Crazyhouse/Bughouse openings Are there any known or "standard" openings in bughouse or crazyhouse chess? Obviously, as soon as pieces start coming off the board things get less predictable, so this question is less about the existence of opening lines as it is about moves which are consistently seen to be good; e.g. White playing e4 to open development lines, or Black avoiding g6, which creates exploitable weaknesses.
I play 1... Nf6 after 1. e4.  Then 2. e5 d5 3. exf6 exf6.  I have had great scores with this opening versus Chess master.

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1. e4 Nf6 2. e5 d5 3. exf6 exf6


The idea is to have strong king side with 4 pawns for defence. The second advantage is the development. Bishop in c8 is ready for attacks. If white castle king side u can put pawn in h3 if gh3, Bh3 or @Nf3+.