A Knight for a Bishop in the Alapin-Diemer Gambit

This week's TWIC yielded an Alapin-Diemer Gambit that reminded me of an old question.



Here's the article I mentioned, a PDF extracted from BDG World 46, June 1991.

Two Draws in the Alapin-Diemer

An Alapin-Diemer Gambit turned up in today's TWIC. White's offer of the f-pawn is met by its old nemesis, e7-e5. Two draws in this line for you:

	A	B	C	D	E	F	G	H
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	A	B	C	D	E	F	G	H

Knoop, W (2059 - Van de Griendt, JW (2352)

1/2-1/2 (TCh-NED 2009-10) 9/26/2009

[#] 1.d4 e6 2.e4 d5 3.Be3 dxe4 4.Nd2 Nf6 5.c3 Nc6 6.f3 e5 7.dxe5 Nxe5 8.Nxe4 Qxd1+ 9.Rxd1 Nxe4 10.fxe4 Be6 11.b3

[11.Bd4 Nc6 12.Bb5 a6 13.Bxc6+ bxc6 14.a3 O-O-O 15.b4 Bb3 16.Rd2 Re8 17.Re2 Bc4 18.Re3 Bd6 19.g3 f5 20.Ne2 Be5 21.Kd2 Bxe2 22.Rxe2 Bxd4 23.cxd4 fxe4 24.Rhe1 Rhf8 1/2-1/2 Hashemi,A-Liepold,S/Bayern 2003/EXT 2004]

11...a5 12.Nf3 Nxf3+ 13.gxf3 Be7 14.Rg1 Bh4+ 15.Bf2 Bxf2+ 16.Kxf2 O-O 17.c4 Rfd8 18.Be2 Kf8 19.Ke3 Rxd1 20.Rxd1 Ke7 21.f4 [1/2-1/2]

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Continuity

While looking over Euwe Defense games I once again came across this well-known one of Diemer's:

	A	B	C	D	E	F	G	H
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	A	B	C	D	E	F	G	H

Diemer EJ - Fuller RA

1-0 (0292 Hastings Pr Resv Major) 1957

[#] 1.d4 Nf6 2.Nc3 d5 3.e4 dxe4 4.f3 exf3 5.Nxf3 e6 6.Bg5 Be7 7.Qd2 O-O 8.Bd3 Nbd7 9.Qf4 Freidl notes that the English master now took 32 minutes deciding on his next move. 9...b6 10.Qh4 Re8 (else Bxh7+) 11.Ne5 Nf8 12.Nc6 Qd6 13.Nxe7+ Qxe7 14.O-O Ng6 15.Bxg6 fxg6

[15...hxg6? 16.Ne4 (or16.Rxf6 )]

16.Ne4 Rf8 17.Bxf6 gxf6 18.Rxf6

[18.Nxf6+ was stronger.]

18...Rxf6 19.Nxf6+ Kh8 20.Qe4 Rb8 21.Rf1 Bb7 22.Qe5 Qd6? (Only Qg7 survives--Diemer) 23.Ne8+ [1-0]

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One of the many satisfying aspects of chess is its continuity, the recurrence of themes and ideas over the years. For example, consider this game by one of strongest BDG players of recent years.

	A	B	C	D	E	F	G	H
8									8
7									7
6									6
5									5
4									4
3									3
2									2
1									1
	A	B	C	D	E	F	G	H

Diebert Charles - Bath J

1-0 (0097) 1983

[#] 1.e4 e6 2.d4 d5 3.Be3 Alapin-Diemer Gambit 3...dxe4 4.Nd2 Nf6 5.f3 Nd5 6.Qe2 c5 7.dxc5 Qa5 8.c3 Nxe3 9.Qxe3 Bxc5 10.Qxe4 Bxg1 11.Rxg1 Qb6 12.O-O-O Nd7 13.Be2 Nf6 14.Qh4 Qa5 15.Nc4 Qxa2 16.Nd6+ Kf8 17.Qb4 a5 18.Qc5 Nd7 19.Nxc8+ Nxc5 20.Rd8# [1-0]

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