(t) Nimzowitsch Defence
Defense against d4 for a beginner?

I looked at this game. https://www.chess.com/game/live/87973156973
There is no problem with your opening. You lost because of tactical errors. Look again at move 15 as you review it.

ok, there are three basic responses to d4. they are Nf6, d5, and c5. if Nf6, learn the Old Indian. if d5, learn the Queens Gambit Declined. if c5, learn the Old Benoni. Each one of these is the basis for the more complicated defenses you can use later as your chess understanding evolves.
wth is this
Stuff you don't understand.
No, I do understand it; wth is c5 doing in main defense list, and why recommend the Old Indian lol
If you make a minimalistic offhand quip in response to a longer post, even if you don't actually get it, the lack of any explanation of what it is you don't get leaves readers of your quip to think it's just another dismissive effort by some on-line wiseguy to crap on something and disappear. Had you posted your last post instead, you may have received an actual response by the person who posted the thing you seemed to be mocking.
I don't understand why anyone would recommend the Old Indian either. That does need explaining, though not so much the other two.
Against d4, play either d6, d5, Nf6, c6, c5, e6, or f5. Every other move is crap, and only play g6, b6, and b5 if you’re going to play Bg7 next.
Against d4 , play either e6 , c5 , c6 , Nf6 , g6 , b6 , b5 , a6 , a5 , h6 or h5 everything else is garbage .
Why play a6, h6, or h5? They just waste moves and does not control the center in any way.

Queen's Gambit declined no question about it. Every beginner should learn principled chess
White does not always play 2.c4

hello, there are multiple reasons why I recommended what I did. although, I am uncertain if I can fully explain them all in such a short medium. So, I will do my best with the high points for each. I will start with the least controversial first. 1) if d4,d5 I suggested the QGD. it is solid and teaches classical chess principles. And will segue into multiple versions depending on what type of player the op is. example: Orthodox, Cambridge Springs, whatever, and even the Tarrasch defense. later, he can explore c6 instead of e6 to defend. and look at Slav or Semi Slav set ups. 2) if d4,Nf6 I recommended the old Indian because it will teach about a) why black can play e5 in a Indian structure b) to pay attention to the queen exchange on d8. how to protect against it or to allow it because black generally has a better endgame c) black will learn how difference between development of the Kings bishop on e7 as opposed to g7 3) if 1.d4,c5 i recommended the old Benoni because a) one needs to understand why black defends d6 in all Benoni structures whether we are talking the Modern, or the Benko, or even the Czech. b) black must understand just how powerful the move e4 is for white. I gave these as a way of learning fundamentals in three different major pawn structures and allowing the op the choice of what he wants to learn and play. I'm not going to tell him that he HAS TO PLAY D5. although, it would be a reasonable and productive place to start.

hello, there are multiple reasons why I recommended what I did. although, I am uncertain if I can fully explain them all in such a short medium. So, I will do my best with the high points for each. I will start with the least controversial first. 1) if d4,d5 I suggested the QGD. it is solid and teaches classical chess principles. And will segue into multiple versions depending on what type of player the op is. example: Orthodox, Cambridge Springs, whatever, and even the Tarrasch defense. later, he can explore c6 instead of e6 to defend. and look at Slav or Semi Slav set ups. 2) if d4,Nf6 I recommended the old Indian because it will teach about a) why black can play e5 in a Indian structure b) to pay attention to the queen exchange on d8. how to protect against it or to allow it because black generally has a better endgame c) black will learn how difference between development of the Kings bishop on e7 as opposed to g7 3) if 1.d4,c5 i recommended the old Benoni because a) one needs to understand why black defends d6 in all Benoni structures whether we are talking the Modern, or the Benko, or even the Czech. b) black must understand just how powerful the move e4 is for white. I gave these as a way of learning fundamentals in three different major pawn structures and allowing the op the choice of what he wants to learn and play. I'm not going to tell him that he HAS TO PLAY D5. although, it would be a reasonable and productive place to start.
Posting this right after I noted that 1.d4 d5 is not always followed by 2.c4 does not auger well for the rest of a very long post that needs paragraphs.

Against d4, play either d6, d5, Nf6, c6, c5, e6, or f5. Every other move is crap, and only play g6, b6, and b5 if you’re going to play Bg7 next.
Against d4 , play either e6 , c5 , c6 , Nf6 , g6 , b6 , b5 , a6 , a5 , h6 or h5 everything else is garbage .
Why play a6, h6, or h5? They just waste moves and does not control the center in any way.
a6 - move required for St George Defence transpositions , Semi-Slav transpositions , Slav transpositions or QGD transpositions . move also required to stop white LSB from coming to b5 or c4 . b5 as it will be taken , c4 as it can get kicked away with b5 instantly . move also avoids Londons . Gains space on queenside . Propels future queenside attacks/defences .
h6 - move required to stop white DSB from coming to g5 or f4 as g5 it will get taken and f4 it will be kicked away with g5 instantly . Gains space on kingside . Propels any future kingside attacks/defences . Avoids Londons .
h5 - gains space on kingside . Avoids Londons .
Against d4, play either d6, d5, Nf6, c6, c5, e6, or f5. Every other move is crap, and only play g6, b6, and b5 if you’re going to play Bg7 next.
Against d4 , play either e6 , c5 , c6 , Nf6 , g6 , b6 , b5 , a6 , a5 , h6 or h5 everything else is garbage .
Why play a6, h6, or h5? They just waste moves and does not control the center in any way.
a6 - move required for St George Defence transpositions , Semi-Slav transpositions , Slav transpositions or QGD transpositions . move also required to stop white LSB from coming to b5 or c4 . b5 as it will be taken , c4 as it can get kicked away with b5 instantly . move also avoids Londons . Gains space on queenside . Propels future queenside attacks/defences .
h6 - move required to stop white DSB from coming to g5 or f4 as g5 it will get taken and f4 it will be kicked away with g5 instantly . Gains space on kingside . Propels any future kingside attacks/defences . Avoids Londons .
h5 - gains space on kingside . Avoids Londons .
Yeah whell youre supposed to control the center, not kick the bishop out
And plus h5 doesnt even avoid londons
And plus you didn’t even include f5, that is one of the best responses
1.e6
Options :
(a) French Defence
(b) Bogo-Indian Defence
(c) Nimzo-Indian Defence
(d) Sicilian Defence
(e) St George Defence
(f) Semi-Slav Defence
(g) Slav Defence
(h) Old Benoni Defence
(i) Franco-Benoni Defence
(j) Ragozin Defence
(k) Queens Gambit Declined
(l) Horwitz Defence
(m) Kings Indian Attack by White
and many other options from there
Extra Benefit: No London as 1.d4 e6 2.Bf4 g5! and what its the Bishop doing getting kicked around and also 1.d4 e6 2.Nf3 Nf6 3.Bf4 c6 or 1.d4 e6 2.Nf3 c5
(n) Franco-Sicilian Defence
(o) Spielmann-Indian Defence
(p) Queens Pawn Opening
(q) Queens Indian Defence
(r) KIA: Yugoslav
(s) Catalan