Friday, January 6, 2017

Blackmar-Diemer Gambit Kragh

My new Blackmar-Diemer Theory 4 book gives detailed analysis after 1.d4 d5 2.e4 dxe4 such as 3.Nc3 e5. This is the Lemberger Counter Gambit. Niels Kristian Kragh of Denmark was born in 1982. Kragh played White in a Blackmar-Diemer Gambit Lemberger Counter Gambit. Peter Erik Olsen was born in 1966. Olsen is a FIDE International Arbiter with a master rating of 2228.

It may seem safe to assume that a player rated 2121 knows the theory of any opening he employs in tournament play, but Kragh has often played 1.e4. When he tried a BDG, Kragh responded to the Lemberger with the most common fourth move 4.Nxe4.

Normally Black captures on d4 with the pawn or queen on move four. Peter Erik Olsen developed a knight with 4...Nf6. In the notes I provide analysis on other Black options. The line 4.Nxe4 Nf6 is section 2.4 in my Blackmar-Diemer Games 2 book and the Blackmar-Diemer Theory 4 book.

Kragh (2121) - Olsen (2228), OeBRO KM 2016 Copenhagen DEN (6.7), 30.12.2016 begins 1.e4 d5 2.d4 dxe4 3.Nc3 e5 4.Nxe4 Nf6 [4...Nc6 5.Nf3 exd4 6.Bb5 Bf5 7.Bxc6+ bxc6 8.Ng3=; 4...f5 5.Nc3 exd4 6.Nb5 Nc6 7.Bf4 Bd6 8.Nxd6+!=; 4...Bf5 5.Ng3 Bg6 6.Nf3 exd4 7.Nxd4 Bc5 8.Be3=; 4...Be7 5.Nf3 exd4 6.Nxd4 Nf6 7.Nxf6+ Bxf6 8.Qe2+!=] 5.Nxf6+ Qxf6 [5...gxf6 6.Be3 Nc6 7.Nf3 Be6 8.Be2 Rg8 9.g3=] 6.dxe5 [6.Nf3!? exd4 7.Qe2+ Be7 8.Bg5 d3 9.Qe3 Qe6 10.Bxd3 Qxe3+ 11.Bxe3 Nc6 12.a3 0-0 13.0-0-0=] 6...Qxe5+ 7.Be2 Bg4 [7...Nc6 8.Nf3 Qf6 9.c3=] 8.Be3 Bxe2 9.Qxe2 Be7 10.Nf3 Qa5+ [10...Qxb2 11.0-0 Nc6 12.Rfb1 Qc3 13.Bd2 Qf6 14.Bg5 Qe6 15.Qxe6 fxe6 16.Rxb7=] 11.Bd2 [11.c3 0-0 12.0-0 Bd6 13.Nd4+/=] 11...Qa6 12.c4 Qe6 13.Qxe6 fxe6 14.0-0-0 Nc6 15.Rhe1 Kf7 16.Ng5+ Bxg5 17.Bxg5 Rhe8 [17...Rhf8 18.Bh4+/=] 18.Rd7+ Kg6 19.Bd2 Rac8 20.Re3 Re7 21.Rxe7 Nxe7 22.Rxe6+ Kf7 23.Re4 Nf5 [23...c5 24.Bc3+/-] 24.Bc3 [24.g4+/-] 24...g6 [24...c5 25.Re5+/-] 25.b3 c6 [25...c5 26.Kc2+/-] 26.f3 b5 27.Kb2 Nd6 [27...Re8 28.Rxe8 Kxe8 29.cxb5 cxb5 30.Be1+/-] 28.Rd4 Ke6 29.cxb5 cxb5 30.Bb4 Nf5 31.Re4+ Kd5 32.Bc3 Rc7 33.g4 [33.g3 Kc6 34.a3+/-] 33...Nh4 34.Re5+ Kc6 35.f4 Rf7 36.Re6+ Kc5 [36...Kd5!?] 37.Bf6 [37.Be1 Nf3 38.Bg3+/-] 37...Ng2 38.f5 gxf5 39.gxf5 Nf4 40.Ra6 Nd5 41.Bh4 Rxf5 42.Rxa7 [42.Bg3+/=] 42...h5 [42...Re5=] 43.Ra8 Re5 [43...Kd4 44.Rc8+/=] 44.Rc8+ 1/2-1/2

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