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What to do as a Benoni/KID/Benko player VS quiet 1 d4 lines???

Let’s say white plays c2-c3, castles short, maybe got bishop outside the pawn chain (London Bc1-f4) or even leaves it at home on c1 (Colle System), what do you guys do as black? I find myself looking for a plan, not a good idea in bullet and blitz... as there is no white c4 pawn to hit it with ...b5, and there is no long castling by white to pawn storm the white queenside, what do?

Thanks!!
benoni/benko is one group, KID is another group.
the first decision happens on move 2 (c5|g6) and then uh, see the database or something? assuming 2..c5 isn't met by d5 or c4 then black always can go for an e6+b6 setup, and king's indian players can always do the usual-ish stuff and play for e5.. but the specifics vary.
In all the variations that's mentioned, I think black can reach some comfortable positions without necessarily entering hard theoretical lines.
There's not much that can be done other than to out-chess your opponent in the middle and endgame.
As black player, quiet positions are nothing to fear.
Might be helpful if there were some positions to look at.
I‘ll start with ...g6, then d6+e5 is easier to achieve. No Nf6 in the way.
It's actually a difficult question. Your repertoire has to accomodate for those allegedly minor lines which may not be minor at all. Some have attracted GM attention over the years, which means that they are relevant for amateur players even long after such lines have gone out of fashion.

1) Trompovsky : would you face it empty-handed ? I wouldn't dare to play Nf6 if I hadn't at least a line against it.
2) Richter-Veresov : look up until move 6, there are few branches, what little effort is invested is worth it.
3) Blackmar-Diemer : with 1...Nf6, it's easy, you can play 3...Nxe4 instead of 3...dxe4.
4) Colle : you play c5 first, maybe even Nc6 and then only d5 without burrying your light-square bishop too early. Not much here.
5) Zukertort : the fight on the long dark square diagonal should be your bread and butter in the long run, no need to worry.
6) reverse Tarrasch : White takes on an isolani and Black has to play like White against the Tarrasch defence. You have to learn a solid line here (if you're a 1.d4 player, you probably know one already).
7) London with an early Nf3 : know the "refutation" (i.e. the line that leaves Black with a bigger edge than White's normal first-move advantage ; Kamsky-So is probably the best try as White, and it is not sufficient unless you're a 2700+ GM and the drawing margin is extremely large)
8) London without an early Nf3 : again you need to learn a line here as if it were your standard Benoni/Benko/...
9) Torre : you're not playing e6, so the Torre is just a bad Trompovsky against you, that's your bonus for playing Nf6/c5.

Bottom line : you need to learn 3 lines (Trompovsky, reverse Tarrasch, contemporary London). Against each of them, multiple solutions exist. I'm reluctant to quote some of them because I would forget some others that may be more suited for your style, but take this as an open door (you don't need to punch through it :D).
Trompovsky : 1.d4 Nf6 2.Bg5 Ne4 3.Bh4 c5 ; 3.Bf4 d5 (c5 is more risky here) ; 3.h4 c5.
Reverse Tarrasch : b6/Bb7 or Bg4/Nb4/Nd5 or wait until you can play Be6 and occupy d5.
London : 1.d4 Nf6 2.Bf4 c5 3.c3 Nc6 4.e3 d5 5.Nd2 ; here some play 5...e6, some prefer to keep the option of Bf5.
@Kusokosla good question, I need answers as well. I play both the KID and the Benko/Benoni, and I, too, struggle with pawn structures where white doesn't play c4.

@Rise in the KID, black can play ...c5 and play for a Benoni-like position, instead of the ...e5 plan. This ends up looking a lot like the Benoni.

@A-Cielbleu could you elaborate please?

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