Bogo-Indian Defense
ECO E11 · 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+
The Bogo-Indian Defense, 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+, gives a check to disrupt White's development. Named after Efim Bogoljubov, it is a solid, low-theory alternative to the Queen's Indian.
Plans for White
White blocks with Bd2 or Nbd2, keeps the center and often fianchettoes with g3 and Bg2. After Bd2, White can trade dark-squared bishops or let Black do it, then aim for e4 and central space.
Plans for Black
Black trades dark-squared bishops or keeps tension with ...Qe7, then plays ...d6 and ...e5 for a dark-square strategy, or ...d5 for a Queen's Gambit-style position. Development is quick and harmonious.
Typical pawn structures
Often a dark-square strategy for Black with pawns on d6 and e5 after the bishops are traded, or Queen's Gambit structures after ...d5.
Who it suits
Players looking for a simple, reliable setup against 3.Nf3 who do not want to study the Queen's Indian main lines.
Common traps
Loose pieces on the long diagonal can be targeted by Qb3 or Qa4 checks; after ...Bxd2+ Black must also watch the e4-e5 push gaining space with tempo.
Variations
- Bogo-Indian Defense: Grünfeld Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2
- Bogo-Indian Defense: New England Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nfd2
- Bogo-Indian Defense: Exchange Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+
- Bogo-Indian Defense: Haiti Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Nc6
- Bogo-Indian Defense: Nimzowitsch Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7
- Bogo-Indian Defense: Retreat Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Be7
- Bogo-Indian Defense: Vitolins Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5
- Bogo-Indian Defense: Wade-Smyslov Variation — 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5
- Bogo-Indian Defense: Monticelli Trap — 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5