Advise on a new opening

I have spent almost all of my time and games on using the Colle (Z and K) as white and Caro-Kann against everything as black.  Im averaging about 53% wins in Blitz and about 90% in online games with a rating of about 1560.

I want to learn a new opening as white.  And here are the characteristics Im looking for...

1.  Provides for a nice open-type game.
2.  Has sharp positional lines.
3.  Is appropriate for a player of my rank and can be learned with moderate study.

I want to exercise my studies with an opening that leads to sharp, positional, and possibly tactical opportunities simply to expose myself to more of those to help advance my chess education.  If I want to push myself positionally and tactically I have to expose myself to that kind of play.

Any advise please.

thanks,
tex

Keep in mind that in most variations black chooses the opening and that aiming for open positional games is somewhat contradictionary. But playing e4 seems fine to get some sharp lines, some with a positional character. 

king's gambit.

If you're averaging 90% wins in online, your oppostion is too weak. Players closr to yo your own rating will push you positionally and tactically, no matter what the opening.

What are sharp positional lines?

The so-called King's gambit is a very good variation with white with opening moves d4 and c4

I lately play the english variation with white with 1.c4 and 2. Nc3 if you want to look at some of my games

Again if you prefer e4 as the first move ..... then there is other variations

Sharp lines are the ones that have a lot of action early on or later on in the game. Lots of exchanges (of pieces), and positional moves.

They are called sharp when there is play for both sides, and the outcome is not determined yet.

Sharp lines are never boring.

For example ..fighting over a pawn is not sharp play

However you need to fight for the pawns and not give them up since they are like Queens

think you mean queen's gambit.

Yes trigs, thanks for correcting me

I do mean the Queen's gambit

I dont play much e4 as my first move and i get confused sometimes.

However i dont know exactly whats so great about the King's gambit and if you care to explain. I dont like 2.f5 at all ,speaking for myself of cource

What do you mean by you spend almost all of your 'time' and games on using those openings? Do you spend time studying the Colle? (What is there to study I guess is a better question...)

1.e4 openings can often lead to open positions where positional and tactical themes mix. It's hard for Black to force White to close the position.

Openings based on d4 and c4 have sharp positional ideas.

It's really up to you, I could suggest a repertoire for either that strives to get a nice open position where you either strive to prevent or delay the opponent's safe development of the pieces or get an attack.

I would not recommend openings, however, where you win a pawn but your opponent gets much more activity (like 4.Ng5?! in the Two Knight's)

i love the king's gambit. i prefer open, attacking positions. some lines can be very sharp depending on black's moves (one example that comes to mind is the Muzio gambit). usually it is very tactical as well.

I mean that for the last 1300 games I have played the Colle or Caro Kann. Period.  As a result Im very comfortable, of course, with those.  Now I want to start seriously adding to my opening tool set.

tex

Against players with an average rating of 1560 you dont have to think about openings at all. Start playing with better opponents.

It's worse than that, he got his 1560 rating against average opponents of under 1300. That's the point I was trying to make in#4

Against 1300 opponents, you could try the Danish Gambit, if you like sharp play.

theetexan

You can study some variations in order to find which one suits you best.

A good place to fully study a variation is the yearly informator, a book published by Fide (i think). You can find it in chess stores or book stores

There you can study the main line and also there is games you can look at.

Certainly its not fun to play only the Carro-can for the rest of your life !?

Scotch Gambit.

If you like nice open games then e4 would be more likely to lead to that than d4 or c4.

Also as you already know the Caro-Kahn well from the Black side, if they do play that against you you would be on familair territory straightaway.

You will need to study an anti-Sicilian and lines after 1. e4 - e5 though.

what about smith-morra gambit against the sicilian defense: 1. e4, c5 2. d4! cxd4 3. c3, dxc3 4. Nxc3.

I don't think the Smith-Morra is necessarily bad, but after 3...Nf6 White doesn't really get the positions he wants so you have to learn the Alapin variation as well.