Fianchetto Subtleties

Isn't it mostly the Classical variation where the stereotypical "black on the kingside, white on the queenside" happens? In the Saemisch at least it's usually the other way around, g3 KIDs are just different, et cetera.

I think you should say "Classical KID" instead of "KID".

http://www.chessgames.com/perl/chessgame?gid=1081113

The "non-classical" lines exist so White can try to prevent the underlying principle of the fianchettoed bishop in the KID by throwing subtle tactics that will weaken Black's position in an endgame. And, Black MUST answer these otherwise Black gets into end game troubles. But, they like the Gruenfeld are part of the KID.

Sorry, I can't seem to get to your link right now but if that is the Samisch (That's how I learned it) Attack my preference for that line after 5f3 was O-O instead of e5 and to work the Queenside for if 6Be3 then Nc6 with an eventual c5. And if 6Bg5 Nc6 7Nge2 a6 8Qd2 Rb6 with an advantage by Black if White attacks kingside with h4.  (There was a homeless guy named Izzy Silly at Washington Square who worked out a really nifty line showing Black had a won game in that position. But I don't remember how it went.)  White's best move is to attack either the center or Queenside.

Mike

Chessguava wrote:

“If we are playing out of book and sheerly according to opening principles, then:

1) In general, is the fianchettoed bishop supposed to serve its center control function by attacking or protecting the center?

2) What principle(s) govern which bishop should be fianchettoed, or preferred?

3) What considerations, if any, would prompt interest for fianchettoing both bishops?”

AND Question 2 is what I'm answering. Oh, forgive my dalliance in the other answer regarding the Samisch.

Mike

I went over your links to the two Fischer games and the Korchnoi-Tal games.  I don't get your arguments.  More thematic for the KID is:

http://www.chessgames.com/perl/chessgame?gid=1008419

Annotations by Fischer.

And:

http://www.chessgames.com/perl/chessgame?gid=1032338

Where Black fianchettoes King side and launches a Queenside attack.  This game shows that White loses by ignoring principles while Black wins by following them:

http://www.chessgames.com/perl/chessgame?gid=1008397

After Black castles kingside, White develops a four pawns attack structure.  Fischer re-deploys his knight and pieces.  After taking care of the tactical threats, on move 7 to 12  Fischer threatens the weak White Queenside with the end game strategy to take advantage of his connected a and b pawns.  White re-deploys protecting the threatened Queenside but leaving his center weak.  Fischer takes advantage of this tactical lapse by attacking the center and ripping apart the protection around the king.  White might have been better with 13Rb1 instead but like me probably didn't see that after the dust cleared from the exchange after 24.Kf4 then Bh6 (mate!). 

And this game was part of the Candidates Match where Fischer went 6-0 against Larsen if I remember right:

http://www.chessgames.com/perl/chessgame?gid=1044711

Larsen begins with an English Opening and Fischer counters with a KID. Larsen adopts a three pawn formation with the threat on Black's Queenside while Fischer plays a Philidor pawn formation.  After 7O-O, Fischer threatens Queenside operations with a pawn storm.  Larsen counters with at 10.Rb1 and from moves 11 to 22 White answers Black's tactical threats on the Queenside.  The result is that Larsens heavy artillery is concentrated there but the mobility of his pieces is greatly diminished especially his Bishop.  Fischer takes shifts his attack to the Kingside.  Larsen defends.  Fischer finds a nice combination leading to mate (one that I would have missed). 

The Korchnoi-Tal game Black has Queenside operations from move 7 to 26.  Then both sides manuevering, attacking or defending the weakened Kingside. 

Hmmm....

So, the overall strategy in all of the games played was for Black to castle King side, make threats on the Queenside until the opposing King can be attacked.  That strategy sounds awfully Staunton like to me.

Mike