kylemeister wrote on 05/10/14 at 16:52:07:
I think that's overstating just how "normal" Black's play is in the Petrosian -- e.g. playing for an early ...Nc5 sounds like a good way to be worse, and the other knight often goes to h7 ...
Well White creates the absolutely normal, d5-pawn chain, closed King's Indian structure at the earliest opportunity and his pieces are all on normal squares, i.e. Nf3, Nc3, and Be2. And these lines seem to all feature very normal King's Indian moves, knights going to c5, h5, and f4, playing for ...f5, etc. I mean there's more to the Petrosian than just this, but:
Of course either side can deviate, but knowing how to play the "d5 Pawn Chain" structures should be a King's Indian player's bread and butter, right?
We might all have differing ideas of what normal is, but this all just seems like regular, closed chess to me, that can be played by feel and doesn't need in depth theoretical preparation from either side. The types of positions arise in many openings (old Indian, some Bogo-Indian with the dark squared bishops exchanged, even some 1.e4 e5) and seem about as normal to me as a Scheveningen structure might to a 1.e4 player, or a Carlsbad or IQP structure to someone else.