The Nbd2 Solution: Felix Blohberger's Anti-Grünfeld and Anti-King's Indian
When GM Felix Blohberger began searching for a practical weapon against the Grünfeld and King's Indian Defense, he wasn't looking to compete with mainline theory. Instead, he identified a subtle move order shift that changes the entire character of the position: 1.d4 Nf6 2.Nf3 g6 3.Nbd2. By developing the knight to d2 rather than c3, White sidesteps decades of established theory while maintaining concrete advantages in the resulting structures.
The key insight lies in flexibility. After 3.Nbd2, Black cannot force the typical Grünfeld exchange with ...d5 followed by ...Nxd5 and …Nxc3, since the knight on d2 denies Black the crucial exchange that defines that opening. Against King's Indian setups with 3...Bg7, White can comfortably play 4.e4, reaching a Pirc-type of position with this move order. When Black tries 3...c5 hoping for a Benoni, 4.dxc5 Qa5 5.a3 leads to positions where White's space advantage and development tempo create lasting pressure.
A Modern Approach to Classical Problems
In 1.d4 Nf6 2.Nf3 g6 3.Nbd2 - According to Felix Blohberger, created in collaboration with GM Pier Luigi Basso, Blohberger builds on recent high-level practice—notably games by Indian GM Narayanan—to present 4.c4 as White's main weapon after 3...d5. This move, which initially appears to transpose into familiar Grünfeld waters, actually maintains the critical difference: the knight on d2 cannot be exchanged. After 4...c5 5.dxc5 Bg7 6.e3 Nc6 7.Be2, White's task becomes concrete rather than theoretical: maintain the c5-pawn, complete development, and leverage the space advantage.
The course structure reflects this practical philosophy. Rather than memorizing variations move by move, Blohberger emphasizes understanding the typical plans and piece placements that arise from this move order. Against 3...Bg7 4.e4 d6 5.Bd3, White deliberately keeps the position stable, preventing Black's typical kingside expansion while maintaining better central control. Against 3...c5 4.dxc5 Qa5, the seemingly awkward queen sortie costs just enough time for White to consolidate with a3, b4, and Bb2, reaching positions where Black must navigate carefully to achieve equality.
Course Structure
- 8 Chapters covering all Black responses
- 20 test positions to verify understanding
- Memory Booster for rapid review
- To Go Version of every chapter for quick study
- Video instruction throughout
- Multilingual PGN availability (English, German, French, Spanish)
Variation Map
After 1.d4 Nf6 2.Nf3 g6 3.Nbd2:
3...d5 (Chapters 6-8: Main Line)
- 4.c4 c5 5.dxc5 Bg7 6.e3 Nc6 7.Be2 — White maintains c5-pawn and spatial edge
- 4.c4 Bg7 5.cxd5 Qxd5 6.e3 — Improved Grünfeld structure for White
- 4.c4 c6 5.e3 Bg7 6.Be2 O-O 7.O-O — Queenside expansion with b3-Bb2 or b4
3...Bg7 (Chapters 2-4: King's Indian Structures)
- 4.e4 d6 5.Bd3 O-O 6.O-O — Symmetrical center, White maintains space
- 4.e4 O-O 5.Bd3 — Ensures focus on preferred structure
3...c5 (Chapter 5: Benoni Prevention)
- 4.dxc5 Qa5 5.a3 Qxc5 6.b4 Qc7 7.Bb2 Bg7 8.e3 — Tempo-based advantage against Black’s setup
Blohberger and Basso previously collaborated on Rook Endgames - Essential Knowledge for the Practical Player, demonstrating their shared commitment to practical, fundamentally sound chess education. This opening course follows the same philosophy: rather than promising tactical fireworks or quick wins, it offers a coherent system where positional understanding matters more than memorization.
The emphasis throughout remains on strategic clarity—understanding why pieces belong on certain squares, how to maintain structural advantages, and when to press for concrete gains. It's an approach that rewards chess understanding over opening preparation, making it particularly valuable for players who want their opening repertoire to serve their overall game rather than dominate it.