Nimzo-Indian: 4.e3 O-O 5.Nf3 d5 6.Be2

ECO code: E51

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Be2

Opening Name: Nimzo-Indian Defense, 4.e3 Variation, Classical Line

Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Be2

Description: This line in the Nimzo-Indian Defense is a solid and classical approach for White. By playing 4.e3, White supports the center and prepares to develop the dark-squared bishop, often aiming for a strong pawn structure without immediately challenging Black's bishop on b4. After Black castles and plays ...d5, White continues with natural development by 5.Nf3 and 6.Be2, completing kingside development and ready to castle.

Characteristic of 6.Be2: This move is a flexible and classical developing move that prepares White to castle kingside safely. It maintains solid control over the center and keeps options open for future pawn breaks or piece maneuvers without committing to an early confrontation.

Attacking or Defensive: For White, this setup is generally considered solid and somewhat positional, focusing on sound development and center control rather than immediate attacking chances. For Black, the position offers dynamic counterplay opportunities, especially targeting the center and exploiting the pin on the knight on c3.

Center Control: Yes, this opening fights actively for control of the center. Black’s ...d5 challenges White’s central presence directly, while White supports the center with pawns on d4 and e3. The position often leads to a balanced but strategically rich struggle over central squares.

Opening Preview

This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.

Related Puzzles

Practice puzzles and train your tactics with real positions from games that used the Nimzo-Indian: 4.e3 O-O 5.Nf3 d5 6.Be2, and sharpen your opening mastery.

Puzzle 1 of 3 - Move #11 white