How to fight against Kings Gambit as black?

Is there a simple line from black view against kings gambit?

yes there are....being the Falkbeer Counter Gambit 2...d5 attacking whites pawn on e4.. but your best bet is to accept whites gambit and take the pawn however white will counter with 3.Nf3 preventing you from moving your queen to h4 and checking the white king... I love playing the Kings Gambit from both sides of the board... but consider it and experiment.

With Nc6, Bg4 and 0-0 the simplest plans. White can try g3 to break the pawn chain but there are obvious risks. As a general rule of thumb if you accept the gambit try to hold the pawn as if white can play Bxf4 he is a happy bunny.

In the case of 4.h4 you can try:

Of course there are many other lines as well!

Candidate35 did anyone play the 3 pawn gambit against you?

The Modern Defense with 2... d5 3. exd5 exf4 4. Nf3 Nf6 is an easy way to get at least equality.

http://chesstempo.com/gamedb/opening/1025

it's not that good for Black as defending the pawn, all variations that are dangerous for White are defending the pawn, from d6 ( Fischer ) to g5, to the Falkbeer Countergambit, and some lesser known. White has always some compensation for the pawn and the King on f1 is not that big of a problem.

http://chesstempo.com/gamedb/opening/1110

the charousek gambit is dubious

http://chesstempo.com/gamedb/opening/1118

you will also notice that in case of Qf3 Black is better to defend the pawn with Bd6

Not taking on h2 in that line is very unsporting! Like when white plays b6 instead of bxa6 against the Benko :-)

2. Be7 with idea 3. Bh4+ wins by force (joke but most people aren't fluent in that variation since it's no longer the 1800s) and white often finds himself helpless being unable to castle  

watch how it turns out white is the helpless one

 http://www.chessgames.com/perl/chessgame?gid=1027959

Yes, well, needless to say the White King is better placed on the queenside therefore travelling to d1 is sensible. Not that I have played it as White, ever.

Well it's true there are less risky choices for white! Whatever opening or variation gets played though the better player usually wins and Henry Bird was amongst the best of his time. Here he met an even stronger player and was less successful.

what opening do u recommend for beginner?

Simple and good is 2.Bc5 the declined, classical variation.(Notice your e pawn is not really hanging as Qh4+ would be crushing.) Natural development after that should give you a reasonable position. As a bonus, playing 2.Bc5 deprives the King's Gambit player of the kind of game they're hoping for. When they see 2.Bc5, inwardly they sigh a little.

With the idea if 4.Bh4+ 5.Nxh4 Qxh4+ 6.Qf2? This is a question I'm not adorning 6.Qf2 with a question mark :-) Looks pretty solid.

I agree with the NM. The declined is about as simple as it gets. I also like getting in peoples heads and kings gambit players seem to get annoyed by 2.Bc5 similar to how some French players get annoyed by the exchange. Don't play their game, make them play yours.

The queen moves to e2 for other reasons obviously, as I pointed out the king is rock solid on d1, and it will move again evantually to leave more room for the rook, only momentarily out of play.