Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation

The move 1. d4 is the foundation of the Queen's Pawn Opening. White aims to establish control over the center with this move, as well as prepare for the development of the Queen's Bishop. By occupying the center with a pawn, White hopes to gain a spatial advantage and restrict Black's piece mobility. After Nf6, White plays 2. c4 to support the d4 pawn and further advance in the center. This move also threatens to attack Black's pawn and possibly win it.

By playing Nf6, Black aims to challenge White's control over the center. This knight move attacks the d4 pawn, forcing White to defend it and potentially give up some control over the center. The move Nf6 also prepares for the development of Black's light-squared bishop, which can be placed on c5 to continue putting pressure on White's pawn on d4. Additionally, by placing a knight on f6, Black is able to control key squares on the board and prepare for future tactical opportunities.

White plays c4 to further control the center and gain more space. This move also helps establish a solid pawn chain with pawns on d4 and c4, which can be used to support White's pieces as they advance towards Black's position. Additionally, c4 puts pressure on Black's knight on f6, which must either move or be defended. By playing c4, White aims to gain an advantage in development and position, with the potential to force Black into a passive position.

In the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation, Black plays e6 in order to prepare the development of their own Bishop along the long diagonal. The move e6 also reinforces the d5 square, and indirectly defends the knight on f6. By playing e6, Black hopes to establish a solid pawn structure and limit the scope of White's light-squared bishop. This move also helps to control the center, and can potentially restrict White's pawn advance on d5.

White plays Nc3 to support the d4 pawn, and to put pressure on Black's knight on f6. This move also prepares for the development of White's kingside pieces. By playing Nc3, White can challenge Black's control over the center, and possibly threaten to advance with d5 in the future. Additionally, Nc3 helps to streamline White's piece development and prepares for future tactical opportunities on the board.

By playing Bb4, Black pins White's knight on c3, which means it can't step away to support the d4 pawn anymore. Moreover, Black's light-squared bishop is now active, and it puts pressure on White's pawn structure. The bishop on b4 attacks the pawn on c3, which can't be recaptured by the other pawn due to the pin. Additionally, Bb4 prepares for a future exchange of the bishop with White's knight, which can help Black develop their pieces efficiently while leaving White with an isolated pawn on the d-file.

In the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation, White plays e3 to support the d4 pawn and free up the knight on c3. This move also helps to prevent any future pins on White's knight with moves like Ng4 from Black. By playing e3, White can also prepare to advance in the center with d5, which can help establish a dominant position in the game. Additionally, the move e3 helps to control key squares in the center, and it can prepare for future tactical opportunities on the board.

By playing O-O, Black aims to safeguard their king and prepare the rook for potential future use in the center or on the c-file. This move also helps to free up Black's f8 bishop, which can be developed to c5 or d6 in order to put pressure on White's pawn structure. Additionally, castling helps to streamline Black's piece development, which is now complete for the time being. By castling early, Black can also prepare for any potential kingside attacks that White may attempt in the game.

White plays Bd3 to develop their light-squared bishop and prepare for potential future attacks on the kingside. This move also helps to control key squares in the center and prepare for future tactical opportunities on the board. Additionally, by placing the bishop on d3, White indirectly defends the pawn on e3, preventing any potential pins from Black's bishop on b7. The bishop on d3 can also be used to support the advance of White's pawn on d4, potentially creating a passed pawn in the center and gaining more space on the board.

In the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation, Black plays d5 in order to challenge White's control over the center and gain more space. This move also frees up Black's light-squared bishop on c8, making it easier to develop and participate in the game. By playing d5, Black aims to open up the position and create tactical opportunities for themselves. This move also threatens to attack White's pawn on e4, potentially leading to an exchange that helps Black gain an advantage. Additionally, d5 can help to restrict the scope of White's pieces and limit their ability to pressurize Black's position.

White plays Nf3 to develop their knight and establish control over the central squares. By placing the knight on f3, White prepares for the advance of their e-pawn, potentially creating a passed pawn in the center or pushing Black's position back. This move also prepares for future tactical opportunities on the board, as the knight on f3 is able to attack key squares on both the kingside and queenside. Additionally, Nf3 helps to support White's pawn structure and control any potential breaks from Black. This move also allows White to potentially castle kingside in order to further protect their king from any opposition attacks.

By playing c5, Black aims to gain more space on the queenside and restrict White's control over the center. This move also prepares for the development of Black's queen's knight to c6, potentially attacking White's d4 pawn or supporting the advance of Black's b-pawn. Additionally, the move c5 can help to create tactical opportunities for Black by expanding their pawn structure and potentially opening up files for piece play. This move also puts pressure on White's pawn structure, potentially causing them to make concessions or even sacrifice a pawn in order to maintain control over the board.

In the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation, White plays O-O to safeguard their king and prepare their rook for potential future use in the center or on the c-file. This move also helps to free up White's light-squared bishop, which could potentially move to d3 or e2 in order to pressure Black's position. By castling kingside, White can also prepare for potential tactical opportunities that may arise on the kingside or center of the board. Additionally, castling helps to streamline White's position and prepare for any potential attacks that Black may attempt in the game. Castling early can also act as a deterrent to any potential pawn breaks from Black, by ensuring that White's king is safe in the early stages of the game.

By playing dxc4, Black aims to open up the position and gain more space on the queenside. This move also helps to create tactical opportunities for Black, as it allows their bishop to become more active. Additionally, dxc4 potentially weakens White's pawn structure and creates the possibility of a passed pawn on the c-file for Black. The pawn exchange also clears the c5 square for Black's queen's knight, potentially opening up a line of attack on White's position. Moreover, by capturing on c4, Black can potentially threaten the d4 pawn and force White to spend time defending it.

White plays Bxc4 to regain control of the center and to relieve pressure from their pawn on d4. This move also helps to free up White's queen's bishop, allowing it to participate in the game more effectively. By capturing on c4, White creates the potential for a passed pawn on the d-file, which could be used to restrict Black's position. Additionally, this move potentially weakens Black's pawn structure, creating the possibility of isolated pawns or pawn weaknesses. By exchanging pawns, White can potentially gain a positional advantage on the board, while also preparing for future tactical opportunities.

In the Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation, Black plays Nbd7 to develop their knight and put pressure on White's pawn on d4. This move also prepares for the potential exchange of Black's knight on d7 for White's bishop on c4, which could give Black an advantage in their pawn structure. By playing Nbd7, Black also increases the scope of their knight, potentially allowing it to move to c5 in order to attack White's pawn on d3 or put pressure on the knight on f3. Additionally, Nbd7 helps to streamline Black's position and prepare for any potential tactical opportunities that may arise on the board. This move also places a piece on a solid square, helping to protect Black's position and limit any potential weaknesses.