Russian Game: Classical Attack, Jaenisch Variation

In the Russian Game: Classical Attack, Jaenisch Variation, White starts with the move e4 to control the center of the board and gain control of key squares. This move also prepares for the development of the king's bishop to f4 and helps create a pawn chain that supports the pieces in the center. By playing e4, White puts pressure on Black to respond with an equally strong move that maintains control over the center of the board. Without this move, White risks conceding an advantage to Black in terms of space and control over key squares.

Playing e5 after 1. e4 is a natural move for Black as it also aims to get control of the center of the board, limiting the mobility of the white pieces. By mirroring White's move, Black is able to put pressure on the central pawn structure. This move also allows Black's knight to enter the game and increases its overall mobility. Additionally, opening up the e-file allows Black's queen and rooks to become more active in the game.

White plays Nf3 after 1. e4 e5 to not only develop a piece but also to attack Black's center pawn. The knight also controls key squares in the center and supports the pawn on d4. This move also prepares for the possibility of playing g2-g4, gaining space on the kingside while preventing Black's knight from moving to the square g4. By playing Nf3, White puts pressure on Black to maintain control over the center of the board.

In the Russian Game: Classical Attack, Jaenisch Variation, Black plays Nf6 after 1. e4 e5 2. Nf3 to also develop a piece and put pressure on White's central pawn. This move attacks White's knight and strikes at the center of the board, creating potential for the knight to be supported by pawns or other pieces later on in the game. Nf6 also prepares for the possibility of playing d7-d5, which would further challenge White's central control and possibly open up lines for Black's queen and bishop. This move adds further flexibility to Black's game as it opens up various possibilities for future moves depending on how White chooses to continue their development.

White plays Nxe5 after 1. e4 e5 2. Nf3 Nf6 to attack Black's knight on f6 and gain a temporal advantage by forcing Black to recapture with the pawn. This move also puts pressure on Black's position and creates potential for further attacks on Black's weakened pawn structure. By taking this pawn, White is creating a pawn chain and further securing control over the center of the board. While this move may temporarily expose White's knight to potential attacks, it is balanced by the positional advantages gained.

Black plays d6 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 to protect the knight on e4 and regain control over the square d5. This move also prepares for the development of the bishop on c8, freeing it up to join the game. By playing d6, Black reinforces their pawn structure and solidifies their control over key central squares. Black may look to play d6-d5 in the future, further challenging White's control over the center. This move also prevents potential checks from White's knight via Ng5, which would be a potentially awkward move for Black to deal with.

In the Russian Game: Classical Attack, Jaenisch Variation, White plays Nf3 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 to develop a piece and create threats on Black's pawn on d6. This move additionally gives support to the pawn on e4 and puts pressure on Black's position, forcing Black to make decisions on how to best protect their pawn structure. From f3, the knight also holds control over the key squares in the center of the board and prepares for further piece development. This move also allows White greater flexibility in terms of future moves depending on how Black chooses to develop their own pieces and position their pawn structure.

Black plays Nxe4 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 to regain control over the center of the board and contest White's pawn chain. This move also attacks the pawn on d4, possibly forcing White to give up control over the center or concede their strong knight. Taking the pawn with the knight also allows Black to avoid potential pawn weaknesses in their own structure. This move adds further pressure to White and creates potential counterplay opportunities for Black as White must now respond to the threat on their knight. However, playing Nxe4 also means that Black must be careful with their knight placement and make sure it isn't exposed to potential attacks.

White plays d4 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 to strike back at Black's knight and take advantage of the weak pawn on e4. By playing d4, White also gains greater control over the center of the board and further develops their position, allowing for greater piece mobility and attack potential. This move also creates a pawn chain that supports the white pieces and puts pressure on Black to respond effectively. Additionally, d4 opens up lines for White's dark-squared bishop and queen, creating potential threats on Black's position. In sum, this move increases White's positional advantage and creates potential for further tactics.

In the Russian Game: Classical Attack, Jaenisch Variation, Black plays d5 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 to challenge White's pawn structure and gain greater control over the center of the board. This move also frees up Black's pieces, particularly the bishop on c8 and the queen, and creates potential for future attacks on White's position. By playing d5, Black also puts pressure on White to make precise moves and respond effectively, potentially opening up weaknesses in White's position. This move can also expose Black's pawns to potential attacks from White's pieces, so Black must carefully consider the resulting pawn structure before making this move.

White plays Bd3 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 to develop the bishop and create pressure on Black's knight. This move also prepares for the possibility of castling kingside and allows White to maintain control over the center and support their pawn chain. By playing Bd3, White also frees up their queen and rooks and creates potential for future attacks on Black's position. Additionally, the bishop on d3 can become a valuable defender of White's king and pawns in the endgame. In sum, this move helps White enhance their overall position and provides greater flexibility in terms of future moves.

Black plays Nc6 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 to develop a piece and maintain control over the center of the board. This move also prepares for the future pawn move d5-d4, as Black would then be able to take control over White's knight on e5 with their pawn on d4, potentially creating weaknesses in White's pawn structure. Additionally, Nc6 protects Black's pawn on e5 and allows for potential pawn trades in the center of the board. This move also encourages White to make a decision about whether to exchange knights or retreat their knight to a less centralized square. In sum, Nc6 adds further flexibility to Black's game and creates potential for future counterattacks.

In the Russian Game: Classical Attack, Jaenisch Variation, White plays O-O after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 to castle kingside and free up their rook. This move not only moves their king to a safer position behind their pawn chain, but also connects the rooks and prepares for potential attacks on Black's position. White's pieces are now better coordinated and the king is better protected. By castling kingside, White also puts pressure on Black to make similar moves and address their own king safety. This move adds further flexibility to White's game and creates potential for future attacks.

Black plays Be7 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O to develop the bishop and prepare for future moves. This move also adds further protection to Black's king and creates potential for future attacks on White's position. By playing Be7, Black also eyes the possibility of future pawn advances on the queenside or kingside. Additionally, the bishop on e7 can provide valuable defensive support and control over potential key diagonals. This move also adds greater flexibility to Black's game and creates potential for further counterplay. In sum, Be7 enhances Black's control over the board and increases the options available for future moves.

White plays c4 after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 to further control the center of the board and gain space on the queenside. This move also prepares for the development of White's pieces and allows for greater mobility and coordination between the pieces. By playing c4, White also puts pressure on Black's pawn structure and creates potential for future pawn advances or exchanges. This move can also create potential weaknesses in Black's structure if they fail to respond effectively. In sum, c4 strengthens White's position and creates potential for future attacks on Black's position.