MatrixX wrote on 03/09/09 at 19:53:19:
[...]get an advantage against 1.Nf3 d5 2.c4 d4!? [...] 3.c5 or 3.b4 seem quite interesting.
So: what's your favourite line against it, and: do you think you get advantage with your lines?
In analogy to my Vulture/Hawk/Woozle against 1.d4 I also studied ways to establish an advantage for White after 1.Nf3 d5 2.c4 d4. In
Der Geier (1986) and
The Vulture (1989) the last chapter covers these "Penguin" attempts. That name ... well... I thought that these reversed birds, with an additional tempo, should be more respectable (= serious looking) than the black versions...
The main systems were:
3.c5 ("Penguin Hawk"),
3. g3 c5 4.Ne5 ("Eagle") and
3.Rg1 ("Penguin"), with some analysis. I know my nomenclature is horrible. For systematic reasons, the Eagle should be "Vulture Penguin", then I had a "Woozle Penguin", but it was incorrect, so the name was dropped. The Penguin was originally the "Penguin Penguin". The German "Habichdpinguin" was translated to "Penguin Hawk", instead of "Hawk Penguin". Don't ask me why.
The
British Chess Magazine 10/2000 has Gary Lane's article "Call my Bluff", with Grunberg - Rahman (3.c5; 1-0, 22).
Kaissiber 16 (2001) studies the same game and discusses also Gabriel - Kortschnoi, Zurich 1999 (1.Nf3 d5 2.c4 d4 3.b4 f6 4.e3 e5 5.c5; 0-1, 32), suggesting some improvements for White.