 11.Kf2 Nc6 12.Bg2 Qxd4+ 13.Qxd4+/- Nxd4 14.c3 Nb5
14...Bc5!? 15.cxd4 Bxd4+ 16.Kg3 0-0-0+/-
15.Bxb7+- Bc5+ 16.Kf3 Rb8 17.Bc6+ Ke7 18.a4 Nd6 

The game turns here. Better is 19.b4 Bxb4 20.Nxg6+ hxg6 21.cxb4 Rxb4 22.Rac1+/-
19...Be4+ 20.Bxe4 Kxd7 21.b4 Nxe4 22.Kxe4 Bd6 23.Rhd1 Ke7 24.Be3 a6 25.Kd3 f6 26.Kc4 h5 27.g5 f5 28.Bd4 e5 29.Re1 Ke6 30.Ra2 e4 31.Bxg7 Rhg8 32.Bf6 Be5 33.b5 Bxf6-+ 

34.gxf6 Kxf6 35.Kc5 Rge8 36.c4 Re6 37.Rd2 axb5 38.cxb5 f4 39.Rd4 Kf5 40.Rd7 e3 41.Rf7+ Ke4 42.Rf1 

Black should win with 42...e2 43.R7xf4+ Kd3-+
43.Kc4 e2 44.R7xf4+ Ke3 45.R4f3+ Kd2 46.Rd3+ Kc2 47.Rc3+ Kb2 48.Re1

48...Rd8 49.Rcc1 Re4+ 50.Kc5 Rxa4-+
49.Rcc1-/+ Re3 50.a5 Rxh3 51.a6 Ra3 52.Kb4 Re4+ 53.Kc5 Re6 54.Rc4 Rf3 55.Kd5 Re7 56.a7 Ra3 57.Re4 Rxe4 58.Kxe4 Kc3 59.Rxe2 Kc4 60.Rc2+ Kxb5 61.Rxc7 Kb6 62.Rh7 Rxa7 1/2-1/2