Bogo-Indian Defense

ECO E11intermediate

The Bogo-Indian, 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+, delivers the Nimzo check even after White's anti-Nimzo move order. After the main 4.Bd2, Black picks a philosophy: the classical 4...Qe7 supporting a later ...Bxd2 and ...d6/...e5 setup, or 4...a5 keeping the bishop and clamping the queenside. It trades the Nimzo's structural ambitions for simplicity and reliability — a favorite of players who want one sound, learnable answer to 3.Nf3 without Queen's Indian theory.

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Main line

1. 2. 3. 4. 5. 6. 7.

Diagram shows the position after 6 half-moves of the main line. On SpeakChess you can drill this line move by move — the trainer plays the other side and corrects you instantly, then spaced repetition schedules each variation so you review it right before you would forget it.

Move by move

The first 12 moves of the main line, explained one at a time. Every move of every variation is annotated like this inside the trainer — this page shows the opening moves so you can judge the explanations before signing up.

White advances the pawn to d4, staking a strong claim in the center and opening lines for the queen and bishop to develop later.
Black jumps the knight to f6, a great central square. It challenges White's control in the middle and gets a piece into the game early.
White pushes the pawn to c4, building a big pawn duo in the center. Together with d4, these two pawns give White lots of space to work with.
Black steps the pawn to e6, supporting the center and opening a path for the dark-squared bishop to come out and join the game.
The knight hops to f3, a very active square in the middle. It supports the d4 pawn and prepares to help control the center going forward.
Black swings the bishop all the way to b4, putting the white king in check! This bold move is the key idea of the Bogo-Indian Defense.
White blocks the check by developing the bishop to d2. It gets a piece off the back rank while calmly dealing with the threat to the king.
Black moves the queen to e7, stepping out of the back rank and connecting the rooks. The queen also keeps an eye on the center from a safe spot.
White nudges the pawn to g3, making room to fianchetto the bishop on g2. This will create a powerful diagonal pointing right into Black's camp.
Black brings the knight to c6, developing another piece toward the center. The knight adds pressure to the d4 pawn and helps control important squares.
The bishop slides to g2, completing the fianchetto. Sitting on the long diagonal, this bishop will be a powerful piece watching over the whole board.
Black captures the bishop on d2 with the bishop, and the move also gives check to the white king! Black wins material and forces White to respond.

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Win rates by rating

Results from real online games, measured after the line shown in each row. Most opening sites show one aggregate number — how an opening scores depends heavily on who is playing it.

Rating	Games	White wins	Draws	Black wins	Position after
400-600	69	47.8%	1.4%	50.7%	1.d4 Nf6 2.c4
600-800	91	44%	5.5%	50.5%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2
800-1000	44	50%	0%	50%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7
1000-1200	243	51%	3.3%	45.7%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2
1200-1400	74	59.5%	4.1%	36.5%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3
1400-1600	27	40.7%	18.5%	40.7%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+
1600-1800	59	67.8%	6.8%	25.4%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3
1800-2000	35	37.1%	5.7%	57.1%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+
2000-2200	153	40.5%	9.1%	50.3%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+
2200-2400	281	43.8%	10%	46.3%	1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+

Most played continuations (2200-2400 rating)

After 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+:

Nbxd2 — played 67.6% of the time (White wins 44.7%, draws 11.6%, Black wins 43.7%)
Qxd2 — played 32.4% of the time (White wins 41.8%, draws 6.6%, Black wins 51.7%)

Frequently asked questions

Is the Bogo-Indian just a worse Nimzo?

It is a quieter cousin, not a worse one. White's extra option (Bd2 blocking the check) means Black gets fewer structural targets, but the e5-strongpoint plans after ...Qe7 and ...d6 are genuinely hard to crack, and the theory burden is a tenth of the Nimzo complex.

What is the main plan for Black in the Bogo?

After 4.Bd2 Qe7 5.g3 Nc6 6.Bg2 Bxd2+ 7.Nbxd2 d6, Black builds the ...e5 strongpoint and plays a King's-Indian-like game with the dark-squared bishop already profitably traded. The light-squared bishop usually finds a home on d7 or g4.