Semi-Slav Triangle System+Noteboom

Anybody actively play this in tournaments?

At the club level it seems to net a pawn right out of the opening since white usually doesn't know the theory very well. Though white seems to get a lot of middlegame initiative for it.

Here is a blitz game I just played. Ignore the end as that is just a time scramble which I ended up winning.I had 2 passers dominating the board.

It's games like this that make me realize just how insufficient black's passed pawns are for stimying white's attack in the noteboom. If he had been a little smarter, he might have crushed you.

Its true playing the Noteboom requires pretty good defense but actually the line he ended up playing turns out not to be dangerous for black. He could try to go d6/e5 which is what I expected during the game but objectively black is totally fine and doing better according to Scherbekov and the engines.

I used to play it, but It gets tiring defending for 20 moves every game against attacks that pretty much play themselves automatically. 

My method is to play e3 (as white) when the pawns are on e6/c6. This way black can't go pawn grabbing. I also start with 3. Nf3 rather than 3. Nc3. So in your game I would have played 4. e3.

The dark square bishop is trapped, but then so is blacks, and you can exchange it with b3 and Ba3

The Marshall Gambit is why I don't play it, 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4!

Yea but you can *try* to avoid it by playing c6 first and hope that white does not play 3.Nc3. I think that is the only perk of the 3.Nc3 move order in the Slav is that white can play the Marshall gambit.

You do have to deal with the Exchange slav but I don't mind that....

@Simpo

Against e3 I go for the Stonewall setup as advocated in the Everyman triangle book.

But after 1. d4 d5 2. c4 c6 3. Nf3 e6 White also has many different ideas : 4. g3, 4. Qc2, 4. Qb3...

But then you commit to the Closed Catalan or the Open Catalan with 5...c6, neither of which do I play.

1.d4 d5 2.c4 c6 3.Nf3 e6 4.g3

With the 2...e6 move order:

1.d4 d5 2.c4 e6 3.Nc3 e6 4.Nf3 dxc4 (or 4.e4 - the issue I have)

1.d4 d5 2.c4 e6 3.Nf3 Nf6! 4.g3 dxc4 5.Bg2 Bb4+ 6.Bd2 a5!

Actually, at higher levels (I'm 2100 OTB), 1.d4 d5 2.c4 c6 3.Nc3 is rare.  Most play 3.Nf3.  The only ones that play 3.Nc3 against 2...c6 are those that intend to play 4.e3 and hold off on Nf3.

@TheGrind

Yeah, thats effective as white would prefer a fianchetto against a stonewall. I don't often do well against this setup (from this move order). Maybe I need to switch which knight comes out first against the slav so that I can go for an f3 Nge2 plan

Yea although switching which knight comes out first does give black more options with 3.Nc3 dxc4 or 3.Nc3 e5!? the winawer countergambit. I'm actually thinking of learning the Winawer countergambit as it would allow me to completely avoid the Marshall gambit. But for now I just continue as normal cause by playing the Winawer countergambit I would decrease the number of noteboom games I get.