Why isn't this opening played more often? Can an experienced player answer?

Its essentially 1. Nf3 and after 1... d5 white fianchetto's his queenside bishop and aims to control the e5 square. Here's a sample of what it looks like, I'm still experimenting with it, and will make more in depth post about is later with the intent of it being educational. But why out of 400,000 games on chessgames.com this has only been used in 400 recorded games? Nimzowitch used it very successfully in setups that ressembled queen's indian games where white is up a move. It has yielded me a lot of success without studying a single book on it.  It often catches opponents by surprise  too, although its not the hardest opening to equalize against. But its great if one's strength is positional play. Why isn't it more popular?

I'm probably not the best one to answer your post, because my opening theory isn't all that strong. However I'll risk an opinion. I think this opening looks solid. Maybe the drawback is that it may be a little "passive"; seing as how black has lots of options to play. Another thing against queenside fianchetos maybe that the b3 pawn blocks the d1-a4 diagonal for the queen; and that diagonal is specially important once you push c4. Nonetheless, it IS a positional opening and it seemes to put a lot of pressure on black's kingside castle; which is the way black will castle 90% of the time.

     I'll have to try this one to see how it works out.

You're right about it being passive. I analyzed it with fritz and found that about four moves in the position is exactly equal. With an e4 opening four moves in it can be around .5 in white's favor. So, it isn't forcing, but if playing a weak positional player, white can often get a pawn majority in the middle and march up the board. So yeah, give it a try. I like it because although its not forcing, its pretty easy to use with both colors and has taught me some pretty important lessons so far.

It looks solid.  It reminds me of certain lines of the Sicilian Defense, only the Queen's bishop isn't usually fianchettoed (a nice way of solving the problem of how to develop it).  However, as black, I would play 2. ...c5, 3. ...Nc6, 4. ...e6, 5. ...Nf6 for as broad a share of the center as possible.  I would like to see how these moves would affect white's development.

I believe Bent Larsen and Aron Nimzowitch both played this opening well, and I think it is named for the both of them as the larsen nimzo attack I could be wrong but I dont think I am. I belive Larsen did well with it for awhile in the 60's and 70's.On why it isnt played I  have to blame the computer era finding the flaws in it
isnt so hard when you have databases an analysis bots doing all the work for you. it is not even a game of minds any more it is becoming a game of silicon. I do not like the lameness in draws because computers cant beat another computer. they are not masters anymore just the same type of people that could beat you in the arcades earlier in life because they found the bugs and flaws in the computer and use cheat codes to get an easily passed game. I t is a waste of our time and theirs as well because it didnt come from their mind it came from a bots mind. In essence they are an extention of their computer, that and nothing more.

I have to agree with the other posters above me here. The opening appears solid enough, but is certainly not very aggressive. On the positive side, it is very flexible and could lead to a great deal of original Chess. This is good if you want to take your opponent out of book early and play an "honest game." The down side is that Black is allowed to pick his plan with White having little-to-nothing to say about it. This is of course consistent with Nimzowitch's whole hyper-modern approach, but none of us are Nimzowitch (or Larsen for that matter!).

grim reaper, I'm not so sure how computers have made openings like this useless or exposed their flaws. I versed fritz against itself a couple of times using this one and it isn't like white loses everytime from some flaw. Agent 86, the thing is, no matter what white picks black has a huge disposal of tools and defenses. Think of e4! Caro-khan, french, epine dorsal, sicilain, 1...Nf6, etc etc. This is no different. Hrolf suggested a queen's gambit type set up. I'll show you how to tackle this as white:

 

 

 

 

 

 

 

It's daunting, and my king died a good five times before I learned how to tackle such a strong center. The key is a d4 break, opposed to the c4 breaks in the other setups.

 

If anyone is interested in this opening, please give me a message or leave a note. The opening is a lot of fun and a good way to throw opponents off who have never encountered anything like it. If we had five people with chess engines and a little creativity, we could divide up and analyze each of black's setups and then swap lines. 

Hhmm well looks kinda what I play with the birds and I enjoy it. The only difference is that the pawn on f4 is attacking e5 as well.

The bird seems to expose white's king in some lines, where as this opening keeps white's king very safe. The f4 is unnessecary because white already has excellent control of e5 anyway.  Often I reinforce that control with f4 after the knight on f3 moves. I considered using the bird, but I like the solid defensive style of this one. It seems safer. F4 does prevent black from playing d6 then e5, which is a whole other approach white has to be ready for with this one. after 1..d6 though, 2. e5 should give white a strong opening though.

are u looking for .... an experienced player!?!?

here i am!! :P

i agree with omicron [1st comment]

there are some players who like defending with closed game for them in the opening and counter atack in the middle game . 

+why this opening reminds me hipo's opening???  :S

After 1.Nf3 d5 2.b3 c5 think it is more accurate to play 3.e3 so can respond to 3...f6  4.d4. After 3.Bb2 f6 can find yourself on wrong end of a Petrosian v Fischer game, which was not a phleasant experience for white.

               Finding 1.Nf3 followed by b3 very popular in Denmark where they like following their Nimzo, and Larsen. When playing all out for win play 1.Nf3 g6 heading for an agressive english with e5, and f5 if they don't want to play an KID. This gives them something to think about. Normally would play 1.Nf3 d5 2.b3 Bg4 which is very solid for both sides. White can play Queen's Indian moves.

Bye John S

Let's see if what you say is true Gonnosuke. I just looked up 1. Nf3 d5 2. b5 on chessgames.com and found that overall white wins 36.3% of the time, draws 33.8% and loses 29.9%. This must opening must confer some advantage if white wins 7% more of the time. But searching one move deeper is interesting though.  The following charts lists the move, the number of games in the database, and the win percentages.