King's Indian Defense: Petrosian Variation, Stein Defense

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5

ECO E92

The King's Indian Defense: Petrosian Variation, Stein Defense 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.d5 a5.

It is catalogued under code E92 in the Encyclopaedia of Chess Openings (ECO).

The defining move a5 is chosen by Black on move 7.

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.