Facing the Catalan: A Repertoire for Black
The Bb4+ Approach — Active Play from Move Four
The Catalan has long been one of White's most reliable weapons at the highest level: a quiet setup that accumulates small advantages, sidesteps sharp theory, and exploits Black's structural concessions over a long game. Yet elite practice over the past decade has quietly shifted the balance. Players like Fabiano Caruana and Vincent Keymer have demonstrated that 4...Bb4+ — the early check that defines this repertoire — is not a minor nuance but a genuine strategic weapon. By provoking White's pieces before the pawn structure fully crystallized, Black dictates the terms of the game rather than reacting to White's slow buildup. This course, built around that single provocative move, packages the resulting complex of ideas into a coherent, battle-tested system.
What the Course Covers
Facing the Catalan: A Repertoire for Black is authored by GMs Szymon Gumularz and Pier Luigi Basso, two players whose practical experience with these positions runs deep. Rather than offering a narrow path through a single main line, the course maps the full landscape that arises after 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Bb4+ — from White's most critical tries (the Bd2 complex with the thematic 10...h6, the centerpiece of the repertoire covered in Chapters 1 and 2, alongside the 10...a4 alternative in Chapter 3) to the alternative 5.Nbd2 complex (Chapters 8–10) and everything in between. The 10...h6 move is the theoretical centerpiece of the repertoire: a flexible move that prepares ...g5, prevents Ng5 ideas, and signals to White that Black is not content to wait. The authors justify this choice not as a memorized refinement but as a practical philosophy — understanding the resulting structures is more durable than knowing the next theoretical update.
The variation map below shows the main branching structure of the repertoire:
1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Bb4+
- 5.Nbd2 dxc4
- 6.Bg2 b5 7.a3 Be7 → Chapter 8
- 6.a3 Bxd2+ 7.Bxd2 → Chapter 9
- 6.Qc2 b5 (and 6.Qa4+) → Chapter 10
- 5.Bd2 Be7 6.Bg2 O-O 7.O-O c6
- 8.Bf4 (and 9.a4, 9.Rc1) → Chapter 4
- 8.b3 Nbd7 (Maghsoodloo Variation) → Chapter 5
- 8.Nc3 a5 → Chapter 7
- 8.Qc2 Nbd7 9.Bf4 a5 10.h4 → Chapter 6
- 8.Qc2 Nbd7 9.Bf4 a5 10.Rd1 h6
- Sidelines after 10...h6 → Chapter 2
- 11.Nc3 / 11.Ne5 (main lines) → Chapter 1
- 10...a4 (alternative) → Chapter 3
Course Structure and Features
- 10 chapters
- 20 test positions
- Memory Booster
- To Go Version of every chapter
- Video instruction
- Multilingual PGN availability (English, German, French, Spanish)
The material is divided across 10 chapters, progressing from the most critical main lines (1–3) through the positional sidelines (4–7) and into the 5.Nbd2 complex (8–10).
The Authors and Their Work
Gumularz and Basso have developed a productive working relationship in building Black repertoires. Their collaboration extends to Queen's Gambit Declined for Black — The Concept with 4...Nbd7 and a two-part series on the Nimzo-Indian Defence: Part 1 and Part 2. All three courses share the same analytical philosophy: concrete preparation grounded in principled understanding, with each system given the full treatment it deserves rather than a surface-level repertoire response.
If the Bb4+ approach against the Catalan has been on your list to explore seriously, this course delivers everything you need.