A Beautiful Bird! 3

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StrategicusRex

This was a very weird Bird, that I thought I was going to lose at the end.  I've heard that it isn't good for black if he plays 1. f5 in response, but I'm not sure.  What do you guys think?

 

Elubas

I think I recall in chessmaster it said 1...f5 can be replied with the gambit 2 e4, but I don't remember any analysis of it at all.