Hey guys, I found this somewhat risky but risky opening that even GMs use. The QGD is quite normal but then, we enter the Meran system, producing gambit-style play. So, I just need some help analyzing the game so I can study this game further and any thing on the Semi-Slav, Meran would be nice! :)

The game you show is not the Meran. It's an anti-Moscow gambit.

The Meran is 5.e3 e6 6.Bd3 dxc4 7.Bxc4 b5.

After 5.Bg5, black can play 5...dxc4 6.e4 b5 going into the Botvinnik System, or 5...h6 after which white can choose the quiet Moscow System (6.Bxf6 Qxf6) or the anti-Moscow gambit (6.Bh4 dxc4 7.e4). Or black can go into the Cambridge Spring QGD with 5...Nbd7 followed by Qa5.

thank you for clearing my confusion! :)

Sadler has an EXCELLENT book on the Semi-slav.

1.Nf3 is not called the Zukertort opening, it's called the Reti or King's Indian Attack. 

You can be right or wrong. Some people will say one side, some will say other. I would say that 1. Nf3 IS the Zukertort Opening. The Reti is characterised by 2. c4, and the King's Indian by d3 and e4 (and possibly a kingside fianchetto). But at 1. Nf3, it is too early to say what opening it is- indeed, 1. Nf3 Nf6 is the Zukertort: Symmetrical Variation.

That's true. I think the official name is The Reti. 

The Reti is 1.Nf3 d5 2.c4.

I think 1.Nf3 is called "1.Nf3". That's what people call it the most, anyway. Not Zukertort.

1 Nf3  can become many openings depending on the next few moves. I think its a bit premature to call 1 Nf3 any opening yet . What would you call 1 e4   or 1 d4  ?  However, I did see that after only 1 Nf3 its called reti opening when I asked for ECO code after only 1 Nf3.

Ok, ty any help on the opening itself?

It is called the Zukertort Opening

Reti is 1. Nf3 d5 2. c4

1. Nf3 is Zukertort and 1...d5 2.c4 is the Reti

I mean no disrespect, but a player at your level has about as much business worrying about nuances in the Anti-Moscow Gambit - issues which the very best players in the world have yet to settle - as a school student with one science class has of supervising the construction of a nuclear reactor.  It involves subtleties you cannot yet begin to understand.

As a practical matter, you will very seldom see players in your playing range following the lines for as many as 8 moves before deviating in some way, so any memorizing of the lines over that depth will be completely wasted for you.  If you play a turn-based or correspondence game where one might follow the popular GM lines, just use a database to do it, it is legal and expected in those sort of games.

Follow basic principles of development and forget the openings for now.  Learn the simple mates - with 2B or a R, B+N is a good exercise but in practice it is rarely seen.  Learn the basic pawn endings, how to use your King to promote a pawn or prevent one from promoting.  Play as much as you can, at slower time limits.  Speed chess, blitz and bullet, may be fun but it is hard to learn much playing that fast.

Opening theory can be fascinating, but it can also be as addictive as a drug, diverting you from the things you ought be doing instead while you float around aimlessly in variations you will never see on the board.

I disagree Estragon. Learning opening theory helps you see patterns in the opening you play, even when deviations are made. It helps you to formulate plans, and to know tactical or strategical motifs.