King's Indian Defense: Sämisch Variation, Sämisch Gambit

Chess openings are all about controlling the center of the board, and that's exactly what 1.d4 achieves for White. By pushing the pawn two squares forward, White is adding extra control over the squares e5 and c5, which can be valuable in limiting Black's future pawn pushes. Additionally, this move frees up White's c1 bishop and queen for development. As a result, playing 1.d4 is a common choice in many chess openings.

Nf6 is a natural move for Black, as it develops a knight and attacks White's pawn on d4. This move also helps to control the center and supports the idea of pushing the pawn to e5 in the near future. By placing a knight on f6, Black also prepares to castle kingside and protects the pawn on g7. In sum, Nf6 is an aggressive move that aims to challenge White's control of the board and gain space for Black's pieces.

Playing c4 is a natural move for White after Nf6 as it gains additional control over the central squares. This move also frees potential development for White's queen side pieces, notably the knight and bishop. Thanks to the support from White's d4 pawn, playing c4 allows for the possibility of advancing the pawn to c5 in the future, which would put pressure on Black's central position. Furthermore, this move signals to Black that White is willing to play an Open Game while making sure to avoid the symmetrical pawn structure of 1.e4 e5.

In the King's Indian Defense: Sämisch Variation, Sämisch Gambit, Black often plays g6 as it prepares to fianchetto the bishop on g7, which can be a powerful attacking piece in the mid to late game. This move also secures the pawn on f7, which can be a target for White's pieces in some variations. By playing g6, Black is also avoiding the traditional symmetrical pawn structure of 1.e4 e5 openings, and building up a solid defense on their kingside. In addition, this move provides Black's knight on f6 with a future retreat square to g8, which can be important in certain tactical situations.

Playing Nc3 in response to g6 is a sensible move for White as it develops a knight and supports White's central pawn on d4. This move also prepares to castle kingside and supports White's plan to control the center of the board with their pawns and pieces. Moreover, Nc3 can protect the pawn on e4, which can be a target in some lines involving Black's pawn push to e5. By placing the knight on c3, White is also ready to trade off Black's knight on f6 with Nxc3 if Black decides to initiate such a trade.

In response to Nc3, playing Bg7 is a natural move for Black as it develops the bishop and prepares to fianchetto it on the long diagonal. This move also adds to Black's control over the central squares and supports the pawn push to e5, which would open the diagonals for both bishops. By putting the bishop on g7, Black is also pressuring White's pawn on d4 and may be preparing to trade off White's light-squared bishop in certain variations. Additionally, Bg7 helps to castle kingside and adds an extra layer of protection to Black's king. In sum, this move sets Black up for an aggressive, attacking game.

In the King's Indian Defense: Sämisch Variation, Sämisch Gambit, playing e4 is a common move for White as it aims to gain even more control over the center of the board. This move signifies White's intention to push forward and take a more aggressive stance in the game. Playing e4 can also open up lines for White's queen and bishop and put pressure on Black's position. However, this move is not without risk as it can also lead to weaknesses in White's pawn structure if not played accurately. Additionally, Black may have counter-attacking options on the kingside if White is not careful.

In response to e4, playing d6 is a flexible move for Black as it develops the queen side bishop and prepares to castle kingside. This move also supports Black's central pawn on e5, which can be important for their attacking chances later in the game. By playing d6, Black is also controlling the square c5 and avoiding a possible pawn exchange involving White's c4 pawn and Black's knight on f6. Furthermore, d6 helps to strengthen Black's position and provides additional protection for their king. In sum, d6 is a solid, strategic move that prepares Black for developing their pieces and launching potential attacks.

Playing f3 is a common move for White in the King's Indian Defense as it supports White's central pawn on e4 and prevents Black's knight on g4 from attacking with tempo. This move also prepares to advance the pawn to g4 in order to limit Black's pawn structure and open up lines for White's pieces. By playing f3, White can gain more control over the center of the board and potentially gain more space for their pieces. However, it is important to note that f3 weakens White's pawn structure and can open up potential attacking chances for Black. Additionally, moving the pawn twice in the opening can also lead to pawn weaknesses in some variations. In sum, f3 is a double-edged move that requires careful consideration.

In the King's Indian Defense: Sämisch Variation, Sämisch Gambit, castling kingside is a natural move for Black after White plays f3. This move protects Black's king and allows Black to complete their development with the rooks and potentially launch an attack on the queenside. Castling kingside also enables Black to move the knight on f6 to a more active position, such as Nd7-c5, and put pressure on White's pawn on e4. In addition, castling kingside puts the rook on f8 in a position to potentially support Black's pawn push to f5 in certain variations. In sum, O-O is a solid move for Black that prepares them for the middlegame and potential attacks.

Playing Be3 is a common move for White in the King's Indian Defense as it develops the light-squared bishop and prepares to castle kingside. This move also adds additional control over the central squares and supports White's pawn on d4. By playing Be3, White is also potentially aiming to put pressure on Black's pawn structure by threatening to capture the pawn on f6 with the bishop. Additionally, Be3 prepares White for future moves, such as Nd2-c4 or Bd3-f1, depending on the position of Black's pieces. In sum, Be3 is a flexible move that helps White maintain control of the center of the board and prepares for future developments.

In response to Be3, Black often plays c5 in order to gain more space and undermine White's central pawn structure. This move also prepares to initiate an attack on the queenside and potentially gain control over the b-file. By playing c5, Black can also open up lines for their queen and bishop and put pressure on White's knight on c3. Furthermore, c5 can provide a more active square for Black's knight on d7, which may be able to jump to c5 or e5 in certain variations. In sum, c5 is a strong move that aims to widen Black's options and create counterplay against White's position.