Opening family
King's Indian Attack Lines and Variations
The King's Indian Attack family contains 20 named lines in this opening book, spanning ECO A05 to A08. Use this page as the map, then open individual lines for exact move orders and diagrams.
How to study this family
White
The attacking side should develop with tempo and check whether every forcing move improves piece coordination.
Black
The defender should meet threats with development whenever possible, not with slow pawn moves that create new weaknesses.
Start with the shortest line, then branch to the variations that change the pawn structure or tactical target. Memorizing every branch before understanding the family plan is usually wasted work.
Main named lines
- A07 · King's Indian Attack
- A05 · King's Indian Attack
- A05 · King's Indian Attack: Spassky Variation
- A05 · King's Indian Attack: Symmetrical Defense
- A07 · King's Indian Attack: Double Fianchetto
- A07 · King's Indian Attack: Keres Variation
- A07 · King's Indian Attack: Omega-Delta Gambit
- A07 · King's Indian Attack: Sicilian Variation
- A05 · King's Indian Attack: Smyslov Variation
- A08 · King's Indian Attack: Sicilian Variation
- A07 · King's Indian Attack: Keres Variation
- A08 · King's Indian Attack: French Variation
- A07 · King's Indian Attack: Keres Variation
- A07 · King's Indian Attack: Yugoslav Variation
- A07 · King's Indian Attack: Yugoslav Variation
- A08 · King's Indian Attack: Sicilian Variation
- A05 · King's Indian Attack: Wahls Defense
- A07 · King's Indian Attack: Pachman System
- A08 · King's Indian Attack: Sicilian Variation
- A07 · King's Indian Attack: Keres Variation
Deep theory branches
- 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d4 Ngf6 6. c4 e6 7. cxd5 exd5 8. Nc3 Bd6 — King's Indian Attack: Keres Variation
- 1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. Re1 — King's Indian Attack: Sicilian Variation
- 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d5 — King's Indian Attack: Wahls Defense
- 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 — King's Indian Attack: Pachman System
- 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 b6 5. O-O — King's Indian Attack: Yugoslav Variation
- 1. Nf3 d5 2. g3 c5 3. Bg2 Nf6 4. O-O e6 5. d3 — King's Indian Attack: Sicilian Variation
- 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 — King's Indian Attack: Keres Variation
- 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 — King's Indian Attack: Yugoslav Variation
- 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 — King's Indian Attack: Keres Variation
- 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 — King's Indian Attack: French Variation
- 1. Nf3 Nf6 2. g3 g6 3. b4 — King's Indian Attack: Smyslov Variation
- 1. Nf3 d5 2. g3 c5 3. Bg2 — King's Indian Attack: Sicilian Variation
- 1. Nf3 Nf6 2. g3 d5 — King's Indian Attack
- 1. Nf3 Nf6 2. g3 b5 — King's Indian Attack: Spassky Variation
- 1. Nf3 Nf6 2. g3 g6 — King's Indian Attack: Symmetrical Defense
- 1. Nf3 d5 2. g3 g6 — King's Indian Attack: Double Fianchetto