Benoni Defense: King's Indian System

1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 g6

ECO A56

The Benoni Defense: King's Indian System is a chess opening line in the Benoni Defense complex, reached after 1.d4 Nf6 2.c4 c5 3.d5 e5 4.Nc3 d6 5.e4 g6.

It is catalogued under code A56 in the Encyclopaedia of Chess Openings (ECO).

The defining move g6 is chosen by Black on move 5.

The Benoni Defense: King's Indian System is a line of the Benoni Defense. The Benoni Defense is a chess opening that begins 1.d4 Nf6 2.c4 c5, after which White almost always advances 3.d5. Read the complete Benoni Defense guide: what it is, how to reach it, its main variations, how to play against it, and its history.

More ECO A56 openings

• Grünfeld Defense — 1.d4
• Vulture Defense — 1.d4

Study this line with a grandmaster

This position is covered in the Benko Gambit 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.