King's Indian Defense: Orthodox Variation, Positional Defense, Main Line

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Bf1 a5

ECO E96

The King's Indian Defense: Orthodox Variation, Positional Defense, Main Line is a chess opening line in the King's Indian Defense complex, reached after 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Bf1 a5.

It is catalogued under code E96 in the Encyclopaedia of Chess Openings (ECO).

The defining move a5 is chosen by Black on move 9.

Study this line with a grandmaster

This position is covered in the King's Indian Defense with ...e5 course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.