||A major Queen's Pawn Side Defence,
the Grünfeld is a popular "hypermodern" strategic variation of
the King's Indian where Black delays a
KB-fianchetto for a QP
attack on White's centre (move 3b, left).
Black plans to hammer all obstacles in the path of his Indian bishop so as
to increase its range on the dark central diagonal QR8-KR1 [a1-g8]
(move 7wb, right).
Introduced into tournament play by Austrian GM Ernst
Grünfeld in 1922, it is also useful as a means of avoiding White's