Strong openings to get your opponent out of the book

What strong openings do you recommend to get your opponents out of the book?

For me, I have great results playing the:

Scandinavian, Modern Variation (1. e4 d5 2. Nf6)

Dutch Defense, Classical or Normal (1. d4 f5.)   Classical: 2...e6     Normal 2...Nf6

Sicilian, Chekkhover Variation. (1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4)

Normal continuation: (4...Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3)

Benoni-esque structures are interesting.

Also, the Alekhine leads to possible unfamiliar territory,

Well,the Danish Gambit throws people off but some black players just decline the gambit,which probably leads to an equal or slightly better position for black. Good news is I've never seen anyone play the best reply against it.I've also noticed that white players don't really know theory in the Alekhine(under 1600 that is).

Well,the Danish Gambit throws people off but some black players just decline the gambit,which probably leads to an equal or slightly better position for black. Good news is I've never seen anyone play the best reply against it.I've also noticed that white players don't really know theory in the Alekhine(under 1600 that is).

Well,the Danish Gambit throws people off but some black players just decline the gambit,which probably leads to an equal or slightly better position for black. Good news is I've never seen anyone play the best reply against it.I've also noticed that white players don't really know theory in the Alekhine(under 1600 that is).

Apparently the Grob has the best win percentage for White of all the opening moves (obviously not if you restrict that to games of Master level and above!). It's full of traps Black.

At your level every opening will get your opponent out of book after move 3.

In fact, you shouldn't worry about getting your opponent out of book until you gain another 1000 rating points or so...

Openings are the least of of your concerns.

A lot of the out-of-favor but never refuted openings can work and give you an advantage if you study the opening thoroughly.

In the '90's, the Bishop's Opening had been out of favor for 60 years, but I taught it to the high school chess club I coached because it's relatively easy to form a middlegame plan with it - especially if you can play f4 and f5 early, castle Q-side, then launch a K-side Pawn Storm.  Our team rode the Bishop's Opening to the County Championship and the 3rd Place Trophy in the State Scholastic Championships.

Then Kasparov played it in a World Championship match.  Suddenly we lost our edge because more people knew it - but still won the County and finished 5th in the State.

There is a reason why opening lines go beyond move 3.  They have been proven to be much better than our novelty lines.  I have found that when my opponent goes out of book so early, it is going to be a quick game.

Would the anderrson opening, followed by c4 or e4, be a good opening to catch opponents of guard?

Smh if only people would strenghten their understanding on main lines instead of being quirky... Or, practice tactics much more....

Chekhover is an interesting variation to play as black. Sicilians players should be happy to see this as black has multiple lines to gain equality. The Nc6 line is one of them, white maintains the queen in the centre but gives up the bishop pair to develop black's bishop to c6 on the long diagonal.

There is also this a6 line.

And it's basically a Maroczy Bind Dragon but improved for black, as white is down a tempo and the knight on f3 is not ideally placed as it blocks the f pawn.

There are less well known lines within the Open Sicilian which provide a better game for white like the Adams Attack against the Najdorf. An example line:

IMO for white

a : English Opening.

it is necessary to study the symmetrical variant otherwise I think it is useless to play 1) c4 because "the logical reaction of someone who doesn't know" is simply to try to play a symmetrical game and opt not to lose first of all.

After on the natural move 1...e5 White will play a Sicilian reverse color defense with one more move and it would not be bad if London go into a reverse color Dragon variant with one more move because already the Dragon variant can be annoying for White because it is dangerous but it is also a strong opening that Magnus Carlsen has played quite a bit with Black.

b : The Colle system.

So this opening is still strong because there are notably Arthur Youssoupov and Matthias Bluebaum who play or played it.

The London system has become too popular and for example in banter blitz we can notably see Laurent Fressinet plays this system with many victories so in the end I think our opponents will not really get out of their book because this system is known and is taken more or less seriously.

c : The Scottish Opening (which may have been transposed, example 1. e4 e5 2. d4 exd4 3. Nf3)

The Scottish opening has already been played by Garry Kasparov and other GMs, it's a pretty strong opening and I think Black player does not usually know much about because Black player have to first worry about the Spanish opening and especially the Max lange attack of the Italian (which I thnik can be unbearable for a player of 1...e5)