150 ...b5 Setup

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Be3 Bg7 5.Qd2 c6 6.f3 b5

Black starts queenside expansion early against White's 150-style attacking setup. White usually seeks opposite-side castling and direct kingside pressure.

ECO Code

B08-B09

Difficulty

Advanced

Style

Dynamic/Counterattacking

Key Theme

Opposite-wing race

Practical Plans

White Plan

0-0-0, h4, Bh6

White pushes kingside play quickly before Black's queenside expansion gains speed.

Black Plan

...Nbd7, ...Bb7, ...Qa5

Black supports queenside play and applies pressure against White's king.

Key Point

Attack race timing

Tempo accuracy matters because both sides attack in opposite directions.

Common Pitfalls

For White: Slow castling can leave your king in the center during counterplay.

For Black: Queenside pawn pushes without support can become targets.

Dynamic 150 Counterplay

This line is practical for players who thrive in opposite-wing attacking structures.

Back to Pirc Defense Explore Bayonet g4 Push