Nimzo-Indian Defense: Normal Variation, Hübner Deferred

The move d4 in the opening of the game of chess is an attempt by White to seize control of the center of the board. This move opens up the path for the Queen and the Bishop to be developed. Additionally, it also attacks the Black's pawn on e5, hence threatening to win a pawn. In sum, this is a strong opening move that sets the tone for a game where White initiatives to control the center of the board.

Black's move Nf6 in response to White's opening move d4 aims to control the central squares d5 and e4, exerting pressure on White's pawn on d4. This move also develops the Knight, making it an important member of the attacking pieces for Black. Additionally, Nf6 sets up the possibility for Black to later push the pawn to d5, effectively challenging White's central pawn majority. In sum, this move is a standard and sensible response, aiming to contest White's control of the center of the board.

White's move c4 after 1. d4 Nf6 is known as the Queen's Pawn Opening. This move further reinforces White's control over the central squares d5 and e4 and also opens up lines for the Queen's Bishop and Queen. c4 also prepares for the pawn to be advanced to d5 in the future, offering the possibility of establishing a strong pawn center. By playing c4, White also challenges the Black Knight on f6, forcing it to retreat or be exchanged for the pawn on c4. In sum, c4 is a strong and common move in the opening, setting the stage for a potentially aggressive game.

In the Nimzo-Indian Defense: Normal Variation, Hübner Deferred, Black's move e6 after 1. d4 Nf6 2. c4 aims to control the central square d5 and support the pawn chain. This move also prepares for the Bishop to develop on the diagonal b7-a8, supporting the control of the central square d5 and the pawn on c5. Additionally, e6 discourages the White pawn on d4 from advancing to d5, which would further cement their control of the center. In sum, e6 is a flexible and solid move that supports Black's control of the central squares while preparing for the development of the pieces.

White's move Nc3 after 1. d4 Nf6 2. c4 e6 aims to develop the Knight while also reinforcing White's control over the central squares. Nc3 also prepares for the pawn to be advanced to d5, effectively breaking up Black's pawn structure in the center. Additionally, Nc3 allows for the Bishop on f1 to be developed and exert pressure on Black's pawn on c5. By placing the Knight on c3, White puts pressure on the Black Knight on f6, which limits the possibilities for Black's Knight to move. In sum, Nc3 is a strong move that supports White's control of the center of the board while preparing for future pawn advances and piece development.

Black's move Bb4 after 1. d4 Nf6 2. c4 e6 3. Nc3 is known as the Nimzo-Indian Defense. This move attacks the White Knight on c3, forcing White to either exchange pieces or move their Knight to a different square. Bb4 also prepares for the pawn to be advanced to c5, further contesting White's control over the center of the board. Additionally, Bb4 pins the White Knight, making it difficult for White to advance their e and d pawns. By playing Bb4, Black aggressively contests White's control over the center while preparing for further piece and pawn development. In sum, Bb4 is a sharp and dynamic move that creates immediate pressure on the White position.

In the Nimzo-Indian Defense: Normal Variation, Hübner Deferred, White's move e3 after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 aims to reinforce the pawn on d4 while guarding the square d4 against any potential attacks by the Black Bishop on b4. This move also prepares for the White Bishop on f1 to be developed on the diagonal e2-f1, further supporting the central pawns. Additionally, e3 may also prepare for pawn to be advanced to d5, with the possibility of a pawn exchange with the Black Knight on f6. By playing e3, White solidifies their control over the central squares while preparing for future pawn advances and piece development. In sum, e3 is a solid and flexible move, allowing White to consolidate their position while making further plans.

Black's move c5 after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 aims to establish control over the central squares d4 and e4, challenging White's control of the center. This move also supports the Black Bishop on b4 and prepares for the pawn to be advanced to d5. Additionally, c5 may also create pressure on White's pawn on d4, forcing a pawn exchange or weakening the pawn structure. By playing c5, Black aggressively contests White's central control and creates possibilities for further pawn and piece development. In sum, c5 is a dynamic move that aims to undermine White's central control and create opportunities for Black.

White's move Nf3 after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 aims to develop the Knight while guarding the pawn on d4 and supporting the central pawn chain. This move also prepares for the pawn to be advanced to d5, further contesting Black's central control. Additionally, Nf3 allows for the White Bishop on f1 to be developed on the diagonal f1-a6, attacking Black's pawn on c5. By playing Nf3, White solidifies their central control while preparing for future pawn advances and aggressive piece play. In sum, Nf3 is a flexible move that supports White's central control and aims to create opportunities for attack.

In the Nimzo-Indian Defense: Normal Variation, Hübner Deferred, Black's move O-O after 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nf3 aims to improve the King's safety by castling to the Kingside. This move also allows the Rook on h8 to be developed and connected with the rest of the pieces. Additionally, O-O puts the King on a secure side of the board, away from potential pawn storms or aggressive piece attacks from White. By playing O-O, Black completes their King's development while preparing for further pawn and piece actions. In sum, O-O is a solid and essential move that secures the King and creates possibilities for further game play.