King's Indian Defense: Smyslov Variation

The move d4 is played by white to establish a strong central pawn. By doing so, white is aiming to control the center and limit the mobility of black's pieces. This move also prepares for a possible exchange in the center with black's pawn on e5, gaining more space. In sum, the move d4 sets the tone for a strategic battle where each player will aim to control the center and develop their pieces.

The move Nf6 by black is played to attack white's pawn on d4 and aim for control over the center. This move also helps in developing the knight early in the game while preparing to castle. Playing Nf6 also potentially allows black to transpose into other openings depending on the subsequent moves played by white. By putting pressure on white's pawn on d4, black lays the foundation for their own strategic options going forward in the game.

The move c4 played by white is a standard response to black's move Nf6. The move aims to control d5, limiting black's pawn to advance and reduce their ability to control vital central squares. By taking control of the center, white also gains the freedom to move their pieces around more easily. Additionally, playing c4 prepares for possible future exchanges in the center and the chance for white to gain more space and create chances for an attack.

In the King's Indian Defense: Smyslov Variation, black plays g6 to prepare for the fianchetto of their bishop to g7 and take control over the long diagonal. This move also ensures that black's king is safe by moving it to the kingside corner. By playing g6, black also tries to reduce white's control over the center and prepares their pawn on d6 to reinforce the pawn on e5. Additionally, playing g6 can set the stage for possible pawn breaks on the kingside by freeing up the f5 square for the knight to move forward.

The move Nc3 played by white develops the knight and attacks black's pawn on d5. This move also prepares for the future development of white's pieces and the potential exchange in the center and on the queenside. By playing Nc3, white sets the stage for a wider range of strategic possibilities. It can also signal an intention to play an attacking game by preparing to move the queen to the kingside and castle. In sum, the move Nc3 is a standard move in many openings and aims to improve white's control over the board.

The move Bg7 by black continues their development while preparing to create a strong pawn chain on the kingside using their knight and pawns. Additionally, by fianchettoing their bishop, black aims to put pressure on the center with their minor pieces and create potential attacking opportunities in the future. By developing the bishop on this diagonal, black also ensures that its path is clear for future positional maneuvers, and the bishop can be of use in defensive situations as well. This move is also in line with the strategic objectives of the King's Indian Defense by creating a sturdy position on the kingside and preparing for potential pawn breaks.

In the King's Indian Defense: Smyslov Variation, white plays Nf3 to improve their development, support the pawn on e4, and put pressure on black's central pawn. The move also provides flexibility for white's knight, who can be redirected to the kingside for potential attacks. Additionally, playing Nf3 protects the vulnerable pawn on d4 by defending it with two pieces. It also prepares for future exchanges and positional moves in the center or on the queenside. The move Nf3 is a standard move in many openings and allows for increased strategic options for white going forward.

The move d6 played by black helps to reinforce the pawn on e5 and further control over the center. The move also prepares for the development of black's light-squared bishop to e6, which can support the pawn structure or exert pressure on the kingside. By playing d6, black also secures the king and provides for the possibility of castling in the future. Additionally, this move denies white the option of playing e5 and gaining more space and control in the center. In sum, the move d6 helps to maintain the equilibrium in the position and prepares for a wide range of strategic possibilities.

The move Bg5 played by white pins black's knight on f6, which removes its defense of the e5 square. This enables white to potentially capture the e5 pawn or gain more control over the center. By playing Bg5, white also puts pressure on the black bishop on g7 and threatens to exchange it with their knight on c3. This move also prepares for a potential future move of Nh4, which can be used to attack the black king on the kingside. In sum, the move Bg5 provides white with an opportunity to gain control of the center and potentially create a favorable position with strategic potential for future attacks.