ECO E60–E99 · Level: Intermediate · Also known as: King's Indian, KID, Şah Hint Savunması
The King's Indian lets White build a big centre first, then counter-attacks with the g7 bishop and the ...e5 and ...f5 pawn breaks. It is a dynamic fighting defence.
Grünfeld Defence — In the Grünfeld, Black allows White a big pawn centre and then attacks it with the g7 bishop, ...c5 and pieces.
Pirc Defence — The Pirc Defence cedes the centre to White, fianchettoes the bishop on g7 and attacks the centre later.
Nimzo-Indian Defence — The Nimzo-Indian pins the c3 knight with ...Bb4 to control e4, often trading bishop for knight to damage White's pawn structure.
London System — The London System sets up the same solid structure (d4, Bf4, e3, c3, Nf3, Nbd2) almost regardless of Black's moves.