Chess openings that punish oponent going off book?

Hi,

My favorite opening has always been the french defense and I have grown a bit tired off all the variations in it.  I am looking for something much more aggressive and exciting to play for either white or black and really master it. the opening doesn't need to be 100 percent sound.

I am looking for a very complex opening (can be a gambit) that can have many lines that result in big losses for my opponent, not just small improvements in tempo/position if he doesn't follow an exact order off moves (same will go for me off course) if he manages to get through a whole set off moves correctly where the smallest misstep can result in disaster and it results in a slightly favorable position for him that is totally okay (would love to later on study how to make the best out off those positions as well).

Any advice is appreciated.

Elephant gambit, but there won't be big loses for white if he doesn't go for the best move, just a better postion for black

But if you want such a thing (for white) you can go for this:

White has way more choices, but you can find some for black too.

Thank you for your response ,

Checked out some main variations of the Elephant Gambit, seems like an interesting gambit to add to my repertoire, just wished there were some more crazy lines/traps as part of the main lines. But I will be using it for a while and see how it flows in a game

This is the most dangerous line for white, but if played properly it leaves white whit some good advantage, it's called wasp varaition:

About the only line that fits what you are talking is the Najdorf Sicilian, Poisoned Pawn variation, but it's not like you can force it.  Numerous options to avoid it from both sides!  Legit alternatives in parenthesis:

1.e4 (White can of course play numerous other first moves)

1...c5 (Of course, 1...e5, French, and Caro-Kann are just as sound)

2.Nf3 (2.Nc3/2.c3/2.d4/2.f4)

2...d6 (2...Nc6/2...e6)

3.d4 (3.Bb5/3.c3)

3...cxd4

4.Nxd4 (4.Qxd4)

4...Nf6

5.Nc3 (5.f3)

5...a6 (5...g6/5...Nc6/5...e6)

6.Bg5 (6.Be3/6.Be2/6.Bc4/6.f4/6.g3/6.h3)

6...e6 (6...Nbd7)

7.f4

7...Qb6 (7...Qc7/7...b5/7...Be7/7...Nbd7/7...h6)

8.Qd2 (8.Nb3)

8...Qxb2

9.Rb1

9...Qa3

10.e5 (10.f5)

Good luck forcing the line!

Thank you so much Thrillerfan,

Looks exactly what I am looking for, yes I won't be able to force it but that is totally fine since it is a part of the sicilian and I like the alternatives that it can flow into.

A lot of the open sicilians against 1. e4 do this. The semi-slav and the triangle system do this against d4, but you have to worry about either exchange slav or exchange QGD, which is annoying. Grunfeld and King's Indian are also sharp and highly theoretical.

Try a3 or h3

you are guaranteed to win or lose with either maybe more lose

That is exactly what someone played against me in bullet. Needless to say, I did not figure out the right moves in 2 minutes, big surprise. That is why I generally avoid e4 openings. But people like to drag me into what is familiar terrain for them.

you should definately learn semi slav moscow variation where both sides can go wrong every move because it is so complex

Most players will advise against it, but I say learn 1. g4 backwards and forwards. I sat down with a chessboard in my living room for many hours and worked out all the ins and outs. Every time I lost on chess.com, I'd go back to the chessboard and spend the time to figure out how I could have won. So I have knowledge of what to do, whatever Black decides to do. Whereas the poor other guy, this may be his hundredth game against The Grob, that is not enough, and he is going to lose on time if he tries to figure out my moves. You can beat +200 point players with this tool. I had one just abandon the game and cuss me out after 1. g4. They know about it and they really detest this opening and will say all calumny against it. I play either that or 1. f3 2. Kf2 in 2:1 bullet. Enjoy!