Is there a way to punish 1. d4 c6?

why? what is the plan behind d4 c6 f4?

just to avoid d5, black can't play it because then the b8 knight had no where to jump except for a6

can you please elaborate or atleast show it in a diagram ?

can't

d4 c6 f4 is an interesting try for the stonewall but black can get good play by repairing e5, with moves like d6, Nd7, e5

1.d4 c6 2.f4 d5 and I don’t see any problem for Black. Of course, Black can also delay d5 and play Nf6.

Perhaps 2. ...d5 isn't the best move for black, because it willingly accepts a passive position . All black has is Bf5 and the game is no better than even. After d4 c6 f4 I would play Nf6, d6, maybe g6 and Bg7 but would aim to play e5, for a more active game.

I think White could go for some sort of a pseudo-Catalan opening here with early g3. It'd be partially psychological, to get Black out of the familiar Slav and Caro-Kann waters.

So, basically, you'd play g3 with a timely c4. Then, after that, you can go for a b4-b5 maneuver with a combined attack on their c6 square and h1-a8 diagonal. Then, maybe Rb1, Qa4 and all that lovely stuff. It may not objectively be the best way to deal with this position, but I bet you'll take them out of their opening prep with those lines. And  the psychological part is that they're obviously fond of some pawn chain fortresses (c6-d5), so you'd really make a statement if you went to attack it. I went through a phase of meeting g3 and Bg2 in those positions with an e6-d5-c6 pawn chain, and it'd feel kind of disorienting when I ran into opponents who'd attack it straight up.

I'd also delay the c4 push and would make sure I castled kingside first, to deny them any quick Bb4 options. This way, Black has to sort of waste a move on Be7 or something of that kind.

Of course black can and should play d5 after 2.f4. He is a tempo down compared to the so called Stonewall Attack and still has a good position.

it's a rather weird way to transpose to the Modern Defence: Pseudo-Austrian Attack after d4 c6 f4 d6 e4 g6 Nc3 Bg7 Nf3 Bg4 Be3 Nd7 h3 Bxf3 Qxf3 Qa5 O-O-O Ngf6 g4 O-O-O Kb1 Kb8

As weird as it is you can also reach the Czech Defence of the Pirc with 1.d4 c6 2.e4 Nf6 3.Nc3 d6 which also has the potential to transpose to the Mainline Pirc : Sveshnikov-Jansa Attack and then to the Schlecter Pirc 

yo

Slav, caro transposition maybe? Or even modern defence? Idk

I play 1.d4 ...c6 2. c4.

2. e4 is just as good if you like playing against the Caro. After 2. ... d5, the main line is 3. Nd2 and anything else is a deviation from the Caro-Kann main line. In the main line, black should play 3. ...de and white has an edge. It's stronger than the Advance and white can no longer play the weird and frightening 2. Ne2 line, which hardly anyone knows.

2. Nf3 is fine but rather passive unless you're heading for a Slav. An interesting try, however, would be 2. Nc3, trying to play a Veresov-Richter Attack or that odd London variation.

thought I posted already... just play 2.e5 and transpose into the mieses gambit! I love it! I have 2:1 stats with it and stumbled on it BY ACCIDENT trying to play maroczy fantasy, but confused it with the french alapin diemer. when I saw my stats, i dropped all maroczy plans. it might be even MORE powerful from a 1.d4 move order

^^ It's probably ok in blitz but not for a real game.

2:1 in 10 minute

like I said... there's plenty of other anti-carokanns

1.e4 c6 2.Ne2.

puzzles are useless

The shockwave defense is the best