Scandinavian Defense: Anderssen Counterattack, Collijn Variation

Chess is a game of opening moves, and one of the most popular is playing e4 on the first move. White always looks for opportunities to control the center of the board and open up its pieces. The e4 move does both by controlling the d5 square and freeing the light-square bishop. It also allows the queen to come out later and participate in the game. Playing e4 can be dangerous if black counters it correctly, but with sound strategic planning, white can come out ahead.

Black plays d5 in response to 1.e4 to immediately challenge white's control of the center. While it does place the pawn in a vulnerable position, it also creates opportunities for black to develop pieces and counterattack. By playing d5, black opens up the way for its dark-square bishop and queen to come out and exert pressure on multiple squares. The move also aims to capture the e4 pawn, forcing white to give up its control of the center or engage in a tactical battle.

White plays exd5 after 1.e4 d5 to capture the pawn and potentially gain an advantage in material. Moving the pawn to d5 weakens black's control over the center and leaves the pawn vulnerable to attack. By capturing the pawn, white expects to gain control of the center and free up its queen and dark-square bishop. However, this move can also open up lines of attack for black and put white into an early defensive position. The exd5 move is a key moment in the game, as it sets the stage for both players to develop their pieces and make strategic choices for the mid and endgame.

In the Scandinavian Defense: Anderssen Counterattack, Collijn Variation, black plays Qxd5 after 1.e4 d5 2.exd5 to bring its queen into the game and attack the white knight on c3. The move also puts pressure on the e4 pawn, forcing white to defend or risk losing control of the center. By capturing the d5 pawn, black gains a small material advantage and disrupts white's pawn structure. However, the queen must be defended carefully to avoid being trapped or exposed to attacks by white's pieces. In sum, Qxd5 is a strong move in the Scandinavian Defense and sets the stage for a complex and dynamic game.

After 1.e4 d5 2.exd5 Qxd5, white plays Nc3 to develop a piece and defend the e4 pawn. The knight also attacks the black queen, forcing it to retreat or be traded off. The move supports future developments of white's pieces, such as the light-square bishop and the queen. By playing Nc3, white aims to control the center and limit black's options for counterplay on the queenside. However, this move can also give black the opportunity to attack the knight with moves such as b6 or Nbd7. In sum, Nc3 is a solid and flexible choice for white in this opening.

After 1.e4 d5 2.exd5 Qxd5 3.Nc3, Black plays Qa5 to attack the white pawn on a2 and force white's queen to move from its centralized position. The move pins the knight on c3, making it more difficult for white to develop its pieces effectively. By playing Qa5, Black also prepares to castle queenside and create pawn storms against the white king. However, this move has its drawbacks - the queen can become exposed and vulnerable to attacks from white's pieces, especially if it moves again later in the game. In sum, Qa5 is a tactical move that challenges white's position and sets the stage for dynamic play on the queenside.

In the Scandinavian Defense: Anderssen Counterattack, Collijn Variation, White plays d4 after 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 to gain control of the center and limit Black's mobility. The move also frees up White's dark-square bishop and creates space for minor pieces. By playing d4, White aims to further develop its pieces and force Black to react defensively. However, this move can also leave the d4 pawn vulnerable to Black's attacks and create weaknesses in White's pawn structure. In sum, d4 is a move that involves risks and rewards and sets the stage for dynamic play on the board.

After 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4, Black plays e5 to challenge White's pawn structure and gain more control of the center. The move opens up lines of attack for Black's light-square bishop and queen. By playing e5, Black hopes to gain more space and restrict White's movements. However, this move can also leave Black's d5 pawn vulnerable and expose its king to attack. In sum, e5 is a move that requires careful calculation and can greatly impact the positional dynamics of the game.

After 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 e5, White plays Nf3 to protect its pawn on d4 and also to develop its knight to an active square. This move prepares to castle kingside and support future developments of white's pieces. By playing Nf3, White aims to control more squares in the center and put pressure on Black's pieces, especially the queen on a5. However, this move can also open up lines of attack for Black's pawns, such as f5 or g6. In sum, Nf3 is a natural and flexible move that sets the stage for further developments in the opening.

In the Scandinavian Defense: Anderssen Counterattack, Collijn Variation, Black plays Bg4 after 1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 e5 5.Nf3 to pin the knight and potentially force a trade of pieces. By playing Bg4, Black also develops its bishop to an active square and puts pressure on White's kingside. However, this move can also expose the bishop to attacks from white's pieces and limit Black's mobility. In sum, Bg4 is a move that sets the stage for tactical play and requires careful consideration of the positional dynamics on the board.