Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line

Chess is a game that begins with a set of standard moves, one of which is d4. The move d4 is a pawn move that allows White to control the center of the board. It also prepares the way for the development of the queen's bishop and the king's knight. The move d4 is a popular starting move in chess as it provides White with a lot of options for the subsequent moves. In sum, it is a move that sets the tone for the rest of the game.

Black's move Nf6 is designed to challenge White's control of the center of the board. By placing a knight on f6, Black is preparing to launch an attack on the d4 pawn. Additionally, the knight on f6 is also attacking White's pawn on e4, exerting pressure on White's position. Nf6 is a highly flexible move that gives Black more options for future moves, and it also prepares for the development of Black's kingside pieces. Ultimately, Nf6 is a key move in many opening systems and sets up a number of potential plans for Black.

The move c4 by White is known as the Queen's Pawn opening. By advancing the c4 pawn, White is further controlling the center of the board. Additionally, the move prepares the way for White's queen's knight to be developed to c3, where it can be used to put pressure on Black's pawn on d5. c4 is a flexible move that prepares for a variety of opening lines, and it also ensures that White has more space and mobility in the center of the board. In sum, c4 is a key opening move that sets a number of plans in motion for White.

In the Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line, Black's move e6 is a common response to White's c4. This move helps Black to control the square d5, while also developing their king's pawn. By placing a pawn on e6, Black is preparing to bring their light-squared bishop into play, likely fianchettoing it to b7. This move also helps to support Black's position and puts pressure on White's control of the center of the board. Ultimately, e6 is a flexible move that sets up a variety of plans for Black's pieces.

The move Nf3 by White is a natural response to Black's pawn move to e6. Unlike the opening line where White's pawn is on e4, here White is not obstructing their queen's bishop. By developing the knight to f3, White is continuing to control the center of the board while also preparing to castle their king. The move also ensures that White has more options for developing their pieces and can choose between different plans depending on Black's subsequent moves. In sum, Nf3 is a flexible move that puts pressure on Black's position while allowing White to maintain a strong position in the center of the board.

Black's move b6 in response to Nf3 is the first move of the Queen's Indian Defense. By placing a pawn on b6, Black prepares to develop their queen's bishop to b7. This move also provides a secure home for the black king's bishop, while still exerting pressure on the central squares. By developing the queen's bishop to b7, Black aims to control the diagonal that leads to White's castled king. The move b6 is a flexible and solid move that prepares for the subsequent development of Black's pieces, while still maintaining pressure on White's position.

In the Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line, White's move g3 is known as the Fianchetto Variation. The move allows White's bishop to develop to g2, exerting pressure on Black's pawn on d5. By controlling the diagonal and securing the king's position, White is preparing to castle their king safely. The move g3 is also a versatile move that allows White to develop their pieces according to Black's subsequent moves. Additionally, it prevents Black from playing Ng4, which would cause White some inconvenience. Ultimately, g3 is a flexible starting move that sets up a number of potential plans for White.

Black's move Ba6 in response to g3 is a common move in the Fianchetto Variation. By developing the bishop to a6, Black is preparing to trade White's bishop on g2, thus weakening White's pawn structure. This move also aims to put some pressure on White's position and can be used to attack White's pawn on c4. Additionally, the move Ba6 prepares for the development of Black's queen's knight and makes it hard for White to put pressure on d5. The move is a flexible move that sets up a variety of plans for Black's pieces. In sum, Ba6 is a powerful move that gives Black a strong opening position and control over the board.

White's move b3 is a common response to Black's bishop move to a6. By placing a pawn on b3, White is not only preparing to fianchetto their own bishop on b2, but also creating a counter-threat against Black's bishop on a6. The move b3 ensures that Black's bishop doesn't have room to move to c5, creating a potential pin. Additionally, the pawn on b3 helps to control the square c4, and the diagonal leading to Black's castled king. The move is a versatile move that prepares for potential future attacks, while still developing White's pieces. In sum, b3 is a flexible move that sets up a variety of potential plans and strategies for White.

In the Queen's Indian Defense: Fianchetto Variation, Check Variation, Modern Line, Black's move Bb4+ is a common follow-up to White's move b3. By developing the bishop to b4, Black is preventing White from playing a3, which would force the bishop back to a6. The move also puts pressure on White's knight on f3, which is now pinned. By developing the piece to a square that attacks White's position, Black is establishing control over the center and exerting pressure on White's development. The move Bb4+ is a flexible move that prepares for a variety of positions, including the possibility of trading pieces. Ultimately, it is a powerful move that gives Black control over the board and sets them up for strong attacks.

White's move Bd2 is a common response to Black's bishop move to b4+. By developing the bishop to d2, White aims to reinforce their knight on f3 and defend their pawn on c4. This move also helps to prepare for the eventual castling of the king. Additionally, the move anticipates Black's potential queen's knight development to c6, making it difficult for Black to control the center of the board. The move is a versatile starting move that allows White to develop their pieces according to Black's subsequent moves. In sum, Bd2 is a strong move that strengthens White's position and prepares them for future attacks.

Black's move Qe7 in response to Bd2 is a common move in the Fianchetto Variation. By developing the queen to e7, Black is preparing to castle their king and make room for their rooks to connect. The move also ensures that Black's queen can later move to d6, exerting pressure on White's pawn on d4. Additionally, the move Qe7 helps to link up Black's pieces along the e-file, making it easier for Black to coordinate their pieces. The move is a versatile move that sets up a variety of potential plans for Black's pieces. In sum, Qe7 is a powerful move that improves Black's position and control over the center of the board.