In Chess what is the Queens or Kings Indian, and why might it be useful?
At a high level, an "Indian" in Chess is just advancing the pawn which is in front of a knight by one square.
King or Queen indicates which side the advanced pawn is on. This move will usually be followed by the fianchetto of the bishop nearest the pawn. This puts the bishop in front of the knight and allows him to control one of the long diagonals on the board from a safe location.
Two common openings using this are:
- The King's Indian Attack, usually done in response to the French defense. A famous example is from 1967. Bobby Fisher against Lhamsuren Myagmarsuren.
- The Queen's Indian Defense starts like this 1.d4 Nf6 2.c4 e6 3.Nf3 b6
The King's Indian is a hypermodern opening, where Black deliberately allows White control of the centre with his pawns, with the view to subsequently challenging it with the moves ...e5 or ...c5. The Queen's Indian Defense, also a hypermodern opening, is defined by the moves 1. d4 Nf6 2. c4 e6 3. Nf3 b6 The move 3...b6 increases Black's control over the central light squares e4 and d5 by preparing to fianchetto the queen's bishop, with the opening deriving its name from this manoeuvre. As in the other Indian defenses, Black attempts to control the center with their pieces, instead of occupying it with their pawns in classical style.