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Practice: Keres Defense

Early Bb4+

Paul Keres's approach: Black plays ...Bb4+ immediately, forcing White to block with Bd2 or Nc3, disrupting the Catalan setup.

1. c4 e6
2. Nf3 d5
3. g3 Nf6
4. Bg2 Be7
5. O-O c5
6. cxd5 Nxd5
7. Nc3 Nc6
♟

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Key strategic ideas

  • White starts with 1.c4, controlling d5 from the side. The opening is very flexible and can turn into many different types of positions.
  • A common plan is to fianchetto the king's bishop (g3 and Bg2). This puts quiet pressure on the centre and leads to slow, strategic play.
  • The English often leads to symmetrical pawn structures. Small advantages like a better bishop or control of d5 can decide the game.

Common mistakes & traps

  • After 1.c4 e5 2.Nc3 Nf6 3.g3 Bb4! pins the knight and threatens ...e4. This tricky line can catch White off guard.
  • The Four Knights line (1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.d4 exd4 5.Nxd4 Bb4 6.Bg5 h6 7.Bh5) requires Black to know the correct defence to avoid a bad position.

Pawn structure notes

White has c4 and d3 against Black's e5 and d6. The g3-Bg2 setup aims for long-term central pressure. The structure is flexible and often transposes into d4 or e4 openings.

Tips

  • The Neo-Catalan setup aims for a flexible kingside fianchetto
  • Develop with ...d5, ...e6, and ...Nf6 before committing the queenside
  • The c5 break is Black's main counterplay against the Catalan setup
  • Be ready to play ...b6 and ...Bb7 to activate the queenside bishop
  • This line rewards positional understanding over tactical tricks

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.