The King's Indian Attack was a firm favourite of the legendary Bobby Fischer, and more recently it has been utilised with great success by world-class Grandmasters such as Alexander Morozevich. The renowned chess coach Mark Dvoretsky regards the King's Indian Attack as a perfect weapon on which to base an opening repertoire.
The King's Indian remains a hugely popular opening at all levels of chess - unsurprising given the attacking opportunities it offers. In many of the ultra-sharp main lines, both sides can fight for the initiative. White frequently wins the queenside battle but this often turns out to be a Pyrrhic victory as Black wins the war by checkmating on the kingside!