grob opening

Cinturonegre
Cinturonegre
May 14, 2011, 9:06 AM |
1

I'm finishing a tournament with the Grob opening. Maybe i take 3rd or 4rth position in my group.I don't pass to the final round. Anyway, i like to leave 2 matches i play.

This opening begins with g4 movement and it will be created by Henry Grob, swiss international master active in the twentieth century (more information in wikipedia).

I find two possible lines  without entering in a gambit.

1) London defense:

 

2) Keene defense:
I think the majority of matches played  with this opening will be winned by black pieces. I don´t understand how white could defend correctly their king with a weak position in the kingside at the beginning . 
Here's the matches, one hardwork win :
 
The other is a lost and an example of catastrophic consequences. It's made as a puzzle: