King's Indian Defense: Four Pawns Attack, Modern Defense

When playing white, the first move d4 is commonly used in order to control the center of the board. By advancing the pawn two spaces, white effectively blocks the pawn on c7 of black's side, preventing the immediate advance of the pawn to put pressure on white's center. This move also opens up opportunities for white's pieces to enter the game through the c1-bishop and the knight on f3.

In response to white's d4, black usually plays Nf6 which aims to control the center and fight for more space on the board. The knight on f6 also targets the pawn on e4, putting pressure on white's position in the center. Moreover, this move allows black to create a defense for the King while paving the way for the development of the light-squared Bishop on c8 or g7. It is a flexible and solid move which prepares for other possible pawn moves like e5 or d5.

Playing c4 is a standard move in response to black's Nf6. C4 aims to control the center by challenging the pawn on d5 and opening up a diagonal for the Bishop on c1. This move also prepares the way for white's Queen's Knight to enter the game. If Black decides to capture the pawn on c4 with their Knight, White could gain a better control of the center of the board and a chance to put pressure on Black's position. In sum, c4 helps white to create more space, bring more pieces out and gain more flexibility.

In the King's Indian Defense: Four Pawns Attack, Modern Defense, Black can respond to white's c4 with g6, a move which prepares for the fianchetto of the King's Bishop on g7. By bringing the Bishop to g7, Black will control the diagonal and exert pressure on the center of the board. Additionally, the pawn on g6 prevents white from playing their knight to f5, which could be a threat. Moreover, g6 allows Black to castle kingside, providing additional security for the King while reinforcing the pawn chain on d5. Finally, g6 is also a flexible move that allows Black to prepare for future developments.

In response to Black's g6, White can play Nc3 in the King's Indian Defense. This move develops the knight and prepares the way for the pawn on d4 to be defended by the knight later on. Moreover, Nc3 aims to put pressure on Black's position by attacking the pawn on d5. This move also supports the idea of playing e4 and controlling the center of the board outright, forcing Black to respond to White's initiative. Additionally, Nc3 allows the Queen's Knight to be deployed either to d2 or e2, making room for the light-squared Bishop to come out and be positioned on c4. In sum, Nc3 is an important move to control the center and increase the strength of White's position.

In the King's Indian Defense, Black can play Bg7 in response to White's Nc3. This move allows for Black's dark-squared Bishop to be developed, opening up the diagonal and exerting pressure on White's position. Placing the Bishop on g7 also reinforces the pawn chain, making it difficult for White to advance their pawns. Additionally, Bg7 controls the h6 square and takes aim at White's position, specifically at the pawn on d4. This move also prepares for castling kingside and further securing the position of Black's King. In sum, Bg7 is an important move that contributes to the active development and reinforces Black's control of the center of the board.

In the King's Indian Defense: Four Pawns Attack, Modern Defense, White can respond to Black's Bg7 with e4. This move aims to gain control of the center by pushing White's pawn forward two spaces and opening up lines for all of their pieces. Moreover, e4 also gains more space in the center and breaks up Black's pawn structure. This move can also force Black to take action and make decisions that can be exploited. If Black moves their Knight to support the pawn on d5, their King's position can be weakened, leaving the position vulnerable for an attack. Additionally, e4 opens up a diagonal that can be used to position the Bishop on c4, increasing White's power on the board. In sum, e4 is an aggressive move that aims to gain the initiative and positional advantage.

In response to White's move e4, Black can play d6, a flexible move that prepares the way for the Knight on f6 to be able to support the e5 pawn, challenging White's central control. The d6 pawn can also support a future move of the pawn c7 to c5, gaining more space on the queenside. By playing d6, Black can also support the light-squared Bishop on g7, allowing it to be prepared for future moves made by White, such as Ng5 or Qb3. Moreover, d6 helps strengthen Black's position and prevents tactics that White may try to initiate on the e5 pawn. In sum, d6 is a solid move that allows Black to prepare for future play and gain more control over the center of the board.

In response to Black's move d6, White can play f4 in the King's Indian Defense. This move aims to gain further control over the central squares by advancing the pawn two spaces and putting pressure on the pawn d6. Moreover, f4 can open up space to allow the Queen or Knight to move to f3 or g3, continuing to threaten Black's position. Additionally, f4 can disrupt Black's pawn structure and force Black to make more difficult decisions. However, this move comes with potential weaknesses, such as the weakening of the King's position and possible tactics to be initiated against the e4 pawn. In summary, f4 is a bold and aggressive move that aims to gain more space and create potential threats against Black's position.

In the King's Indian Defense, Four Pawns Attack, Modern Defense, Black can play Na6 in response to White's f4. This move aims to challenge the pawn chain of White on the King's side by hopping the Knight from the flank to the central square b4. Na6 opens up lines for the Bishop on g7, exerting pressure on the pawn on d3. This move also helps prevent any possible tactics that may be initiated by White on the e5 pawn. Additionally, Nxa6 can be used as a positional sacrifice that can be made to exchange the Knight for the Bishop on c4 later in the game. In sum, Na6 is a flexible and useful move that sets Black up for future initiatives while disrupting White's plan.