King's Indian Defense: Fianchetto Variation, Pterodactyl Variation

The move d4 is a strong central pawn move made by white in the opening. This move asserts control over the center of the board and allows white to develop their pieces more effectively. By playing d4, white aims to contest black's control of the center with their own pawns. This move can also potentially open up lines for white's bishop and queen, creating opportunities for threats and attacks.

The move Nf6 is a common response by black to white's opening move d4. By placing the knight in front of the king, black asserts control over the central squares and prepares to develop their minor pieces. This move also supports the possibility of playing e5 later on, challenging white's control over the center. Nf6 is a flexible move that allows black to transpose into many different openings based on white's next move.

The move Nf3 is a natural response by white to black's move Nf6. By developing the knight to a central square, white reinforces their control over the center of the board and prepares to castle kingside. This move is also a commonly played move in many different variations of the opening and allows flexibility for white's future pawn and piece movements. Nf3 is a solid development move that maintains pressure on black's center and prepares for future oncoming attacks.

In the King's Indian Defense: Fianchetto Variation, Pterodactyl Variation, the move g6 is a common response by black to white's opening moves. By fianchettoing the bishop to g7, black prepares to create a strong pawn chain and control the dark squares in the center. This move also sets up the possibility of playing d6 and e5, further contesting control over the center. Playing g6 also shields the f7 pawn from potential attacks from white's queen or bishop. In sum, g6 is a solid move that sets up a strong position for black.

The move c4 by white in response to black's moves in the opening is known as the Queen's Pawn opening. By pushing the pawn to c4, white aims to gain more control over the center of the board while also preparing to develop their knight to c3. This pawn move can create threats against black's pieces and can gain space in the center of the board. C4 also prepares the way for future possibilities of playing d5, putting more pressure on black's position. The move c4 can lead to many different opening variations, including the King's Indian Defense: Fianchetto Variation, Pterodactyl Variation.

The move Bg7 by black is a natural and common response to white's pawn move to c4. By fianchettoing the bishop to g7, black prepares to control the long diagonal and potentially put pressure on white's position. This move also sets up the possibility of playing d6, e5, and f5, solidifying black's pawn chain and creating attacks on white's king position. By placing the bishop on g7, black also opens up more space for their queen and rook to potentially enter the board. In sum, Bg7 is a solid developing move that sets up many different possibilities for black's future moves.

In the King's Indian Defense: Fianchetto Variation, Pterodactyl Variation, the move g3 by white is a commonly played move in response to black's moves in the opening. By fianchettoing the king's bishop to g2, white prepares to castle kingside and adds an extra layer of defense to their king position. This move also helps control the central squares and sets up the possibility of playing d5 in the future. Playing g3 can also limit black's potential attacks on the long diagonal and prepare for white's future pawn movements. In sum, g3 is a solid move that strengthens white's position while limiting black's options.

In response to white's move g3, black can often play c5 in order to gain more control over the center and further challenge white's position. This move also sets up the possibility of playing d5 and potentially exchanging pawns in the center of the board. By playing c5, black can gain more space and further limit white's options for future pawn movements. This move may also provide new potential avenues for black's queen and bishop to enter the game. In sum, c5 is a solid move that contributes to black's strong pawn chain and denies white as much of the center as possible.

Playing Bg2 by white in response to black's move c5 is a natural developing move that is played in many openings. It allows white to further secure their position by supporting the pawns on d4 and e5, while also increasing control over the central squares of the board. This move can also be a preparatory move for castling kingside and protecting the king. Developing the bishop to g2 also maximizes the bishop's potential to attack along the long diagonal, putting more pressure on black's position. In sum, Bg2 is a solid move that strengthens white's position and contributes to their overall plan in the opening.

In the King's Indian Defense: Fianchetto Variation, Pterodactyl Variation, the move Qa5+ by black is a tactical move that attacks white's pawn on c4 and forces white to move their king or interpose a piece to protect it. This move also puts immediate pressure on white's position by threatening to undermine their pawn structure. By playing Qa5+, black can also bring their queen into the game early while also continuing to develop their pieces. This move can also potentially set up future combinations or tactics for black. In sum, Qa5+ is a strong move that immediately puts pressure on white's position while also developing black's pieces.