Aggressive openings for black

Hi Keerthana15--it's important to differentiate between openings that are aggressive and ones that are simply unsound.  Black gets less freedom for gambits than white because of the added disadvantage from move one.  Use this article for guidance and you'll see black's options for trading material for added positional play:

http://en.wikipedia.org/wiki/List_of_chess_gambits

The Benko has a good reputation, while the Albin is acceptable but still less popular than just declining the Queen's Gambit.  The Budapest is better than it looks, the Elephant is as bad as it looks and probably worse, while the Englund is considered an inferior Budapest.  Some openings lend themselves to common sacrifices in general, like giving away the b7 pawn in the Sicilian or the g7 one in the French.  Then again if you want attacking chances without chucking a pawn, you could always just play the Silician proper.  It didn't become black's most widely used opening by coincidence.

The Englund is a totally different beast than the Budapest.  The Budapest is far more sound whereas the Englund has chances to go into a game with a kingpawn game feel where black is in a terrible spot:

It really all depends what black does.  After 2...d6 he can get sort of an unsavory variation of From's Gambit, or he can try Nc6 with Qe7 for the same pawn recovery method as in the Budapest.  None of it's terribly good compared to having c4 and Nf6 in there first though, so woe to anybody who opts for the Englund instead.

The From Gambit is actually sound unlike the Englund.  The two are sort of similar but 1.d4 and 1.f4 achieve the same things with the important differences being that 1.d4 doesn't weaken the kingside while also controling e5 (like f4) and preparing development.  This important difference (kingside weakening) is what makes the From sound and the Englund not. 

As to the Budapest one of the reasons I play 2.Nf3 is to avoid it but still know about 4.a3! in the Fajarowicz variation. 

You may like the Elephant gambit: 

http://www.google.com/url?q=http://www.thechessdrum.net/palview3/short-corbin.htm&sa=U&ei=_kPYUremEqmysQSMhYDwBA&ved=0CB0QFjAA&usg=AFQjCNFSIceuEsC-Bvq9Tj2WxlWy5hKJ4g

Or the Albin-Blackburne: http://webcache.googleusercontent.com/search?q=cache:5g792uYbLIgJ:http://www.kaissiber.de/Albin-Blackburne_Gambit.PDF%2Balbin-blackburne+gambit&hl=en&gbv=2&ct=clnk

These are slower gambits like the two knights defence but they aren't as theoretical as the Latvian.

Thanks for the replies friends, Benko and Albin is familiar. I looked at englund and it seem promising but it has traps (https://www.youtube.com/watch?v=5FO2cIlD9Rs) and budapest seems to be highly dependent on white's move.From's gambit looks soild..Yet to explore!

Thanks for the first website. Its really great.

You ever played both of these gambits?

1.) The Elephant Gambit isnt bad nor worse...from the point of theory its much more sound than the Latvian. Its a positional Gambit, not as wild as the Latvian. With best play from both sides there are only two lines, which give White a += position, but not even more. I played the Elephant Gambit for a long period and scored very well, never saw an opponent, who played one of the above mentioned best lines. I switched to the Latvian because its more fun to play and i prefer the wild positions in the Latvian. When its worse from your point of view, show the critical lines for Black.

2.) The Englund is completely different to the Budapest Gambit...and dont forget, that there are many lines for Black after 2.dxe5...you can play several gambits out of this position...the main line with Nc6 and Qe7 (which i dont like,because Black remains in a passive position most times), the Blackburne-Hartlaub-Gambit with 2...d6, the Soller and the Felbecker Gambit with 2...f6 or 2...Sc6 and 3...f6 or even the Zilbermints-Gambit with Nge7. I prefer the Blackburne-Hartlaub and the Soller, which gives you the best practical chances for active play. Dont get me wrong, these lines are unsound, when White knows how to handle, but most players on club level dont know how to play it correctly with the white pieces.

I have tried Englund and have won with this. As you said they fell in traps,but i see good players easily defend this. Yet to try elephant.It seems to be slow poison.

Regarding the Englund, you are wrong, i play the Englund for nearly 2 years now as my standard opening vs. 1.d4 and iam very pleased with my results, online and OTB...take a look at some of my games.

I wouldnt play it only because of setting traps...that wouldnt work in the long run...i play it to force White out of his QGD-comfort-zone with positional play and for most players the variations of the Englund are unfamiliar...so they walk on unknown ground.

if you like to play the Elephant Gambit i recommend you the e-book written by Peter Tart...it gives you a good and deep look in this gambit, without having to memorize 25-moves-lines...

I've tried everything at some point, usually versus Chessmaster on a decent level, and still regard the Englund/Elephant as lousier than most other options.  That's not to say they aren't good for surprise value of course, or destined to succeed against myriads of blitz/club players.  But in the Englund, even if white returns the pawn, he still gets free developing moves like Nf3, Bf4, etc. while his opponent has to run around figuring out how to get it back.  There's just no positional weakness or obvious compensation for the lost time--again, the question is why that opening instead of the Budapest?

The Elephant basically has the same problems--white can grab either pawn, return it at will, and and he's not forced into any positional deterioration to compensate.  There are traps of course, lesser known than something like Noah's Ark and likely to snare more people because of it, but overall it's just not a "good" move.  These gambits aren't so much sacrifices for an attack as they are sacrifices to see how long the opponent tries to hang onto a pawn, and that by itself just never struck me as promising.

Englund!

Here's one of the lines from my German Opening I created. This is called Kaiser Attack

nice game O_O

Have you won games using this attack?

but only 1 out of 1000 players would be so stupid to play 5.Qd2...

In blitz and bullet and a few longer games...

Very few gambits are completely sound for black. Benko/Blumenfeld gambits being  among the few arguable exceptions.

For aggressive openings as black:

- against e4: Sicilian Naidorf or the Dragon (the king-side fianchetto fits with the anti-d4 repertoire)

- against d4: King's Indian Defence, Benko, Modern Benoni