158. Orthodox Opening in King’s Indian Defence

Orthodox Opening Sub Group (E15.072.KI – E15.098.KI) begins with 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.0-0, the classical setup from which the King’s Indian branches into some of its most legendary lines. Both sides complete development and prepare for a full-scale clash—White on the queenside, Black on the kingside.

This MICOS Sub Group covers key continuations like the Mar del Plata, Petrosian and Gligoric Variations. These lines test deep opening understanding, positional balance and precise timing for pawn breaks like …f5 or c5.

Perfect for players who want a mainline fight where both sides are “all in”. The Orthodox is not a sideline—it’s the battleground where world championships are won or lost.

Balanced, legendary and endlessly deep—the Orthodox is the soul of the King’s Indian.

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