The triangle Slav

I have been looking for an instructive place to study the Triangle Slav.  I have not found any though.  If you know any sites or pdf books (preferably free) please add a comment below.

Basically, Triangle Slav = Semi-Slav.

Wrong, Triangle slav is defined by d5-c6-e6, Nf6 not played.

While u have Nf6 in semi slav, which can make a difference.

Triangle set up is more flexible as u can transpose into semi slav, but play for a Stonewall, play dxc4 and b5 (Noteboom style), etc...

The problem begin white's 4.e4 : u gain some ideas, u give one. But black can hold this line with accurate play.

Where can I learn it.

Somebody else literally had almost this exact same question about a month or two ago, and so I'll give you the exact same answer.

There's a book by Ruslan Scherbakoff on a repertoire with the Triangle Slav. Additionally, there's a video series on the Triangle Slav by Sopiko Guramishvili which you can find on another site (chess.com doesn't like other sites to be mentioned ), I'll let you figure out which one.

I need to have a membership for Sopiko Guramishvili.

All right, maestro, but the same pawn structure anyway. If Semi-Slav = Triangle Slav + Nf6 then the difference is not tremendous.

Based on your skill level, any variation of the Slav would be amongst the worst possible things for you to study, Maybe not hanging your queen on move 9, for instance, would be more productive.

The truth is that openings just don't matter - what will memorizing a few moves (that depend on the opponent playing into those variations in the first place) do for you?

Oh snap! I think this would be good for you to learn:

https://www.youtube.com/watch?v=Bgs2Vrr6OAY

Good luck! 

And for good measure:

https://www.youtube.com/playlist?list=PL-qLOQ-OEls4I3rqV_pQje1olPqu1VglD

This is wrong for terminological reasons. The Triangle Slav is considered to consist of the lines involving dxc4 (i.e. the Noteboom Variation), and if you don't take on c4 in that position and instead play Nf6, you are in a Semi-Slav. The Semi-Slav pawn structure can be considered a triangle shape, but it's not considered to be a Triangle Slav if you don't play the Noteboom. All literature advocating the Triangle Slav is referring to dxc4.

And the difference between those variations is absolutely "tremendous", although I will say they are both extremely sharp, and both give white the center in exchange for something else. But that's just a factor of taking on c4, which happens later in the Semi-Slav.

Main line of Noteboom:

One main line of Semi-Slav

Dpnorman: U, following IM poucin, exaggerate about the rigidity of (relatively recent) chess terminology. When black play dxc4 the triangle is broken and there is no sense to call it "Triangle Slav". It becomes a line of QGA.

Also, Nf6 is a reversible move. If someone (brokes the pawn triangle d5-c6-e6 and) plays Ng8-->Nf6-->Nd5, it's Semi-Slav. Now, if it's Ng8-->Ne7-->Nd5 U'll say "tremendous difference!", it's now "Triangle Slav!". That's totally ridiculous.

Intermediatedinoz: It's still quite theoretical KIA.

I'm trying to help you but you're kind of refusing to understand. You wrote that if and when black plays dxc4 it becomes a QGA...that is highly incorrect.

The Triangle Slav is not every single position where there are pawns on e6-c6-d5. It's that specific line, and black immediately plays dxc4. Playing dxc4 does not make it a QGA...it's totally different from a QGA.

And black always takes on c4 eventually in the Semi-Slav. If he doesn't, he just becomes structurally worse after white plays e4 and runs him over. Does taking on c4 make it a QGA? In your eyes, probably, but nope

I'm starting to suspect that you're trolling because I don't think a player of your rating could misunderstand this so badly

Dpnorman: First of all, help yourself. It's U who don't wanna get my viewpoint.

Everything, that can be obtained from the following stem position

by a sequence of legal moves, can be called QGA, by definition.

What opening(s) do you recommend against 1 d4 for players without a high rating?

Personally, I'm awful with Black, but I went to the Slav because I didn't handle my Queen's (Bad) Bishop well after it gets boxed in with ...e6 and I've had some success with the Caro-Kann so I like the idea of getting my Bad B outside my Pawn Chain where it's in a good position to support a Q-side attack.

Well, for players who hang material en prise, no opening. These players just need to play a lot and focus on not dropping things left and right. I'd recommend they just learn the *general opening principles*, and maybe know that 1...d5 and 1...Nf6 are options. 

Their opponents will also be hanging stuff everywhere, so it won't matter - I was talking about very very low rated players.

Also, for the probelm you're talking about, the correct solution is to play ...b6, ...Bb7, and ...c5, and sometimes ...a6 + ...b5. This is the typical way of releasing the bad light squared bishop in slav lines.

A recent game I saw: Larsen vs. Spassky, where Spassky shows how you play the triangle formation. 

So based on what you've just told me...do you think that the following is a Queen's Gambit Accepted just because black takes on c4?

Sure, 2...dxc4 or 4...dxc4 it's still QGA as a legal successor of the basic QGA position.