Dutch Defense: Leningrad, Basman System

The move d4 is a strong central pawn advance by White, aiming to control the center and put pressure on Black's position. By pushing the d-pawn two squares forward, White gains control of the e5 square, restricting Black's pawn structure and limiting the mobility of Black's pieces. This move also opens up lines for White's light-squared bishop and queen, potentially allowing for a quick attack on Black's king. In essence, d4 is played to gain control of the center, create attacking possibilities, and limit Black's options.

The move f5 is a common response to White's opening move d4, with the aim of challenging White's control of the center and creating counterplay on the kingside. By advancing the f-pawn two squares forward, Black creates a pawn chain that controls the e4 square and potentially allows for the development of the bishop to f6, putting pressure on White's d4 pawn. Additionally, the f-pawn advance can also create tactical possibilities, such as a potential knight sacrifice on f3 to weaken White's kingside defense. In sum, f5 is played to challenge White's control of the center and create counterplay on the kingside.

The move g3 is a flexible move by White, aiming to control the light squares on the kingside and develop the bishop to g2. By playing g3, White prepares to fianchetto the bishop which has a strong influence on the center and long diagonal. Furthermore, the move supports the pawn on d4 and prepares to castle kingside, making the king safer before starting any attack. The move g3 also limits Black's options of attacking with h6 and g5. In short, by playing g3, White aims to control the light squares on the kingside, develop the bishop to g2 and prepare to castle kingside.

In the Dutch Defense: Leningrad, Basman System, Black often plays c6 after White's pawn move g3. This move aims to solidify the pawn chain on the queenside and control the d5 square, limiting White's options in the center. Additionally, c6 prepares to develop the knight to c7, where it can support the d5 pawn and put pressure on White's d4 pawn. The move also serves as a prophylaxis against potential threats from White's light-squared bishop and queen. In summary, c6 is played to solidify the pawn chain on the queenside, control the d5 square, and prepare to develop the knight to c7.

The move Bg2 is a key development move by White in many openings, including the Dutch Defense: Leningrad, Basman System. By fianchettoing the bishop, White gains control over the long diagonal and puts pressure on the center. Additionally, Bg2 allows White to castle kingside, making the king safer and completing the development of the kingside pieces. The bishop on g2 also supports the central pawn on d4 and puts pressure on the Black's pawn chain. Finally, the bishop can also be used to support White's attack on the kingside. In short, by playing Bg2, White aims to control the long diagonal, support the central pawns, develop the kingside pieces, and prepare for a potential attack on the kingside.

The move g6 is a common response by Black to White's third move Bg2. By fianchettoing its own bishop, Black gains control over the long diagonal and prepares to further develop the kingside pieces. Additionally, g6 can serve as a prophylaxis against potential attacks on the kingside and prepare to castle kingside. Black's bishop on g7 also puts pressure on the central pawns and can be used to support a potential attack on the queenside. Furthermore, the pawn structure on g6 and f5 can potentially create a strong pawn chain and limit White's options for creating passed pawns. In summary, g6 is played to control the long diagonal, develop the kingside pieces, defend against potential attacks, and prepare for an attack on the queenside.

In the Dutch Defense: Leningrad, Basman System, White often plays Nf3 after Black's pawn move g6. This move aims to develop the knight to a strong central square and control the e5 square. Additionally, Nf3 supports the d4 pawn and prepares to castle kingside, making the king safer. The knight on f3 can also support the central pawn push e4 and prepare for a potential attack on the queenside. Moreover, Nf3 can be used to create a strong pawn center and gain control over the d5 square, limiting Black's counterplay. In short, by playing Nf3, White aims to develop a strong central piece, control the e5 square, protect the pawn on d4, prepare to castle kingside, and support a potential attack on the queenside.

The move Bg7 is a natural response by Black to White's knight move to f3. By fianchettoing the bishop, Black further develops the kingside pieces and gains control over the long diagonal. Additionally, Bg7 puts pressure on the central pawns and can potentially support a counterattack on the queenside. The bishop on g7 can also serve as a defensive piece, guarding against potential attacks on the kingside. Furthermore, the bishop can be used to control the g-file and support pawn pushes on the kingside. In short, Bg7 is played to further develop the kingside, put pressure on the central pawns, provide a defensive piece, and create potential counterattacking and controlling options for the kingside.

The move O-O, or castling kingside, is a natural development move by White in many openings, including the Dutch Defense: Leningrad, Basman System. By castling, White moves the king to a safer position and connects the rooks, preparing them for potential centralization. Additionally, castling can help create a strong pawn center and support potential attacks on the queenside or the center. The king on g1 may also be better placed to defend against potential counterattacks on the kingside. Finally, O-O can also put pressure on Black's queenside, potentially allowing for the occupation of an open file or the creation of a passed pawn. In short, castling kingside is played to move the king to safety, connect the rooks, support potential attacks, and provide better control over potential counterattacks.

In the Dutch Defense: Leningrad, Basman System, Black often plays Nh6 after White's king castles kingside. This move aims to develop the knight to a reasonable square and provide additional support for the f5 pawn. Additionally, Nh6 prepares to create a semi-open g-file for Black's rook to potentially occupy. The knight on h6 can also support potential pawn advances on the kingside, especially if combined with the bishop on g7. Furthermore, the move puts pressure on White's pawn structure and can support a potential counterattack on the kingside. In short, Nh6 is played to develop the knight, prepare for creating a semi-open g-file, provide additional support for the f5 pawn, and support potential pawn advances and counterattacks on the kingside.