← Orangutan Opening

Practice: Main Line (1...e5)

Black challenges the centre directly

Black immediately captures the b4 pawn with the bishop. White wins the e5 pawn back and develops naturally, leading to balanced but offbeat positions.

1. b4 e5
2. Bb2 Bxb4
3. Bxe5 Nf6
4. Nf3 d6
5. Bb2 Nbd7
6. e3 Ne4
7. Be2 O-O
8. O-O Re8
♟

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Key strategic ideas

  • White aims to control the b2-bishop long diagonal and expand on the queenside with b4-b5 or c4.
  • Black can challenge the b4 pawn immediately with ...e5 or ...c5, or build a solid centre with ...d5.
  • The early b4 can leave White queenside weakened if not followed up correctly, making it a risky but fun choice.

Common mistakes & traps

  • A common trap: 1.b4 e5 2.Bb2 f6?? 3.Bxe5! wins a pawn because the f6 pawn blocks the king's defence of e5.
  • If Black plays 1...e5 2.Bb2 d6?? 3.Bxd6! wins a pawn — the d6 pawn is undefended.

Pawn structure notes

The b4 pawn gives White a queenside space advantage but can become a target. The centre often remains fluid, with White playing e3 and c4 to build a broad pawn front.

Tips

  • Black's ...Bxb4 is natural but gives White time to win the e5 pawn
  • White's bishop on b2 exerts long-range pressure after the exchange
  • The resulting positions are similar to a reversed Sicilian but with extra queenside space

About this line

This line is rated intermediate. Practice it repeatedly until you can play the entire sequence without thinking. The in-app trainer tracks your perfect streaks and celebrates milestones.