I played d4 for a brief period of my chess life. I used the Torre Attack, so the positions that occurred were all very similar to one another.
1.d4 ... variations. Which and why?

I used to play the grunfeld a lot...gave it up, mainly becuase of the exchange sac line, its jsut too hard.
The line you gave with Bg5 tends to become pretty lively just like the first variation you showed, and is fun for black.
If you really want to annoy black you should jsut play e3, or maybe Bf4. (although with bf4 be warned of some trickly lines where black is happy to sacrifice his c7 pawn.)
But I personally would prefer the saemish against the KID, and 3. f3 against the grunfeld. A little more spicey than the lines you gave, but still in full control.
Intresting about the Grunfeld. So e3 or Bf4 are much calmer lines against the Grunfeld or what are the calmer alternatives? I like my bishops outside the pawn chain and I like good structures, so I'm not sure about e3 but Bf4 seems intresting. Btw which exchange sac line is it you didn't like as black?
I think I'm satisfied with the bayonett attack in KID. I get the feeling that black gets squeezed to death fast if he doesn't know his theory well (and I get the feeling that alot of KID players are not that booked up except for the 6 first moves they put out against everything they face).

I played d4 for a brief period of my chess life. I used the Torre Attack, so the positions that occurred were all very similar to one another.
I thought of playing something like the torre but it just seemed like a totally different opening compared to the classical stuff I've played.

The exchange sac line i mentioned is as follows:
Ah yes I've seen that line. It is quite scary for black isn't it.
I used to play the grunfeld a lot...gave it up, mainly becuase of the exchange sac line, its jsut too hard.
The line you gave with Bg5 tends to become pretty lively just like the first variation you showed, and is fun for black.
If you really want to annoy black you should jsut play e3, or maybe Bf4. (although with bf4 be warned of some trickly lines where black is happy to sacrifice his c7 pawn.)
But I personally would prefer the saemish against the KID, and 3. f3 against the grunfeld. A little more spicey than the lines you gave, but still in full control.
Intresting about the Grunfeld. So e3 or Bf4 are much calmer lines against the Grunfeld or what are the calmer alternatives? I like my bishops outside the pawn chain and I like good structures, so I'm not sure about e3 but Bf4 seems intresting. Btw which exchange sac line is it you didn't like as black?
I think I'm satisfied with the bayonett attack in KID. I get the feeling that black gets squeezed to death fast if he doesn't know his theory well (and I get the feeling that alot of KID players are not that booked up except for the 6 first moves they put out against everything they face).
I agree. The Bayonette is a nice thematic way for white to proceed. If black slips, he is squeezed on the queenside which is what every KID Player (including me) has nightmares about. But there are lots of good lines against the KID leading to dynamic equality (whatever that means in this dynamic opening).

What I did was, download all games of Kramnik, build an opening tree from that, and play the lines that are played most or were most successfull. That resulted in a pretty consistent and solid d4 repertoire as white.

What I did was, download all games of Kramnik, build an opening tree from that, and play the lines that are played most or were most successfull. That resulted in a pretty consistent and solid d4 repertoire as white.
I could never do it that way, I pick an opening variation that I like and then I look for top players who played it, not the other way around.

As an enthusiastic student of the Dutch Defense I think I see a hole in your repertoire.
Hehe, agreed. I haven't quite decided on that yet. I've played the dutch myself and I'm thinking of using an anti-dutch system maybe or the one Cox suggests (and even Kindermann if I remember it correctly).

What I did was, download all games of Kramnik, build an opening tree from that, and play the lines that are played most or were most successfull. That resulted in a pretty consistent and solid d4 repertoire as white.
I've tried this with karpov for example but he just doesn't play the same stuff all the time. Not only that; Sometimes I have no clue why a move is better then another one. With a book I get the reasons for the moves aswell. Problem is that every line one might be intrested in might not have a book or is spread out on several.

The Cox book is excellent. Stick with it.
Yeah it's pretty good but I still would like a more detailed reasons behind moves and opening lines like in James Vigus - Play the Slav or in Jovanka Houskas - Play the Caro-Kann. John Cox sometimes just concludes "All GMs say this line is the best, so that's what I say" instead of explaining or trying to explain the idea why it is better then something else.
I'm wondering how others have built up their 1. d4 repetoire. I found it hard to make it consistent (the way pieces go and pawn structures) unlike the slav defense and caro-kann which are alot more consistent in the positions that arrise.
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GRUNFELD DEFENSE
I found that the repetoire offered by John Cox in his book "1. d4 A Reliable Repetoire for the Improving Player" seemed reasonable (all lines below except this one is from that book), except the Grunfeld lines.
This line is a bit too open for my taste so I found an alternative: Pallisers "Play 1.d4". The Grunfeld line in there:
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KING'S INDIAN DEFENSE
Bayonett Attack seems effective:
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NIMZO-INDIAN
Looks like a solid way to respond.
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BENONI
I always thought this to be quite good for white because it totally cramps black.
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QUEENS GAMBIT DECLINED
A good old minority attack. I'm used to this type of structure from the caro-kann exchange when I play black.
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QUEENS GAMBIT ACCEPTED
Not sure what to think of this one but it looks reasonable:
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SLAV
Main line stuff because I'm used to playing this from the black side aswell:
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SEMI-SLAV
Pretty sharp but I like white better then black here eventhough it is an equal position probably:
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Any thoughts on these openings/lines? How have you built your opening repetoire around 1.d4? Please share.